CalendarContract.java revision a07ea5da0751ca297f9176d9deb2e8af9597dfab
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.provider;
18
19
20import android.annotation.SdkConstant;
21import android.annotation.SdkConstant.SdkConstantType;
22import android.app.Activity;
23import android.app.AlarmManager;
24import android.app.PendingIntent;
25import android.content.ContentProviderClient;
26import android.content.ContentResolver;
27import android.content.ContentUris;
28import android.content.ContentValues;
29import android.content.Context;
30import android.content.CursorEntityIterator;
31import android.content.Entity;
32import android.content.EntityIterator;
33import android.content.Intent;
34import android.database.Cursor;
35import android.database.DatabaseUtils;
36import android.net.Uri;
37import android.os.RemoteException;
38import android.text.format.DateUtils;
39import android.text.format.Time;
40import android.util.Log;
41
42/**
43 * <p>
44 * The contract between the calendar provider and applications. Contains
45 * definitions for the supported URIs and data columns.
46 * </p>
47 * <h3>Overview</h3>
48 * <p>
49 * CalendarContract defines the data model of calendar and event related
50 * information. This data is stored in a number of tables:
51 * </p>
52 * <ul>
53 * <li>The {@link Calendars} table holds the calendar specific information. Each
54 * row in this table contains the details for a single calendar, such as the
55 * name, color, sync info, etc.</li>
56 * <li>The {@link Events} table holds the event specific information. Each row
57 * in this table has the info for a single event. It contains information such
58 * as event title, location, start time, end time, etc. The event can occur
59 * one-time or can recur multiple times. Attendees, reminders, and extended
60 * properties are stored on separate tables and reference the {@link Events#_ID}
61 * to link them with the event.</li>
62 * <li>The {@link Instances} table holds the start and end time for occurrences
63 * of an event. Each row in this table represents a single occurrence. For
64 * one-time events there will be a 1:1 mapping of instances to events. For
65 * recurring events, multiple rows will automatically be generated which
66 * correspond to multiple occurrences of that event.</li>
67 * <li>The {@link Attendees} table holds the event attendee or guest
68 * information. Each row represents a single guest of an event. It specifies the
69 * type of guest they are and their attendance response for the event.</li>
70 * <li>The {@link Reminders} table holds the alert/notification data. Each row
71 * represents a single alert for an event. An event can have multiple reminders.
72 * The number of reminders per event is specified in
73 * {@link Calendars#MAX_REMINDERS} which is set by the Sync Adapter that owns
74 * the given calendar. Reminders are specified in minutes before the event and
75 * have a type.</li>
76 * <li>The {@link ExtendedProperties} table holds opaque data fields used by the
77 * sync adapter. The provider takes no action with items in this table except to
78 * delete them when their related events are deleted.</li>
79 * </ul>
80 * <p>
81 * Other tables include:
82 * </p>
83 * <ul>
84 * <li>
85 * {@link SyncState}, which contains free-form data maintained by the sync
86 * adapters</li>
87 * </ul>
88 *
89 */
90public final class CalendarContract {
91    private static final String TAG = "Calendar";
92
93    /**
94     * Broadcast Action: This is the intent that gets fired when an alarm
95     * notification needs to be posted for a reminder.
96     *
97     */
98    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
99    public static final String ACTION_EVENT_REMINDER = "android.intent.action.EVENT_REMINDER";
100
101    /**
102     * Activity Action: Display the event to the user in the custom app as
103     * specified in {@link EventsColumns#CUSTOM_APP_PACKAGE}. The custom app
104     * will be started via {@link Activity#startActivityForResult(Intent, int)}
105     * and it should call {@link Activity#setResult(int)} with
106     * {@link Activity#RESULT_OK} or {@link Activity#RESULT_CANCELED} to
107     * acknowledge whether the action was handled or not.
108     *
109     * The custom app should have an intent-filter like the following
110     * <pre>
111     * {@code
112     * <intent-filter>
113     *    <action android:name="android.provider.calendar.action.HANDLE_CUSTOM_EVENT" />
114     *    <category android:name="android.intent.category.DEFAULT" />
115     *    <data android:mimeType="vnd.android.cursor.item/event" />
116     * </intent-filter>
117     * }
118     * </pre>
119     * <p>
120     * Input: {@link Intent#getData} has the event URI. The extra
121     * {@link #EXTRA_EVENT_BEGIN_TIME} has the start time of the instance. The
122     * extra {@link #EXTRA_CUSTOM_APP_URI} will have the
123     * {@link EventsColumns#CUSTOM_APP_URI}.
124     * <p>
125     * Output: {@link Activity#RESULT_OK} if this was handled; otherwise
126     * {@link Activity#RESULT_CANCELED}
127     */
128    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
129    public static final String ACTION_HANDLE_CUSTOM_EVENT =
130        "android.provider.calendar.action.HANDLE_CUSTOM_EVENT";
131
132    /**
133     * Intent Extras key: {@link EventsColumns#CUSTOM_APP_URI} for the event in
134     * the {@link #ACTION_HANDLE_CUSTOM_EVENT} intent
135     */
136    public static final String EXTRA_CUSTOM_APP_URI = "customAppUri";
137
138    /**
139     * Intent Extras key: The start time of an event or an instance of a
140     * recurring event. (milliseconds since epoch)
141     */
142    public static final String EXTRA_EVENT_BEGIN_TIME = "beginTime";
143
144    /**
145     * Intent Extras key: The end time of an event or an instance of a recurring
146     * event. (milliseconds since epoch)
147     */
148    public static final String EXTRA_EVENT_END_TIME = "endTime";
149
150    /**
151     * Intent Extras key: When creating an event, set this to true to create an
152     * all-day event by default
153     */
154    public static final String EXTRA_EVENT_ALL_DAY = "allDay";
155
156    /**
157     * This authority is used for writing to or querying from the calendar
158     * provider. Note: This is set at first run and cannot be changed without
159     * breaking apps that access the provider.
160     */
161    public static final String AUTHORITY = "com.android.calendar";
162
163    /**
164     * The content:// style URL for the top-level calendar authority
165     */
166    public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY);
167
168    /**
169     * An optional insert, update or delete URI parameter that allows the caller
170     * to specify that it is a sync adapter. The default value is false. If set
171     * to true, the modified row is not marked as "dirty" (needs to be synced)
172     * and when the provider calls
173     * {@link ContentResolver#notifyChange(android.net.Uri, android.database.ContentObserver, boolean)}
174     * , the third parameter "syncToNetwork" is set to false. Furthermore, if
175     * set to true, the caller must also include
176     * {@link Calendars#ACCOUNT_NAME} and {@link Calendars#ACCOUNT_TYPE} as
177     * query parameters.
178     *
179     * @see Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)
180     */
181    public static final String CALLER_IS_SYNCADAPTER = "caller_is_syncadapter";
182
183    /**
184     * A special account type for calendars not associated with any account.
185     * Normally calendars that do not match an account on the device will be
186     * removed. Setting the account_type on a calendar to this will prevent it
187     * from being wiped if it does not match an existing account.
188     *
189     * @see SyncColumns#ACCOUNT_TYPE
190     */
191    public static final String ACCOUNT_TYPE_LOCAL = "LOCAL";
192
193    /**
194     * This utility class cannot be instantiated
195     */
196    private CalendarContract() {}
197
198    /**
199     * Generic columns for use by sync adapters. The specific functions of these
200     * columns are private to the sync adapter. Other clients of the API should
201     * not attempt to either read or write this column. These columns are
202     * editable as part of the Calendars Uri, but can only be read if accessed
203     * through any other Uri.
204     */
205    protected interface CalendarSyncColumns {
206
207
208        /**
209         * Generic column for use by sync adapters. Column name.
210         * <P>Type: TEXT</P>
211         */
212        public static final String CAL_SYNC1 = "cal_sync1";
213
214        /**
215         * Generic column for use by sync adapters. Column name.
216         * <P>Type: TEXT</P>
217         */
218        public static final String CAL_SYNC2 = "cal_sync2";
219
220        /**
221         * Generic column for use by sync adapters. Column name.
222         * <P>Type: TEXT</P>
223         */
224        public static final String CAL_SYNC3 = "cal_sync3";
225
226        /**
227         * Generic column for use by sync adapters. Column name.
228         * <P>Type: TEXT</P>
229         */
230        public static final String CAL_SYNC4 = "cal_sync4";
231
232        /**
233         * Generic column for use by sync adapters. Column name.
234         * <P>Type: TEXT</P>
235         */
236        public static final String CAL_SYNC5 = "cal_sync5";
237
238        /**
239         * Generic column for use by sync adapters. Column name.
240         * <P>Type: TEXT</P>
241         */
242        public static final String CAL_SYNC6 = "cal_sync6";
243
244        /**
245         * Generic column for use by sync adapters. Column name.
246         * <P>Type: TEXT</P>
247         */
248        public static final String CAL_SYNC7 = "cal_sync7";
249
250        /**
251         * Generic column for use by sync adapters. Column name.
252         * <P>Type: TEXT</P>
253         */
254        public static final String CAL_SYNC8 = "cal_sync8";
255
256        /**
257         * Generic column for use by sync adapters. Column name.
258         * <P>Type: TEXT</P>
259         */
260        public static final String CAL_SYNC9 = "cal_sync9";
261
262        /**
263         * Generic column for use by sync adapters. Column name.
264         * <P>Type: TEXT</P>
265         */
266        public static final String CAL_SYNC10 = "cal_sync10";
267    }
268
269    /**
270     * Columns for Sync information used by Calendars and Events tables. These
271     * have specific uses which are expected to be consistent by the app and
272     * sync adapter.
273     *
274     */
275    protected interface SyncColumns extends CalendarSyncColumns {
276        /**
277         * The account that was used to sync the entry to the device. If the
278         * account_type is not {@link #ACCOUNT_TYPE_LOCAL} then the name and
279         * type must match an account on the device or the calendar will be
280         * deleted.
281         * <P>Type: TEXT</P>
282         */
283        public static final String ACCOUNT_NAME = "account_name";
284
285        /**
286         * The type of the account that was used to sync the entry to the
287         * device. A type of {@link #ACCOUNT_TYPE_LOCAL} will keep this event
288         * form being deleted if there are no matching accounts on the device.
289         * <P>Type: TEXT</P>
290         */
291        public static final String ACCOUNT_TYPE = "account_type";
292
293        /**
294         * The unique ID for a row assigned by the sync source. NULL if the row
295         * has never been synced. This is used as a reference id for exceptions
296         * along with {@link BaseColumns#_ID}.
297         * <P>Type: TEXT</P>
298         */
299        public static final String _SYNC_ID = "_sync_id";
300
301        /**
302         * Used to indicate that local, unsynced, changes are present.
303         * <P>Type: INTEGER (long)</P>
304         */
305        public static final String DIRTY = "dirty";
306
307        /**
308         * Whether the row has been deleted but not synced to the server. A
309         * deleted row should be ignored.
310         * <P>
311         * Type: INTEGER (boolean)
312         * </P>
313         */
314        public static final String DELETED = "deleted";
315
316        /**
317         * If set to 1 this causes events on this calendar to be duplicated with
318         * {@link Events#LAST_SYNCED} set to 1 whenever the event
319         * transitions from non-dirty to dirty. The duplicated event will not be
320         * expanded in the instances table and will only show up in sync adapter
321         * queries of the events table. It will also be deleted when the
322         * originating event has its dirty flag cleared by the sync adapter.
323         * <P>Type: INTEGER (boolean)</P>
324         */
325        public static final String CAN_PARTIALLY_UPDATE = "canPartiallyUpdate";
326    }
327
328    /**
329     * Columns specific to the Calendars Uri that other Uris can query.
330     */
331    protected interface CalendarColumns {
332        /**
333         * The color of the calendar. This should only be updated by the sync
334         * adapter, not other apps, as changing a calendar's color can adversely
335         * affect its display.
336         * <P>Type: INTEGER (color value)</P>
337         */
338        public static final String CALENDAR_COLOR = "calendar_color";
339
340        /**
341         * A key for looking up a color from the {@link Colors} table. NULL or
342         * an empty string are reserved for indicating that the calendar does
343         * not use a key for looking up the color. The provider will update
344         * {@link #CALENDAR_COLOR} automatically when a valid key is written to
345         * this column. The key must reference an existing row of the
346         * {@link Colors} table. @see Colors
347         * <P>
348         * Type: TEXT
349         * </P>
350         */
351        public static final String CALENDAR_COLOR_KEY = "calendar_color_index";
352
353        /**
354         * The display name of the calendar. Column name.
355         * <P>
356         * Type: TEXT
357         * </P>
358         */
359        public static final String CALENDAR_DISPLAY_NAME = "calendar_displayName";
360
361        /**
362         * The level of access that the user has for the calendar
363         * <P>Type: INTEGER (one of the values below)</P>
364         */
365        public static final String CALENDAR_ACCESS_LEVEL = "calendar_access_level";
366
367        /** Cannot access the calendar */
368        public static final int CAL_ACCESS_NONE = 0;
369        /** Can only see free/busy information about the calendar */
370        public static final int CAL_ACCESS_FREEBUSY = 100;
371        /** Can read all event details */
372        public static final int CAL_ACCESS_READ = 200;
373        /** Can reply yes/no/maybe to an event */
374        public static final int CAL_ACCESS_RESPOND = 300;
375        /** not used */
376        public static final int CAL_ACCESS_OVERRIDE = 400;
377        /** Full access to modify the calendar, but not the access control
378         * settings
379         */
380        public static final int CAL_ACCESS_CONTRIBUTOR = 500;
381        /** Full access to modify the calendar, but not the access control
382         * settings
383         */
384        public static final int CAL_ACCESS_EDITOR = 600;
385        /** Full access to the calendar */
386        public static final int CAL_ACCESS_OWNER = 700;
387        /** Domain admin */
388        public static final int CAL_ACCESS_ROOT = 800;
389
390        /**
391         * Is the calendar selected to be displayed?
392         * 0 - do not show events associated with this calendar.
393         * 1 - show events associated with this calendar
394         * <P>Type: INTEGER (boolean)</P>
395         */
396        public static final String VISIBLE = "visible";
397
398        /**
399         * The time zone the calendar is associated with.
400         * <P>Type: TEXT</P>
401         */
402        public static final String CALENDAR_TIME_ZONE = "calendar_timezone";
403
404        /**
405         * Is this calendar synced and are its events stored on the device?
406         * 0 - Do not sync this calendar or store events for this calendar.
407         * 1 - Sync down events for this calendar.
408         * <p>Type: INTEGER (boolean)</p>
409         */
410        public static final String SYNC_EVENTS = "sync_events";
411
412        /**
413         * The owner account for this calendar, based on the calendar feed.
414         * This will be different from the _SYNC_ACCOUNT for delegated calendars.
415         * Column name.
416         * <P>Type: String</P>
417         */
418        public static final String OWNER_ACCOUNT = "ownerAccount";
419
420        /**
421         * Can the organizer respond to the event?  If no, the status of the
422         * organizer should not be shown by the UI.  Defaults to 1. Column name.
423         * <P>Type: INTEGER (boolean)</P>
424         */
425        public static final String CAN_ORGANIZER_RESPOND = "canOrganizerRespond";
426
427        /**
428         * Can the organizer modify the time zone of the event? Column name.
429         * <P>Type: INTEGER (boolean)</P>
430        */
431        public static final String CAN_MODIFY_TIME_ZONE = "canModifyTimeZone";
432
433        /**
434         * The maximum number of reminders allowed for an event. Column name.
435         * <P>Type: INTEGER</P>
436         */
437        public static final String MAX_REMINDERS = "maxReminders";
438
439        /**
440         * A comma separated list of reminder methods supported for this
441         * calendar in the format "#,#,#". Valid types are
442         * {@link Reminders#METHOD_DEFAULT}, {@link Reminders#METHOD_ALERT},
443         * {@link Reminders#METHOD_EMAIL}, {@link Reminders#METHOD_SMS},
444         * {@link Reminders#METHOD_ALARM}. Column name.
445         * <P>Type: TEXT</P>
446         */
447        public static final String ALLOWED_REMINDERS = "allowedReminders";
448
449        /**
450         * A comma separated list of availability types supported for this
451         * calendar in the format "#,#,#". Valid types are
452         * {@link Events#AVAILABILITY_BUSY}, {@link Events#AVAILABILITY_FREE},
453         * {@link Events#AVAILABILITY_TENTATIVE}. Setting this field to only
454         * {@link Events#AVAILABILITY_BUSY} should be used to indicate that
455         * changing the availability is not supported.
456         *
457         */
458        public static final String ALLOWED_AVAILABILITY = "allowedAvailability";
459
460        /**
461         * A comma separated list of attendee types supported for this calendar
462         * in the format "#,#,#". Valid types are {@link Attendees#TYPE_NONE},
463         * {@link Attendees#TYPE_OPTIONAL}, {@link Attendees#TYPE_REQUIRED},
464         * {@link Attendees#TYPE_RESOURCE}. Setting this field to only
465         * {@link Attendees#TYPE_NONE} should be used to indicate that changing
466         * the attendee type is not supported.
467         *
468         */
469        public static final String ALLOWED_ATTENDEE_TYPES = "allowedAttendeeTypes";
470    }
471
472    /**
473     * Class that represents a Calendar Entity. There is one entry per calendar.
474     * This is a helper class to make batch operations easier.
475     */
476    public static final class CalendarEntity implements BaseColumns, SyncColumns, CalendarColumns {
477
478        /**
479         * The default Uri used when creating a new calendar EntityIterator.
480         */
481        @SuppressWarnings("hiding")
482        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
483                "/calendar_entities");
484
485        /**
486         * This utility class cannot be instantiated
487         */
488        private CalendarEntity() {}
489
490        /**
491         * Creates an entity iterator for the given cursor. It assumes the
492         * cursor contains a calendars query.
493         *
494         * @param cursor query on {@link #CONTENT_URI}
495         * @return an EntityIterator of calendars
496         */
497        public static EntityIterator newEntityIterator(Cursor cursor) {
498            return new EntityIteratorImpl(cursor);
499        }
500
501        private static class EntityIteratorImpl extends CursorEntityIterator {
502
503            public EntityIteratorImpl(Cursor cursor) {
504                super(cursor);
505            }
506
507            @Override
508            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
509                // we expect the cursor is already at the row we need to read from
510                final long calendarId = cursor.getLong(cursor.getColumnIndexOrThrow(_ID));
511
512                // Create the content value
513                ContentValues cv = new ContentValues();
514                cv.put(_ID, calendarId);
515
516                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_NAME);
517                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_TYPE);
518
519                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
520                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
521
522                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
523                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
524                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
525                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
526                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
527                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
528                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
529                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
530                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
531                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
532
533                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, Calendars.NAME);
534                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
535                        Calendars.CALENDAR_DISPLAY_NAME);
536                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
537                        Calendars.CALENDAR_COLOR);
538                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ACCESS_LEVEL);
539                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, VISIBLE);
540                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SYNC_EVENTS);
541                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
542                        Calendars.CALENDAR_LOCATION);
543                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CALENDAR_TIME_ZONE);
544                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
545                        Calendars.OWNER_ACCOUNT);
546                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
547                        Calendars.CAN_ORGANIZER_RESPOND);
548                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
549                        Calendars.CAN_MODIFY_TIME_ZONE);
550                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
551                        Calendars.MAX_REMINDERS);
552                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
553                        Calendars.CAN_PARTIALLY_UPDATE);
554                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
555                        Calendars.ALLOWED_REMINDERS);
556
557                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
558
559                // Create the Entity from the ContentValue
560                Entity entity = new Entity(cv);
561
562                // Set cursor to next row
563                cursor.moveToNext();
564
565                // Return the created Entity
566                return entity;
567            }
568        }
569     }
570
571    /**
572     * Constants and helpers for the Calendars table, which contains details for
573     * individual calendars. <h3>Operations</h3> All operations can be done
574     * either as an app or as a sync adapter. To perform an operation as a sync
575     * adapter {@link #CALLER_IS_SYNCADAPTER} should be set to true and
576     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
577     * parameters. See
578     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
579     * for details on adding parameters. Sync adapters have write access to more
580     * columns but are restricted to a single account at a time. Calendars are
581     * designed to be primarily managed by a sync adapter and inserting new
582     * calendars should be done as a sync adapter. For the most part, apps
583     * should only update calendars (such as changing the color or display
584     * name). If a local calendar is required an app can do so by inserting as a
585     * sync adapter and using an {@link #ACCOUNT_TYPE} of
586     * {@link #ACCOUNT_TYPE_LOCAL} .
587     * <dl>
588     * <dt><b>Insert</b></dt>
589     * <dd>When inserting a new calendar the following fields must be included:
590     * <ul>
591     * <li>{@link #ACCOUNT_NAME}</li>
592     * <li>{@link #ACCOUNT_TYPE}</li>
593     * <li>{@link #NAME}</li>
594     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
595     * <li>{@link #CALENDAR_COLOR}</li>
596     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
597     * <li>{@link #OWNER_ACCOUNT}</li>
598     * </ul>
599     * The following fields are not required when inserting a Calendar but are
600     * generally a good idea to include:
601     * <ul>
602     * <li>{@link #SYNC_EVENTS} set to 1</li>
603     * <li>{@link #CALENDAR_TIME_ZONE}</li>
604     * <li>{@link #ALLOWED_REMINDERS}</li>
605     * <li>{@link #ALLOWED_AVAILABILITY}</li>
606     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
607     * </ul>
608     * <dt><b>Update</b></dt>
609     * <dd>To perform an update on a calendar the {@link #_ID} of the calendar
610     * should be provided either as an appended id to the Uri (
611     * {@link ContentUris#withAppendedId}) or as the first selection item--the
612     * selection should start with "_id=?" and the first selectionArg should be
613     * the _id of the calendar. Calendars may also be updated using a selection
614     * without the id. In general, the {@link #ACCOUNT_NAME} and
615     * {@link #ACCOUNT_TYPE} should not be changed after a calendar is created
616     * as this can cause issues for sync adapters.
617     * <dt><b>Delete</b></dt>
618     * <dd>Calendars can be deleted either by the {@link #_ID} as an appended id
619     * on the Uri or using any standard selection. Deleting a calendar should
620     * generally be handled by a sync adapter as it will remove the calendar
621     * from the database and all associated data (aka events).</dd>
622     * <dt><b>Query</b></dt>
623     * <dd>Querying the Calendars table will get you all information about a set
624     * of calendars. There will be one row returned for each calendar that
625     * matches the query selection, or at most a single row if the {@link #_ID}
626     * is appended to the Uri.</dd>
627     * </dl>
628     * <h3>Calendar Columns</h3> The following Calendar columns are writable by
629     * both an app and a sync adapter.
630     * <ul>
631     * <li>{@link #NAME}</li>
632     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
633     * <li>{@link #VISIBLE}</li>
634     * <li>{@link #SYNC_EVENTS}</li>
635     * </ul>
636     * The following Calendars columns are writable only by a sync adapter
637     * <ul>
638     * <li>{@link #ACCOUNT_NAME}</li>
639     * <li>{@link #ACCOUNT_TYPE}</li>
640     * <li>{@link #CALENDAR_COLOR}</li>
641     * <li>{@link #_SYNC_ID}</li>
642     * <li>{@link #DIRTY}</li>
643     * <li>{@link #OWNER_ACCOUNT}</li>
644     * <li>{@link #MAX_REMINDERS}</li>
645     * <li>{@link #ALLOWED_REMINDERS}</li>
646     * <li>{@link #ALLOWED_AVAILABILITY}</li>
647     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
648     * <li>{@link #CAN_MODIFY_TIME_ZONE}</li>
649     * <li>{@link #CAN_ORGANIZER_RESPOND}</li>
650     * <li>{@link #CAN_PARTIALLY_UPDATE}</li>
651     * <li>{@link #CALENDAR_LOCATION}</li>
652     * <li>{@link #CALENDAR_TIME_ZONE}</li>
653     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
654     * <li>{@link #DELETED}</li>
655     * <li>{@link #CAL_SYNC1}</li>
656     * <li>{@link #CAL_SYNC2}</li>
657     * <li>{@link #CAL_SYNC3}</li>
658     * <li>{@link #CAL_SYNC4}</li>
659     * <li>{@link #CAL_SYNC5}</li>
660     * <li>{@link #CAL_SYNC6}</li>
661     * <li>{@link #CAL_SYNC7}</li>
662     * <li>{@link #CAL_SYNC8}</li>
663     * <li>{@link #CAL_SYNC9}</li>
664     * <li>{@link #CAL_SYNC10}</li>
665     * </ul>
666     */
667    public static final class Calendars implements BaseColumns, SyncColumns, CalendarColumns {
668
669        /**
670         * This utility class cannot be instantiated
671         */
672        private Calendars() {}
673
674        /**
675         * The content:// style URL for accessing Calendars
676         */
677        @SuppressWarnings("hiding")
678        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/calendars");
679
680        /**
681         * The default sort order for this table
682         */
683        public static final String DEFAULT_SORT_ORDER = CALENDAR_DISPLAY_NAME;
684
685        /**
686         * The name of the calendar. Column name.
687         * <P>Type: TEXT</P>
688         */
689        public static final String NAME = "name";
690
691        /**
692         * The default location for the calendar. Column name.
693         * <P>Type: TEXT</P>
694         */
695        public static final String CALENDAR_LOCATION = "calendar_location";
696
697        /**
698         * These fields are only writable by a sync adapter. To modify them the
699         * caller must include {@link #CALLER_IS_SYNCADAPTER},
700         * {@link #ACCOUNT_NAME}, and {@link #ACCOUNT_TYPE} in the Uri's query
701         * parameters. TODO move to provider
702         *
703         * @hide
704         */
705        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
706            ACCOUNT_NAME,
707            ACCOUNT_TYPE,
708            _SYNC_ID,
709            DIRTY,
710            OWNER_ACCOUNT,
711            MAX_REMINDERS,
712            ALLOWED_REMINDERS,
713            CAN_MODIFY_TIME_ZONE,
714            CAN_ORGANIZER_RESPOND,
715            CAN_PARTIALLY_UPDATE,
716            CALENDAR_LOCATION,
717            CALENDAR_TIME_ZONE,
718            CALENDAR_ACCESS_LEVEL,
719            DELETED,
720            CAL_SYNC1,
721            CAL_SYNC2,
722            CAL_SYNC3,
723            CAL_SYNC4,
724            CAL_SYNC5,
725            CAL_SYNC6,
726            CAL_SYNC7,
727            CAL_SYNC8,
728            CAL_SYNC9,
729            CAL_SYNC10,
730        };
731    }
732
733    /**
734     * Columns from the Attendees table that other tables join into themselves.
735     */
736    protected interface AttendeesColumns {
737
738        /**
739         * The id of the event. Column name.
740         * <P>Type: INTEGER</P>
741         */
742        public static final String EVENT_ID = "event_id";
743
744        /**
745         * The name of the attendee. Column name.
746         * <P>Type: STRING</P>
747         */
748        public static final String ATTENDEE_NAME = "attendeeName";
749
750        /**
751         * The email address of the attendee. Column name.
752         * <P>Type: STRING</P>
753         */
754        public static final String ATTENDEE_EMAIL = "attendeeEmail";
755
756        /**
757         * The relationship of the attendee to the user. Column name.
758         * <P>Type: INTEGER (one of {@link #RELATIONSHIP_ATTENDEE}, ...}.</P>
759         */
760        public static final String ATTENDEE_RELATIONSHIP = "attendeeRelationship";
761
762        public static final int RELATIONSHIP_NONE = 0;
763        public static final int RELATIONSHIP_ATTENDEE = 1;
764        public static final int RELATIONSHIP_ORGANIZER = 2;
765        public static final int RELATIONSHIP_PERFORMER = 3;
766        public static final int RELATIONSHIP_SPEAKER = 4;
767
768        /**
769         * The type of attendee. Column name.
770         * <P>
771         * Type: Integer (one of {@link #TYPE_NONE}, {@link #TYPE_REQUIRED},
772         * {@link #TYPE_OPTIONAL}, {@link #TYPE_RESOURCE})
773         * </P>
774         */
775        public static final String ATTENDEE_TYPE = "attendeeType";
776
777        public static final int TYPE_NONE = 0;
778        public static final int TYPE_REQUIRED = 1;
779        public static final int TYPE_OPTIONAL = 2;
780        /**
781         * This specifies that an attendee is a resource, like a room, a
782         * cabbage, or something and not an actual person.
783         */
784        public static final int TYPE_RESOURCE = 3;
785
786        /**
787         * The attendance status of the attendee. Column name.
788         * <P>Type: Integer (one of {@link #ATTENDEE_STATUS_ACCEPTED}, ...).</P>
789         */
790        public static final String ATTENDEE_STATUS = "attendeeStatus";
791
792        public static final int ATTENDEE_STATUS_NONE = 0;
793        public static final int ATTENDEE_STATUS_ACCEPTED = 1;
794        public static final int ATTENDEE_STATUS_DECLINED = 2;
795        public static final int ATTENDEE_STATUS_INVITED = 3;
796        public static final int ATTENDEE_STATUS_TENTATIVE = 4;
797
798        /**
799         * The identity of the attendee as referenced in
800         * {@link ContactsContract.CommonDataKinds.Identity#IDENTITY}.
801         * This is required only if {@link #ATTENDEE_ID_NAMESPACE} is present. Column name.
802         * <P>Type: STRING</P>
803         */
804        public static final String ATTENDEE_IDENTITY = "attendeeIdentity";
805
806        /**
807         * The identity name space of the attendee as referenced in
808         * {@link ContactsContract.CommonDataKinds.Identity#NAMESPACE}.
809         * This is required only if {@link #ATTENDEE_IDENTITY} is present. Column name.
810         * <P>Type: STRING</P>
811         */
812        public static final String ATTENDEE_ID_NAMESPACE = "attendeeIdNamespace";
813    }
814
815    /**
816     * Fields and helpers for interacting with Attendees. Each row of this table
817     * represents a single attendee or guest of an event. Calling
818     * {@link #query(ContentResolver, long, String[])} will return a list of attendees for
819     * the event with the given eventId. Both apps and sync adapters may write
820     * to this table. There are six writable fields and all of them except
821     * {@link #ATTENDEE_NAME} must be included when inserting a new attendee.
822     * They are:
823     * <ul>
824     * <li>{@link #EVENT_ID}</li>
825     * <li>{@link #ATTENDEE_NAME}</li>
826     * <li>{@link #ATTENDEE_EMAIL}</li>
827     * <li>{@link #ATTENDEE_RELATIONSHIP}</li>
828     * <li>{@link #ATTENDEE_TYPE}</li>
829     * <li>{@link #ATTENDEE_STATUS}</li>
830     * <li>{@link #ATTENDEE_IDENTITY}</li>
831     * <li>{@link #ATTENDEE_ID_NAMESPACE}</li>
832     * </ul>
833     */
834    public static final class Attendees implements BaseColumns, AttendeesColumns, EventsColumns {
835
836        /**
837         * The content:// style URL for accessing Attendees data
838         */
839        @SuppressWarnings("hiding")
840        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/attendees");
841        private static final String ATTENDEES_WHERE = Attendees.EVENT_ID + "=?";
842
843        /**
844         * This utility class cannot be instantiated
845         */
846        private Attendees() {}
847
848        /**
849         * Queries all attendees associated with the given event. This is a
850         * blocking call and should not be done on the UI thread.
851         *
852         * @param cr The content resolver to use for the query
853         * @param eventId The id of the event to retrieve attendees for
854         * @param projection the columns to return in the cursor
855         * @return A Cursor containing all attendees for the event
856         */
857        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
858            String[] attArgs = {Long.toString(eventId)};
859            return cr.query(CONTENT_URI, projection, ATTENDEES_WHERE, attArgs /* selection args */,
860                    null /* sort order */);
861        }
862    }
863
864    /**
865     * Columns from the Events table that other tables join into themselves.
866     */
867    protected interface EventsColumns {
868
869        /**
870         * The {@link Calendars#_ID} of the calendar the event belongs to.
871         * Column name.
872         * <P>Type: INTEGER</P>
873         */
874        public static final String CALENDAR_ID = "calendar_id";
875
876        /**
877         * The title of the event. Column name.
878         * <P>Type: TEXT</P>
879         */
880        public static final String TITLE = "title";
881
882        /**
883         * The description of the event. Column name.
884         * <P>Type: TEXT</P>
885         */
886        public static final String DESCRIPTION = "description";
887
888        /**
889         * Where the event takes place. Column name.
890         * <P>Type: TEXT</P>
891         */
892        public static final String EVENT_LOCATION = "eventLocation";
893
894        /**
895         * A secondary color for the individual event. This should only be
896         * updated by the sync adapter for a given account.
897         * <P>Type: INTEGER</P>
898         */
899        public static final String EVENT_COLOR = "eventColor";
900
901        /**
902         * A secondary color key for the individual event. NULL or an empty
903         * string are reserved for indicating that the event does not use a key
904         * for looking up the color. The provider will update
905         * {@link #EVENT_COLOR} automatically when a valid key is written to
906         * this column. The key must reference an existing row of the
907         * {@link Colors} table. @see Colors
908         * <P>
909         * Type: TEXT
910         * </P>
911         */
912        public static final String EVENT_COLOR_KEY = "eventColor_index";
913
914        /**
915         * This will be {@link #EVENT_COLOR} if it is not null; otherwise, this will be
916         * {@link Calendars#CALENDAR_COLOR}.
917         * Read-only value. To modify, write to {@link #EVENT_COLOR} or
918         * {@link Calendars#CALENDAR_COLOR} directly.
919         *<P>
920         *     Type: INTEGER
921         *</P>
922         */
923        public static final String DISPLAY_COLOR = "displayColor";
924
925        /**
926         * The event status. Column name.
927         * <P>Type: INTEGER (one of {@link #STATUS_TENTATIVE}...)</P>
928         */
929        public static final String STATUS = "eventStatus";
930
931        public static final int STATUS_TENTATIVE = 0;
932        public static final int STATUS_CONFIRMED = 1;
933        public static final int STATUS_CANCELED = 2;
934
935        /**
936         * This is a copy of the attendee status for the owner of this event.
937         * This field is copied here so that we can efficiently filter out
938         * events that are declined without having to look in the Attendees
939         * table. Column name.
940         *
941         * <P>Type: INTEGER (int)</P>
942         */
943        public static final String SELF_ATTENDEE_STATUS = "selfAttendeeStatus";
944
945        /**
946         * This column is available for use by sync adapters. Column name.
947         * <P>Type: TEXT</P>
948         */
949        public static final String SYNC_DATA1 = "sync_data1";
950
951        /**
952         * This column is available for use by sync adapters. Column name.
953         * <P>Type: TEXT</P>
954         */
955        public static final String SYNC_DATA2 = "sync_data2";
956
957        /**
958         * This column is available for use by sync adapters. Column name.
959         * <P>Type: TEXT</P>
960         */
961        public static final String SYNC_DATA3 = "sync_data3";
962
963        /**
964         * This column is available for use by sync adapters. Column name.
965         * <P>Type: TEXT</P>
966         */
967        public static final String SYNC_DATA4 = "sync_data4";
968
969        /**
970         * This column is available for use by sync adapters. Column name.
971         * <P>Type: TEXT</P>
972         */
973        public static final String SYNC_DATA5 = "sync_data5";
974
975        /**
976         * This column is available for use by sync adapters. Column name.
977         * <P>Type: TEXT</P>
978         */
979        public static final String SYNC_DATA6 = "sync_data6";
980
981        /**
982         * This column is available for use by sync adapters. Column name.
983         * <P>Type: TEXT</P>
984         */
985        public static final String SYNC_DATA7 = "sync_data7";
986
987        /**
988         * This column is available for use by sync adapters. Column name.
989         * <P>Type: TEXT</P>
990         */
991        public static final String SYNC_DATA8 = "sync_data8";
992
993        /**
994         * This column is available for use by sync adapters. Column name.
995         * <P>Type: TEXT</P>
996         */
997        public static final String SYNC_DATA9 = "sync_data9";
998
999        /**
1000         * This column is available for use by sync adapters. Column name.
1001         * <P>Type: TEXT</P>
1002         */
1003        public static final String SYNC_DATA10 = "sync_data10";
1004
1005        /**
1006         * Used to indicate that a row is not a real event but an original copy of a locally
1007         * modified event. A copy is made when an event changes from non-dirty to dirty and the
1008         * event is on a calendar with {@link Calendars#CAN_PARTIALLY_UPDATE} set to 1. This copy
1009         * does not get expanded in the instances table and is only visible in queries made by a
1010         * sync adapter. The copy gets removed when the event is changed back to non-dirty by a
1011         * sync adapter.
1012         * <P>Type: INTEGER (boolean)</P>
1013         */
1014        public static final String LAST_SYNCED = "lastSynced";
1015
1016        /**
1017         * The time the event starts in UTC millis since epoch. Column name.
1018         * <P>Type: INTEGER (long; millis since epoch)</P>
1019         */
1020        public static final String DTSTART = "dtstart";
1021
1022        /**
1023         * The time the event ends in UTC millis since epoch. Column name.
1024         * <P>Type: INTEGER (long; millis since epoch)</P>
1025         */
1026        public static final String DTEND = "dtend";
1027
1028        /**
1029         * The duration of the event in RFC2445 format. Column name.
1030         * <P>Type: TEXT (duration in RFC2445 format)</P>
1031         */
1032        public static final String DURATION = "duration";
1033
1034        /**
1035         * The timezone for the event. Column name.
1036         * <P>Type: TEXT</P>
1037         */
1038        public static final String EVENT_TIMEZONE = "eventTimezone";
1039
1040        /**
1041         * The timezone for the end time of the event. Column name.
1042         * <P>Type: TEXT</P>
1043         */
1044        public static final String EVENT_END_TIMEZONE = "eventEndTimezone";
1045
1046        /**
1047         * Is the event all day (time zone independent). Column name.
1048         * <P>Type: INTEGER (boolean)</P>
1049         */
1050        public static final String ALL_DAY = "allDay";
1051
1052        /**
1053         * Defines how the event shows up for others when the calendar is
1054         * shared. Column name.
1055         * <P>Type: INTEGER (One of {@link #ACCESS_DEFAULT}, ...)</P>
1056         */
1057        public static final String ACCESS_LEVEL = "accessLevel";
1058
1059        /**
1060         * Default access is controlled by the server and will be treated as
1061         * public on the device.
1062         */
1063        public static final int ACCESS_DEFAULT = 0;
1064        /**
1065         * Confidential is not used by the app.
1066         */
1067        public static final int ACCESS_CONFIDENTIAL = 1;
1068        /**
1069         * Private shares the event as a free/busy slot with no details.
1070         */
1071        public static final int ACCESS_PRIVATE = 2;
1072        /**
1073         * Public makes the contents visible to anyone with access to the
1074         * calendar.
1075         */
1076        public static final int ACCESS_PUBLIC = 3;
1077
1078        /**
1079         * If this event counts as busy time or is still free time that can be
1080         * scheduled over. Column name.
1081         * <P>
1082         * Type: INTEGER (One of {@link #AVAILABILITY_BUSY},
1083         * {@link #AVAILABILITY_FREE}, {@link #AVAILABILITY_TENTATIVE})
1084         * </P>
1085         */
1086        public static final String AVAILABILITY = "availability";
1087
1088        /**
1089         * Indicates that this event takes up time and will conflict with other
1090         * events.
1091         */
1092        public static final int AVAILABILITY_BUSY = 0;
1093        /**
1094         * Indicates that this event is free time and will not conflict with
1095         * other events.
1096         */
1097        public static final int AVAILABILITY_FREE = 1;
1098        /**
1099         * Indicates that the owner's availability may change, but should be
1100         * considered busy time that will conflict.
1101         */
1102        public static final int AVAILABILITY_TENTATIVE = 2;
1103
1104        /**
1105         * Whether the event has an alarm or not. Column name.
1106         * <P>Type: INTEGER (boolean)</P>
1107         */
1108        public static final String HAS_ALARM = "hasAlarm";
1109
1110        /**
1111         * Whether the event has extended properties or not. Column name.
1112         * <P>Type: INTEGER (boolean)</P>
1113         */
1114        public static final String HAS_EXTENDED_PROPERTIES = "hasExtendedProperties";
1115
1116        /**
1117         * The recurrence rule for the event. Column name.
1118         * <P>Type: TEXT</P>
1119         */
1120        public static final String RRULE = "rrule";
1121
1122        /**
1123         * The recurrence dates for the event. Column name.
1124         * <P>Type: TEXT</P>
1125         */
1126        public static final String RDATE = "rdate";
1127
1128        /**
1129         * The recurrence exception rule for the event. Column name.
1130         * <P>Type: TEXT</P>
1131         */
1132        public static final String EXRULE = "exrule";
1133
1134        /**
1135         * The recurrence exception dates for the event. Column name.
1136         * <P>Type: TEXT</P>
1137         */
1138        public static final String EXDATE = "exdate";
1139
1140        /**
1141         * The {@link Events#_ID} of the original recurring event for which this
1142         * event is an exception. Column name.
1143         * <P>Type: TEXT</P>
1144         */
1145        public static final String ORIGINAL_ID = "original_id";
1146
1147        /**
1148         * The _sync_id of the original recurring event for which this event is
1149         * an exception. The provider should keep the original_id in sync when
1150         * this is updated. Column name.
1151         * <P>Type: TEXT</P>
1152         */
1153        public static final String ORIGINAL_SYNC_ID = "original_sync_id";
1154
1155        /**
1156         * The original instance time of the recurring event for which this
1157         * event is an exception. Column name.
1158         * <P>Type: INTEGER (long; millis since epoch)</P>
1159         */
1160        public static final String ORIGINAL_INSTANCE_TIME = "originalInstanceTime";
1161
1162        /**
1163         * The allDay status (true or false) of the original recurring event
1164         * for which this event is an exception. Column name.
1165         * <P>Type: INTEGER (boolean)</P>
1166         */
1167        public static final String ORIGINAL_ALL_DAY = "originalAllDay";
1168
1169        /**
1170         * The last date this event repeats on, or NULL if it never ends. Column
1171         * name.
1172         * <P>Type: INTEGER (long; millis since epoch)</P>
1173         */
1174        public static final String LAST_DATE = "lastDate";
1175
1176        /**
1177         * Whether the event has attendee information.  True if the event
1178         * has full attendee data, false if the event has information about
1179         * self only. Column name.
1180         * <P>Type: INTEGER (boolean)</P>
1181         */
1182        public static final String HAS_ATTENDEE_DATA = "hasAttendeeData";
1183
1184        /**
1185         * Whether guests can modify the event. Column name.
1186         * <P>Type: INTEGER (boolean)</P>
1187         */
1188        public static final String GUESTS_CAN_MODIFY = "guestsCanModify";
1189
1190        /**
1191         * Whether guests can invite other guests. Column name.
1192         * <P>Type: INTEGER (boolean)</P>
1193         */
1194        public static final String GUESTS_CAN_INVITE_OTHERS = "guestsCanInviteOthers";
1195
1196        /**
1197         * Whether guests can see the list of attendees. Column name.
1198         * <P>Type: INTEGER (boolean)</P>
1199         */
1200        public static final String GUESTS_CAN_SEE_GUESTS = "guestsCanSeeGuests";
1201
1202        /**
1203         * Email of the organizer (owner) of the event. Column name.
1204         * <P>Type: STRING</P>
1205         */
1206        public static final String ORGANIZER = "organizer";
1207
1208        /**
1209         * Whether the user can invite others to the event. The
1210         * GUESTS_CAN_INVITE_OTHERS is a setting that applies to an arbitrary
1211         * guest, while CAN_INVITE_OTHERS indicates if the user can invite
1212         * others (either through GUESTS_CAN_INVITE_OTHERS or because the user
1213         * has modify access to the event). Column name.
1214         * <P>Type: INTEGER (boolean, readonly)</P>
1215         */
1216        public static final String CAN_INVITE_OTHERS = "canInviteOthers";
1217
1218        /**
1219         * The package name of the custom app that can provide a richer
1220         * experience for the event. See the ACTION TYPE
1221         * {@link CalendarContract#ACTION_HANDLE_CUSTOM_EVENT} for details.
1222         * Column name.
1223         * <P> Type: TEXT </P>
1224         */
1225        public static final String CUSTOM_APP_PACKAGE = "customAppPackage";
1226
1227        /**
1228         * The URI used by the custom app for the event. Column name.
1229         * <P>Type: TEXT</P>
1230         */
1231        public static final String CUSTOM_APP_URI = "customAppUri";
1232
1233    }
1234
1235    /**
1236     * Class that represents an Event Entity. There is one entry per event.
1237     * Recurring events show up as a single entry. This is a helper class to
1238     * make batch operations easier. A {@link ContentResolver} or
1239     * {@link ContentProviderClient} is required as the helper does additional
1240     * queries to add reminders and attendees to each entry.
1241     */
1242    public static final class EventsEntity implements BaseColumns, SyncColumns, EventsColumns {
1243        /**
1244         * The content:// style URL for this table
1245         */
1246        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1247                "/event_entities");
1248
1249        /**
1250         * This utility class cannot be instantiated
1251         */
1252        private EventsEntity() {}
1253
1254        /**
1255         * Creates a new iterator for events
1256         *
1257         * @param cursor An event query
1258         * @param resolver For performing additional queries
1259         * @return an EntityIterator containing one entity per event in the
1260         *         cursor
1261         */
1262        public static EntityIterator newEntityIterator(Cursor cursor, ContentResolver resolver) {
1263            return new EntityIteratorImpl(cursor, resolver);
1264        }
1265
1266        /**
1267         * Creates a new iterator for events
1268         *
1269         * @param cursor An event query
1270         * @param provider For performing additional queries
1271         * @return an EntityIterator containing one entity per event in the
1272         *         cursor
1273         */
1274        public static EntityIterator newEntityIterator(Cursor cursor,
1275                ContentProviderClient provider) {
1276            return new EntityIteratorImpl(cursor, provider);
1277        }
1278
1279        private static class EntityIteratorImpl extends CursorEntityIterator {
1280            private final ContentResolver mResolver;
1281            private final ContentProviderClient mProvider;
1282
1283            private static final String[] REMINDERS_PROJECTION = new String[] {
1284                    Reminders.MINUTES,
1285                    Reminders.METHOD,
1286            };
1287            private static final int COLUMN_MINUTES = 0;
1288            private static final int COLUMN_METHOD = 1;
1289
1290            private static final String[] ATTENDEES_PROJECTION = new String[] {
1291                    Attendees.ATTENDEE_NAME,
1292                    Attendees.ATTENDEE_EMAIL,
1293                    Attendees.ATTENDEE_RELATIONSHIP,
1294                    Attendees.ATTENDEE_TYPE,
1295                    Attendees.ATTENDEE_STATUS,
1296                    Attendees.ATTENDEE_IDENTITY,
1297                    Attendees.ATTENDEE_ID_NAMESPACE
1298            };
1299            private static final int COLUMN_ATTENDEE_NAME = 0;
1300            private static final int COLUMN_ATTENDEE_EMAIL = 1;
1301            private static final int COLUMN_ATTENDEE_RELATIONSHIP = 2;
1302            private static final int COLUMN_ATTENDEE_TYPE = 3;
1303            private static final int COLUMN_ATTENDEE_STATUS = 4;
1304            private static final int COLUMN_ATTENDEE_IDENTITY = 5;
1305            private static final int COLUMN_ATTENDEE_ID_NAMESPACE = 6;
1306
1307            private static final String[] EXTENDED_PROJECTION = new String[] {
1308                    ExtendedProperties._ID,
1309                    ExtendedProperties.NAME,
1310                    ExtendedProperties.VALUE
1311            };
1312            private static final int COLUMN_ID = 0;
1313            private static final int COLUMN_NAME = 1;
1314            private static final int COLUMN_VALUE = 2;
1315
1316            private static final String WHERE_EVENT_ID = "event_id=?";
1317
1318            public EntityIteratorImpl(Cursor cursor, ContentResolver resolver) {
1319                super(cursor);
1320                mResolver = resolver;
1321                mProvider = null;
1322            }
1323
1324            public EntityIteratorImpl(Cursor cursor, ContentProviderClient provider) {
1325                super(cursor);
1326                mResolver = null;
1327                mProvider = provider;
1328            }
1329
1330            @Override
1331            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
1332                // we expect the cursor is already at the row we need to read from
1333                final long eventId = cursor.getLong(cursor.getColumnIndexOrThrow(Events._ID));
1334                ContentValues cv = new ContentValues();
1335                cv.put(Events._ID, eventId);
1336                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ID);
1337                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, TITLE);
1338                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DESCRIPTION);
1339                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_LOCATION);
1340                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, STATUS);
1341                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SELF_ATTENDEE_STATUS);
1342                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTSTART);
1343                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTEND);
1344                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DURATION);
1345                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_TIMEZONE);
1346                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_END_TIMEZONE);
1347                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ALL_DAY);
1348                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ACCESS_LEVEL);
1349                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, AVAILABILITY);
1350                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, HAS_ALARM);
1351                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
1352                        HAS_EXTENDED_PROPERTIES);
1353                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RRULE);
1354                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RDATE);
1355                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXRULE);
1356                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXDATE);
1357                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_SYNC_ID);
1358                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_ID);
1359                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv,
1360                        ORIGINAL_INSTANCE_TIME);
1361                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ORIGINAL_ALL_DAY);
1362                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_DATE);
1363                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, HAS_ATTENDEE_DATA);
1364                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
1365                        GUESTS_CAN_INVITE_OTHERS);
1366                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_MODIFY);
1367                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_SEE_GUESTS);
1368                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_PACKAGE);
1369                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_URI);
1370                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORGANIZER);
1371                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
1372                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
1373                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_SYNCED);
1374                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
1375                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA1);
1376                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA2);
1377                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA3);
1378                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA4);
1379                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA5);
1380                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA6);
1381                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA7);
1382                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA8);
1383                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA9);
1384                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA10);
1385                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
1386                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
1387                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
1388                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
1389                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
1390                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
1391                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
1392                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
1393                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
1394                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
1395
1396                Entity entity = new Entity(cv);
1397                Cursor subCursor;
1398                if (mResolver != null) {
1399                    subCursor = mResolver.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1400                            WHERE_EVENT_ID,
1401                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1402                            null /* sortOrder */);
1403                } else {
1404                    subCursor = mProvider.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1405                            WHERE_EVENT_ID,
1406                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1407                            null /* sortOrder */);
1408                }
1409                try {
1410                    while (subCursor.moveToNext()) {
1411                        ContentValues reminderValues = new ContentValues();
1412                        reminderValues.put(Reminders.MINUTES, subCursor.getInt(COLUMN_MINUTES));
1413                        reminderValues.put(Reminders.METHOD, subCursor.getInt(COLUMN_METHOD));
1414                        entity.addSubValue(Reminders.CONTENT_URI, reminderValues);
1415                    }
1416                } finally {
1417                    subCursor.close();
1418                }
1419
1420                if (mResolver != null) {
1421                    subCursor = mResolver.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1422                            WHERE_EVENT_ID,
1423                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1424                            null /* sortOrder */);
1425                } else {
1426                    subCursor = mProvider.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1427                            WHERE_EVENT_ID,
1428                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1429                            null /* sortOrder */);
1430                }
1431                try {
1432                    while (subCursor.moveToNext()) {
1433                        ContentValues attendeeValues = new ContentValues();
1434                        attendeeValues.put(Attendees.ATTENDEE_NAME,
1435                                subCursor.getString(COLUMN_ATTENDEE_NAME));
1436                        attendeeValues.put(Attendees.ATTENDEE_EMAIL,
1437                                subCursor.getString(COLUMN_ATTENDEE_EMAIL));
1438                        attendeeValues.put(Attendees.ATTENDEE_RELATIONSHIP,
1439                                subCursor.getInt(COLUMN_ATTENDEE_RELATIONSHIP));
1440                        attendeeValues.put(Attendees.ATTENDEE_TYPE,
1441                                subCursor.getInt(COLUMN_ATTENDEE_TYPE));
1442                        attendeeValues.put(Attendees.ATTENDEE_STATUS,
1443                                subCursor.getInt(COLUMN_ATTENDEE_STATUS));
1444                        attendeeValues.put(Attendees.ATTENDEE_IDENTITY,
1445                                subCursor.getString(COLUMN_ATTENDEE_IDENTITY));
1446                        attendeeValues.put(Attendees.ATTENDEE_ID_NAMESPACE,
1447                                subCursor.getString(COLUMN_ATTENDEE_ID_NAMESPACE));
1448                        entity.addSubValue(Attendees.CONTENT_URI, attendeeValues);
1449                    }
1450                } finally {
1451                    subCursor.close();
1452                }
1453
1454                if (mResolver != null) {
1455                    subCursor = mResolver.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1456                            WHERE_EVENT_ID,
1457                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1458                            null /* sortOrder */);
1459                } else {
1460                    subCursor = mProvider.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1461                            WHERE_EVENT_ID,
1462                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1463                            null /* sortOrder */);
1464                }
1465                try {
1466                    while (subCursor.moveToNext()) {
1467                        ContentValues extendedValues = new ContentValues();
1468                        extendedValues.put(ExtendedProperties._ID,
1469                                subCursor.getString(COLUMN_ID));
1470                        extendedValues.put(ExtendedProperties.NAME,
1471                                subCursor.getString(COLUMN_NAME));
1472                        extendedValues.put(ExtendedProperties.VALUE,
1473                                subCursor.getString(COLUMN_VALUE));
1474                        entity.addSubValue(ExtendedProperties.CONTENT_URI, extendedValues);
1475                    }
1476                } finally {
1477                    subCursor.close();
1478                }
1479
1480                cursor.moveToNext();
1481                return entity;
1482            }
1483        }
1484    }
1485
1486    /**
1487     * Constants and helpers for the Events table, which contains details for
1488     * individual events. <h3>Operations</h3> All operations can be done either
1489     * as an app or as a sync adapter. To perform an operation as a sync adapter
1490     * {@link #CALLER_IS_SYNCADAPTER} should be set to true and
1491     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
1492     * parameters. See
1493     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
1494     * for details on adding parameters. Sync adapters have write access to more
1495     * columns but are restricted to a single account at a time.
1496     * <dl>
1497     * <dt><b>Insert</b></dt>
1498     * <dd>When inserting a new event the following fields must be included:
1499     * <ul>
1500     * <li>dtstart</li>
1501     * <li>dtend if the event is non-recurring</li>
1502     * <li>duration if the event is recurring</li>
1503     * <li>rrule or rdate if the event is recurring</li>
1504     * <li>eventTimezone</li>
1505     * <li>a calendar_id</li>
1506     * </ul>
1507     * There are also further requirements when inserting or updating an event.
1508     * See the section on Writing to Events.</dd>
1509     * <dt><b>Update</b></dt>
1510     * <dd>To perform an update of an Event the {@link Events#_ID} of the event
1511     * should be provided either as an appended id to the Uri (
1512     * {@link ContentUris#withAppendedId}) or as the first selection item--the
1513     * selection should start with "_id=?" and the first selectionArg should be
1514     * the _id of the event. Updates may also be done using a selection and no
1515     * id. Updating an event must respect the same rules as inserting and is
1516     * further restricted in the fields that can be written. See the section on
1517     * Writing to Events.</dd>
1518     * <dt><b>Delete</b></dt>
1519     * <dd>Events can be deleted either by the {@link Events#_ID} as an appended
1520     * id on the Uri or using any standard selection. If an appended id is used
1521     * a selection is not allowed. There are two versions of delete: as an app
1522     * and as a sync adapter. An app delete will set the deleted column on an
1523     * event and remove all instances of that event. A sync adapter delete will
1524     * remove the event from the database and all associated data.</dd>
1525     * <dt><b>Query</b></dt>
1526     * <dd>Querying the Events table will get you all information about a set of
1527     * events except their reminders, attendees, and extended properties. There
1528     * will be one row returned for each event that matches the query selection,
1529     * or at most a single row if the {@link Events#_ID} is appended to the Uri.
1530     * Recurring events will only return a single row regardless of the number
1531     * of times that event repeats.</dd>
1532     * </dl>
1533     * <h3>Writing to Events</h3> There are further restrictions on all Updates
1534     * and Inserts in the Events table:
1535     * <ul>
1536     * <li>If allDay is set to 1 eventTimezone must be {@link Time#TIMEZONE_UTC}
1537     * and the time must correspond to a midnight boundary.</li>
1538     * <li>Exceptions are not allowed to recur. If rrule or rdate is not empty,
1539     * original_id and original_sync_id must be empty.</li>
1540     * <li>In general a calendar_id should not be modified after insertion. This
1541     * is not explicitly forbidden but many sync adapters will not behave in an
1542     * expected way if the calendar_id is modified.</li>
1543     * </ul>
1544     * The following Events columns are writable by both an app and a sync
1545     * adapter.
1546     * <ul>
1547     * <li>{@link #CALENDAR_ID}</li>
1548     * <li>{@link #ORGANIZER}</li>
1549     * <li>{@link #TITLE}</li>
1550     * <li>{@link #EVENT_LOCATION}</li>
1551     * <li>{@link #DESCRIPTION}</li>
1552     * <li>{@link #EVENT_COLOR}</li>
1553     * <li>{@link #DTSTART}</li>
1554     * <li>{@link #DTEND}</li>
1555     * <li>{@link #EVENT_TIMEZONE}</li>
1556     * <li>{@link #EVENT_END_TIMEZONE}</li>
1557     * <li>{@link #DURATION}</li>
1558     * <li>{@link #ALL_DAY}</li>
1559     * <li>{@link #RRULE}</li>
1560     * <li>{@link #RDATE}</li>
1561     * <li>{@link #EXRULE}</li>
1562     * <li>{@link #EXDATE}</li>
1563     * <li>{@link #ORIGINAL_ID}</li>
1564     * <li>{@link #ORIGINAL_SYNC_ID}</li>
1565     * <li>{@link #ORIGINAL_INSTANCE_TIME}</li>
1566     * <li>{@link #ORIGINAL_ALL_DAY}</li>
1567     * <li>{@link #ACCESS_LEVEL}</li>
1568     * <li>{@link #AVAILABILITY}</li>
1569     * <li>{@link #GUESTS_CAN_MODIFY}</li>
1570     * <li>{@link #GUESTS_CAN_INVITE_OTHERS}</li>
1571     * <li>{@link #GUESTS_CAN_SEE_GUESTS}</li>
1572     * <li>{@link #CUSTOM_APP_PACKAGE}</li>
1573     * <li>{@link #CUSTOM_APP_URI}</li>
1574     * </ul>
1575     * The following Events columns are writable only by a sync adapter
1576     * <ul>
1577     * <li>{@link #DIRTY}</li>
1578     * <li>{@link #_SYNC_ID}</li>
1579     * <li>{@link #SYNC_DATA1}</li>
1580     * <li>{@link #SYNC_DATA2}</li>
1581     * <li>{@link #SYNC_DATA3}</li>
1582     * <li>{@link #SYNC_DATA4}</li>
1583     * <li>{@link #SYNC_DATA5}</li>
1584     * <li>{@link #SYNC_DATA6}</li>
1585     * <li>{@link #SYNC_DATA7}</li>
1586     * <li>{@link #SYNC_DATA8}</li>
1587     * <li>{@link #SYNC_DATA9}</li>
1588     * <li>{@link #SYNC_DATA10}</li>
1589     * </ul>
1590     * The remaining columns are either updated by the provider only or are
1591     * views into other tables and cannot be changed through the Events table.
1592     */
1593    public static final class Events implements BaseColumns, SyncColumns, EventsColumns,
1594            CalendarColumns {
1595
1596        /**
1597         * The content:// style URL for interacting with events. Appending an
1598         * event id using {@link ContentUris#withAppendedId(Uri, long)} will
1599         * specify a single event.
1600         */
1601        @SuppressWarnings("hiding")
1602        public static final Uri CONTENT_URI =
1603                Uri.parse("content://" + AUTHORITY + "/events");
1604
1605        /**
1606         * The content:// style URI for recurring event exceptions.  Insertions require an
1607         * appended event ID.  Deletion of exceptions requires both the original event ID and
1608         * the exception event ID (see {@link Uri.Builder#appendPath}).
1609         */
1610        public static final Uri CONTENT_EXCEPTION_URI =
1611                Uri.parse("content://" + AUTHORITY + "/exception");
1612
1613        /**
1614         * This utility class cannot be instantiated
1615         */
1616        private Events() {}
1617
1618        /**
1619         * The default sort order for this table
1620         */
1621        private static final String DEFAULT_SORT_ORDER = "";
1622
1623        /**
1624         * These are columns that should only ever be updated by the provider,
1625         * either because they are views mapped to another table or because they
1626         * are used for provider only functionality. TODO move to provider
1627         *
1628         * @hide
1629         */
1630        public static String[] PROVIDER_WRITABLE_COLUMNS = new String[] {
1631                ACCOUNT_NAME,
1632                ACCOUNT_TYPE,
1633                CAL_SYNC1,
1634                CAL_SYNC2,
1635                CAL_SYNC3,
1636                CAL_SYNC4,
1637                CAL_SYNC5,
1638                CAL_SYNC6,
1639                CAL_SYNC7,
1640                CAL_SYNC8,
1641                CAL_SYNC9,
1642                CAL_SYNC10,
1643                ALLOWED_REMINDERS,
1644                ALLOWED_ATTENDEE_TYPES,
1645                ALLOWED_AVAILABILITY,
1646                CALENDAR_ACCESS_LEVEL,
1647                CALENDAR_COLOR,
1648                CALENDAR_TIME_ZONE,
1649                CAN_MODIFY_TIME_ZONE,
1650                CAN_ORGANIZER_RESPOND,
1651                CALENDAR_DISPLAY_NAME,
1652                CAN_PARTIALLY_UPDATE,
1653                SYNC_EVENTS,
1654                VISIBLE,
1655        };
1656
1657        /**
1658         * These fields are only writable by a sync adapter. To modify them the
1659         * caller must include CALLER_IS_SYNCADAPTER, _SYNC_ACCOUNT, and
1660         * _SYNC_ACCOUNT_TYPE in the query parameters. TODO move to provider.
1661         *
1662         * @hide
1663         */
1664        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
1665            _SYNC_ID,
1666            DIRTY,
1667            SYNC_DATA1,
1668            SYNC_DATA2,
1669            SYNC_DATA3,
1670            SYNC_DATA4,
1671            SYNC_DATA5,
1672            SYNC_DATA6,
1673            SYNC_DATA7,
1674            SYNC_DATA8,
1675            SYNC_DATA9,
1676            SYNC_DATA10,
1677        };
1678    }
1679
1680    /**
1681     * Fields and helpers for interacting with Instances. An instance is a
1682     * single occurrence of an event including time zone specific start and end
1683     * days and minutes. The instances table is not writable and only provides a
1684     * way to query event occurrences.
1685     */
1686    public static final class Instances implements BaseColumns, EventsColumns, CalendarColumns {
1687
1688        private static final String WHERE_CALENDARS_SELECTED = Calendars.VISIBLE + "=?";
1689        private static final String[] WHERE_CALENDARS_ARGS = {
1690            "1"
1691        };
1692
1693        /**
1694         * This utility class cannot be instantiated
1695         */
1696        private Instances() {}
1697
1698        /**
1699         * Performs a query to return all visible instances in the given range.
1700         * This is a blocking function and should not be done on the UI thread.
1701         * This will cause an expansion of recurring events to fill this time
1702         * range if they are not already expanded and will slow down for larger
1703         * time ranges with many recurring events.
1704         *
1705         * @param cr The ContentResolver to use for the query
1706         * @param projection The columns to return
1707         * @param begin The start of the time range to query in UTC millis since
1708         *            epoch
1709         * @param end The end of the time range to query in UTC millis since
1710         *            epoch
1711         * @return A Cursor containing all instances in the given range
1712         */
1713        public static final Cursor query(ContentResolver cr, String[] projection,
1714                                         long begin, long end) {
1715            Uri.Builder builder = CONTENT_URI.buildUpon();
1716            ContentUris.appendId(builder, begin);
1717            ContentUris.appendId(builder, end);
1718            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1719                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1720        }
1721
1722        /**
1723         * Performs a query to return all visible instances in the given range
1724         * that match the given query. This is a blocking function and should
1725         * not be done on the UI thread. This will cause an expansion of
1726         * recurring events to fill this time range if they are not already
1727         * expanded and will slow down for larger time ranges with many
1728         * recurring events.
1729         *
1730         * @param cr The ContentResolver to use for the query
1731         * @param projection The columns to return
1732         * @param begin The start of the time range to query in UTC millis since
1733         *            epoch
1734         * @param end The end of the time range to query in UTC millis since
1735         *            epoch
1736         * @param searchQuery A string of space separated search terms. Segments
1737         *            enclosed by double quotes will be treated as a single
1738         *            term.
1739         * @return A Cursor of instances matching the search terms in the given
1740         *         time range
1741         */
1742        public static final Cursor query(ContentResolver cr, String[] projection,
1743                                         long begin, long end, String searchQuery) {
1744            Uri.Builder builder = CONTENT_SEARCH_URI.buildUpon();
1745            ContentUris.appendId(builder, begin);
1746            ContentUris.appendId(builder, end);
1747            builder = builder.appendPath(searchQuery);
1748            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1749                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1750        }
1751
1752        /**
1753         * The content:// style URL for querying an instance range. The begin
1754         * and end of the range to query should be added as path segments if
1755         * this is used directly.
1756         */
1757        @SuppressWarnings("hiding")
1758        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1759                "/instances/when");
1760        /**
1761         * The content:// style URL for querying an instance range by Julian
1762         * Day. The start and end day should be added as path segments if this
1763         * is used directly.
1764         */
1765        public static final Uri CONTENT_BY_DAY_URI =
1766            Uri.parse("content://" + AUTHORITY + "/instances/whenbyday");
1767        /**
1768         * The content:// style URL for querying an instance range with a search
1769         * term. The begin, end, and search string should be appended as path
1770         * segments if this is used directly.
1771         */
1772        public static final Uri CONTENT_SEARCH_URI = Uri.parse("content://" + AUTHORITY +
1773                "/instances/search");
1774        /**
1775         * The content:// style URL for querying an instance range with a search
1776         * term. The start day, end day, and search string should be appended as
1777         * path segments if this is used directly.
1778         */
1779        public static final Uri CONTENT_SEARCH_BY_DAY_URI =
1780            Uri.parse("content://" + AUTHORITY + "/instances/searchbyday");
1781
1782        /**
1783         * The default sort order for this table.
1784         */
1785        private static final String DEFAULT_SORT_ORDER = "begin ASC";
1786
1787        /**
1788         * The beginning time of the instance, in UTC milliseconds. Column name.
1789         * <P>Type: INTEGER (long; millis since epoch)</P>
1790         */
1791        public static final String BEGIN = "begin";
1792
1793        /**
1794         * The ending time of the instance, in UTC milliseconds. Column name.
1795         * <P>Type: INTEGER (long; millis since epoch)</P>
1796         */
1797        public static final String END = "end";
1798
1799        /**
1800         * The _id of the event for this instance. Column name.
1801         * <P>Type: INTEGER (long, foreign key to the Events table)</P>
1802         */
1803        public static final String EVENT_ID = "event_id";
1804
1805        /**
1806         * The Julian start day of the instance, relative to the local time
1807         * zone. Column name.
1808         * <P>Type: INTEGER (int)</P>
1809         */
1810        public static final String START_DAY = "startDay";
1811
1812        /**
1813         * The Julian end day of the instance, relative to the local time
1814         * zone. Column name.
1815         * <P>Type: INTEGER (int)</P>
1816         */
1817        public static final String END_DAY = "endDay";
1818
1819        /**
1820         * The start minute of the instance measured from midnight in the
1821         * local time zone. Column name.
1822         * <P>Type: INTEGER (int)</P>
1823         */
1824        public static final String START_MINUTE = "startMinute";
1825
1826        /**
1827         * The end minute of the instance measured from midnight in the
1828         * local time zone. Column name.
1829         * <P>Type: INTEGER (int)</P>
1830         */
1831        public static final String END_MINUTE = "endMinute";
1832    }
1833
1834    protected interface CalendarCacheColumns {
1835        /**
1836         * The key for the setting. Keys are defined in {@link CalendarCache}.
1837         */
1838        public static final String KEY = "key";
1839
1840        /**
1841         * The value of the given setting.
1842         */
1843        public static final String VALUE = "value";
1844    }
1845
1846    /**
1847     * CalendarCache stores some settings for calendar including the current
1848     * time zone for the instances. These settings are stored using a key/value
1849     * scheme. A {@link #KEY} must be specified when updating these values.
1850     */
1851    public static final class CalendarCache implements CalendarCacheColumns {
1852        /**
1853         * The URI to use for retrieving the properties from the Calendar db.
1854         */
1855        public static final Uri URI =
1856                Uri.parse("content://" + AUTHORITY + "/properties");
1857
1858        /**
1859         * This utility class cannot be instantiated
1860         */
1861        private CalendarCache() {}
1862
1863        /**
1864         * They key for updating the use of auto/home time zones in Calendar.
1865         * Valid values are {@link #TIMEZONE_TYPE_AUTO} or
1866         * {@link #TIMEZONE_TYPE_HOME}.
1867         */
1868        public static final String KEY_TIMEZONE_TYPE = "timezoneType";
1869
1870        /**
1871         * The key for updating the time zone used by the provider when it
1872         * generates the instances table. This should only be written if the
1873         * type is set to {@link #TIMEZONE_TYPE_HOME}. A valid time zone id
1874         * should be written to this field.
1875         */
1876        public static final String KEY_TIMEZONE_INSTANCES = "timezoneInstances";
1877
1878        /**
1879         * The key for reading the last time zone set by the user. This should
1880         * only be read by apps and it will be automatically updated whenever
1881         * {@link #KEY_TIMEZONE_INSTANCES} is updated with
1882         * {@link #TIMEZONE_TYPE_HOME} set.
1883         */
1884        public static final String KEY_TIMEZONE_INSTANCES_PREVIOUS = "timezoneInstancesPrevious";
1885
1886        /**
1887         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1888         * should stay in sync with the device's time zone.
1889         */
1890        public static final String TIMEZONE_TYPE_AUTO = "auto";
1891
1892        /**
1893         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1894         * should use a fixed time zone set by the user.
1895         */
1896        public static final String TIMEZONE_TYPE_HOME = "home";
1897    }
1898
1899    /**
1900     * A few Calendar globals are needed in the CalendarProvider for expanding
1901     * the Instances table and these are all stored in the first (and only) row
1902     * of the CalendarMetaData table.
1903     *
1904     * @hide
1905     */
1906    protected interface CalendarMetaDataColumns {
1907        /**
1908         * The local timezone that was used for precomputing the fields
1909         * in the Instances table.
1910         */
1911        public static final String LOCAL_TIMEZONE = "localTimezone";
1912
1913        /**
1914         * The minimum time used in expanding the Instances table,
1915         * in UTC milliseconds.
1916         * <P>Type: INTEGER</P>
1917         */
1918        public static final String MIN_INSTANCE = "minInstance";
1919
1920        /**
1921         * The maximum time used in expanding the Instances table,
1922         * in UTC milliseconds.
1923         * <P>Type: INTEGER</P>
1924         */
1925        public static final String MAX_INSTANCE = "maxInstance";
1926
1927        /**
1928         * The minimum Julian day in the EventDays table.
1929         * <P>Type: INTEGER</P>
1930         */
1931        public static final String MIN_EVENTDAYS = "minEventDays";
1932
1933        /**
1934         * The maximum Julian day in the EventDays table.
1935         * <P>Type: INTEGER</P>
1936         */
1937        public static final String MAX_EVENTDAYS = "maxEventDays";
1938    }
1939
1940    /**
1941     * @hide
1942     */
1943    public static final class CalendarMetaData implements CalendarMetaDataColumns, BaseColumns {
1944
1945        /**
1946         * This utility class cannot be instantiated
1947         */
1948        private CalendarMetaData() {}
1949    }
1950
1951    protected interface EventDaysColumns {
1952        /**
1953         * The Julian starting day number. Column name.
1954         * <P>Type: INTEGER (int)</P>
1955         */
1956        public static final String STARTDAY = "startDay";
1957        /**
1958         * The Julian ending day number. Column name.
1959         * <P>Type: INTEGER (int)</P>
1960         */
1961        public static final String ENDDAY = "endDay";
1962
1963    }
1964
1965    /**
1966     * Fields and helpers for querying for a list of days that contain events.
1967     */
1968    public static final class EventDays implements EventDaysColumns {
1969        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
1970                + "/instances/groupbyday");
1971        private static final String SELECTION = "selected=1";
1972
1973        /**
1974         * This utility class cannot be instantiated
1975         */
1976        private EventDays() {}
1977
1978        /**
1979         * Retrieves the days with events for the Julian days starting at
1980         * "startDay" for "numDays". It returns a cursor containing startday and
1981         * endday representing the max range of days for all events beginning on
1982         * each startday.This is a blocking function and should not be done on
1983         * the UI thread.
1984         *
1985         * @param cr the ContentResolver
1986         * @param startDay the first Julian day in the range
1987         * @param numDays the number of days to load (must be at least 1)
1988         * @param projection the columns to return in the cursor
1989         * @return a database cursor containing a list of start and end days for
1990         *         events
1991         */
1992        public static final Cursor query(ContentResolver cr, int startDay, int numDays,
1993                String[] projection) {
1994            if (numDays < 1) {
1995                return null;
1996            }
1997            int endDay = startDay + numDays - 1;
1998            Uri.Builder builder = CONTENT_URI.buildUpon();
1999            ContentUris.appendId(builder, startDay);
2000            ContentUris.appendId(builder, endDay);
2001            return cr.query(builder.build(), projection, SELECTION,
2002                    null /* selection args */, STARTDAY);
2003        }
2004    }
2005
2006    protected interface RemindersColumns {
2007        /**
2008         * The event the reminder belongs to. Column name.
2009         * <P>Type: INTEGER (foreign key to the Events table)</P>
2010         */
2011        public static final String EVENT_ID = "event_id";
2012
2013        /**
2014         * The minutes prior to the event that the alarm should ring.  -1
2015         * specifies that we should use the default value for the system.
2016         * Column name.
2017         * <P>Type: INTEGER</P>
2018         */
2019        public static final String MINUTES = "minutes";
2020
2021        /**
2022         * Passing this as a minutes value will use the default reminder
2023         * minutes.
2024         */
2025        public static final int MINUTES_DEFAULT = -1;
2026
2027        /**
2028         * The alarm method, as set on the server. {@link #METHOD_DEFAULT},
2029         * {@link #METHOD_ALERT}, {@link #METHOD_EMAIL}, {@link #METHOD_SMS} and
2030         * {@link #METHOD_ALARM} are possible values; the device will only
2031         * process {@link #METHOD_DEFAULT} and {@link #METHOD_ALERT} reminders
2032         * (the other types are simply stored so we can send the same reminder
2033         * info back to the server when we make changes).
2034         */
2035        public static final String METHOD = "method";
2036
2037        public static final int METHOD_DEFAULT = 0;
2038        public static final int METHOD_ALERT = 1;
2039        public static final int METHOD_EMAIL = 2;
2040        public static final int METHOD_SMS = 3;
2041        public static final int METHOD_ALARM = 4;
2042    }
2043
2044    /**
2045     * Fields and helpers for accessing reminders for an event. Each row of this
2046     * table represents a single reminder for an event. Calling
2047     * {@link #query(ContentResolver, long, String[])} will return a list of reminders for
2048     * the event with the given eventId. Both apps and sync adapters may write
2049     * to this table. There are three writable fields and all of them must be
2050     * included when inserting a new reminder. They are:
2051     * <ul>
2052     * <li>{@link #EVENT_ID}</li>
2053     * <li>{@link #MINUTES}</li>
2054     * <li>{@link #METHOD}</li>
2055     * </ul>
2056     */
2057    public static final class Reminders implements BaseColumns, RemindersColumns, EventsColumns {
2058        private static final String REMINDERS_WHERE = CalendarContract.Reminders.EVENT_ID + "=?";
2059        @SuppressWarnings("hiding")
2060        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/reminders");
2061
2062        /**
2063         * This utility class cannot be instantiated
2064         */
2065        private Reminders() {}
2066
2067        /**
2068         * Queries all reminders associated with the given event. This is a
2069         * blocking call and should not be done on the UI thread.
2070         *
2071         * @param cr The content resolver to use for the query
2072         * @param eventId The id of the event to retrieve reminders for
2073         * @param projection the columns to return in the cursor
2074         * @return A Cursor containing all reminders for the event
2075         */
2076        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
2077            String[] remArgs = {Long.toString(eventId)};
2078            return cr.query(CONTENT_URI, projection, REMINDERS_WHERE, remArgs /*selection args*/,
2079                    null /* sort order */);
2080        }
2081    }
2082
2083    protected interface CalendarAlertsColumns {
2084        /**
2085         * The event that the alert belongs to. Column name.
2086         * <P>Type: INTEGER (foreign key to the Events table)</P>
2087         */
2088        public static final String EVENT_ID = "event_id";
2089
2090        /**
2091         * The start time of the event, in UTC. Column name.
2092         * <P>Type: INTEGER (long; millis since epoch)</P>
2093         */
2094        public static final String BEGIN = "begin";
2095
2096        /**
2097         * The end time of the event, in UTC. Column name.
2098         * <P>Type: INTEGER (long; millis since epoch)</P>
2099         */
2100        public static final String END = "end";
2101
2102        /**
2103         * The alarm time of the event, in UTC. Column name.
2104         * <P>Type: INTEGER (long; millis since epoch)</P>
2105         */
2106        public static final String ALARM_TIME = "alarmTime";
2107
2108        /**
2109         * The creation time of this database entry, in UTC.
2110         * Useful for debugging missed reminders. Column name.
2111         * <P>Type: INTEGER (long; millis since epoch)</P>
2112         */
2113        public static final String CREATION_TIME = "creationTime";
2114
2115        /**
2116         * The time that the alarm broadcast was received by the Calendar app,
2117         * in UTC. Useful for debugging missed reminders. Column name.
2118         * <P>Type: INTEGER (long; millis since epoch)</P>
2119         */
2120        public static final String RECEIVED_TIME = "receivedTime";
2121
2122        /**
2123         * The time that the notification was created by the Calendar app,
2124         * in UTC. Useful for debugging missed reminders. Column name.
2125         * <P>Type: INTEGER (long; millis since epoch)</P>
2126         */
2127        public static final String NOTIFY_TIME = "notifyTime";
2128
2129        /**
2130         * The state of this alert. It starts out as {@link #STATE_SCHEDULED}, then
2131         * when the alarm goes off, it changes to {@link #STATE_FIRED}, and then when
2132         * the user dismisses the alarm it changes to {@link #STATE_DISMISSED}. Column
2133         * name.
2134         * <P>Type: INTEGER</P>
2135         */
2136        public static final String STATE = "state";
2137
2138        /**
2139         * An alert begins in this state when it is first created.
2140         */
2141        public static final int STATE_SCHEDULED = 0;
2142        /**
2143         * After a notification for an alert has been created it should be
2144         * updated to fired.
2145         */
2146        public static final int STATE_FIRED = 1;
2147        /**
2148         * Once the user has dismissed the notification the alert's state should
2149         * be set to dismissed so it is not fired again.
2150         */
2151        public static final int STATE_DISMISSED = 2;
2152
2153        /**
2154         * The number of minutes that this alarm precedes the start time. Column
2155         * name.
2156         * <P>Type: INTEGER</P>
2157         */
2158        public static final String MINUTES = "minutes";
2159
2160        /**
2161         * The default sort order for this alerts queries
2162         */
2163        public static final String DEFAULT_SORT_ORDER = "begin ASC,title ASC";
2164    }
2165
2166    /**
2167     * Fields and helpers for accessing calendar alerts information. These
2168     * fields are for tracking which alerts have been fired. Scheduled alarms
2169     * will generate an intent using {@link #ACTION_EVENT_REMINDER}. Apps that
2170     * receive this action may update the {@link #STATE} for the reminder when
2171     * they have finished handling it. Apps that have their notifications
2172     * disabled should not modify the table to ensure that they do not conflict
2173     * with another app that is generating a notification. In general, apps
2174     * should not need to write to this table directly except to update the
2175     * state of a reminder.
2176     */
2177    public static final class CalendarAlerts implements BaseColumns,
2178            CalendarAlertsColumns, EventsColumns, CalendarColumns {
2179
2180        /**
2181         * @hide
2182         */
2183        public static final String TABLE_NAME = "CalendarAlerts";
2184        /**
2185         * The Uri for querying calendar alert information
2186         */
2187        @SuppressWarnings("hiding")
2188        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
2189                "/calendar_alerts");
2190
2191        /**
2192         * This utility class cannot be instantiated
2193         */
2194        private CalendarAlerts() {}
2195
2196        private static final String WHERE_ALARM_EXISTS = EVENT_ID + "=?"
2197                + " AND " + BEGIN + "=?"
2198                + " AND " + ALARM_TIME + "=?";
2199
2200        private static final String WHERE_FINDNEXTALARMTIME = ALARM_TIME + ">=?";
2201        private static final String SORT_ORDER_ALARMTIME_ASC = ALARM_TIME + " ASC";
2202
2203        private static final String WHERE_RESCHEDULE_MISSED_ALARMS = STATE + "=" + STATE_SCHEDULED
2204                + " AND " + ALARM_TIME + "<?"
2205                + " AND " + ALARM_TIME + ">?"
2206                + " AND " + END + ">=?";
2207
2208        /**
2209         * This URI is for grouping the query results by event_id and begin
2210         * time.  This will return one result per instance of an event.  So
2211         * events with multiple alarms will appear just once, but multiple
2212         * instances of a repeating event will show up multiple times.
2213         */
2214        public static final Uri CONTENT_URI_BY_INSTANCE =
2215            Uri.parse("content://" + AUTHORITY + "/calendar_alerts/by_instance");
2216
2217        private static final boolean DEBUG = false;
2218
2219        /**
2220         * Helper for inserting an alarm time associated with an event TODO move
2221         * to Provider
2222         *
2223         * @hide
2224         */
2225        public static final Uri insert(ContentResolver cr, long eventId,
2226                long begin, long end, long alarmTime, int minutes) {
2227            ContentValues values = new ContentValues();
2228            values.put(CalendarAlerts.EVENT_ID, eventId);
2229            values.put(CalendarAlerts.BEGIN, begin);
2230            values.put(CalendarAlerts.END, end);
2231            values.put(CalendarAlerts.ALARM_TIME, alarmTime);
2232            long currentTime = System.currentTimeMillis();
2233            values.put(CalendarAlerts.CREATION_TIME, currentTime);
2234            values.put(CalendarAlerts.RECEIVED_TIME, 0);
2235            values.put(CalendarAlerts.NOTIFY_TIME, 0);
2236            values.put(CalendarAlerts.STATE, STATE_SCHEDULED);
2237            values.put(CalendarAlerts.MINUTES, minutes);
2238            return cr.insert(CONTENT_URI, values);
2239        }
2240
2241        /**
2242         * Finds the next alarm after (or equal to) the given time and returns
2243         * the time of that alarm or -1 if no such alarm exists. This is a
2244         * blocking call and should not be done on the UI thread. TODO move to
2245         * provider
2246         *
2247         * @param cr the ContentResolver
2248         * @param millis the time in UTC milliseconds
2249         * @return the next alarm time greater than or equal to "millis", or -1
2250         *         if no such alarm exists.
2251         * @hide
2252         */
2253        public static final long findNextAlarmTime(ContentResolver cr, long millis) {
2254            String selection = ALARM_TIME + ">=" + millis;
2255            // TODO: construct an explicit SQL query so that we can add
2256            // "LIMIT 1" to the end and get just one result.
2257            String[] projection = new String[] { ALARM_TIME };
2258            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_FINDNEXTALARMTIME,
2259                    (new String[] {
2260                        Long.toString(millis)
2261                    }), SORT_ORDER_ALARMTIME_ASC);
2262            long alarmTime = -1;
2263            try {
2264                if (cursor != null && cursor.moveToFirst()) {
2265                    alarmTime = cursor.getLong(0);
2266                }
2267            } finally {
2268                if (cursor != null) {
2269                    cursor.close();
2270                }
2271            }
2272            return alarmTime;
2273        }
2274
2275        /**
2276         * Searches the CalendarAlerts table for alarms that should have fired
2277         * but have not and then reschedules them. This method can be called at
2278         * boot time to restore alarms that may have been lost due to a phone
2279         * reboot. TODO move to provider
2280         *
2281         * @param cr the ContentResolver
2282         * @param context the Context
2283         * @param manager the AlarmManager
2284         * @hide
2285         */
2286        public static final void rescheduleMissedAlarms(ContentResolver cr,
2287                Context context, AlarmManager manager) {
2288            // Get all the alerts that have been scheduled but have not fired
2289            // and should have fired by now and are not too old.
2290            long now = System.currentTimeMillis();
2291            long ancient = now - DateUtils.DAY_IN_MILLIS;
2292            String[] projection = new String[] {
2293                    ALARM_TIME,
2294            };
2295
2296            // TODO: construct an explicit SQL query so that we can add
2297            // "GROUPBY" instead of doing a sort and de-dup
2298            Cursor cursor = cr.query(CalendarAlerts.CONTENT_URI, projection,
2299                    WHERE_RESCHEDULE_MISSED_ALARMS, (new String[] {
2300                            Long.toString(now), Long.toString(ancient), Long.toString(now)
2301                    }), SORT_ORDER_ALARMTIME_ASC);
2302            if (cursor == null) {
2303                return;
2304            }
2305
2306            if (DEBUG) {
2307                Log.d(TAG, "missed alarms found: " + cursor.getCount());
2308            }
2309
2310            try {
2311                long alarmTime = -1;
2312
2313                while (cursor.moveToNext()) {
2314                    long newAlarmTime = cursor.getLong(0);
2315                    if (alarmTime != newAlarmTime) {
2316                        if (DEBUG) {
2317                            Log.w(TAG, "rescheduling missed alarm. alarmTime: " + newAlarmTime);
2318                        }
2319                        scheduleAlarm(context, manager, newAlarmTime);
2320                        alarmTime = newAlarmTime;
2321                    }
2322                }
2323            } finally {
2324                cursor.close();
2325            }
2326        }
2327
2328        /**
2329         * Schedules an alarm intent with the system AlarmManager that will
2330         * notify listeners when a reminder should be fired. The provider will
2331         * keep scheduled reminders up to date but apps may use this to
2332         * implement snooze functionality without modifying the reminders table.
2333         * Scheduled alarms will generate an intent using
2334         * {@link #ACTION_EVENT_REMINDER}. TODO Move to provider
2335         *
2336         * @param context A context for referencing system resources
2337         * @param manager The AlarmManager to use or null
2338         * @param alarmTime The time to fire the intent in UTC millis since
2339         *            epoch
2340         * @hide
2341         */
2342        public static void scheduleAlarm(Context context, AlarmManager manager, long alarmTime) {
2343            if (DEBUG) {
2344                Time time = new Time();
2345                time.set(alarmTime);
2346                String schedTime = time.format(" %a, %b %d, %Y %I:%M%P");
2347                Log.d(TAG, "Schedule alarm at " + alarmTime + " " + schedTime);
2348            }
2349
2350            if (manager == null) {
2351                manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
2352            }
2353
2354            Intent intent = new Intent(ACTION_EVENT_REMINDER);
2355            intent.setData(ContentUris.withAppendedId(CalendarContract.CONTENT_URI, alarmTime));
2356            intent.putExtra(ALARM_TIME, alarmTime);
2357            PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
2358            manager.set(AlarmManager.RTC_WAKEUP, alarmTime, pi);
2359        }
2360
2361        /**
2362         * Searches for an entry in the CalendarAlerts table that matches the
2363         * given event id, begin time and alarm time. If one is found then this
2364         * alarm already exists and this method returns true. TODO Move to
2365         * provider
2366         *
2367         * @param cr the ContentResolver
2368         * @param eventId the event id to match
2369         * @param begin the start time of the event in UTC millis
2370         * @param alarmTime the alarm time of the event in UTC millis
2371         * @return true if there is already an alarm for the given event with
2372         *         the same start time and alarm time.
2373         * @hide
2374         */
2375        public static final boolean alarmExists(ContentResolver cr, long eventId,
2376                long begin, long alarmTime) {
2377            // TODO: construct an explicit SQL query so that we can add
2378            // "LIMIT 1" to the end and get just one result.
2379            String[] projection = new String[] { ALARM_TIME };
2380            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_ALARM_EXISTS,
2381                    (new String[] {
2382                            Long.toString(eventId), Long.toString(begin), Long.toString(alarmTime)
2383                    }), null);
2384            boolean found = false;
2385            try {
2386                if (cursor != null && cursor.getCount() > 0) {
2387                    found = true;
2388                }
2389            } finally {
2390                if (cursor != null) {
2391                    cursor.close();
2392                }
2393            }
2394            return found;
2395        }
2396    }
2397
2398    protected interface ColorsColumns extends SyncStateContract.Columns {
2399
2400        /**
2401         * The type of color, which describes how it should be used. Valid types
2402         * are {@link #TYPE_CALENDAR} and {@link #TYPE_EVENT}. Column name.
2403         * <P>
2404         * Type: INTEGER (NOT NULL)
2405         * </P>
2406         */
2407        public static final String COLOR_TYPE = "color_type";
2408
2409        /**
2410         * This indicateds a color that can be used for calendars.
2411         */
2412        public static final int TYPE_CALENDAR = 0;
2413        /**
2414         * This indicates a color that can be used for events.
2415         */
2416        public static final int TYPE_EVENT = 1;
2417
2418        /**
2419         * The key used to reference this color. This can be any non-empty
2420         * string, but must be unique for a given {@link #ACCOUNT_TYPE} and
2421         * {@link #ACCOUNT_NAME}. Column name.
2422         * <P>
2423         * Type: TEXT
2424         * </P>
2425         */
2426        public static final String COLOR_KEY = "color_index";
2427
2428        /**
2429         * The color as an 8-bit ARGB integer value. Colors should specify alpha
2430         * as fully opaque (eg 0xFF993322) as the alpha may be ignored or
2431         * modified for display. It is reccomended that colors be usable with
2432         * light (near white) text. Apps should not depend on that assumption,
2433         * however. Column name.
2434         * <P>
2435         * Type: INTEGER (NOT NULL)
2436         * </P>
2437         */
2438        public static final String COLOR = "color";
2439
2440    }
2441
2442    /**
2443     * Fields for accessing colors available for a given account. Colors are
2444     * referenced by {@link #COLOR_KEY} which must be unique for a given
2445     * account name/type. These values can only be updated by the sync
2446     * adapter. Only {@link #COLOR} may be updated after the initial insert. In
2447     * addition, a row can only be deleted once all references to that color
2448     * have been removed from the {@link Calendars} or {@link Events} tables.
2449     */
2450    public static final class Colors implements ColorsColumns {
2451        /**
2452         * @hide
2453         */
2454        public static final String TABLE_NAME = "Colors";
2455        /**
2456         * The Uri for querying color information
2457         */
2458        @SuppressWarnings("hiding")
2459        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/colors");
2460
2461        /**
2462         * This utility class cannot be instantiated
2463         */
2464        private Colors() {
2465        }
2466    }
2467
2468    protected interface ExtendedPropertiesColumns {
2469        /**
2470         * The event the extended property belongs to. Column name.
2471         * <P>Type: INTEGER (foreign key to the Events table)</P>
2472         */
2473        public static final String EVENT_ID = "event_id";
2474
2475        /**
2476         * The name of the extended property.  This is a uri of the form
2477         * {scheme}#{local-name} convention. Column name.
2478         * <P>Type: TEXT</P>
2479         */
2480        public static final String NAME = "name";
2481
2482        /**
2483         * The value of the extended property. Column name.
2484         * <P>Type: TEXT</P>
2485         */
2486        public static final String VALUE = "value";
2487    }
2488
2489    /**
2490     * Fields for accessing the Extended Properties. This is a generic set of
2491     * name/value pairs for use by sync adapters to add extra
2492     * information to events. There are three writable columns and all three
2493     * must be present when inserting a new value. They are:
2494     * <ul>
2495     * <li>{@link #EVENT_ID}</li>
2496     * <li>{@link #NAME}</li>
2497     * <li>{@link #VALUE}</li>
2498     * </ul>
2499     */
2500   public static final class ExtendedProperties implements BaseColumns,
2501            ExtendedPropertiesColumns, EventsColumns {
2502        public static final Uri CONTENT_URI =
2503                Uri.parse("content://" + AUTHORITY + "/extendedproperties");
2504
2505        /**
2506         * This utility class cannot be instantiated
2507         */
2508        private ExtendedProperties() {}
2509
2510        // TODO: fill out this class when we actually start utilizing extendedproperties
2511        // in the calendar application.
2512   }
2513
2514    /**
2515     * A table provided for sync adapters to use for storing private sync state data.
2516     *
2517     * @see SyncStateContract
2518     */
2519    public static final class SyncState implements SyncStateContract.Columns {
2520        /**
2521         * This utility class cannot be instantiated
2522         */
2523        private SyncState() {}
2524
2525        private static final String CONTENT_DIRECTORY =
2526                SyncStateContract.Constants.CONTENT_DIRECTORY;
2527
2528        /**
2529         * The content:// style URI for this table
2530         */
2531        public static final Uri CONTENT_URI =
2532                Uri.withAppendedPath(CalendarContract.CONTENT_URI, CONTENT_DIRECTORY);
2533    }
2534
2535    /**
2536     * Columns from the EventsRawTimes table
2537     *
2538     * @hide
2539     */
2540    protected interface EventsRawTimesColumns {
2541        /**
2542         * The corresponding event id. Column name.
2543         * <P>Type: INTEGER (long)</P>
2544         */
2545        public static final String EVENT_ID = "event_id";
2546
2547        /**
2548         * The RFC2445 compliant time the event starts. Column name.
2549         * <P>Type: TEXT</P>
2550         */
2551        public static final String DTSTART_2445 = "dtstart2445";
2552
2553        /**
2554         * The RFC2445 compliant time the event ends. Column name.
2555         * <P>Type: TEXT</P>
2556         */
2557        public static final String DTEND_2445 = "dtend2445";
2558
2559        /**
2560         * The RFC2445 compliant original instance time of the recurring event
2561         * for which this event is an exception. Column name.
2562         * <P>Type: TEXT</P>
2563         */
2564        public static final String ORIGINAL_INSTANCE_TIME_2445 = "originalInstanceTime2445";
2565
2566        /**
2567         * The RFC2445 compliant last date this event repeats on, or NULL if it
2568         * never ends. Column name.
2569         * <P>Type: TEXT</P>
2570         */
2571        public static final String LAST_DATE_2445 = "lastDate2445";
2572    }
2573
2574    /**
2575     * @hide
2576     */
2577    public static final class EventsRawTimes implements BaseColumns, EventsRawTimesColumns {
2578
2579        /**
2580         * This utility class cannot be instantiated
2581         */
2582        private EventsRawTimes() {}
2583    }
2584}
2585