Downloads.java revision 58d9fb6220ea2070b0af5db3031e9cdaead6e36d
1/* 2 * Copyright (C) 2008 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 19import android.app.DownloadManager; 20import android.content.Context; 21import android.net.NetworkPolicyManager; 22import android.net.Uri; 23 24/** 25 * The Download Manager 26 * 27 * @pending 28 */ 29public final class Downloads { 30 private Downloads() {} 31 32 /** 33 * Implementation details 34 * 35 * Exposes constants used to interact with the download manager's 36 * content provider. 37 * The constants URI ... STATUS are the names of columns in the downloads table. 38 * 39 * @hide 40 */ 41 public static final class Impl implements BaseColumns { 42 private Impl() {} 43 44 /** 45 * The permission to access the download manager 46 */ 47 public static final String PERMISSION_ACCESS = "android.permission.ACCESS_DOWNLOAD_MANAGER"; 48 49 /** 50 * The permission to access the download manager's advanced functions 51 */ 52 public static final String PERMISSION_ACCESS_ADVANCED = 53 "android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED"; 54 55 /** 56 * The permission to access the all the downloads in the manager. 57 */ 58 public static final String PERMISSION_ACCESS_ALL = 59 "android.permission.ACCESS_ALL_DOWNLOADS"; 60 61 /** 62 * The permission to directly access the download manager's cache 63 * directory 64 */ 65 public static final String PERMISSION_CACHE = "android.permission.ACCESS_CACHE_FILESYSTEM"; 66 67 /** 68 * The permission to send broadcasts on download completion 69 */ 70 public static final String PERMISSION_SEND_INTENTS = 71 "android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS"; 72 73 /** 74 * The permission to download files to the cache partition that won't be automatically 75 * purged when space is needed. 76 */ 77 public static final String PERMISSION_CACHE_NON_PURGEABLE = 78 "android.permission.DOWNLOAD_CACHE_NON_PURGEABLE"; 79 80 /** 81 * The permission to download files without any system notification being shown. 82 */ 83 public static final String PERMISSION_NO_NOTIFICATION = 84 "android.permission.DOWNLOAD_WITHOUT_NOTIFICATION"; 85 86 /** 87 * The content:// URI to access downloads owned by the caller's UID. 88 */ 89 public static final Uri CONTENT_URI = 90 Uri.parse("content://downloads/my_downloads"); 91 92 /** 93 * The content URI for accessing all downloads across all UIDs (requires the 94 * ACCESS_ALL_DOWNLOADS permission). 95 */ 96 public static final Uri ALL_DOWNLOADS_CONTENT_URI = 97 Uri.parse("content://downloads/all_downloads"); 98 99 /** URI segment to access a publicly accessible downloaded file */ 100 public static final String PUBLICLY_ACCESSIBLE_DOWNLOADS_URI_SEGMENT = "public_downloads"; 101 102 /** 103 * The content URI for accessing publicly accessible downloads (i.e., it requires no 104 * permissions to access this downloaded file) 105 */ 106 public static final Uri PUBLICLY_ACCESSIBLE_DOWNLOADS_URI = 107 Uri.parse("content://downloads/" + PUBLICLY_ACCESSIBLE_DOWNLOADS_URI_SEGMENT); 108 109 /** 110 * Broadcast Action: this is sent by the download manager to the app 111 * that had initiated a download when that download completes. The 112 * download's content: uri is specified in the intent's data. 113 */ 114 public static final String ACTION_DOWNLOAD_COMPLETED = 115 "android.intent.action.DOWNLOAD_COMPLETED"; 116 117 /** 118 * Broadcast Action: this is sent by the download manager to the app 119 * that had initiated a download when the user selects the notification 120 * associated with that download. The download's content: uri is specified 121 * in the intent's data if the click is associated with a single download, 122 * or Downloads.CONTENT_URI if the notification is associated with 123 * multiple downloads. 124 * Note: this is not currently sent for downloads that have completed 125 * successfully. 126 */ 127 public static final String ACTION_NOTIFICATION_CLICKED = 128 "android.intent.action.DOWNLOAD_NOTIFICATION_CLICKED"; 129 130 /** 131 * The name of the column containing the URI of the data being downloaded. 132 * <P>Type: TEXT</P> 133 * <P>Owner can Init/Read</P> 134 */ 135 public static final String COLUMN_URI = "uri"; 136 137 /** 138 * The name of the column containing application-specific data. 139 * <P>Type: TEXT</P> 140 * <P>Owner can Init/Read/Write</P> 141 */ 142 public static final String COLUMN_APP_DATA = "entity"; 143 144 /** 145 * The name of the column containing the flags that indicates whether 146 * the initiating application is capable of verifying the integrity of 147 * the downloaded file. When this flag is set, the download manager 148 * performs downloads and reports success even in some situations where 149 * it can't guarantee that the download has completed (e.g. when doing 150 * a byte-range request without an ETag, or when it can't determine 151 * whether a download fully completed). 152 * <P>Type: BOOLEAN</P> 153 * <P>Owner can Init</P> 154 */ 155 public static final String COLUMN_NO_INTEGRITY = "no_integrity"; 156 157 /** 158 * The name of the column containing the filename that the initiating 159 * application recommends. When possible, the download manager will attempt 160 * to use this filename, or a variation, as the actual name for the file. 161 * <P>Type: TEXT</P> 162 * <P>Owner can Init</P> 163 */ 164 public static final String COLUMN_FILE_NAME_HINT = "hint"; 165 166 /** 167 * The name of the column containing the filename where the downloaded data 168 * was actually stored. 169 * <P>Type: TEXT</P> 170 * <P>Owner can Read</P> 171 */ 172 public static final String _DATA = "_data"; 173 174 /** 175 * The name of the column containing the MIME type of the downloaded data. 176 * <P>Type: TEXT</P> 177 * <P>Owner can Init/Read</P> 178 */ 179 public static final String COLUMN_MIME_TYPE = "mimetype"; 180 181 /** 182 * The name of the column containing the flag that controls the destination 183 * of the download. See the DESTINATION_* constants for a list of legal values. 184 * <P>Type: INTEGER</P> 185 * <P>Owner can Init</P> 186 */ 187 public static final String COLUMN_DESTINATION = "destination"; 188 189 /** 190 * The name of the column containing the flags that controls whether the 191 * download is displayed by the UI. See the VISIBILITY_* constants for 192 * a list of legal values. 193 * <P>Type: INTEGER</P> 194 * <P>Owner can Init/Read/Write</P> 195 */ 196 public static final String COLUMN_VISIBILITY = "visibility"; 197 198 /** 199 * The name of the column containing the current control state of the download. 200 * Applications can write to this to control (pause/resume) the download. 201 * the CONTROL_* constants for a list of legal values. 202 * <P>Type: INTEGER</P> 203 * <P>Owner can Read</P> 204 */ 205 public static final String COLUMN_CONTROL = "control"; 206 207 /** 208 * The name of the column containing the current status of the download. 209 * Applications can read this to follow the progress of each download. See 210 * the STATUS_* constants for a list of legal values. 211 * <P>Type: INTEGER</P> 212 * <P>Owner can Read</P> 213 */ 214 public static final String COLUMN_STATUS = "status"; 215 216 /** 217 * The name of the column containing the date at which some interesting 218 * status changed in the download. Stored as a System.currentTimeMillis() 219 * value. 220 * <P>Type: BIGINT</P> 221 * <P>Owner can Read</P> 222 */ 223 public static final String COLUMN_LAST_MODIFICATION = "lastmod"; 224 225 /** 226 * The name of the column containing the package name of the application 227 * that initiating the download. The download manager will send 228 * notifications to a component in this package when the download completes. 229 * <P>Type: TEXT</P> 230 * <P>Owner can Init/Read</P> 231 */ 232 public static final String COLUMN_NOTIFICATION_PACKAGE = "notificationpackage"; 233 234 /** 235 * The name of the column containing the component name of the class that 236 * will receive notifications associated with the download. The 237 * package/class combination is passed to 238 * Intent.setClassName(String,String). 239 * <P>Type: TEXT</P> 240 * <P>Owner can Init/Read</P> 241 */ 242 public static final String COLUMN_NOTIFICATION_CLASS = "notificationclass"; 243 244 /** 245 * If extras are specified when requesting a download they will be provided in the intent that 246 * is sent to the specified class and package when a download has finished. 247 * <P>Type: TEXT</P> 248 * <P>Owner can Init</P> 249 */ 250 public static final String COLUMN_NOTIFICATION_EXTRAS = "notificationextras"; 251 252 /** 253 * The name of the column contain the values of the cookie to be used for 254 * the download. This is used directly as the value for the Cookie: HTTP 255 * header that gets sent with the request. 256 * <P>Type: TEXT</P> 257 * <P>Owner can Init</P> 258 */ 259 public static final String COLUMN_COOKIE_DATA = "cookiedata"; 260 261 /** 262 * The name of the column containing the user agent that the initiating 263 * application wants the download manager to use for this download. 264 * <P>Type: TEXT</P> 265 * <P>Owner can Init</P> 266 */ 267 public static final String COLUMN_USER_AGENT = "useragent"; 268 269 /** 270 * The name of the column containing the referer (sic) that the initiating 271 * application wants the download manager to use for this download. 272 * <P>Type: TEXT</P> 273 * <P>Owner can Init</P> 274 */ 275 public static final String COLUMN_REFERER = "referer"; 276 277 /** 278 * The name of the column containing the total size of the file being 279 * downloaded. 280 * <P>Type: INTEGER</P> 281 * <P>Owner can Read</P> 282 */ 283 public static final String COLUMN_TOTAL_BYTES = "total_bytes"; 284 285 /** 286 * The name of the column containing the size of the part of the file that 287 * has been downloaded so far. 288 * <P>Type: INTEGER</P> 289 * <P>Owner can Read</P> 290 */ 291 public static final String COLUMN_CURRENT_BYTES = "current_bytes"; 292 293 /** 294 * The name of the column where the initiating application can provide the 295 * UID of another application that is allowed to access this download. If 296 * multiple applications share the same UID, all those applications will be 297 * allowed to access this download. This column can be updated after the 298 * download is initiated. This requires the permission 299 * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED. 300 * <P>Type: INTEGER</P> 301 * <P>Owner can Init</P> 302 */ 303 public static final String COLUMN_OTHER_UID = "otheruid"; 304 305 /** 306 * The name of the column where the initiating application can provided the 307 * title of this download. The title will be displayed ito the user in the 308 * list of downloads. 309 * <P>Type: TEXT</P> 310 * <P>Owner can Init/Read/Write</P> 311 */ 312 public static final String COLUMN_TITLE = "title"; 313 314 /** 315 * The name of the column where the initiating application can provide the 316 * description of this download. The description will be displayed to the 317 * user in the list of downloads. 318 * <P>Type: TEXT</P> 319 * <P>Owner can Init/Read/Write</P> 320 */ 321 public static final String COLUMN_DESCRIPTION = "description"; 322 323 /** 324 * The name of the column indicating whether the download was requesting through the public 325 * API. This controls some differences in behavior. 326 * <P>Type: BOOLEAN</P> 327 * <P>Owner can Init/Read</P> 328 */ 329 public static final String COLUMN_IS_PUBLIC_API = "is_public_api"; 330 331 /** 332 * The name of the column indicating whether roaming connections can be used. This is only 333 * used for public API downloads. 334 * <P>Type: BOOLEAN</P> 335 * <P>Owner can Init/Read</P> 336 */ 337 public static final String COLUMN_ALLOW_ROAMING = "allow_roaming"; 338 339 /** 340 * The name of the column holding a bitmask of allowed network types. This is only used for 341 * public API downloads. 342 * <P>Type: INTEGER</P> 343 * <P>Owner can Init/Read</P> 344 */ 345 public static final String COLUMN_ALLOWED_NETWORK_TYPES = "allowed_network_types"; 346 347 /** 348 * Whether or not this download should be displayed in the system's Downloads UI. Defaults 349 * to true. 350 * <P>Type: INTEGER</P> 351 * <P>Owner can Init/Read</P> 352 */ 353 public static final String COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI = "is_visible_in_downloads_ui"; 354 355 /** 356 * If true, the user has confirmed that this download can proceed over the mobile network 357 * even though it exceeds the recommended maximum size. 358 * <P>Type: BOOLEAN</P> 359 */ 360 public static final String COLUMN_BYPASS_RECOMMENDED_SIZE_LIMIT = 361 "bypass_recommended_size_limit"; 362 363 /** 364 * Set to true if this download is deleted. It is completely removed from the database 365 * when MediaProvider database also deletes the metadata asociated with this downloaded file. 366 * <P>Type: BOOLEAN</P> 367 * <P>Owner can Read</P> 368 */ 369 public static final String COLUMN_DELETED = "deleted"; 370 371 /** 372 * The URI to the corresponding entry in MediaProvider for this downloaded entry. It is 373 * used to delete the entries from MediaProvider database when it is deleted from the 374 * downloaded list. 375 * <P>Type: TEXT</P> 376 * <P>Owner can Read</P> 377 */ 378 public static final String COLUMN_MEDIAPROVIDER_URI = "mediaprovider_uri"; 379 380 /** 381 * The column that is used to remember whether the media scanner was invoked. 382 * It can take the values: null or 0(not scanned), 1(scanned), 2 (not scannable). 383 * <P>Type: TEXT</P> 384 */ 385 public static final String COLUMN_MEDIA_SCANNED = "scanned"; 386 387 /** 388 * The column with errorMsg for a failed downloaded. 389 * Used only for debugging purposes. 390 * <P>Type: TEXT</P> 391 */ 392 public static final String COLUMN_ERROR_MSG = "errorMsg"; 393 394 /** 395 * This column stores the source of the last update to this row. 396 * This column is only for internal use. 397 * Valid values are indicated by LAST_UPDATESRC_* constants. 398 * <P>Type: INT</P> 399 */ 400 public static final String COLUMN_LAST_UPDATESRC = "lastUpdateSrc"; 401 402 /** 403 * default value for {@link #COLUMN_LAST_UPDATESRC}. 404 * This value is used when this column's value is not relevant. 405 */ 406 public static final int LAST_UPDATESRC_NOT_RELEVANT = 0; 407 408 /** 409 * One of the values taken by {@link #COLUMN_LAST_UPDATESRC}. 410 * This value is used when the update is NOT to be relayed to the DownloadService 411 * (and thus spare DownloadService from scanning the database when this change occurs) 412 */ 413 public static final int LAST_UPDATESRC_DONT_NOTIFY_DOWNLOADSVC = 1; 414 415 /* 416 * Lists the destinations that an application can specify for a download. 417 */ 418 419 /** 420 * This download will be saved to the external storage. This is the 421 * default behavior, and should be used for any file that the user 422 * can freely access, copy, delete. Even with that destination, 423 * unencrypted DRM files are saved in secure internal storage. 424 * Downloads to the external destination only write files for which 425 * there is a registered handler. The resulting files are accessible 426 * by filename to all applications. 427 */ 428 public static final int DESTINATION_EXTERNAL = 0; 429 430 /** 431 * This download will be saved to the download manager's private 432 * partition. This is the behavior used by applications that want to 433 * download private files that are used and deleted soon after they 434 * get downloaded. All file types are allowed, and only the initiating 435 * application can access the file (indirectly through a content 436 * provider). This requires the 437 * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED permission. 438 */ 439 public static final int DESTINATION_CACHE_PARTITION = 1; 440 441 /** 442 * This download will be saved to the download manager's private 443 * partition and will be purged as necessary to make space. This is 444 * for private files (similar to CACHE_PARTITION) that aren't deleted 445 * immediately after they are used, and are kept around by the download 446 * manager as long as space is available. 447 */ 448 public static final int DESTINATION_CACHE_PARTITION_PURGEABLE = 2; 449 450 /** 451 * This download will be saved to the download manager's private 452 * partition, as with DESTINATION_CACHE_PARTITION, but the download 453 * will not proceed if the user is on a roaming data connection. 454 */ 455 public static final int DESTINATION_CACHE_PARTITION_NOROAMING = 3; 456 457 /** 458 * This download will be saved to the location given by the file URI in 459 * {@link #COLUMN_FILE_NAME_HINT}. 460 */ 461 public static final int DESTINATION_FILE_URI = 4; 462 463 /** 464 * This download will be saved to the system cache ("/cache") 465 * partition. This option is only used by system apps and so it requires 466 * android.permission.ACCESS_CACHE_FILESYSTEM permission. 467 */ 468 public static final int DESTINATION_SYSTEMCACHE_PARTITION = 5; 469 470 /** 471 * This download was completed by the caller (i.e., NOT downloadmanager) 472 * and caller wants to have this download displayed in Downloads App. 473 */ 474 public static final int DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD = 6; 475 476 /** 477 * This download is allowed to run. 478 */ 479 public static final int CONTROL_RUN = 0; 480 481 /** 482 * This download must pause at the first opportunity. 483 */ 484 public static final int CONTROL_PAUSED = 1; 485 486 /* 487 * Lists the states that the download manager can set on a download 488 * to notify applications of the download progress. 489 * The codes follow the HTTP families:<br> 490 * 1xx: informational<br> 491 * 2xx: success<br> 492 * 3xx: redirects (not used by the download manager)<br> 493 * 4xx: client errors<br> 494 * 5xx: server errors 495 */ 496 497 /** 498 * Returns whether the status is informational (i.e. 1xx). 499 */ 500 public static boolean isStatusInformational(int status) { 501 return (status >= 100 && status < 200); 502 } 503 504 /** 505 * Returns whether the status is a success (i.e. 2xx). 506 */ 507 public static boolean isStatusSuccess(int status) { 508 return (status >= 200 && status < 300); 509 } 510 511 /** 512 * Returns whether the status is an error (i.e. 4xx or 5xx). 513 */ 514 public static boolean isStatusError(int status) { 515 return (status >= 400 && status < 600); 516 } 517 518 /** 519 * Returns whether the status is a client error (i.e. 4xx). 520 */ 521 public static boolean isStatusClientError(int status) { 522 return (status >= 400 && status < 500); 523 } 524 525 /** 526 * Returns whether the status is a server error (i.e. 5xx). 527 */ 528 public static boolean isStatusServerError(int status) { 529 return (status >= 500 && status < 600); 530 } 531 532 /** 533 * this method determines if a notification should be displayed for a 534 * given {@link #COLUMN_VISIBILITY} value 535 * @param visibility the value of {@link #COLUMN_VISIBILITY}. 536 * @return true if the notification should be displayed. false otherwise. 537 */ 538 public static boolean isNotificationToBeDisplayed(int visibility) { 539 return visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED || 540 visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION; 541 } 542 543 /** 544 * Returns whether the download has completed (either with success or 545 * error). 546 */ 547 public static boolean isStatusCompleted(int status) { 548 return (status >= 200 && status < 300) || (status >= 400 && status < 600); 549 } 550 551 /** 552 * This download hasn't stated yet 553 */ 554 public static final int STATUS_PENDING = 190; 555 556 /** 557 * This download has started 558 */ 559 public static final int STATUS_RUNNING = 192; 560 561 /** 562 * This download has been paused by the owning app. 563 */ 564 public static final int STATUS_PAUSED_BY_APP = 193; 565 566 /** 567 * This download encountered some network error and is waiting before retrying the request. 568 */ 569 public static final int STATUS_WAITING_TO_RETRY = 194; 570 571 /** 572 * This download is waiting for network connectivity to proceed. 573 */ 574 public static final int STATUS_WAITING_FOR_NETWORK = 195; 575 576 /** 577 * This download exceeded a size limit for mobile networks and is waiting for a Wi-Fi 578 * connection to proceed. 579 */ 580 public static final int STATUS_QUEUED_FOR_WIFI = 196; 581 582 /** 583 * This download couldn't be completed due to insufficient storage 584 * space. Typically, this is because the SD card is full. 585 */ 586 public static final int STATUS_INSUFFICIENT_SPACE_ERROR = 198; 587 588 /** 589 * This download couldn't be completed because no external storage 590 * device was found. Typically, this is because the SD card is not 591 * mounted. 592 */ 593 public static final int STATUS_DEVICE_NOT_FOUND_ERROR = 199; 594 595 /** 596 * This download has successfully completed. 597 * Warning: there might be other status values that indicate success 598 * in the future. 599 * Use isSucccess() to capture the entire category. 600 */ 601 public static final int STATUS_SUCCESS = 200; 602 603 /** 604 * This request couldn't be parsed. This is also used when processing 605 * requests with unknown/unsupported URI schemes. 606 */ 607 public static final int STATUS_BAD_REQUEST = 400; 608 609 /** 610 * This download can't be performed because the content type cannot be 611 * handled. 612 */ 613 public static final int STATUS_NOT_ACCEPTABLE = 406; 614 615 /** 616 * This download cannot be performed because the length cannot be 617 * determined accurately. This is the code for the HTTP error "Length 618 * Required", which is typically used when making requests that require 619 * a content length but don't have one, and it is also used in the 620 * client when a response is received whose length cannot be determined 621 * accurately (therefore making it impossible to know when a download 622 * completes). 623 */ 624 public static final int STATUS_LENGTH_REQUIRED = 411; 625 626 /** 627 * This download was interrupted and cannot be resumed. 628 * This is the code for the HTTP error "Precondition Failed", and it is 629 * also used in situations where the client doesn't have an ETag at all. 630 */ 631 public static final int STATUS_PRECONDITION_FAILED = 412; 632 633 /** 634 * The lowest-valued error status that is not an actual HTTP status code. 635 */ 636 public static final int MIN_ARTIFICIAL_ERROR_STATUS = 488; 637 638 /** 639 * The requested destination file already exists. 640 */ 641 public static final int STATUS_FILE_ALREADY_EXISTS_ERROR = 488; 642 643 /** 644 * Some possibly transient error occurred, but we can't resume the download. 645 */ 646 public static final int STATUS_CANNOT_RESUME = 489; 647 648 /** 649 * This download was canceled 650 */ 651 public static final int STATUS_CANCELED = 490; 652 653 /** 654 * This download has completed with an error. 655 * Warning: there will be other status values that indicate errors in 656 * the future. Use isStatusError() to capture the entire category. 657 */ 658 public static final int STATUS_UNKNOWN_ERROR = 491; 659 660 /** 661 * This download couldn't be completed because of a storage issue. 662 * Typically, that's because the filesystem is missing or full. 663 * Use the more specific {@link #STATUS_INSUFFICIENT_SPACE_ERROR} 664 * and {@link #STATUS_DEVICE_NOT_FOUND_ERROR} when appropriate. 665 */ 666 public static final int STATUS_FILE_ERROR = 492; 667 668 /** 669 * This download couldn't be completed because of an HTTP 670 * redirect response that the download manager couldn't 671 * handle. 672 */ 673 public static final int STATUS_UNHANDLED_REDIRECT = 493; 674 675 /** 676 * This download couldn't be completed because of an 677 * unspecified unhandled HTTP code. 678 */ 679 public static final int STATUS_UNHANDLED_HTTP_CODE = 494; 680 681 /** 682 * This download couldn't be completed because of an 683 * error receiving or processing data at the HTTP level. 684 */ 685 public static final int STATUS_HTTP_DATA_ERROR = 495; 686 687 /** 688 * This download couldn't be completed because of an 689 * HttpException while setting up the request. 690 */ 691 public static final int STATUS_HTTP_EXCEPTION = 496; 692 693 /** 694 * This download couldn't be completed because there were 695 * too many redirects. 696 */ 697 public static final int STATUS_TOO_MANY_REDIRECTS = 497; 698 699 /** 700 * This download has failed because requesting application has been 701 * blocked by {@link NetworkPolicyManager}. 702 * 703 * @hide 704 */ 705 public static final int STATUS_BLOCKED = 498; 706 707 /** {@hide} */ 708 public static String statusToString(int status) { 709 switch (status) { 710 case STATUS_PENDING: return "PENDING"; 711 case STATUS_RUNNING: return "RUNNING"; 712 case STATUS_PAUSED_BY_APP: return "PAUSED_BY_APP"; 713 case STATUS_WAITING_TO_RETRY: return "WAITING_TO_RETRY"; 714 case STATUS_WAITING_FOR_NETWORK: return "WAITING_FOR_NETWORK"; 715 case STATUS_QUEUED_FOR_WIFI: return "QUEUED_FOR_WIFI"; 716 case STATUS_INSUFFICIENT_SPACE_ERROR: return "INSUFFICIENT_SPACE_ERROR"; 717 case STATUS_DEVICE_NOT_FOUND_ERROR: return "DEVICE_NOT_FOUND_ERROR"; 718 case STATUS_SUCCESS: return "SUCCESS"; 719 case STATUS_BAD_REQUEST: return "BAD_REQUEST"; 720 case STATUS_NOT_ACCEPTABLE: return "NOT_ACCEPTABLE"; 721 case STATUS_LENGTH_REQUIRED: return "LENGTH_REQUIRED"; 722 case STATUS_PRECONDITION_FAILED: return "PRECONDITION_FAILED"; 723 case STATUS_FILE_ALREADY_EXISTS_ERROR: return "FILE_ALREADY_EXISTS_ERROR"; 724 case STATUS_CANNOT_RESUME: return "CANNOT_RESUME"; 725 case STATUS_CANCELED: return "CANCELED"; 726 case STATUS_UNKNOWN_ERROR: return "UNKNOWN_ERROR"; 727 case STATUS_FILE_ERROR: return "FILE_ERROR"; 728 case STATUS_UNHANDLED_REDIRECT: return "UNHANDLED_REDIRECT"; 729 case STATUS_UNHANDLED_HTTP_CODE: return "UNHANDLED_HTTP_CODE"; 730 case STATUS_HTTP_DATA_ERROR: return "HTTP_DATA_ERROR"; 731 case STATUS_HTTP_EXCEPTION: return "HTTP_EXCEPTION"; 732 case STATUS_TOO_MANY_REDIRECTS: return "TOO_MANY_REDIRECTS"; 733 case STATUS_BLOCKED: return "BLOCKED"; 734 default: return Integer.toString(status); 735 } 736 } 737 738 /** 739 * This download is visible but only shows in the notifications 740 * while it's in progress. 741 */ 742 public static final int VISIBILITY_VISIBLE = DownloadManager.Request.VISIBILITY_VISIBLE; 743 744 /** 745 * This download is visible and shows in the notifications while 746 * in progress and after completion. 747 */ 748 public static final int VISIBILITY_VISIBLE_NOTIFY_COMPLETED = 749 DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED; 750 751 /** 752 * This download doesn't show in the UI or in the notifications. 753 */ 754 public static final int VISIBILITY_HIDDEN = DownloadManager.Request.VISIBILITY_HIDDEN; 755 756 /** 757 * Constants related to HTTP request headers associated with each download. 758 */ 759 public static class RequestHeaders { 760 public static final String HEADERS_DB_TABLE = "request_headers"; 761 public static final String COLUMN_DOWNLOAD_ID = "download_id"; 762 public static final String COLUMN_HEADER = "header"; 763 public static final String COLUMN_VALUE = "value"; 764 765 /** 766 * Path segment to add to a download URI to retrieve request headers 767 */ 768 public static final String URI_SEGMENT = "headers"; 769 770 /** 771 * Prefix for ContentValues keys that contain HTTP header lines, to be passed to 772 * DownloadProvider.insert(). 773 */ 774 public static final String INSERT_KEY_PREFIX = "http_header_"; 775 } 776 } 777 778 /** 779 * Query where clause for general querying. 780 */ 781 private static final String QUERY_WHERE_CLAUSE = Impl.COLUMN_NOTIFICATION_PACKAGE + "=? AND " 782 + Impl.COLUMN_NOTIFICATION_CLASS + "=?"; 783 784 /** 785 * Delete all the downloads for a package/class pair. 786 */ 787 public static final void removeAllDownloadsByPackage( 788 Context context, String notification_package, String notification_class) { 789 context.getContentResolver().delete(Impl.CONTENT_URI, QUERY_WHERE_CLAUSE, 790 new String[] { notification_package, notification_class }); 791 } 792} 793