Downloads.java revision 54781207d31fd0fb33c6038b6999ba649fc488b2
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 holding a bitmask of allowed network types. This is only used for 333 * public API downloads. 334 * <P>Type: INTEGER</P> 335 * <P>Owner can Init/Read</P> 336 */ 337 public static final String COLUMN_ALLOWED_NETWORK_TYPES = "allowed_network_types"; 338 339 /** 340 * The name of the column indicating whether roaming connections can be used. This is only 341 * used for public API downloads. 342 * <P>Type: BOOLEAN</P> 343 * <P>Owner can Init/Read</P> 344 */ 345 public static final String COLUMN_ALLOW_ROAMING = "allow_roaming"; 346 347 /** 348 * The name of the column indicating whether metered connections can be used. This is only 349 * used for public API downloads. 350 * <P>Type: BOOLEAN</P> 351 * <P>Owner can Init/Read</P> 352 */ 353 public static final String COLUMN_ALLOW_METERED = "allow_metered"; 354 355 /** 356 * Whether or not this download should be displayed in the system's Downloads UI. Defaults 357 * to true. 358 * <P>Type: INTEGER</P> 359 * <P>Owner can Init/Read</P> 360 */ 361 public static final String COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI = "is_visible_in_downloads_ui"; 362 363 /** 364 * If true, the user has confirmed that this download can proceed over the mobile network 365 * even though it exceeds the recommended maximum size. 366 * <P>Type: BOOLEAN</P> 367 */ 368 public static final String COLUMN_BYPASS_RECOMMENDED_SIZE_LIMIT = 369 "bypass_recommended_size_limit"; 370 371 /** 372 * Set to true if this download is deleted. It is completely removed from the database 373 * when MediaProvider database also deletes the metadata asociated with this downloaded file. 374 * <P>Type: BOOLEAN</P> 375 * <P>Owner can Read</P> 376 */ 377 public static final String COLUMN_DELETED = "deleted"; 378 379 /** 380 * The URI to the corresponding entry in MediaProvider for this downloaded entry. It is 381 * used to delete the entries from MediaProvider database when it is deleted from the 382 * downloaded list. 383 * <P>Type: TEXT</P> 384 * <P>Owner can Read</P> 385 */ 386 public static final String COLUMN_MEDIAPROVIDER_URI = "mediaprovider_uri"; 387 388 /** 389 * The column that is used to remember whether the media scanner was invoked. 390 * It can take the values: null or 0(not scanned), 1(scanned), 2 (not scannable). 391 * <P>Type: TEXT</P> 392 */ 393 public static final String COLUMN_MEDIA_SCANNED = "scanned"; 394 395 /** 396 * The column with errorMsg for a failed downloaded. 397 * Used only for debugging purposes. 398 * <P>Type: TEXT</P> 399 */ 400 public static final String COLUMN_ERROR_MSG = "errorMsg"; 401 402 /** 403 * This column stores the source of the last update to this row. 404 * This column is only for internal use. 405 * Valid values are indicated by LAST_UPDATESRC_* constants. 406 * <P>Type: INT</P> 407 */ 408 public static final String COLUMN_LAST_UPDATESRC = "lastUpdateSrc"; 409 410 /** The column that is used to count retries */ 411 public static final String COLUMN_FAILED_CONNECTIONS = "numfailed"; 412 413 /** 414 * default value for {@link #COLUMN_LAST_UPDATESRC}. 415 * This value is used when this column's value is not relevant. 416 */ 417 public static final int LAST_UPDATESRC_NOT_RELEVANT = 0; 418 419 /** 420 * One of the values taken by {@link #COLUMN_LAST_UPDATESRC}. 421 * This value is used when the update is NOT to be relayed to the DownloadService 422 * (and thus spare DownloadService from scanning the database when this change occurs) 423 */ 424 public static final int LAST_UPDATESRC_DONT_NOTIFY_DOWNLOADSVC = 1; 425 426 /* 427 * Lists the destinations that an application can specify for a download. 428 */ 429 430 /** 431 * This download will be saved to the external storage. This is the 432 * default behavior, and should be used for any file that the user 433 * can freely access, copy, delete. Even with that destination, 434 * unencrypted DRM files are saved in secure internal storage. 435 * Downloads to the external destination only write files for which 436 * there is a registered handler. The resulting files are accessible 437 * by filename to all applications. 438 */ 439 public static final int DESTINATION_EXTERNAL = 0; 440 441 /** 442 * This download will be saved to the download manager's private 443 * partition. This is the behavior used by applications that want to 444 * download private files that are used and deleted soon after they 445 * get downloaded. All file types are allowed, and only the initiating 446 * application can access the file (indirectly through a content 447 * provider). This requires the 448 * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED permission. 449 */ 450 public static final int DESTINATION_CACHE_PARTITION = 1; 451 452 /** 453 * This download will be saved to the download manager's private 454 * partition and will be purged as necessary to make space. This is 455 * for private files (similar to CACHE_PARTITION) that aren't deleted 456 * immediately after they are used, and are kept around by the download 457 * manager as long as space is available. 458 */ 459 public static final int DESTINATION_CACHE_PARTITION_PURGEABLE = 2; 460 461 /** 462 * This download will be saved to the download manager's private 463 * partition, as with DESTINATION_CACHE_PARTITION, but the download 464 * will not proceed if the user is on a roaming data connection. 465 */ 466 public static final int DESTINATION_CACHE_PARTITION_NOROAMING = 3; 467 468 /** 469 * This download will be saved to the location given by the file URI in 470 * {@link #COLUMN_FILE_NAME_HINT}. 471 */ 472 public static final int DESTINATION_FILE_URI = 4; 473 474 /** 475 * This download will be saved to the system cache ("/cache") 476 * partition. This option is only used by system apps and so it requires 477 * android.permission.ACCESS_CACHE_FILESYSTEM permission. 478 */ 479 public static final int DESTINATION_SYSTEMCACHE_PARTITION = 5; 480 481 /** 482 * This download was completed by the caller (i.e., NOT downloadmanager) 483 * and caller wants to have this download displayed in Downloads App. 484 */ 485 public static final int DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD = 6; 486 487 /** 488 * This download is allowed to run. 489 */ 490 public static final int CONTROL_RUN = 0; 491 492 /** 493 * This download must pause at the first opportunity. 494 */ 495 public static final int CONTROL_PAUSED = 1; 496 497 /* 498 * Lists the states that the download manager can set on a download 499 * to notify applications of the download progress. 500 * The codes follow the HTTP families:<br> 501 * 1xx: informational<br> 502 * 2xx: success<br> 503 * 3xx: redirects (not used by the download manager)<br> 504 * 4xx: client errors<br> 505 * 5xx: server errors 506 */ 507 508 /** 509 * Returns whether the status is informational (i.e. 1xx). 510 */ 511 public static boolean isStatusInformational(int status) { 512 return (status >= 100 && status < 200); 513 } 514 515 /** 516 * Returns whether the status is a success (i.e. 2xx). 517 */ 518 public static boolean isStatusSuccess(int status) { 519 return (status >= 200 && status < 300); 520 } 521 522 /** 523 * Returns whether the status is an error (i.e. 4xx or 5xx). 524 */ 525 public static boolean isStatusError(int status) { 526 return (status >= 400 && status < 600); 527 } 528 529 /** 530 * Returns whether the status is a client error (i.e. 4xx). 531 */ 532 public static boolean isStatusClientError(int status) { 533 return (status >= 400 && status < 500); 534 } 535 536 /** 537 * Returns whether the status is a server error (i.e. 5xx). 538 */ 539 public static boolean isStatusServerError(int status) { 540 return (status >= 500 && status < 600); 541 } 542 543 /** 544 * this method determines if a notification should be displayed for a 545 * given {@link #COLUMN_VISIBILITY} value 546 * @param visibility the value of {@link #COLUMN_VISIBILITY}. 547 * @return true if the notification should be displayed. false otherwise. 548 */ 549 public static boolean isNotificationToBeDisplayed(int visibility) { 550 return visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED || 551 visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION; 552 } 553 554 /** 555 * Returns whether the download has completed (either with success or 556 * error). 557 */ 558 public static boolean isStatusCompleted(int status) { 559 return (status >= 200 && status < 300) || (status >= 400 && status < 600); 560 } 561 562 /** 563 * This download hasn't stated yet 564 */ 565 public static final int STATUS_PENDING = 190; 566 567 /** 568 * This download has started 569 */ 570 public static final int STATUS_RUNNING = 192; 571 572 /** 573 * This download has been paused by the owning app. 574 */ 575 public static final int STATUS_PAUSED_BY_APP = 193; 576 577 /** 578 * This download encountered some network error and is waiting before retrying the request. 579 */ 580 public static final int STATUS_WAITING_TO_RETRY = 194; 581 582 /** 583 * This download is waiting for network connectivity to proceed. 584 */ 585 public static final int STATUS_WAITING_FOR_NETWORK = 195; 586 587 /** 588 * This download exceeded a size limit for mobile networks and is waiting for a Wi-Fi 589 * connection to proceed. 590 */ 591 public static final int STATUS_QUEUED_FOR_WIFI = 196; 592 593 /** 594 * This download couldn't be completed due to insufficient storage 595 * space. Typically, this is because the SD card is full. 596 */ 597 public static final int STATUS_INSUFFICIENT_SPACE_ERROR = 198; 598 599 /** 600 * This download couldn't be completed because no external storage 601 * device was found. Typically, this is because the SD card is not 602 * mounted. 603 */ 604 public static final int STATUS_DEVICE_NOT_FOUND_ERROR = 199; 605 606 /** 607 * This download has successfully completed. 608 * Warning: there might be other status values that indicate success 609 * in the future. 610 * Use isSucccess() to capture the entire category. 611 */ 612 public static final int STATUS_SUCCESS = 200; 613 614 /** 615 * This request couldn't be parsed. This is also used when processing 616 * requests with unknown/unsupported URI schemes. 617 */ 618 public static final int STATUS_BAD_REQUEST = 400; 619 620 /** 621 * This download can't be performed because the content type cannot be 622 * handled. 623 */ 624 public static final int STATUS_NOT_ACCEPTABLE = 406; 625 626 /** 627 * This download cannot be performed because the length cannot be 628 * determined accurately. This is the code for the HTTP error "Length 629 * Required", which is typically used when making requests that require 630 * a content length but don't have one, and it is also used in the 631 * client when a response is received whose length cannot be determined 632 * accurately (therefore making it impossible to know when a download 633 * completes). 634 */ 635 public static final int STATUS_LENGTH_REQUIRED = 411; 636 637 /** 638 * This download was interrupted and cannot be resumed. 639 * This is the code for the HTTP error "Precondition Failed", and it is 640 * also used in situations where the client doesn't have an ETag at all. 641 */ 642 public static final int STATUS_PRECONDITION_FAILED = 412; 643 644 /** 645 * The lowest-valued error status that is not an actual HTTP status code. 646 */ 647 public static final int MIN_ARTIFICIAL_ERROR_STATUS = 488; 648 649 /** 650 * The requested destination file already exists. 651 */ 652 public static final int STATUS_FILE_ALREADY_EXISTS_ERROR = 488; 653 654 /** 655 * Some possibly transient error occurred, but we can't resume the download. 656 */ 657 public static final int STATUS_CANNOT_RESUME = 489; 658 659 /** 660 * This download was canceled 661 */ 662 public static final int STATUS_CANCELED = 490; 663 664 /** 665 * This download has completed with an error. 666 * Warning: there will be other status values that indicate errors in 667 * the future. Use isStatusError() to capture the entire category. 668 */ 669 public static final int STATUS_UNKNOWN_ERROR = 491; 670 671 /** 672 * This download couldn't be completed because of a storage issue. 673 * Typically, that's because the filesystem is missing or full. 674 * Use the more specific {@link #STATUS_INSUFFICIENT_SPACE_ERROR} 675 * and {@link #STATUS_DEVICE_NOT_FOUND_ERROR} when appropriate. 676 */ 677 public static final int STATUS_FILE_ERROR = 492; 678 679 /** 680 * This download couldn't be completed because of an HTTP 681 * redirect response that the download manager couldn't 682 * handle. 683 */ 684 public static final int STATUS_UNHANDLED_REDIRECT = 493; 685 686 /** 687 * This download couldn't be completed because of an 688 * unspecified unhandled HTTP code. 689 */ 690 public static final int STATUS_UNHANDLED_HTTP_CODE = 494; 691 692 /** 693 * This download couldn't be completed because of an 694 * error receiving or processing data at the HTTP level. 695 */ 696 public static final int STATUS_HTTP_DATA_ERROR = 495; 697 698 /** 699 * This download couldn't be completed because of an 700 * HttpException while setting up the request. 701 */ 702 public static final int STATUS_HTTP_EXCEPTION = 496; 703 704 /** 705 * This download couldn't be completed because there were 706 * too many redirects. 707 */ 708 public static final int STATUS_TOO_MANY_REDIRECTS = 497; 709 710 /** 711 * This download has failed because requesting application has been 712 * blocked by {@link NetworkPolicyManager}. 713 * 714 * @hide 715 * @deprecated since behavior now uses 716 * {@link #STATUS_WAITING_FOR_NETWORK} 717 */ 718 @Deprecated 719 public static final int STATUS_BLOCKED = 498; 720 721 /** {@hide} */ 722 public static String statusToString(int status) { 723 switch (status) { 724 case STATUS_PENDING: return "PENDING"; 725 case STATUS_RUNNING: return "RUNNING"; 726 case STATUS_PAUSED_BY_APP: return "PAUSED_BY_APP"; 727 case STATUS_WAITING_TO_RETRY: return "WAITING_TO_RETRY"; 728 case STATUS_WAITING_FOR_NETWORK: return "WAITING_FOR_NETWORK"; 729 case STATUS_QUEUED_FOR_WIFI: return "QUEUED_FOR_WIFI"; 730 case STATUS_INSUFFICIENT_SPACE_ERROR: return "INSUFFICIENT_SPACE_ERROR"; 731 case STATUS_DEVICE_NOT_FOUND_ERROR: return "DEVICE_NOT_FOUND_ERROR"; 732 case STATUS_SUCCESS: return "SUCCESS"; 733 case STATUS_BAD_REQUEST: return "BAD_REQUEST"; 734 case STATUS_NOT_ACCEPTABLE: return "NOT_ACCEPTABLE"; 735 case STATUS_LENGTH_REQUIRED: return "LENGTH_REQUIRED"; 736 case STATUS_PRECONDITION_FAILED: return "PRECONDITION_FAILED"; 737 case STATUS_FILE_ALREADY_EXISTS_ERROR: return "FILE_ALREADY_EXISTS_ERROR"; 738 case STATUS_CANNOT_RESUME: return "CANNOT_RESUME"; 739 case STATUS_CANCELED: return "CANCELED"; 740 case STATUS_UNKNOWN_ERROR: return "UNKNOWN_ERROR"; 741 case STATUS_FILE_ERROR: return "FILE_ERROR"; 742 case STATUS_UNHANDLED_REDIRECT: return "UNHANDLED_REDIRECT"; 743 case STATUS_UNHANDLED_HTTP_CODE: return "UNHANDLED_HTTP_CODE"; 744 case STATUS_HTTP_DATA_ERROR: return "HTTP_DATA_ERROR"; 745 case STATUS_HTTP_EXCEPTION: return "HTTP_EXCEPTION"; 746 case STATUS_TOO_MANY_REDIRECTS: return "TOO_MANY_REDIRECTS"; 747 case STATUS_BLOCKED: return "BLOCKED"; 748 default: return Integer.toString(status); 749 } 750 } 751 752 /** 753 * This download is visible but only shows in the notifications 754 * while it's in progress. 755 */ 756 public static final int VISIBILITY_VISIBLE = DownloadManager.Request.VISIBILITY_VISIBLE; 757 758 /** 759 * This download is visible and shows in the notifications while 760 * in progress and after completion. 761 */ 762 public static final int VISIBILITY_VISIBLE_NOTIFY_COMPLETED = 763 DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED; 764 765 /** 766 * This download doesn't show in the UI or in the notifications. 767 */ 768 public static final int VISIBILITY_HIDDEN = DownloadManager.Request.VISIBILITY_HIDDEN; 769 770 /** 771 * Constants related to HTTP request headers associated with each download. 772 */ 773 public static class RequestHeaders { 774 public static final String HEADERS_DB_TABLE = "request_headers"; 775 public static final String COLUMN_DOWNLOAD_ID = "download_id"; 776 public static final String COLUMN_HEADER = "header"; 777 public static final String COLUMN_VALUE = "value"; 778 779 /** 780 * Path segment to add to a download URI to retrieve request headers 781 */ 782 public static final String URI_SEGMENT = "headers"; 783 784 /** 785 * Prefix for ContentValues keys that contain HTTP header lines, to be passed to 786 * DownloadProvider.insert(). 787 */ 788 public static final String INSERT_KEY_PREFIX = "http_header_"; 789 } 790 } 791 792 /** 793 * Query where clause for general querying. 794 */ 795 private static final String QUERY_WHERE_CLAUSE = Impl.COLUMN_NOTIFICATION_PACKAGE + "=? AND " 796 + Impl.COLUMN_NOTIFICATION_CLASS + "=?"; 797 798 /** 799 * Delete all the downloads for a package/class pair. 800 */ 801 public static final void removeAllDownloadsByPackage( 802 Context context, String notification_package, String notification_class) { 803 context.getContentResolver().delete(Impl.CONTENT_URI, QUERY_WHERE_CLAUSE, 804 new String[] { notification_package, notification_class }); 805 } 806} 807