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Diffstat (limited to 'src/com/android/messaging/mmslib/Downloads.java')
| -rw-r--r-- | src/com/android/messaging/mmslib/Downloads.java | 807 |
1 files changed, 807 insertions, 0 deletions
diff --git a/src/com/android/messaging/mmslib/Downloads.java b/src/com/android/messaging/mmslib/Downloads.java new file mode 100644 index 0000000..9afc48c --- /dev/null +++ b/src/com/android/messaging/mmslib/Downloads.java @@ -0,0 +1,807 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.messaging.mmslib; + +import android.app.DownloadManager; +import android.content.Context; +import android.net.Uri; +import android.provider.BaseColumns; + +/** + * The Download Manager + * + * @pending + */ +public final class Downloads { + private Downloads() {} + + /** + * Implementation details + * + * Exposes constants used to interact with the download manager's + * content provider. + * The constants URI ... STATUS are the names of columns in the downloads table. + * + * @hide + */ + public static final class Impl implements BaseColumns { + private Impl() {} + + /** + * The permission to access the download manager + */ + public static final String PERMISSION_ACCESS = "android.permission.ACCESS_DOWNLOAD_MANAGER"; + + /** + * The permission to access the download manager's advanced functions + */ + public static final String PERMISSION_ACCESS_ADVANCED = + "android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED"; + + /** + * The permission to access the all the downloads in the manager. + */ + public static final String PERMISSION_ACCESS_ALL = + "android.permission.ACCESS_ALL_DOWNLOADS"; + + /** + * The permission to directly access the download manager's cache + * directory + */ + public static final String PERMISSION_CACHE = "android.permission.ACCESS_CACHE_FILESYSTEM"; + + /** + * The permission to send broadcasts on download completion + */ + public static final String PERMISSION_SEND_INTENTS = + "android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS"; + + /** + * The permission to download files to the cache partition that won't be automatically + * purged when space is needed. + */ + public static final String PERMISSION_CACHE_NON_PURGEABLE = + "android.permission.DOWNLOAD_CACHE_NON_PURGEABLE"; + + /** + * The permission to download files without any system notification being shown. + */ + public static final String PERMISSION_NO_NOTIFICATION = + "android.permission.DOWNLOAD_WITHOUT_NOTIFICATION"; + + /** + * The content:// URI to access downloads owned by the caller's UID. + */ + public static final Uri CONTENT_URI = + Uri.parse("content://downloads/my_downloads"); + + /** + * The content URI for accessing all downloads across all UIDs (requires the + * ACCESS_ALL_DOWNLOADS permission). + */ + public static final Uri ALL_DOWNLOADS_CONTENT_URI = + Uri.parse("content://downloads/all_downloads"); + + /** URI segment to access a publicly accessible downloaded file */ + public static final String PUBLICLY_ACCESSIBLE_DOWNLOADS_URI_SEGMENT = "public_downloads"; + + /** + * The content URI for accessing publicly accessible downloads (i.e., it requires no + * permissions to access this downloaded file) + */ + public static final Uri PUBLICLY_ACCESSIBLE_DOWNLOADS_URI = + Uri.parse("content://downloads/" + PUBLICLY_ACCESSIBLE_DOWNLOADS_URI_SEGMENT); + + /** + * Broadcast Action: this is sent by the download manager to the app + * that had initiated a download when that download completes. The + * download's content: uri is specified in the intent's data. + */ + public static final String ACTION_DOWNLOAD_COMPLETED = + "android.intent.action.DOWNLOAD_COMPLETED"; + + /** + * Broadcast Action: this is sent by the download manager to the app + * that had initiated a download when the user selects the notification + * associated with that download. The download's content: uri is specified + * in the intent's data if the click is associated with a single download, + * or Downloads.CONTENT_URI if the notification is associated with + * multiple downloads. + * Note: this is not currently sent for downloads that have completed + * successfully. + */ + public static final String ACTION_NOTIFICATION_CLICKED = + "android.intent.action.DOWNLOAD_NOTIFICATION_CLICKED"; + + /** + * The name of the column containing the URI of the data being downloaded. + * <P>Type: TEXT</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_URI = "uri"; + + /** + * The name of the column containing application-specific data. + * <P>Type: TEXT</P> + * <P>Owner can Init/Read/Write</P> + */ + public static final String COLUMN_APP_DATA = "entity"; + + /** + * The name of the column containing the flags that indicates whether + * the initiating application is capable of verifying the integrity of + * the downloaded file. When this flag is set, the download manager + * performs downloads and reports success even in some situations where + * it can't guarantee that the download has completed (e.g. when doing + * a byte-range request without an ETag, or when it can't determine + * whether a download fully completed). + * <P>Type: BOOLEAN</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_NO_INTEGRITY = "no_integrity"; + + /** + * The name of the column containing the filename that the initiating + * application recommends. When possible, the download manager will attempt + * to use this filename, or a variation, as the actual name for the file. + * <P>Type: TEXT</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_FILE_NAME_HINT = "hint"; + + /** + * The name of the column containing the filename where the downloaded data + * was actually stored. + * <P>Type: TEXT</P> + * <P>Owner can Read</P> + */ + public static final String _DATA = "_data"; + + /** + * The name of the column containing the MIME type of the downloaded data. + * <P>Type: TEXT</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_MIME_TYPE = "mimetype"; + + /** + * The name of the column containing the flag that controls the destination + * of the download. See the DESTINATION_* constants for a list of legal values. + * <P>Type: INTEGER</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_DESTINATION = "destination"; + + /** + * The name of the column containing the flags that controls whether the + * download is displayed by the UI. See the VISIBILITY_* constants for + * a list of legal values. + * <P>Type: INTEGER</P> + * <P>Owner can Init/Read/Write</P> + */ + public static final String COLUMN_VISIBILITY = "visibility"; + + /** + * The name of the column containing the current control state of the download. + * Applications can write to this to control (pause/resume) the download. + * the CONTROL_* constants for a list of legal values. + * <P>Type: INTEGER</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_CONTROL = "control"; + + /** + * The name of the column containing the current status of the download. + * Applications can read this to follow the progress of each download. See + * the STATUS_* constants for a list of legal values. + * <P>Type: INTEGER</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_STATUS = "status"; + + /** + * The name of the column containing the date at which some interesting + * status changed in the download. Stored as a System.currentTimeMillis() + * value. + * <P>Type: BIGINT</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_LAST_MODIFICATION = "lastmod"; + + /** + * The name of the column containing the package name of the application + * that initiating the download. The download manager will send + * notifications to a component in this package when the download completes. + * <P>Type: TEXT</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_NOTIFICATION_PACKAGE = "notificationpackage"; + + /** + * The name of the column containing the component name of the class that + * will receive notifications associated with the download. The + * package/class combination is passed to + * Intent.setClassName(String,String). + * <P>Type: TEXT</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_NOTIFICATION_CLASS = "notificationclass"; + + /** + * If extras are specified when requesting a download they will be provided in the intent + * that is sent to the specified class and package when a download has finished. + * <P>Type: TEXT</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_NOTIFICATION_EXTRAS = "notificationextras"; + + /** + * The name of the column contain the values of the cookie to be used for + * the download. This is used directly as the value for the Cookie: HTTP + * header that gets sent with the request. + * <P>Type: TEXT</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_COOKIE_DATA = "cookiedata"; + + /** + * The name of the column containing the user agent that the initiating + * application wants the download manager to use for this download. + * <P>Type: TEXT</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_USER_AGENT = "useragent"; + + /** + * The name of the column containing the referer (sic) that the initiating + * application wants the download manager to use for this download. + * <P>Type: TEXT</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_REFERER = "referer"; + + /** + * The name of the column containing the total size of the file being + * downloaded. + * <P>Type: INTEGER</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_TOTAL_BYTES = "total_bytes"; + + /** + * The name of the column containing the size of the part of the file that + * has been downloaded so far. + * <P>Type: INTEGER</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_CURRENT_BYTES = "current_bytes"; + + /** + * The name of the column where the initiating application can provide the + * UID of another application that is allowed to access this download. If + * multiple applications share the same UID, all those applications will be + * allowed to access this download. This column can be updated after the + * download is initiated. This requires the permission + * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED. + * <P>Type: INTEGER</P> + * <P>Owner can Init</P> + */ + public static final String COLUMN_OTHER_UID = "otheruid"; + + /** + * The name of the column where the initiating application can provided the + * title of this download. The title will be displayed ito the user in the + * list of downloads. + * <P>Type: TEXT</P> + * <P>Owner can Init/Read/Write</P> + */ + public static final String COLUMN_TITLE = "title"; + + /** + * The name of the column where the initiating application can provide the + * description of this download. The description will be displayed to the + * user in the list of downloads. + * <P>Type: TEXT</P> + * <P>Owner can Init/Read/Write</P> + */ + public static final String COLUMN_DESCRIPTION = "description"; + + /** + * The name of the column indicating whether the download was requesting through the public + * API. This controls some differences in behavior. + * <P>Type: BOOLEAN</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_IS_PUBLIC_API = "is_public_api"; + + /** + * The name of the column holding a bitmask of allowed network types. This is only used for + * public API downloads. + * <P>Type: INTEGER</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_ALLOWED_NETWORK_TYPES = "allowed_network_types"; + + /** + * The name of the column indicating whether roaming connections can be used. This is only + * used for public API downloads. + * <P>Type: BOOLEAN</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_ALLOW_ROAMING = "allow_roaming"; + + /** + * The name of the column indicating whether metered connections can be used. This is only + * used for public API downloads. + * <P>Type: BOOLEAN</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_ALLOW_METERED = "allow_metered"; + + /** + * Whether or not this download should be displayed in the system's Downloads UI. Defaults + * to true. + * <P>Type: INTEGER</P> + * <P>Owner can Init/Read</P> + */ + public static final String COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI = "is_visible_in_downloads_ui"; + + /** + * If true, the user has confirmed that this download can proceed over the mobile network + * even though it exceeds the recommended maximum size. + * <P>Type: BOOLEAN</P> + */ + public static final String COLUMN_BYPASS_RECOMMENDED_SIZE_LIMIT = + "bypass_recommended_size_limit"; + + /** + * Set to true if this download is deleted. It is completely removed from the database + * when MediaProvider database also deletes the metadata asociated with this downloaded + * file. + * <P>Type: BOOLEAN</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_DELETED = "deleted"; + + /** + * The URI to the corresponding entry in MediaProvider for this downloaded entry. It is + * used to delete the entries from MediaProvider database when it is deleted from the + * downloaded list. + * <P>Type: TEXT</P> + * <P>Owner can Read</P> + */ + public static final String COLUMN_MEDIAPROVIDER_URI = "mediaprovider_uri"; + + /** + * The column that is used to remember whether the media scanner was invoked. + * It can take the values: null or 0(not scanned), 1(scanned), 2 (not scannable). + * <P>Type: TEXT</P> + */ + public static final String COLUMN_MEDIA_SCANNED = "scanned"; + + /** + * The column with errorMsg for a failed downloaded. + * Used only for debugging purposes. + * <P>Type: TEXT</P> + */ + public static final String COLUMN_ERROR_MSG = "errorMsg"; + + /** + * This column stores the source of the last update to this row. + * This column is only for internal use. + * Valid values are indicated by LAST_UPDATESRC_* constants. + * <P>Type: INT</P> + */ + public static final String COLUMN_LAST_UPDATESRC = "lastUpdateSrc"; + + /** The column that is used to count retries */ + public static final String COLUMN_FAILED_CONNECTIONS = "numfailed"; + + /** + * default value for {@link #COLUMN_LAST_UPDATESRC}. + * This value is used when this column's value is not relevant. + */ + public static final int LAST_UPDATESRC_NOT_RELEVANT = 0; + + /** + * One of the values taken by {@link #COLUMN_LAST_UPDATESRC}. + * This value is used when the update is NOT to be relayed to the DownloadService + * (and thus spare DownloadService from scanning the database when this change occurs) + */ + public static final int LAST_UPDATESRC_DONT_NOTIFY_DOWNLOADSVC = 1; + + /* + * Lists the destinations that an application can specify for a download. + */ + + /** + * This download will be saved to the external storage. This is the + * default behavior, and should be used for any file that the user + * can freely access, copy, delete. Even with that destination, + * unencrypted DRM files are saved in secure internal storage. + * Downloads to the external destination only write files for which + * there is a registered handler. The resulting files are accessible + * by filename to all applications. + */ + public static final int DESTINATION_EXTERNAL = 0; + + /** + * This download will be saved to the download manager's private + * partition. This is the behavior used by applications that want to + * download private files that are used and deleted soon after they + * get downloaded. All file types are allowed, and only the initiating + * application can access the file (indirectly through a content + * provider). This requires the + * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED permission. + */ + public static final int DESTINATION_CACHE_PARTITION = 1; + + /** + * This download will be saved to the download manager's private + * partition and will be purged as necessary to make space. This is + * for private files (similar to CACHE_PARTITION) that aren't deleted + * immediately after they are used, and are kept around by the download + * manager as long as space is available. + */ + public static final int DESTINATION_CACHE_PARTITION_PURGEABLE = 2; + + /** + * This download will be saved to the download manager's private + * partition, as with DESTINATION_CACHE_PARTITION, but the download + * will not proceed if the user is on a roaming data connection. + */ + public static final int DESTINATION_CACHE_PARTITION_NOROAMING = 3; + + /** + * This download will be saved to the location given by the file URI in + * {@link #COLUMN_FILE_NAME_HINT}. + */ + public static final int DESTINATION_FILE_URI = 4; + + /** + * This download will be saved to the system cache ("/cache") + * partition. This option is only used by system apps and so it requires + * android.permission.ACCESS_CACHE_FILESYSTEM permission. + */ + public static final int DESTINATION_SYSTEMCACHE_PARTITION = 5; + + /** + * This download was completed by the caller (i.e., NOT downloadmanager) + * and caller wants to have this download displayed in Downloads App. + */ + public static final int DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD = 6; + + /** + * This download is allowed to run. + */ + public static final int CONTROL_RUN = 0; + + /** + * This download must pause at the first opportunity. + */ + public static final int CONTROL_PAUSED = 1; + + /* + * Lists the states that the download manager can set on a download + * to notify applications of the download progress. + * The codes follow the HTTP families:<br> + * 1xx: informational<br> + * 2xx: success<br> + * 3xx: redirects (not used by the download manager)<br> + * 4xx: client errors<br> + * 5xx: server errors + */ + + /** + * Returns whether the status is informational (i.e. 1xx). + */ + public static boolean isStatusInformational(int status) { + return (status >= 100 && status < 200); + } + + /** + * Returns whether the status is a success (i.e. 2xx). + */ + public static boolean isStatusSuccess(int status) { + return (status >= 200 && status < 300); + } + + /** + * Returns whether the status is an error (i.e. 4xx or 5xx). + */ + public static boolean isStatusError(int status) { + return (status >= 400 && status < 600); + } + + /** + * Returns whether the status is a client error (i.e. 4xx). + */ + public static boolean isStatusClientError(int status) { + return (status >= 400 && status < 500); + } + + /** + * Returns whether the status is a server error (i.e. 5xx). + */ + public static boolean isStatusServerError(int status) { + return (status >= 500 && status < 600); + } + + /** + * this method determines if a notification should be displayed for a + * given {@link #COLUMN_VISIBILITY} value + * @param visibility the value of {@link #COLUMN_VISIBILITY}. + * @return true if the notification should be displayed. false otherwise. + */ + public static boolean isNotificationToBeDisplayed(int visibility) { + return visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED || + visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION; + } + + /** + * Returns whether the download has completed (either with success or + * error). + */ + public static boolean isStatusCompleted(int status) { + return (status >= 200 && status < 300) || (status >= 400 && status < 600); + } + + /** + * This download hasn't stated yet + */ + public static final int STATUS_PENDING = 190; + + /** + * This download has started + */ + public static final int STATUS_RUNNING = 192; + + /** + * This download has been paused by the owning app. + */ + public static final int STATUS_PAUSED_BY_APP = 193; + + /** + * This download encountered some network error and is waiting before retrying the request. + */ + public static final int STATUS_WAITING_TO_RETRY = 194; + + /** + * This download is waiting for network connectivity to proceed. + */ + public static final int STATUS_WAITING_FOR_NETWORK = 195; + + /** + * This download exceeded a size limit for mobile networks and is waiting for a Wi-Fi + * connection to proceed. + */ + public static final int STATUS_QUEUED_FOR_WIFI = 196; + + /** + * This download couldn't be completed due to insufficient storage + * space. Typically, this is because the SD card is full. + */ + public static final int STATUS_INSUFFICIENT_SPACE_ERROR = 198; + + /** + * This download couldn't be completed because no external storage + * device was found. Typically, this is because the SD card is not + * mounted. + */ + public static final int STATUS_DEVICE_NOT_FOUND_ERROR = 199; + + /** + * This download has successfully completed. + * Warning: there might be other status values that indicate success + * in the future. + * Use isSucccess() to capture the entire category. + */ + public static final int STATUS_SUCCESS = 200; + + /** + * This request couldn't be parsed. This is also used when processing + * requests with unknown/unsupported URI schemes. + */ + public static final int STATUS_BAD_REQUEST = 400; + + /** + * This download can't be performed because the content type cannot be + * handled. + */ + public static final int STATUS_NOT_ACCEPTABLE = 406; + + /** + * This download cannot be performed because the length cannot be + * determined accurately. This is the code for the HTTP error "Length + * Required", which is typically used when making requests that require + * a content length but don't have one, and it is also used in the + * client when a response is received whose length cannot be determined + * accurately (therefore making it impossible to know when a download + * completes). + */ + public static final int STATUS_LENGTH_REQUIRED = 411; + + /** + * This download was interrupted and cannot be resumed. + * This is the code for the HTTP error "Precondition Failed", and it is + * also used in situations where the client doesn't have an ETag at all. + */ + public static final int STATUS_PRECONDITION_FAILED = 412; + + /** + * The lowest-valued error status that is not an actual HTTP status code. + */ + public static final int MIN_ARTIFICIAL_ERROR_STATUS = 488; + + /** + * The requested destination file already exists. + */ + public static final int STATUS_FILE_ALREADY_EXISTS_ERROR = 488; + + /** + * Some possibly transient error occurred, but we can't resume the download. + */ + public static final int STATUS_CANNOT_RESUME = 489; + + /** + * This download was canceled + */ + public static final int STATUS_CANCELED = 490; + + /** + * This download has completed with an error. + * Warning: there will be other status values that indicate errors in + * the future. Use isStatusError() to capture the entire category. + */ + public static final int STATUS_UNKNOWN_ERROR = 491; + + /** + * This download couldn't be completed because of a storage issue. + * Typically, that's because the filesystem is missing or full. + * Use the more specific {@link #STATUS_INSUFFICIENT_SPACE_ERROR} + * and {@link #STATUS_DEVICE_NOT_FOUND_ERROR} when appropriate. + */ + public static final int STATUS_FILE_ERROR = 492; + + /** + * This download couldn't be completed because of an HTTP + * redirect response that the download manager couldn't + * handle. + */ + public static final int STATUS_UNHANDLED_REDIRECT = 493; + + /** + * This download couldn't be completed because of an + * unspecified unhandled HTTP code. + */ + public static final int STATUS_UNHANDLED_HTTP_CODE = 494; + + /** + * This download couldn't be completed because of an + * error receiving or processing data at the HTTP level. + */ + public static final int STATUS_HTTP_DATA_ERROR = 495; + + /** + * This download couldn't be completed because of an + * HttpException while setting up the request. + */ + public static final int STATUS_HTTP_EXCEPTION = 496; + + /** + * This download couldn't be completed because there were + * too many redirects. + */ + public static final int STATUS_TOO_MANY_REDIRECTS = 497; + + /** + * This download has failed because requesting application has been + * blocked by {@link NetworkPolicyManager}. + * + * @hide + * @deprecated since behavior now uses + * {@link #STATUS_WAITING_FOR_NETWORK} + */ + @Deprecated + public static final int STATUS_BLOCKED = 498; + + /** {@hide} */ + public static String statusToString(int status) { + switch (status) { + case STATUS_PENDING: return "PENDING"; + case STATUS_RUNNING: return "RUNNING"; + case STATUS_PAUSED_BY_APP: return "PAUSED_BY_APP"; + case STATUS_WAITING_TO_RETRY: return "WAITING_TO_RETRY"; + case STATUS_WAITING_FOR_NETWORK: return "WAITING_FOR_NETWORK"; + case STATUS_QUEUED_FOR_WIFI: return "QUEUED_FOR_WIFI"; + case STATUS_INSUFFICIENT_SPACE_ERROR: return "INSUFFICIENT_SPACE_ERROR"; + case STATUS_DEVICE_NOT_FOUND_ERROR: return "DEVICE_NOT_FOUND_ERROR"; + case STATUS_SUCCESS: return "SUCCESS"; + case STATUS_BAD_REQUEST: return "BAD_REQUEST"; + case STATUS_NOT_ACCEPTABLE: return "NOT_ACCEPTABLE"; + case STATUS_LENGTH_REQUIRED: return "LENGTH_REQUIRED"; + case STATUS_PRECONDITION_FAILED: return "PRECONDITION_FAILED"; + case STATUS_FILE_ALREADY_EXISTS_ERROR: return "FILE_ALREADY_EXISTS_ERROR"; + case STATUS_CANNOT_RESUME: return "CANNOT_RESUME"; + case STATUS_CANCELED: return "CANCELED"; + case STATUS_UNKNOWN_ERROR: return "UNKNOWN_ERROR"; + case STATUS_FILE_ERROR: return "FILE_ERROR"; + case STATUS_UNHANDLED_REDIRECT: return "UNHANDLED_REDIRECT"; + case STATUS_UNHANDLED_HTTP_CODE: return "UNHANDLED_HTTP_CODE"; + case STATUS_HTTP_DATA_ERROR: return "HTTP_DATA_ERROR"; + case STATUS_HTTP_EXCEPTION: return "HTTP_EXCEPTION"; + case STATUS_TOO_MANY_REDIRECTS: return "TOO_MANY_REDIRECTS"; + case STATUS_BLOCKED: return "BLOCKED"; + default: return Integer.toString(status); + } + } + + /** + * This download is visible but only shows in the notifications + * while it's in progress. + */ + public static final int VISIBILITY_VISIBLE = DownloadManager.Request.VISIBILITY_VISIBLE; + + /** + * This download is visible and shows in the notifications while + * in progress and after completion. + */ + public static final int VISIBILITY_VISIBLE_NOTIFY_COMPLETED = + DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED; + + /** + * This download doesn't show in the UI or in the notifications. + */ + public static final int VISIBILITY_HIDDEN = DownloadManager.Request.VISIBILITY_HIDDEN; + + /** + * Constants related to HTTP request headers associated with each download. + */ + public static class RequestHeaders { + public static final String HEADERS_DB_TABLE = "request_headers"; + public static final String COLUMN_DOWNLOAD_ID = "download_id"; + public static final String COLUMN_HEADER = "header"; + public static final String COLUMN_VALUE = "value"; + + /** + * Path segment to add to a download URI to retrieve request headers + */ + public static final String URI_SEGMENT = "headers"; + + /** + * Prefix for ContentValues keys that contain HTTP header lines, to be passed to + * DownloadProvider.insert(). + */ + public static final String INSERT_KEY_PREFIX = "http_header_"; + } + } + + /** + * Query where clause for general querying. + */ + private static final String QUERY_WHERE_CLAUSE = Impl.COLUMN_NOTIFICATION_PACKAGE + "=? AND " + + Impl.COLUMN_NOTIFICATION_CLASS + "=?"; + + /** + * Delete all the downloads for a package/class pair. + */ + public static final void removeAllDownloadsByPackage( + Context context, String notificationPackage, String notificationClass) { + context.getContentResolver().delete(Impl.CONTENT_URI, QUERY_WHERE_CLAUSE, + new String[] { notificationPackage, notificationClass }); + } +} |