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Diffstat (limited to 'src/com/android/providers/downloads/Constants.java')
| -rw-r--r-- | src/com/android/providers/downloads/Constants.java | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/com/android/providers/downloads/Constants.java b/src/com/android/providers/downloads/Constants.java new file mode 100644 index 00000000..cffda04a --- /dev/null +++ b/src/com/android/providers/downloads/Constants.java @@ -0,0 +1,151 @@ +/* + * 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.providers.downloads; + +import android.util.Config; +import android.util.Log; + +/** + * Contains the internal constants that are used in the download manager. + * As a general rule, modifying these constants should be done with care. + */ +public class Constants { + + /** Tag used for debugging/logging */ + public static final String TAG = "DownloadManager"; + + /** The column that used to be used for the HTTP method of the request */ + public static final String RETRY_AFTER___REDIRECT_COUNT = "method"; + + /** The column that used to be used for the magic OTA update filename */ + public static final String OTA_UPDATE = "otaupdate"; + + /** The column that used to be used to reject system filetypes */ + public static final String NO_SYSTEM_FILES = "no_system"; + + /** The column that is used for the downloads's ETag */ + public static final String ETAG = "etag"; + + /** The column that is used for the initiating app's UID */ + public static final String UID = "uid"; + + /** The column that is used to remember whether the media scanner was invoked */ + public static final String MEDIA_SCANNED = "scanned"; + + /** The column that is used to count retries */ + public static final String FAILED_CONNECTIONS = "numfailed"; + + /** The intent that gets sent when the service must wake up for a retry */ + public static final String ACTION_RETRY = "android.intent.action.DOWNLOAD_WAKEUP"; + + /** the intent that gets sent when clicking a successful download */ + public static final String ACTION_OPEN = "android.intent.action.DOWNLOAD_OPEN"; + + /** the intent that gets sent when clicking an incomplete/failed download */ + public static final String ACTION_LIST = "android.intent.action.DOWNLOAD_LIST"; + + /** the intent that gets sent when deleting the notification of a completed download */ + public static final String ACTION_HIDE = "android.intent.action.DOWNLOAD_HIDE"; + + /** The default base name for downloaded files if we can't get one at the HTTP level */ + public static final String DEFAULT_DL_FILENAME = "downloadfile"; + + /** The default extension for html files if we can't get one at the HTTP level */ + public static final String DEFAULT_DL_HTML_EXTENSION = ".html"; + + /** The default extension for text files if we can't get one at the HTTP level */ + public static final String DEFAULT_DL_TEXT_EXTENSION = ".txt"; + + /** The default extension for binary files if we can't get one at the HTTP level */ + public static final String DEFAULT_DL_BINARY_EXTENSION = ".bin"; + + /** + * When a number has to be appended to the filename, this string is used to separate the + * base filename from the sequence number + */ + public static final String FILENAME_SEQUENCE_SEPARATOR = "-"; + + /** Where we store downloaded files on the external storage */ + public static final String DEFAULT_DL_SUBDIR = "/download"; + + /** A magic filename that is allowed to exist within the system cache */ + public static final String KNOWN_SPURIOUS_FILENAME = "lost+found"; + + /** A magic filename that is allowed to exist within the system cache */ + public static final String RECOVERY_DIRECTORY = "recovery"; + + /** The default user agent used for downloads */ + public static final String DEFAULT_USER_AGENT = "AndroidDownloadManager"; + + /** The MIME type of special DRM files */ + public static final String MIMETYPE_DRM_MESSAGE = + android.drm.mobile1.DrmRawContent.DRM_MIMETYPE_MESSAGE_STRING; + + /** The MIME type of APKs */ + public static final String MIMETYPE_APK = "application/vnd.android.package"; + + /** The buffer size used to stream the data */ + public static final int BUFFER_SIZE = 4096; + + /** The minimum amount of progress that has to be done before the progress bar gets updated */ + public static final int MIN_PROGRESS_STEP = 4096; + + /** The minimum amount of time that has to elapse before the progress bar gets updated, in ms */ + public static final long MIN_PROGRESS_TIME = 1500; + + /** The maximum number of rows in the database (FIFO) */ + public static final int MAX_DOWNLOADS = 1000; + + /** + * The number of times that the download manager will retry its network + * operations when no progress is happening before it gives up. + */ + public static final int MAX_RETRIES = 5; + + /** + * The minimum amount of time that the download manager accepts for + * a Retry-After response header with a parameter in delta-seconds. + */ + public static final int MIN_RETRY_AFTER = 30; // 30s + + /** + * The maximum amount of time that the download manager accepts for + * a Retry-After response header with a parameter in delta-seconds. + */ + public static final int MAX_RETRY_AFTER = 24 * 60 * 60; // 24h + + /** + * The maximum number of redirects. + */ + public static final int MAX_REDIRECTS = 5; // can't be more than 7. + + /** + * The time between a failure and the first retry after an IOException. + * Each subsequent retry grows exponentially, doubling each time. + * The time is in seconds. + */ + public static final int RETRY_FIRST_DELAY = 30; + + /** Enable verbose logging - use with "setprop log.tag.DownloadManager VERBOSE" */ + private static final boolean LOCAL_LOGV = true; + public static final boolean LOGV = Config.LOGV + || (Config.LOGD && LOCAL_LOGV && Log.isLoggable(TAG, Log.VERBOSE)); + + /** Enable super-verbose logging */ + private static final boolean LOCAL_LOGVV = false; + public static final boolean LOGVV = LOCAL_LOGVV && LOGV; +} |