/*
* 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_X_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 separate connectivity logging */
static final boolean LOGX = false;
/** Enable verbose logging - use with "setprop log.tag.DownloadManager VERBOSE" */
private static final boolean LOCAL_LOGV = false;
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;
}
|