X-Git-Url: http://git.linex4red.de/pub/Android/ownCloud.git/blobdiff_plain/f88f81e906629f244999bfe85fbfeec90985421e..7656cff3bbb92aefbbe01d59f746d5e7f3bd9445:/src/com/owncloud/android/files/services/FileObserverService.java diff --git a/src/com/owncloud/android/files/services/FileObserverService.java b/src/com/owncloud/android/files/services/FileObserverService.java deleted file mode 100644 index 8a63a6ee..00000000 --- a/src/com/owncloud/android/files/services/FileObserverService.java +++ /dev/null @@ -1,284 +0,0 @@ -/* ownCloud Android client application - * Copyright (C) 2012 Bartek Przybylski - * Copyright (C) 2012-2013 ownCloud Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - * - */ - -package com.owncloud.android.files.services; - -import java.io.File; -import java.util.HashMap; -import java.util.Map; - -import com.owncloud.android.Log_OC; -import com.owncloud.android.datamodel.FileDataStorageManager; -import com.owncloud.android.datamodel.OCFile; -import com.owncloud.android.db.ProviderMeta.ProviderTableMeta; -import com.owncloud.android.files.OwnCloudFileObserver; -import com.owncloud.android.operations.SynchronizeFileOperation; -import com.owncloud.android.utils.FileStorageUtils; - -import android.accounts.Account; -import android.accounts.AccountManager; -import android.app.Service; -import android.content.BroadcastReceiver; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.database.Cursor; -import android.os.Binder; -import android.os.IBinder; - -public class FileObserverService extends Service { - - public final static int CMD_INIT_OBSERVED_LIST = 1; - public final static int CMD_ADD_OBSERVED_FILE = 2; - public final static int CMD_DEL_OBSERVED_FILE = 3; - - public final static String KEY_FILE_CMD = "KEY_FILE_CMD"; - public final static String KEY_CMD_ARG_FILE = "KEY_CMD_ARG_FILE"; - public final static String KEY_CMD_ARG_ACCOUNT = "KEY_CMD_ARG_ACCOUNT"; - - private static String TAG = FileObserverService.class.getSimpleName(); - - private static Map mObserversMap; - private static DownloadCompletedReceiverBis mDownloadReceiver; - private IBinder mBinder = new LocalBinder(); - - private String mDownloadAddedMessage; - private String mDownloadFinishMessage; - - public class LocalBinder extends Binder { - FileObserverService getService() { - return FileObserverService.this; - } - } - - @Override - public void onCreate() { - super.onCreate(); - mDownloadReceiver = new DownloadCompletedReceiverBis(); - - FileDownloader downloader = new FileDownloader(); - mDownloadAddedMessage = downloader.getDownloadAddedMessage(); - mDownloadFinishMessage= downloader.getDownloadFinishMessage(); - - IntentFilter filter = new IntentFilter(); - filter.addAction(mDownloadAddedMessage); - filter.addAction(mDownloadFinishMessage); - registerReceiver(mDownloadReceiver, filter); - - mObserversMap = new HashMap(); - //initializeObservedList(); - } - - - @Override - public void onDestroy() { - super.onDestroy(); - unregisterReceiver(mDownloadReceiver); - mObserversMap = null; // TODO study carefully the life cycle of Services to grant the best possible observance - Log_OC.d(TAG, "Bye, bye"); - } - - - @Override - public IBinder onBind(Intent intent) { - return mBinder; - } - - @Override - public int onStartCommand(Intent intent, int flags, int startId) { - // this occurs when system tries to restart - // service, so we need to reinitialize observers - if (intent == null) { - initializeObservedList(); - return Service.START_STICKY; - } - - if (!intent.hasExtra(KEY_FILE_CMD)) { - Log_OC.e(TAG, "No KEY_FILE_CMD argument given"); - return Service.START_STICKY; - } - - switch (intent.getIntExtra(KEY_FILE_CMD, -1)) { - case CMD_INIT_OBSERVED_LIST: - initializeObservedList(); - break; - case CMD_ADD_OBSERVED_FILE: - addObservedFile( (OCFile)intent.getParcelableExtra(KEY_CMD_ARG_FILE), - (Account)intent.getParcelableExtra(KEY_CMD_ARG_ACCOUNT)); - break; - case CMD_DEL_OBSERVED_FILE: - removeObservedFile( (OCFile)intent.getParcelableExtra(KEY_CMD_ARG_FILE), - (Account)intent.getParcelableExtra(KEY_CMD_ARG_ACCOUNT)); - break; - default: - Log_OC.wtf(TAG, "Incorrect key given"); - } - - return Service.START_STICKY; - } - - - /** - * Read from the local database the list of files that must to be kept synchronized and - * starts file observers to monitor local changes on them - */ - private void initializeObservedList() { - mObserversMap.clear(); - Cursor c = getContentResolver().query( - ProviderTableMeta.CONTENT_URI, - null, - ProviderTableMeta.FILE_KEEP_IN_SYNC + " = ?", - new String[] {String.valueOf(1)}, - null); - if (c == null || !c.moveToFirst()) return; - AccountManager acm = AccountManager.get(this); - Account[] accounts = acm.getAccounts(); - do { - Account account = null; - for (Account a : accounts) - if (a.name.equals(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_ACCOUNT_OWNER)))) { - account = a; - break; - } - - if (account == null) continue; - FileDataStorageManager storage = - new FileDataStorageManager(account, getContentResolver()); - if (!storage.fileExists(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH)))) - continue; - - String path = c.getString(c.getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH)); - if (path == null || path.length() <= 0) - continue; - OwnCloudFileObserver observer = - new OwnCloudFileObserver( path, - account, - getApplicationContext(), - OwnCloudFileObserver.CHANGES_ONLY); - mObserversMap.put(path, observer); - if (new File(path).exists()) { - observer.startWatching(); - Log_OC.d(TAG, "Started watching file " + path); - } - - } while (c.moveToNext()); - c.close(); - } - - - /** - * Registers the local copy of a remote file to be observed for local changes, - * an automatically updated in the ownCloud server. - * - * This method does NOT perform a {@link SynchronizeFileOperation} over the file. - * - * TODO We are ignoring that, currently, a local file can be linked to different files - * in ownCloud if it's uploaded several times. That's something pending to update: we - * will avoid that the same local file is linked to different remote files. - * - * @param file Object representing a remote file which local copy must be observed. - * @param account OwnCloud account containing file. - */ - private void addObservedFile(OCFile file, Account account) { - if (file == null) { - Log_OC.e(TAG, "Trying to add a NULL file to observer"); - return; - } - String localPath = file.getStoragePath(); - if (localPath == null || localPath.length() <= 0) { // file downloading / to be download for the first time - localPath = FileStorageUtils.getDefaultSavePathFor(account.name, file); - } - OwnCloudFileObserver observer = mObserversMap.get(localPath); - if (observer == null) { - /// the local file was never registered to observe before - observer = new OwnCloudFileObserver( localPath, - account, - getApplicationContext(), - OwnCloudFileObserver.CHANGES_ONLY); - mObserversMap.put(localPath, observer); - Log_OC.d(TAG, "Observer added for path " + localPath); - - if (file.isDown()) { - observer.startWatching(); - Log_OC.d(TAG, "Started watching " + localPath); - } // else - the observance can't be started on a file not already down; mDownloadReceiver will get noticed when the download of the file finishes - } - - } - - - /** - * Unregisters the local copy of a remote file to be observed for local changes. - * - * Starts to watch it, if the file has a local copy to watch. - * - * TODO We are ignoring that, currently, a local file can be linked to different files - * in ownCloud if it's uploaded several times. That's something pending to update: we - * will avoid that the same local file is linked to different remote files. - * - * @param file Object representing a remote file which local copy must be not observed longer. - * @param account OwnCloud account containing file. - */ - private void removeObservedFile(OCFile file, Account account) { - if (file == null) { - Log_OC.e(TAG, "Trying to remove a NULL file"); - return; - } - String localPath = file.getStoragePath(); - if (localPath == null || localPath.length() <= 0) { - localPath = FileStorageUtils.getDefaultSavePathFor(account.name, file); - } - - OwnCloudFileObserver observer = mObserversMap.get(localPath); - if (observer != null) { - observer.stopWatching(); - mObserversMap.remove(observer); - Log_OC.d(TAG, "Stopped watching " + localPath); - } - - } - - - /** - * Private receiver listening to events broadcast by the FileDownloader service. - * - * Starts and stops the observance on registered files when they are being download, - * in order to avoid to start unnecessary synchronizations. - */ - private class DownloadCompletedReceiverBis extends BroadcastReceiver { - - @Override - public void onReceive(Context context, Intent intent) { - String downloadPath = intent.getStringExtra(FileDownloader.EXTRA_FILE_PATH); - OwnCloudFileObserver observer = mObserversMap.get(downloadPath); - if (observer != null) { - if (intent.getAction().equals(mDownloadFinishMessage) && - new File(downloadPath).exists()) { // the download could be successful. not; in both cases, the file could be down, due to a former download or upload - observer.startWatching(); - Log_OC.d(TAG, "Watching again " + downloadPath); - - } else if (intent.getAction().equals(mDownloadAddedMessage)) { - observer.stopWatching(); - Log_OC.d(TAG, "Disabling observance of " + downloadPath); - } - } - } - - } - -}