+/* ownCloud Android client application
+ * Copyright (C) 2012 Bartek Przybylski
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
package com.owncloud.android.files.services;
+import java.io.File;
import java.util.ArrayList;
import java.util.List;
-import com.owncloud.android.AccountUtils;
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.files.OwnCloudFileObserver.FileObserverStatusListener;
+import com.owncloud.android.operations.RemoteOperationResult;
+import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
+import com.owncloud.android.ui.activity.ConflictsResolveActivity;
+import com.owncloud.android.utils.FileStorageUtils;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.os.IBinder;
import android.util.Log;
-public class FileObserverService extends Service {
+public class FileObserverService extends Service implements FileObserverStatusListener {
public final static String KEY_FILE_CMD = "KEY_FILE_CMD";
- public final static String KEY_CMD_ARG = "KEY_CMD_ARG";
+ public final static String KEY_CMD_ARG_FILE = "KEY_CMD_ARG_FILE";
+ public final static String KEY_CMD_ARG_ACCOUNT = "KEY_CMD_ARG_ACCOUNT";
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 int CMD_ADD_DOWNLOADING_FILE = 4;
- private static String TAG = "FileObserverService";
+ private static String TAG = FileObserverService.class.getSimpleName();
private static List<OwnCloudFileObserver> mObservers;
private static List<DownloadCompletedReceiver> mDownloadReceivers;
private static Object mReceiverListLock = new Object();
@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.e(TAG, "No KEY_FILE_CMD argument given");
return Service.START_STICKY;
initializeObservedList();
break;
case CMD_ADD_OBSERVED_FILE:
- addObservedFile(intent.getStringExtra(KEY_CMD_ARG));
+ addObservedFile( (OCFile)intent.getParcelableExtra(KEY_CMD_ARG_FILE),
+ (Account)intent.getParcelableExtra(KEY_CMD_ARG_ACCOUNT));
break;
case CMD_DEL_OBSERVED_FILE:
- removeObservedFile(intent.getStringExtra(KEY_CMD_ARG));
+ removeObservedFile( (OCFile)intent.getParcelableExtra(KEY_CMD_ARG_FILE),
+ (Account)intent.getParcelableExtra(KEY_CMD_ARG_ACCOUNT));
+ break;
+ case CMD_ADD_DOWNLOADING_FILE:
+ addDownloadingFile( (OCFile)intent.getParcelableExtra(KEY_CMD_ARG_FILE),
+ (Account)intent.getParcelableExtra(KEY_CMD_ARG_ACCOUNT));
break;
default:
Log.wtf(TAG, "Incorrect key given");
return Service.START_STICKY;
}
-
+
private void initializeObservedList() {
if (mObservers != null) return; // nothing to do here
mObservers = new ArrayList<OwnCloudFileObserver>();
String path = c.getString(c.getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH));
OwnCloudFileObserver observer =
new OwnCloudFileObserver(path, OwnCloudFileObserver.CHANGES_ONLY);
- observer.setContext(getBaseContext());
+ observer.setContext(getApplicationContext());
observer.setAccount(account);
observer.setStorageManager(storage);
observer.setOCFile(storage.getFileByPath(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH))));
+ observer.addObserverStatusListener(this);
observer.startWatching();
mObservers.add(observer);
Log.d(TAG, "Started watching file " + path);
c.close();
}
- private void addObservedFile(String path) {
- if (path == null) return;
+ /**
+ * Registers the local copy of a remote file to be observed for local changes,
+ * an automatically updated in the ownCloud server.
+ *
+ * @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.e(TAG, "Trying to observe a NULL file");
+ return;
+ }
if (mObservers == null) {
// this is very rare case when service was killed by system
// and observers list was deleted in that procedure
initializeObservedList();
}
- boolean duplicate = false;
- OwnCloudFileObserver observer = null;
+ String localPath = file.getStoragePath();
+ if (!file.isDown()) {
+ // this is a file downloading / to be download for the first time
+ localPath = FileStorageUtils.getDefaultSavePathFor(account.name, file);
+ }
+ OwnCloudFileObserver tmpObserver = null, observer = null;
for (int i = 0; i < mObservers.size(); ++i) {
- observer = mObservers.get(i);
- if (observer.getPath().equals(path))
- duplicate = true;
- observer.setContext(getBaseContext());
- }
- if (duplicate) return;
- observer = new OwnCloudFileObserver(path, OwnCloudFileObserver.CHANGES_ONLY);
- observer.setContext(getBaseContext());
- Account account = AccountUtils.getCurrentOwnCloudAccount(getBaseContext());
- observer.setAccount(account);
- FileDataStorageManager storage =
- new FileDataStorageManager(account, getContentResolver());
- observer.setStorageManager(storage);
- observer.setOCFile(storage.getFileByLocalPath(path));
-
- DownloadCompletedReceiver receiver = new DownloadCompletedReceiver(path, observer);
- registerReceiver(receiver, new IntentFilter(FileDownloader.DOWNLOAD_FINISH_MESSAGE));
+ tmpObserver = mObservers.get(i);
+ if (tmpObserver.getPath().equals(localPath)) {
+ observer = tmpObserver;
+ }
+ tmpObserver.setContext(getApplicationContext()); // 'refreshing' context to all the observers? why?
+ }
+ if (observer == null) {
+ /// the local file was never registered to observe before
+ observer = new OwnCloudFileObserver(localPath, OwnCloudFileObserver.CHANGES_ONLY);
+ //Account account = AccountUtils.getCurrentOwnCloudAccount(getApplicationContext());
+ observer.setAccount(account);
+ FileDataStorageManager storage =
+ new FileDataStorageManager(account, getContentResolver()); // I don't trust in this resolver's life span...
+ observer.setStorageManager(storage);
+ //observer.setOCFile(storage.getFileByLocalPath(path)); // ISSUE 10 - the fix in FileDetailsFragment to avoid path == null was not enough; it the file was never down before, this sets a NULL OCFile in the observer
+ observer.setOCFile(file);
+ observer.addObserverStatusListener(this);
+ observer.setContext(getApplicationContext());
+
+ } else {
+ /* LET'S IGNORE THAT, CURRENTLY, A LOCAL FILE CAN BE LINKED TO DIFFERENT FILES IN OWNCLOUD;
+ * we should change that
+ *
+ /// the local file is already observed for some other OCFile(s)
+ observer.addOCFile(account, file); // OCFiles should have a reference to the account containing them to not be confused
+ */
+ }
mObservers.add(observer);
- Log.d(TAG, "Observer added for path " + path);
+ Log.d(TAG, "Observer added for path " + localPath);
+
+ if (!file.isDown()) {
+ // if the file is not down, it can't be observed for changes
+ DownloadCompletedReceiver receiver = new DownloadCompletedReceiver(localPath, observer);
+ registerReceiver(receiver, new IntentFilter(FileDownloader.DOWNLOAD_FINISH_MESSAGE));
+
+ } else {
+ observer.startWatching();
+ Log.d(TAG, "Started watching " + localPath);
+
+ }
+
}
+
- private void removeObservedFile(String path) {
- if (path == null) return;
+ /**
+ * Unregisters the local copy of a remote file to be observed for local changes.
+ *
+ * @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.e(TAG, "Trying to unobserve a NULL file");
+ return;
+ }
if (mObservers == null) {
initializeObservedList();
- return;
}
+ String localPath = file.getStoragePath();
+ if (!file.isDown()) {
+ // this happens when a file not in the device is set to be kept synchronized, and quickly unset again,
+ // while the download is not finished
+ localPath = FileStorageUtils.getDefaultSavePathFor(account.name, file);
+ }
+
for (int i = 0; i < mObservers.size(); ++i) {
OwnCloudFileObserver observer = mObservers.get(i);
- if (observer.getPath().equals(path)) {
+ if (observer.getPath().equals(localPath)) {
observer.stopWatching();
- mObservers.remove(i);
+ mObservers.remove(i); // assuming, again, that a local file can be only linked to only ONE remote file; currently false
+ if (!file.isDown()) {
+ // TODO unregister download receiver ;forget this until list of receivers is replaced for a single receiver
+ }
+ Log.d(TAG, "Stopped watching " + localPath);
+ break;
+ }
+ }
+
+ }
+
+
+ /**
+ * Temporarily disables the observance of a file that is going to be download.
+ *
+ * @param file Object representing the remote file which local copy must not be observed temporarily.
+ * @param account OwnCloud account containing file.
+ */
+ private void addDownloadingFile(OCFile file, Account account) {
+ OwnCloudFileObserver observer = null;
+ for (OwnCloudFileObserver o : mObservers) {
+ if (o.getRemotePath().equals(file.getRemotePath()) && o.getAccount().equals(account)) {
+ observer = o;
break;
}
}
- Log.d(TAG, "Stopped watching " + path);
+ if (observer == null) {
+ Log.e(TAG, "Couldn't find observer for remote file " + file.getRemotePath());
+ return;
+ }
+ observer.stopWatching();
+ DownloadCompletedReceiver dcr = new DownloadCompletedReceiver(observer.getPath(), observer);
+ registerReceiver(dcr, new IntentFilter(FileDownloader.DOWNLOAD_FINISH_MESSAGE));
}
+
private static void addReceiverToList(DownloadCompletedReceiver r) {
synchronized(mReceiverListLock) {
mDownloadReceivers.remove(r);
}
}
-
+
+ @Override
+ public void onObservedFileStatusUpdate(String localPath, String remotePath, Account account, RemoteOperationResult result) {
+ if (!result.isSuccess()) {
+ if (result.getCode() == ResultCode.SYNC_CONFLICT) {
+ // ISSUE 5: if the user is not running the app (this is a service!), this can be very intrusive; a notification should be preferred
+ Intent i = new Intent(getApplicationContext(), ConflictsResolveActivity.class);
+ i.setFlags(i.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
+ i.putExtra("remotepath", remotePath);
+ i.putExtra("localpath", localPath);
+ i.putExtra("account", account);
+ startActivity(i);
+
+ } else {
+ // TODO send notification to the notification bar?
+ }
+ } // else, nothing else to do; now it's duty of FileUploader service
+ }
+
private class DownloadCompletedReceiver extends BroadcastReceiver {
String mPath;
OwnCloudFileObserver mObserver;
@Override
public void onReceive(Context context, Intent intent) {
if (mPath.equals(intent.getStringExtra(FileDownloader.EXTRA_FILE_PATH))) {
- context.unregisterReceiver(this);
- removeReceiverFromList(this);
- mObserver.startWatching();
- Log.d(TAG, "Started watching " + mPath);
- return;
+ if ((new File(mPath)).exists()) {
+ // the download could be successful, or not; in both cases, the file could be down, due to a former download or upload
+ context.unregisterReceiver(this);
+ removeReceiverFromList(this);
+ mObserver.startWatching();
+ Log.d(TAG, "Started watching " + mPath);
+ return;
+ } // else - keep waiting for a future retry of the download ;
+ // mObserver.startWatching() won't ever work if the file is not in the device when it's called
}
}
projects / pub / Android / ownCloud.git / blobdiff