+package com.owncloud.android.files.services;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.owncloud.android.AccountUtils;
+import com.owncloud.android.datamodel.FileDataStorageManager;
+import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
+import com.owncloud.android.files.OwnCloudFileObserver;
+
+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;
+import android.util.Log;
+
+public class FileObserverService extends Service {
+
+ public final static String KEY_FILE_CMD = "KEY_FILE_CMD";
+ public final static String KEY_CMD_ARG = "KEY_CMD_ARG";
+
+ 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;
+
+ private static String TAG = "FileObserverService";
+ private static List<OwnCloudFileObserver> mObservers;
+ private static List<DownloadCompletedReceiver> mDownloadReceivers;
+ private static Object mReceiverListLock = new Object();
+ private IBinder mBinder = new LocalBinder();
+
+ public class LocalBinder extends Binder {
+ FileObserverService getService() {
+ return FileObserverService.this;
+ }
+ }
+
+ @Override
+ public IBinder onBind(Intent intent) {
+ return mBinder;
+ }
+
+ @Override
+ public int onStartCommand(Intent intent, int flags, int startId) {
+ if (!intent.hasExtra(KEY_FILE_CMD)) {
+ Log.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(intent.getStringExtra(KEY_CMD_ARG));
+ break;
+ case CMD_DEL_OBSERVED_FILE:
+ removeObservedFile(intent.getStringExtra(KEY_CMD_ARG));
+ 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>();
+ mDownloadReceivers = new ArrayList<DownloadCompletedReceiver>();
+ Cursor c = getContentResolver().query(
+ ProviderTableMeta.CONTENT_URI,
+ null,
+ ProviderTableMeta.FILE_KEEP_IN_SYNC + " = ?",
+ new String[] {String.valueOf(1)},
+ null);
+ if (!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));
+ OwnCloudFileObserver observer =
+ new OwnCloudFileObserver(path, OwnCloudFileObserver.CHANGES_ONLY);
+ observer.setContext(getBaseContext());
+ observer.setAccount(account);
+ observer.setStorageManager(storage);
+ observer.setOCFile(storage.getFileByPath(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH))));
+ observer.startWatching();
+ mObservers.add(observer);
+ Log.d(TAG, "Started watching file " + path);
+
+ } while (c.moveToNext());
+ c.close();
+ }
+
+ private void addObservedFile(String path) {
+ if (path == null) 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;
+ 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));
+
+ mObservers.add(observer);
+ Log.d(TAG, "Observer added for path " + path);
+ }
+
+ private void removeObservedFile(String path) {
+ if (path == null) return;
+ if (mObservers == null) {
+ initializeObservedList();
+ return;
+ }
+ for (int i = 0; i < mObservers.size(); ++i) {
+ OwnCloudFileObserver observer = mObservers.get(i);
+ if (observer.getPath().equals(path)) {
+ observer.stopWatching();
+ mObservers.remove(i);
+ break;
+ }
+ }
+ Log.d(TAG, "Stopped watching " + path);
+ }
+
+ private static void addReceiverToList(DownloadCompletedReceiver r) {
+ synchronized(mReceiverListLock) {
+ mDownloadReceivers.add(r);
+ }
+ }
+
+ private static void removeReceiverFromList(DownloadCompletedReceiver r) {
+ synchronized(mReceiverListLock) {
+ mDownloadReceivers.remove(r);
+ }
+ }
+
+ private class DownloadCompletedReceiver extends BroadcastReceiver {
+ String mPath;
+ OwnCloudFileObserver mObserver;
+
+ public DownloadCompletedReceiver(String path, OwnCloudFileObserver observer) {
+ mPath = path;
+ mObserver = observer;
+ addReceiverToList(this);
+ }
+
+ @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;
+ }
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (o instanceof DownloadCompletedReceiver)
+ return mPath.equals(((DownloadCompletedReceiver)o).mPath);
+ return super.equals(o);
+ }
+ }
+}
projects / pub / Android / ownCloud.git / commitdiff