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Diffstat (limited to 'src/de/danoeh/antennapod/asynctask/DownloadObserver.java')
-rw-r--r--src/de/danoeh/antennapod/asynctask/DownloadObserver.java177
1 files changed, 0 insertions, 177 deletions
diff --git a/src/de/danoeh/antennapod/asynctask/DownloadObserver.java b/src/de/danoeh/antennapod/asynctask/DownloadObserver.java
deleted file mode 100644
index 21ae5291e..000000000
--- a/src/de/danoeh/antennapod/asynctask/DownloadObserver.java
+++ /dev/null
@@ -1,177 +0,0 @@
-package de.danoeh.antennapod.asynctask;
-
-import android.app.Activity;
-import android.content.*;
-import android.os.Handler;
-import android.os.IBinder;
-import android.util.Log;
-
-import org.apache.commons.lang3.Validate;
-
-import de.danoeh.antennapod.BuildConfig;
-import de.danoeh.antennapod.service.download.DownloadService;
-import de.danoeh.antennapod.service.download.Downloader;
-
-import java.util.List;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-/**
- * Provides access to the DownloadService's list of items that are currently being downloaded.
- * The DownloadObserver object should be created in the activity's onCreate() method. resume() and pause()
- * should be called in the activity's onResume() and onPause() methods
- */
-public class DownloadObserver {
- private static final String TAG = "DownloadObserver";
-
- /**
- * Time period between update notifications.
- */
- public static final int WAITING_INTERVAL_MS = 3000;
-
- private volatile Activity activity;
- private final Handler handler;
- private final Callback callback;
-
- private DownloadService downloadService = null;
- private AtomicBoolean mIsBound = new AtomicBoolean(false);
-
- private Thread refresherThread;
- private AtomicBoolean refresherThreadRunning = new AtomicBoolean(false);
-
-
- /**
- * Creates a new download observer.
- *
- * @param activity Used for registering receivers
- * @param handler All callback methods are executed on this handler. The handler MUST run on the GUI thread.
- * @param callback Callback methods for posting content updates
- * @throws java.lang.IllegalArgumentException if one of the arguments is null.
- */
- public DownloadObserver(Activity activity, Handler handler, Callback callback) {
- Validate.notNull(activity);
- Validate.notNull(handler);
- Validate.notNull(callback);
-
- this.activity = activity;
- this.handler = handler;
- this.callback = callback;
- }
-
- public void onResume() {
- if (BuildConfig.DEBUG) Log.d(TAG, "DownloadObserver resumed");
- activity.registerReceiver(contentChangedReceiver, new IntentFilter(DownloadService.ACTION_DOWNLOADS_CONTENT_CHANGED));
- connectToDownloadService();
- }
-
- public void onPause() {
- if (BuildConfig.DEBUG) Log.d(TAG, "DownloadObserver paused");
- try {
- activity.unregisterReceiver(contentChangedReceiver);
- } catch (IllegalArgumentException e) {
- e.printStackTrace();
- }
- try {
- activity.unbindService(mConnection);
- } catch (IllegalArgumentException e) {
- e.printStackTrace();
- }
- stopRefresher();
- }
-
- private BroadcastReceiver contentChangedReceiver = new BroadcastReceiver() {
- @Override
- public void onReceive(Context context, Intent intent) {
- // reconnect to DownloadService if connection has been closed
- if (downloadService == null) {
- connectToDownloadService();
- }
- callback.onContentChanged();
- startRefresher();
- }
- };
-
- public interface Callback {
- void onContentChanged();
-
- void onDownloadDataAvailable(List<Downloader> downloaderList);
- }
-
- private void connectToDownloadService() {
- activity.bindService(new Intent(activity, DownloadService.class), mConnection, 0);
- }
-
- private ServiceConnection mConnection = new ServiceConnection() {
- public void onServiceDisconnected(ComponentName className) {
- downloadService = null;
- mIsBound.set(false);
- stopRefresher();
- Log.i(TAG, "Closed connection with DownloadService.");
- }
-
- public void onServiceConnected(ComponentName name, IBinder service) {
- downloadService = ((DownloadService.LocalBinder) service)
- .getService();
- mIsBound.set(true);
- if (BuildConfig.DEBUG)
- Log.d(TAG, "Connection to service established");
- List<Downloader> downloaderList = downloadService.getDownloads();
- if (downloaderList != null && !downloaderList.isEmpty()) {
- callback.onDownloadDataAvailable(downloaderList);
- startRefresher();
- }
- }
- };
-
- private void stopRefresher() {
- if (refresherThread != null) {
- refresherThread.interrupt();
- }
- }
-
- private void startRefresher() {
- if (refresherThread == null || refresherThread.isInterrupted()) {
- refresherThread = new Thread(new RefresherThread());
- refresherThread.start();
- }
- }
-
- private class RefresherThread implements Runnable {
-
- public void run() {
- refresherThreadRunning.set(true);
- while (!Thread.interrupted()) {
- try {
- Thread.sleep(WAITING_INTERVAL_MS);
- } catch (InterruptedException e) {
- Log.d(TAG, "Refresher thread was interrupted");
- }
- if (mIsBound.get()) {
- postUpdate();
- }
- }
- refresherThreadRunning.set(false);
- }
-
- private void postUpdate() {
- handler.post(new Runnable() {
- @Override
- public void run() {
- callback.onContentChanged();
- if (downloadService != null) {
- List<Downloader> downloaderList = downloadService.getDownloads();
- if (downloaderList == null || downloaderList.isEmpty()) {
- Thread.currentThread().interrupt();
- }
- }
- }
- });
- }
- }
-
- public void setActivity(Activity activity) {
- Validate.notNull(activity);
- this.activity = activity;
- }
-
-}
-