Improved performance when removing something

src/de/podfetcher/feed/FeedManager.java

@@ -108,7 +108,7 @@ public class FeedManager {
 	/** Remove a feed with all its items and media files and its image. */
 	public boolean deleteFeed(Context context, Feed feed) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
-
+		adapter.open();
 		// delete image file
 		if (feed.getImage() != null) {
 			if (feed.getImage().isDownloaded()
@@ -123,14 +123,16 @@ public class FeedManager {
 				unreadItems.remove(item);
 			}
 			if (queue.contains(item)) {
-				removeQueueItem(context, item);
+				removeQueueItem(item, adapter);
 			}
 			if (item.getMedia() != null && item.getMedia().isDownloaded()) {
 				File mediaFile = new File(item.getMedia().getFile_url());
 				mediaFile.delete();
 			}
 		}
+		
 		adapter.removeFeed(feed);
+		adapter.close();
 		return feeds.remove(feed);
 
 	}
@@ -176,15 +178,29 @@ public class FeedManager {
 		if (downloadLog.size() > DOWNLOAD_LOG_SIZE) {
 			adapter.removeDownloadStatus(downloadLog.remove(0));
 		}
-		return adapter.setDownloadStatus(status);
+		adapter.open();
+		long result = adapter.setDownloadStatus(status);
+		adapter.close();
+		return result;
 	}
 
 	public void addQueueItem(Context context, FeedItem item) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
 		queue.add(item);
+		adapter.open();
 		adapter.setQueue(queue);
+		adapter.close();
+	}
+	
+	/** Uses external adapter. */
+	public void removeQueueItem(FeedItem item, PodDBAdapter adapter) {
+		boolean removed = queue.remove(item);
+		if (removed) {
+			adapter.setQueue(queue);
+		}
 	}
 
+	/** Uses its own adapter. */
 	public void removeQueueItem(Context context, FeedItem item) {
 		boolean removed = queue.remove(item);
 		if (removed) {
@@ -203,10 +219,13 @@ public class FeedManager {
 
 	private void addNewFeed(Context context, Feed feed) {
 		feeds.add(feed);
-		feed.setId(setFeed(context, feed));
+		PodDBAdapter adapter = new PodDBAdapter(context);
+		adapter.open();
+		feed.setId(setFeed(feed, adapter));
 		for (FeedItem item : feed.getItems()) {
-			setFeedItem(context, item);
+			setFeedItem(item, adapter);
 		}
+		adapter.close();
 	}
 
 	/*
@@ -269,27 +288,79 @@ public class FeedManager {
 		return null;
 	}
 
-	/** Updates Information of an existing Feed */
+	/** Updates Information of an existing Feed. Uses external adapter. */
+	public long setFeed(Feed feed, PodDBAdapter adapter) {
+		if (adapter != null) {
+			return adapter.setFeed(feed);
+		} else {
+			Log.w(TAG, "Adapter in setFeed was null");
+			return 0;
+		}
+	}
+	
+	/** Updates Information of an existing Feeditem. Uses external adapter. */
+	public long setFeedItem(FeedItem item, PodDBAdapter adapter) {
+		if (adapter != null) {
+			return adapter.setFeedItem(item);
+		} else {
+			Log.w(TAG, "Adapter in setFeedItem was null");
+			return 0;
+		}
+	}
+	
+	/** Updates Information of an existing Feedimage. Uses external adapter. */
+	public long setFeedImage(FeedImage image, PodDBAdapter adapter) {
+		if (adapter != null) {
+			return adapter.setImage(image);
+		} else {
+			Log.w(TAG, "Adapter in setFeedImage was null");
+			return 0;
+		}
+	}
+	
+	/** Updates Information of an existing Feedmedia object. Uses external adapter. */
+	public long setFeedImage(FeedMedia media, PodDBAdapter adapter) {
+		if (adapter != null) {
+			return adapter.setMedia(media);
+		} else {
+			Log.w(TAG, "Adapter in setFeedMedia was null");
+			return 0;
+		}
+	}
+	
+	/** Updates Information of an existing Feed. Creates and opens its own adapter. */
 	public long setFeed(Context context, Feed feed) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
-		return adapter.setFeed(feed);
+		adapter.open();
+		long result = adapter.setFeed(feed);
+		adapter.close();
+		return result;
 	}
 
+	/** Updates information of an existing FeedItem. Creates and opens its own adapter.*/
 	public long setFeedItem(Context context, FeedItem item) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
-		return adapter.setFeedItem(item);
+		adapter.open();
+		long result = adapter.setFeedItem(item);
+		adapter.close();
+		return result;
 	}
 
-	/** Updates information of an existing FeedImage */
+	/** Updates information of an existing FeedImage. Creates and opens its own adapter. */
 	public long setFeedImage(Context context, FeedImage image) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
-		return adapter.setImage(image);
+		adapter.open();
+		long result = adapter.setImage(image);
+		adapter.close();
+		return result;
 	}
 
-	/** Updates information of an existing FeedMedia object. */
+	/** Updates information of an existing FeedMedia object. Creates and opens its own adapter. */
 	public long setFeedMedia(Context context, FeedMedia media) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
-		return adapter.setMedia(media);
+		adapter.open();
+		long result = adapter.setMedia(media);
+		return result;
 	}
 
 	/** Get a Feed by its id */

src/de/podfetcher/service/DownloadService.java

@@ -289,8 +289,8 @@ public class DownloadService extends Service {
 			sendDownloadHandledIntent(feed.getDownloadId(), statusId, hasImage, imageId);
 			feed.setDownloadId(0);
 			// Save information of feed in DB
-			manager.updateFeed(service, feed);	
+			manager.updateFeed(service, feed);
-			queryDownloads();
+			queryDownloads();	
 		}
 
 		/** Delete files that aren't needed anymore */

src/de/podfetcher/storage/PodDBAdapter.java

@@ -175,7 +175,6 @@ public class PodDBAdapter {
 		values.put(KEY_DOWNLOAD_URL, feed.getDownload_url());
 		values.put(KEY_DOWNLOADED, feed.isDownloaded());
 		values.put(KEY_LASTUPDATE, feed.getLastUpdate().getTime());
-		open();
 		if (feed.getId() == 0) {
 			// Create new entry
 			Log.d(this.toString(), "Inserting new Feed into db");
@@ -185,7 +184,6 @@ public class PodDBAdapter {
 			db.update(TABLE_NAME_FEEDS, values, KEY_ID + "=?",
 					new String[] { Long.toString(feed.getId()) });
 		}
-		close();
 		return feed.getId();
 	}
 
@@ -195,7 +193,6 @@ public class PodDBAdapter {
 	 * @return the id of the entry
 	 * */
 	public long setCategory(FeedCategory category) {
-		open();
 		ContentValues values = new ContentValues();
 		values.put(KEY_NAME, category.getName());
 		if (category.getId() == 0) {
@@ -205,7 +202,6 @@ public class PodDBAdapter {
 					new String[] { String.valueOf(category.getId()) });
 
 		}
-		close();
 		return category.getId();
 	}
 
@@ -215,7 +211,6 @@ public class PodDBAdapter {
 	 * @return the id of the entry
 	 * */
 	public long setImage(FeedImage image) {
-		open();
 		ContentValues values = new ContentValues();
 		values.put(KEY_TITLE, image.getTitle());
 		values.put(KEY_DOWNLOAD_URL, image.getDownload_url());
@@ -227,7 +222,6 @@ public class PodDBAdapter {
 			db.update(TABLE_NAME_FEED_IMAGES, values, KEY_ID + "=?",
 					new String[] { String.valueOf(image.getId()) });
 		}
-		close();
 		return image.getId();
 	}
 
@@ -237,7 +231,6 @@ public class PodDBAdapter {
 	 * @return the id of the entry
 	 */
 	public long setMedia(FeedMedia media) {
-		open();
 		ContentValues values = new ContentValues();
 		values.put(KEY_DURATION, media.getDuration());
 		values.put(KEY_POSITION, media.getPosition());
@@ -251,8 +244,7 @@ public class PodDBAdapter {
 		} else {
 			db.update(TABLE_NAME_FEED_MEDIA, values, KEY_ID + "=?",
 					new String[] { String.valueOf(media.getId()) });
-		}
+		}	
-		close();
 		return media.getId();
 	}
 
@@ -280,8 +272,7 @@ public class PodDBAdapter {
 		}
 		values.put(KEY_FEED, item.getFeed().getId());
 		values.put(KEY_READ, item.isRead());
-
+	
-		open();
 		if (item.getId() == 0) {
 			item.setId(db.insert(TABLE_NAME_FEED_ITEMS, null, values));
 		} else {
@@ -291,7 +282,6 @@ public class PodDBAdapter {
 		if (item.getSimpleChapters() != null) {
 			setSimpleChapters(item);
 		}	
-		close();
 		return item.getId();
 	}
 
@@ -328,20 +318,17 @@ public class PodDBAdapter {
 		values.put(KEY_REASON, status.getReason());
 		values.put(KEY_SUCCESSFUL, status.isSuccessful());
 		values.put(KEY_COMPLETION_DATE, status.getCompletionDate().getTime());
-		open();
 		if (status.getId() == 0) {
 			status.setId(db.insert(TABLE_NAME_DOWNLOAD_LOG, null, values));
 		} else {
 			db.update(TABLE_NAME_DOWNLOAD_LOG, values, KEY_ID + "=?",
 					new String[] { String.valueOf(status.getId()) });
 		}
-		close();
 		return status.getId();
 	}
 
 	public void setQueue(ArrayList<FeedItem> queue) {
 		ContentValues values = new ContentValues();
-		open();
 		db.delete(TABLE_NAME_QUEUE, null, null);
 		for (int i = 0; i < queue.size(); i++) {
 			FeedItem item = queue.get(i);
@@ -351,21 +338,16 @@ public class PodDBAdapter {
 			db.insertWithOnConflict(TABLE_NAME_QUEUE, null, values,
 					SQLiteDatabase.CONFLICT_REPLACE);
 		}
-		close();
 	}
 
 	public void removeFeedMedia(FeedMedia media) {
-		open();
 		db.delete(TABLE_NAME_FEED_MEDIA, KEY_ID + "=?",
 				new String[] { String.valueOf(media.getId()) });
-		close();
 	}
 
 	public void removeFeedImage(FeedImage image) {
-		open();
 		db.delete(TABLE_NAME_FEED_IMAGES, KEY_ID + "=?",
 				new String[] { String.valueOf(image.getId()) });
-		close();
 	}
 
 	/** Remove a FeedItem and its FeedMedia entry. */
@@ -373,10 +355,8 @@ public class PodDBAdapter {
 		if (item.getMedia() != null) {
 			removeFeedMedia(item.getMedia());
 		}
-		open();
 		db.delete(TABLE_NAME_FEED_ITEMS, KEY_ID + "=?",
 				new String[] { String.valueOf(item.getId()) });
-		close();
 	}
 
 	/** Remove a feed with all its FeedItems and Media entries. */
@@ -387,17 +367,13 @@ public class PodDBAdapter {
 		for (FeedItem item : feed.getItems()) {
 			removeFeedItem(item);
 		}
-		open();
 		db.delete(TABLE_NAME_FEEDS, KEY_ID + "=?",
 				new String[] { String.valueOf(feed.getId()) });
-		close();
 	}
 
 	public void removeDownloadStatus(DownloadStatus remove) {
-		open();
 		db.delete(TABLE_NAME_DOWNLOAD_LOG, KEY_ID + "=?",
 				new String[] { String.valueOf(remove.getId()) });
-		close();
 	}
 
 	/**