Implemented refresh, auto-download, auto-cleanup methods
This commit is contained in:
daniel oeh
parent
a704a33e2b
commit
c6545a5643
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@ -48,6 +48,26 @@ public final class DBReader {
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return feeds;
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}
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static List<Feed> getExpiredFeedsList(final Context context, final long expirationTime) {
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if (AppConfig.DEBUG)
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Log.d(TAG, String.format("getExpiredFeedsList(%d)", expirationTime));
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PodDBAdapter adapter = new PodDBAdapter(context);
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adapter.open();
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Cursor feedlistCursor = adapter.getExpiredFeedsCursor(expirationTime);
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List<Feed> feeds = new ArrayList<Feed>(feedlistCursor.getCount());
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if (feedlistCursor.moveToFirst()) {
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do {
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Feed feed = extractFeedFromCursorRow(adapter, feedlistCursor);
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feeds.add(feed);
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} while (feedlistCursor.moveToNext());
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}
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feedlistCursor.close();
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return feeds;
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}
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public static void loadFeedDataOfFeedItemlist(Context context,
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List<FeedItem> items) {
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List<Feed> feeds = getFeedList(context);
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@ -272,6 +292,25 @@ public final class DBReader {
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return items;
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}
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public static List<FeedItem> getDownloadedItems(Context context) {
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if (AppConfig.DEBUG)
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Log.d(TAG, "Extracting downloaded items");
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PodDBAdapter adapter = new PodDBAdapter(context);
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adapter.open();
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Cursor itemlistCursor = adapter.getDownloadedItemsCursor();
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List<FeedItem> items = extractItemlistFromCursor(adapter,
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itemlistCursor);
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itemlistCursor.close();
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loadFeedDataOfFeedItemlist(context, items);
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Collections.sort(items, new FeedItemPubdateComparator());
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adapter.close();
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return items;
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}
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public static List<FeedItem> getUnreadItemsList(Context context) {
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if (AppConfig.DEBUG)
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Log.d(TAG, "Extracting unread items list");
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@ -411,6 +450,14 @@ public final class DBReader {
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}
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public static int getNumberOfDownloadedEpisodes(final Context context) {
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PodDBAdapter adapter = new PodDBAdapter(context);
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adapter.open();
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final int result = adapter.getNumberOfDownloadedEpisodes();
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adapter.close();
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return result;
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}
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/**
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* Searches the DB for a FeedImage of the given id.
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*
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@ -1,16 +1,28 @@
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package de.danoeh.antennapod.storage;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.Iterator;
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import java.util.List;
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import java.util.concurrent.locks.ReentrantLock;
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import android.content.Context;
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import android.content.Intent;
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import android.util.Log;
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import de.danoeh.antennapod.AppConfig;
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import de.danoeh.antennapod.feed.EventDistributor;
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import de.danoeh.antennapod.feed.Feed;
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import de.danoeh.antennapod.feed.FeedImage;
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import de.danoeh.antennapod.feed.FeedItem;
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import de.danoeh.antennapod.feed.FeedMedia;
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import de.danoeh.antennapod.preferences.UserPreferences;
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import de.danoeh.antennapod.service.PlaybackService;
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import de.danoeh.antennapod.service.download.DownloadStatus;
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import de.danoeh.antennapod.util.DownloadError;
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import de.danoeh.antennapod.util.NetworkUtils;
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import de.danoeh.antennapod.util.exception.MediaFileNotFoundException;
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public final class DBTasks {
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@ -55,47 +67,308 @@ public final class DBTasks {
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}
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}
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public static void refreshAllFeeds(final Context context) {
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private static ReentrantLock refreshAllFeedsLock = new ReentrantLock();
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public static void refreshAllFeeds(final Context context,
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final List<Feed> feeds) {
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if (refreshAllFeedsLock.tryLock()) {
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new Thread() {
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public void run() {
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refreshFeeds(context, feeds);
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refreshAllFeedsLock.unlock();
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}
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}.start();
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} else {
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if (AppConfig.DEBUG)
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Log.d(TAG,
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"Ignoring request to refresh all feeds: Refresh lock is locked");
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}
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}
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public void refreshExpiredFeeds(final Context context) {
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if (AppConfig.DEBUG)
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Log.d(TAG, "Refreshing expired feeds");
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new Thread() {
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public void run() {
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long millis = UserPreferences.getUpdateInterval();
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if (millis > 0) {
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long now = Calendar.getInstance().getTime().getTime();
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// Allow a 10 minute window
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millis -= 10 * 60 * 1000;
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List<Feed> feedList = DBReader.getExpiredFeedsList(context,
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now - millis);
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if (feedList.size() > 0) {
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refreshFeeds(context, feedList);
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}
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}
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}
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}.start();
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}
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private static void refreshFeeds(final Context context,
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final List<Feed> feedList) {
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for (Feed feed : feedList) {
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try {
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refreshFeed(context, feed);
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} catch (DownloadRequestException e) {
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e.printStackTrace();
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DBWriter.addDownloadStatus(
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context,
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new DownloadStatus(feed, feed
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.getHumanReadableIdentifier(),
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DownloadError.ERROR_REQUEST_ERROR, false, e
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.getMessage()));
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}
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}
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}
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/** Updates a specific feed. */
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private static void refreshFeed(Context context, Feed feed)
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throws DownloadRequestException {
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DownloadRequester.getInstance().downloadFeed(context,
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new Feed(feed.getDownload_url(), new Date(), feed.getTitle()));
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}
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public static void notifyInvalidImageFile(final Context context,
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final long imageId) {
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final FeedImage image) {
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Log.i(TAG,
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"The feedmanager was notified about an invalid image download. It will now try to redownload the image file");
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try {
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DownloadRequester.getInstance().downloadImage(context, image);
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} catch (DownloadRequestException e) {
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e.printStackTrace();
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Log.w(TAG, "Failed to download invalid feed image");
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}
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}
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public static void notifyMissingFeedMediaFile(final Context context,
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final FeedMedia media) {
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Log.i(TAG,
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"The feedmanager was notified about a missing episode. It will update its database now.");
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media.setDownloaded(false);
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media.setFile_url(null);
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DBWriter.setFeedMedia(context, media);
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EventDistributor.getInstance().sendFeedUpdateBroadcast();
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}
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public static void downloadAllItemsInQueue(final Context context) {
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new Thread() {
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public void run() {
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List<FeedItem> queue = DBReader.getQueue(context);
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if (!queue.isEmpty()) {
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try {
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downloadFeedItems(context,
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queue.toArray(new FeedItem[queue.size()]));
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} catch (DownloadRequestException e) {
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e.printStackTrace();
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}
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}
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}
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}.start();
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}
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public static void refreshFeed(final Context context, final long feedId) {
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public static void downloadFeedItems(final Context context,
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FeedItem... items) throws DownloadRequestException {
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downloadFeedItems(true, context, items);
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}
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public static void downloadFeedItem(final Context context, long... itemIds) {
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}
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static void downloadFeedItem(boolean performAutoCleanup,
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final Context context, final long... itemIds)
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private static void downloadFeedItems(boolean performAutoCleanup,
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final Context context, final FeedItem... items)
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throws DownloadRequestException {
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final DownloadRequester requester = DownloadRequester.getInstance();
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if (performAutoCleanup) {
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new Thread() {
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@Override
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public void run() {
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performAutoCleanup(context,
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getPerformAutoCleanupArgs(context, items.length));
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}
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public static void autodownloadUndownloadedItems(Context context) {
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}.start();
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}
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for (FeedItem item : items) {
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if (item.getMedia() != null
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&& !requester.isDownloadingFile(item.getMedia())
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&& !item.getMedia().isDownloaded()) {
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if (items.length > 1) {
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try {
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requester.downloadMedia(context, item.getMedia());
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} catch (DownloadRequestException e) {
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e.printStackTrace();
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DBWriter.addDownloadStatus(context,
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new DownloadStatus(item.getMedia(), item
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.getMedia()
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.getHumanReadableIdentifier(),
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DownloadError.ERROR_REQUEST_ERROR,
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false, e.getMessage()));
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}
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} else {
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requester.downloadMedia(context, item.getMedia());
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}
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}
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}
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}
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private static int getPerformAutoCleanupArgs(final int episodeNumber) {
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private static int getNumberOfUndownloadedEpisodes(
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final List<FeedItem> queue, final List<FeedItem> unreadItems) {
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int counter = 0;
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for (FeedItem item : queue) {
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if (item.hasMedia() && !item.getMedia().isDownloaded()
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&& !item.getMedia().isPlaying()) {
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counter++;
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}
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}
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for (FeedItem item : unreadItems) {
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if (item.hasMedia() && !item.getMedia().isDownloaded()) {
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counter++;
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}
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}
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return counter;
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}
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public static void autodownloadUndownloadedItems(final Context context) {
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if (AppConfig.DEBUG)
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Log.d(TAG, "Performing auto-dl of undownloaded episodes");
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if (NetworkUtils.autodownloadNetworkAvailable(context)
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&& UserPreferences.isEnableAutodownload()) {
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final List<FeedItem> queue = DBReader.getQueue(context);
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final List<FeedItem> unreadItems = DBReader
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.getUnreadItemsList(context);
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int undownloadedEpisodes = getNumberOfUndownloadedEpisodes(queue,
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unreadItems);
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int downloadedEpisodes = DBReader
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.getNumberOfDownloadedEpisodes(context);
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int deletedEpisodes = performAutoCleanup(context,
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getPerformAutoCleanupArgs(context, undownloadedEpisodes));
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int episodeSpaceLeft = undownloadedEpisodes;
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boolean cacheIsUnlimited = UserPreferences.getEpisodeCacheSize() == UserPreferences
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.getEpisodeCacheSizeUnlimited();
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if (!cacheIsUnlimited
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&& UserPreferences.getEpisodeCacheSize() < downloadedEpisodes
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+ undownloadedEpisodes) {
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episodeSpaceLeft = UserPreferences.getEpisodeCacheSize()
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- (downloadedEpisodes - deletedEpisodes);
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}
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List<FeedItem> itemsToDownload = new ArrayList<FeedItem>();
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if (episodeSpaceLeft > 0 && undownloadedEpisodes > 0) {
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for (int i = 0; i < queue.size(); i++) { // ignore playing item
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FeedItem item = queue.get(i);
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if (item.hasMedia() && !item.getMedia().isDownloaded()
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&& !item.getMedia().isPlaying()) {
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itemsToDownload.add(item);
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episodeSpaceLeft--;
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undownloadedEpisodes--;
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if (episodeSpaceLeft == 0 || undownloadedEpisodes == 0) {
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break;
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}
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}
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}
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}
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if (episodeSpaceLeft > 0 && undownloadedEpisodes > 0) {
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for (FeedItem item : unreadItems) {
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if (item.hasMedia() && !item.getMedia().isDownloaded()) {
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itemsToDownload.add(item);
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episodeSpaceLeft--;
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undownloadedEpisodes--;
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if (episodeSpaceLeft == 0 || undownloadedEpisodes == 0) {
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break;
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}
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}
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}
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}
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if (AppConfig.DEBUG)
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Log.d(TAG, "Enqueueing " + itemsToDownload.size()
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+ " items for download");
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try {
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downloadFeedItems(false, context,
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itemsToDownload.toArray(new FeedItem[itemsToDownload
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.size()]));
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} catch (DownloadRequestException e) {
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e.printStackTrace();
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}
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}
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}
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private static int getPerformAutoCleanupArgs(Context context,
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final int episodeNumber) {
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if (episodeNumber >= 0
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&& UserPreferences.getEpisodeCacheSize() != UserPreferences
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.getEpisodeCacheSizeUnlimited()) {
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int downloadedEpisodes = DBReader
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.getNumberOfDownloadedEpisodes(context);
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if (downloadedEpisodes + episodeNumber >= UserPreferences
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.getEpisodeCacheSize()) {
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return downloadedEpisodes + episodeNumber
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- UserPreferences.getEpisodeCacheSize();
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}
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}
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return 0;
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}
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public static void performAutoCleanup(final Context context) {
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performAutoCleanup(context, getPerformAutoCleanupArgs(context, 0));
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}
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private static int performAutoCleanup(final Context context,
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final int episodeNumber) {
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return 0;
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List<FeedItem> candidates = DBReader.getDownloadedItems(context);
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List<FeedItem> queue = DBReader.getQueue(context);
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List<FeedItem> delete;
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for (FeedItem item : candidates) {
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if (item.hasMedia() && item.getMedia().isDownloaded()
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&& !queue.contains(item) && item.isRead()) {
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candidates.add(item);
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}
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}
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Collections.sort(candidates, new Comparator<FeedItem>() {
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@Override
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public int compare(FeedItem lhs, FeedItem rhs) {
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Date l = lhs.getMedia().getPlaybackCompletionDate();
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Date r = rhs.getMedia().getPlaybackCompletionDate();
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if (l == null) {
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l = new Date(0);
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}
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if (r == null) {
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r = new Date(0);
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}
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return l.compareTo(r);
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}
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});
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if (candidates.size() > episodeNumber) {
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delete = candidates.subList(0, episodeNumber);
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} else {
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delete = candidates;
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}
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for (FeedItem item : delete) {
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DBWriter.deleteFeedMediaOfItem(context, item.getId());
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}
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int counter = delete.size();
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if (AppConfig.DEBUG)
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Log.d(TAG, String.format(
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"Auto-delete deleted %d episodes (%d requested)", counter,
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episodeNumber));
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return counter;
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}
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public static void enqueueAllNewItems(final Context context) {
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@ -144,8 +417,8 @@ public final class DBTasks {
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return null;
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}
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public static synchronized Feed updateFeed(final Context context, final Feed newFeed) {
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public static synchronized Feed updateFeed(final Context context,
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final Feed newFeed) {
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// Look up feed in the feedslist
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final Feed savedFeed = searchFeedByIdentifyingValue(context,
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newFeed.getIdentifyingValue());
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@ -506,7 +506,7 @@ public class DBWriter {
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}
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private static void setFeedMedia(final Context context,
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static void setFeedMedia(final Context context,
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final FeedMedia media) {
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dbExec.submit(new Runnable() {
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@ -10,6 +10,7 @@ import android.database.DatabaseUtils;
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import android.database.MergeCursor;
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import android.database.SQLException;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteStatement;
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import android.database.sqlite.SQLiteDatabase.CursorFactory;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.util.Log;
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@ -574,6 +575,14 @@ public class PodDBAdapter {
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return c;
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}
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public final Cursor getExpiredFeedsCursor(long expirationTime) {
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open();
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Cursor c = db.query(TABLE_NAME_FEEDS, null, "?<?", new String[] {
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KEY_LASTUPDATE, Long.toString(expirationTime) }, null, null,
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null);
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return c;
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}
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/**
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* Returns a cursor with all FeedItems of a Feed. Uses SEL_FI_SMALL
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*
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@ -680,6 +689,17 @@ public class PodDBAdapter {
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}
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public Cursor getDownloadedItemsCursor() {
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open();
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Cursor c = db.rawQuery("SELECT ? FROM " + TABLE_NAME_FEED_ITEMS
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+ "FULL JOIN " + TABLE_NAME_FEED_MEDIA + " ON "
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+ TABLE_NAME_FEED_ITEMS + "." + KEY_ID + "="
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+ TABLE_NAME_FEED_MEDIA + "." + KEY_ID + " WHERE "
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+ TABLE_NAME_FEED_MEDIA + "." + KEY_DOWNLOADED + ">0",
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SEL_FI_SMALL);
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return c;
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}
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/**
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* Returns a cursor which contains feed media objects with a playback
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* completion date in descending order.
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@ -766,6 +786,16 @@ public class PodDBAdapter {
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}
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public final int getNumberOfDownloadedEpisodes() {
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Cursor c = db.rawQuery(
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"SELECT COUNT(DISTINCT ?) AS count FROM ? WHERE ?>0",
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new String[] { KEY_ID, TABLE_NAME_FEED_MEDIA, KEY_DOWNLOADED });
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final int result = c.getInt(0);
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c.close();
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return result;
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}
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/**
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* Uses DatabaseUtils to escape a search query and removes ' at the
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* beginning and the end of the string returned by the escape method.
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