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author | H. Lehmann <ByteHamster@users.noreply.github.com> | 2020-05-24 22:42:29 +0200 |
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committer | GitHub <noreply@github.com> | 2020-05-24 22:42:29 +0200 |
commit | e0d1f5d529aa01aaaa01eeeea1d9d36a79ed1536 (patch) | |
tree | ad550b80dde1ebbbf9a3d1d172f212aab5afbbaf /core/src/main/java/de/danoeh | |
parent | 3ee3ba3f6e770d03791fa3f0ed68e09778291437 (diff) | |
parent | cc98447af95faf7f5d44130069edd0dbeeb2ae8c (diff) | |
download | AntennaPod-e0d1f5d529aa01aaaa01eeeea1d9d36a79ed1536.zip |
Merge pull request #4106 from malockin/export-favorites
Export favourites
Diffstat (limited to 'core/src/main/java/de/danoeh')
-rw-r--r-- | core/src/main/java/de/danoeh/antennapod/core/export/favorites/FavoritesWriter.java | 132 | ||||
-rw-r--r-- | core/src/main/java/de/danoeh/antennapod/core/export/html/HtmlWriter.java | 1 |
2 files changed, 133 insertions, 0 deletions
diff --git a/core/src/main/java/de/danoeh/antennapod/core/export/favorites/FavoritesWriter.java b/core/src/main/java/de/danoeh/antennapod/core/export/favorites/FavoritesWriter.java new file mode 100644 index 000000000..60c38a391 --- /dev/null +++ b/core/src/main/java/de/danoeh/antennapod/core/export/favorites/FavoritesWriter.java @@ -0,0 +1,132 @@ +package de.danoeh.antennapod.core.export.favorites; + +import android.content.Context; +import android.util.Log; + +import org.apache.commons.io.IOUtils; + +import java.io.IOException; +import java.io.InputStream; +import java.io.Writer; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.TreeMap; + +import de.danoeh.antennapod.core.export.ExportWriter; +import de.danoeh.antennapod.core.feed.Feed; +import de.danoeh.antennapod.core.feed.FeedItem; +import de.danoeh.antennapod.core.storage.DBReader; + +/** Writes saved favorites to file. */ +public class FavoritesWriter implements ExportWriter { + private static final String TAG = "FavoritesWriter"; + + private static final int PAGE_LIMIT = 100; + + private static final String FAVORITE_TEMPLATE = "html-export-favorites-item-template.html"; + private static final String FEED_TEMPLATE = "html-export-feed-template.html"; + private static final String UTF_8 = "UTF-8"; + + @Override + public void writeDocument(List<Feed> feeds, Writer writer, Context context) + throws IllegalArgumentException, IllegalStateException, IOException { + Log.d(TAG, "Starting to write document"); + + InputStream templateStream = context.getAssets().open("html-export-template.html"); + String template = IOUtils.toString(templateStream, UTF_8); + template = template.replaceAll("\\{TITLE\\}", "Favorites"); + String[] templateParts = template.split("\\{FEEDS\\}"); + + InputStream favTemplateStream = context.getAssets().open(FAVORITE_TEMPLATE); + String favTemplate = IOUtils.toString(favTemplateStream, UTF_8); + + InputStream feedTemplateStream = context.getAssets().open(FEED_TEMPLATE); + String feedTemplate = IOUtils.toString(feedTemplateStream, UTF_8); + + Map<Long, List<FeedItem>> favoriteByFeed = getFeedMap(getFavorites()); + + writer.append(templateParts[0]); + + for (Long feedId : favoriteByFeed.keySet()) { + List<FeedItem> favorites = favoriteByFeed.get(feedId); + writer.append("<li><div>\n"); + writeFeed(writer, favorites.get(0).getFeed(), feedTemplate); + + writer.append("<ul>\n"); + for (FeedItem item : favorites) { + writeFavoriteItem(writer, item, favTemplate); + } + writer.append("</ul></div></li>\n"); + } + + writer.append(templateParts[1]); + + Log.d(TAG, "Finished writing document"); + } + + private List<FeedItem> getFavorites() { + int page = 0; + + List<FeedItem> favoritesList = new ArrayList<>(); + List<FeedItem> favoritesPage; + do { + favoritesPage = DBReader.getFavoriteItemsList(page * PAGE_LIMIT, PAGE_LIMIT); + favoritesList.addAll(favoritesPage); + ++page; + } while (!favoritesPage.isEmpty() && favoritesPage.size() == PAGE_LIMIT); + + // sort in descending order + Collections.sort(favoritesList, (lhs, rhs) -> rhs.getPubDate().compareTo(lhs.getPubDate())); + + return favoritesList; + } + + /** + * Group favorite episodes by feed, sorting them by publishing date in descending order. + * + * @param favoritesList {@code List} of all favorite episodes. + * @return A {@code Map} favorite episodes, keyed by feed ID. + */ + private Map<Long, List<FeedItem>> getFeedMap(List<FeedItem> favoritesList) { + Map<Long, List<FeedItem>> feedMap = new TreeMap<>(); + + for (FeedItem item : favoritesList) { + List<FeedItem> feedEpisodes = feedMap.get(item.getFeedId()); + + if (feedEpisodes == null) { + feedEpisodes = new ArrayList<>(); + feedMap.put(item.getFeedId(), feedEpisodes); + } + + feedEpisodes.add(item); + } + + return feedMap; + } + + private void writeFeed(Writer writer, Feed feed, String feedTemplate) throws IOException { + String feedInfo = feedTemplate + .replace("{FEED_IMG}", feed.getImageUrl()) + .replace("{FEED_TITLE}", feed.getTitle()) + .replace("{FEED_LINK}", feed.getLink()) + .replace("{FEED_WEBSITE}", feed.getDownload_url()); + + writer.append(feedInfo); + } + + private void writeFavoriteItem(Writer writer, FeedItem item, String favoriteTemplate) throws IOException { + String favItem = favoriteTemplate + .replace("{FAV_TITLE}", item.getTitle().trim()) + .replace("{FAV_WEBSITE}", item.getLink()) + .replace("{FAV_MEDIA}", item.getMedia().getDownload_url()); + + writer.append(favItem); + } + + @Override + public String fileExtension() { + return "html"; + } +} diff --git a/core/src/main/java/de/danoeh/antennapod/core/export/html/HtmlWriter.java b/core/src/main/java/de/danoeh/antennapod/core/export/html/HtmlWriter.java index 93b66daed..3f34343ee 100644 --- a/core/src/main/java/de/danoeh/antennapod/core/export/html/HtmlWriter.java +++ b/core/src/main/java/de/danoeh/antennapod/core/export/html/HtmlWriter.java @@ -25,6 +25,7 @@ public class HtmlWriter implements ExportWriter { InputStream templateStream = context.getAssets().open("html-export-template.html"); String template = IOUtils.toString(templateStream, "UTF-8"); + template = template.replaceAll("\\{TITLE\\}", "Subscriptions"); String[] templateParts = template.split("\\{FEEDS\\}"); writer.append(templateParts[0]); |