From 08397a47af403d64a012a7961e7444254ccaa9a2 Mon Sep 17 00:00:00 2001 From: Andrew Dolgov Date: Tue, 19 Jun 2012 14:18:00 +0400 Subject: categorize source files --- .../fox/ttrss/offline/OfflineDownloadService.java | 361 +++++++++++++++++++++ 1 file changed, 361 insertions(+) create mode 100644 src/org/fox/ttrss/offline/OfflineDownloadService.java (limited to 'src/org/fox/ttrss/offline/OfflineDownloadService.java') diff --git a/src/org/fox/ttrss/offline/OfflineDownloadService.java b/src/org/fox/ttrss/offline/OfflineDownloadService.java new file mode 100644 index 00000000..f9dc0bc1 --- /dev/null +++ b/src/org/fox/ttrss/offline/OfflineDownloadService.java @@ -0,0 +1,361 @@ +package org.fox.ttrss.offline; + +import java.lang.reflect.Type; +import java.util.HashMap; +import java.util.List; + +import org.fox.ttrss.ApiRequest; +import org.fox.ttrss.MainActivity; +import org.fox.ttrss.R; +import org.fox.ttrss.R.drawable; +import org.fox.ttrss.R.string; +import org.fox.ttrss.types.Article; +import org.fox.ttrss.types.Feed; +import org.fox.ttrss.util.DatabaseHelper; +import org.fox.ttrss.util.ImageCacheService; +import org.jsoup.Jsoup; +import org.jsoup.nodes.Document; +import org.jsoup.nodes.Element; +import org.jsoup.select.Elements; + +import android.app.ActivityManager; +import android.app.ActivityManager.RunningServiceInfo; +import android.app.IntentService; +import android.app.Notification; +import android.app.NotificationManager; +import android.app.PendingIntent; +import android.content.Context; +import android.content.Intent; +import android.content.SharedPreferences; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteStatement; +import android.os.Bundle; +import android.os.Environment; +import android.preference.PreferenceManager; +import android.provider.BaseColumns; +import android.util.Log; + +import com.google.gson.Gson; +import com.google.gson.JsonElement; +import com.google.gson.reflect.TypeToken; + +public class OfflineDownloadService extends IntentService { + + private final String TAG = this.getClass().getSimpleName(); + + public static final int NOTIFY_DOWNLOADING = 1; + public static final String INTENT_ACTION_SUCCESS = "org.fox.ttrss.intent.action.DownloadComplete"; + + private static final int OFFLINE_SYNC_SEQ = 60; + private static final int OFFLINE_SYNC_MAX = 500; + + private SQLiteDatabase m_writableDb; + private SQLiteDatabase m_readableDb; + private int m_articleOffset = 0; + private String m_sessionId; + private NotificationManager m_nmgr; + + private boolean m_downloadInProgress = false; + private boolean m_downloadImages = false; + private int m_syncMax; + private SharedPreferences m_prefs; + + public OfflineDownloadService() { + super("OfflineDownloadService"); + } + + @Override + public void onCreate() { + super.onCreate(); + m_nmgr = (NotificationManager)getSystemService(NOTIFICATION_SERVICE); + m_prefs = PreferenceManager + .getDefaultSharedPreferences(getApplicationContext()); + + m_downloadImages = m_prefs.getBoolean("offline_image_cache_enabled", false); + m_syncMax = m_prefs.getInt("offline_sync_max", OFFLINE_SYNC_MAX); + + initDatabase(); + } + + private void updateNotification(String msg) { + Notification notification = new Notification(R.drawable.icon, + getString(R.string.notify_downloading_title), System.currentTimeMillis()); + + PendingIntent contentIntent = PendingIntent.getActivity(this, 0, + new Intent(this, MainActivity.class), 0); + + notification.flags |= Notification.FLAG_ONGOING_EVENT; + notification.flags |= Notification.FLAG_ONLY_ALERT_ONCE; + + notification.setLatestEventInfo(this, getString(R.string.notify_downloading_title), msg, contentIntent); + + m_nmgr.notify(NOTIFY_DOWNLOADING, notification); + } + + private void updateNotification(int msgResId) { + updateNotification(getString(msgResId)); + } + + private void downloadFailed() { + m_readableDb.close(); + m_writableDb.close(); + + // TODO send notification to activity? + + m_downloadInProgress = false; + } + + private boolean isCacheServiceRunning() { + ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE); + for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) { + if ("org.fox.ttrss.ImageCacheService".equals(service.service.getClassName())) { + return true; + } + } + return false; + } + + public void downloadComplete() { + m_downloadInProgress = false; + + // if cache service is running, it will send a finished intent on its own + if (!isCacheServiceRunning()) { + m_nmgr.cancel(NOTIFY_DOWNLOADING); + + Intent intent = new Intent(); + intent.setAction(INTENT_ACTION_SUCCESS); + intent.addCategory(Intent.CATEGORY_DEFAULT); + sendBroadcast(intent); + } else { + updateNotification(getString(R.string.notify_downloading_images, 0)); + } + + m_readableDb.close(); + m_writableDb.close(); + } + + private void initDatabase() { + DatabaseHelper dh = new DatabaseHelper(getApplicationContext()); + m_writableDb = dh.getWritableDatabase(); + m_readableDb = dh.getReadableDatabase(); + } + + private synchronized SQLiteDatabase getReadableDb() { + return m_readableDb; + } + + private synchronized SQLiteDatabase getWritableDb() { + return m_writableDb; + } + + @SuppressWarnings("unchecked") + private void downloadArticles() { + Log.d(TAG, "offline: downloading articles... offset=" + m_articleOffset); + + updateNotification(getString(R.string.notify_downloading_articles, m_articleOffset)); + + OfflineArticlesRequest req = new OfflineArticlesRequest(this); + + @SuppressWarnings("serial") + HashMap map = new HashMap() { + { + put("op", "getHeadlines"); + put("sid", m_sessionId); + put("feed_id", "-4"); + put("view_mode", "unread"); + put("show_content", "true"); + put("skip", String.valueOf(m_articleOffset)); + put("limit", String.valueOf(OFFLINE_SYNC_SEQ)); + } + }; + + req.execute(map); + } + + private void downloadFeeds() { + + updateNotification(R.string.notify_downloading_feeds); + + getWritableDb().execSQL("DELETE FROM feeds;"); + + ApiRequest req = new ApiRequest(getApplicationContext()) { + @Override + protected void onPostExecute(JsonElement content) { + if (content != null) { + + try { + Type listType = new TypeToken>() {}.getType(); + List feeds = new Gson().fromJson(content, listType); + + SQLiteStatement stmtInsert = getWritableDb().compileStatement("INSERT INTO feeds " + + "("+BaseColumns._ID+", title, feed_url, has_icon, cat_id) " + + "VALUES (?, ?, ?, ?, ?);"); + + for (Feed feed : feeds) { + stmtInsert.bindLong(1, feed.id); + stmtInsert.bindString(2, feed.title); + stmtInsert.bindString(3, feed.feed_url); + stmtInsert.bindLong(4, feed.has_icon ? 1 : 0); + stmtInsert.bindLong(5, feed.cat_id); + + stmtInsert.execute(); + } + + stmtInsert.close(); + + Log.d(TAG, "offline: done downloading feeds"); + + m_articleOffset = 0; + + getWritableDb().execSQL("DELETE FROM articles;"); + + downloadArticles(); + } catch (Exception e) { + e.printStackTrace(); + updateNotification(R.string.offline_switch_error); + downloadFailed(); + } + + } else { + updateNotification(getErrorMessage()); + downloadFailed(); + } + } + + }; + + @SuppressWarnings("serial") + HashMap map = new HashMap() { + { + put("op", "getFeeds"); + put("sid", m_sessionId); + put("cat_id", "-3"); + put("unread_only", "true"); + } + }; + + req.execute(map); + } + + @Override + public void onDestroy() { + super.onDestroy(); + + m_nmgr.cancel(NOTIFY_DOWNLOADING); + + //m_readableDb.close(); + //m_writableDb.close(); + } + + public class OfflineArticlesRequest extends ApiRequest { + public OfflineArticlesRequest(Context context) { + super(context); + } + + @Override + protected void onPostExecute(JsonElement content) { + if (content != null) { + try { + Type listType = new TypeToken>() {}.getType(); + List
articles = new Gson().fromJson(content, listType); + + SQLiteStatement stmtInsert = getWritableDb().compileStatement("INSERT INTO articles " + + "("+BaseColumns._ID+", unread, marked, published, updated, is_updated, title, link, feed_id, tags, content) " + + "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);"); + + for (Article article : articles) { + + String tagsString = ""; + + for (String t : article.tags) { + tagsString += t + ", "; + } + + tagsString = tagsString.replaceAll(", $", ""); + + stmtInsert.bindLong(1, article.id); + stmtInsert.bindLong(2, article.unread ? 1 : 0); + stmtInsert.bindLong(3, article.marked ? 1 : 0); + stmtInsert.bindLong(4, article.published ? 1 : 0); + stmtInsert.bindLong(5, article.updated); + stmtInsert.bindLong(6, article.is_updated ? 1 : 0); + stmtInsert.bindString(7, article.title); + stmtInsert.bindString(8, article.link); + stmtInsert.bindLong(9, article.feed_id); + stmtInsert.bindString(10, tagsString); // comma-separated tags + stmtInsert.bindString(11, article.content); + + if (m_downloadImages) { + Document doc = Jsoup.parse(article.content); + + if (doc != null) { + Elements images = doc.select("img"); + + for (Element img : images) { + String url = img.attr("src"); + + if (url.indexOf("://") != -1) { + if (!ImageCacheService.isUrlCached(url)) { + Intent intent = new Intent(OfflineDownloadService.this, + ImageCacheService.class); + + intent.putExtra("url", url); + startService(intent); + } + } + } + } + } + + try { + stmtInsert.execute(); + } catch (Exception e) { + e.printStackTrace(); + } + + } + + stmtInsert.close(); + + //m_canGetMoreArticles = articles.size() == 30; + m_articleOffset += articles.size(); + + Log.d(TAG, "offline: received " + articles.size() + " articles"); + + if (articles.size() == OFFLINE_SYNC_SEQ && m_articleOffset < m_syncMax) { + downloadArticles(); + } else { + downloadComplete(); + } + + return; + + } catch (Exception e) { + updateNotification(R.string.offline_switch_error); + Log.d(TAG, "offline: failed: exception when loading articles"); + e.printStackTrace(); + downloadFailed(); + } + + } else { + Log.d(TAG, "offline: failed: " + getErrorMessage()); + updateNotification(getErrorMessage()); + downloadFailed(); + } + } + } + + @Override + protected void onHandleIntent(Intent intent) { + m_sessionId = intent.getStringExtra("sessionId"); + + if (!m_downloadInProgress) { + if (m_downloadImages) ImageCacheService.cleanupCache(false); + + updateNotification(R.string.notify_downloading_init); + m_downloadInProgress = true; + + downloadFeeds(); + } + } +} -- cgit v1.2.3-54-g00ecf