diff options
Diffstat (limited to 'mobile/android/base/java/org/mozilla/gecko/db/LocalURLMetadata.java')
| -rw-r--r-- | mobile/android/base/java/org/mozilla/gecko/db/LocalURLMetadata.java | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/db/LocalURLMetadata.java b/mobile/android/base/java/org/mozilla/gecko/db/LocalURLMetadata.java deleted file mode 100644 index 7f2c4a736..000000000 --- a/mobile/android/base/java/org/mozilla/gecko/db/LocalURLMetadata.java +++ /dev/null @@ -1,240 +0,0 @@ -/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- */ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. - */ -package org.mozilla.gecko.db; - -import java.util.ArrayList; -import java.util.Collection; -import java.util.Collections; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Iterator; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import org.json.JSONException; -import org.json.JSONObject; -import org.mozilla.gecko.GeckoAppShell; -import org.mozilla.gecko.icons.decoders.LoadFaviconResult; -import org.mozilla.gecko.util.ThreadUtils; - -import android.content.ContentResolver; -import android.content.ContentValues; -import android.database.Cursor; -import android.net.Uri; -import android.util.Log; -import android.util.LruCache; - -// Holds metadata info about URLs. Supports some helper functions for getting back a HashMap of key value data. -public class LocalURLMetadata implements URLMetadata { - private static final String LOGTAG = "GeckoURLMetadata"; - private final Uri uriWithProfile; - - public LocalURLMetadata(String mProfile) { - uriWithProfile = DBUtils.appendProfileWithDefault(mProfile, URLMetadataTable.CONTENT_URI); - } - - // A list of columns in the table. It's used to simplify some loops for reading/writing data. - private static final Set<String> COLUMNS; - static { - final HashSet<String> tempModel = new HashSet<>(4); - tempModel.add(URLMetadataTable.URL_COLUMN); - tempModel.add(URLMetadataTable.TILE_IMAGE_URL_COLUMN); - tempModel.add(URLMetadataTable.TILE_COLOR_COLUMN); - tempModel.add(URLMetadataTable.TOUCH_ICON_COLUMN); - COLUMNS = Collections.unmodifiableSet(tempModel); - } - - // Store a cache of recent results. This number is chosen to match the max number of tiles on about:home - private static final int CACHE_SIZE = 9; - // Note: Members of this cache are unmodifiable. - private final LruCache<String, Map<String, Object>> cache = new LruCache<String, Map<String, Object>>(CACHE_SIZE); - - /** - * Converts a JSON object into a unmodifiable Map of known metadata properties. - * Will throw away any properties that aren't stored in the database. - * - * Incoming data can include a list like: {touchIconList:{56:"http://x.com/56.png", 76:"http://x.com/76.png"}}. - * This will then be filtered to find the most appropriate touchIcon, i.e. the closest icon size that is larger - * than (or equal to) the preferred homescreen launcher icon size, which is then stored in the "touchIcon" property. - */ - @Override - public Map<String, Object> fromJSON(JSONObject obj) { - Map<String, Object> data = new HashMap<String, Object>(); - - for (String key : COLUMNS) { - if (obj.has(key)) { - data.put(key, obj.optString(key)); - } - } - - - try { - JSONObject icons; - if (obj.has("touchIconList") && - (icons = obj.getJSONObject("touchIconList")).length() > 0) { - int preferredSize = GeckoAppShell.getPreferredIconSize(); - - Iterator<String> keys = icons.keys(); - - ArrayList<Integer> sizes = new ArrayList<Integer>(icons.length()); - while (keys.hasNext()) { - sizes.add(new Integer(keys.next())); - } - - final int bestSize = LoadFaviconResult.selectBestSizeFromList(sizes, preferredSize); - final String iconURL = icons.getString(Integer.toString(bestSize)); - - data.put(URLMetadataTable.TOUCH_ICON_COLUMN, iconURL); - } - } catch (JSONException e) { - Log.w(LOGTAG, "Exception processing touchIconList for LocalURLMetadata; ignoring.", e); - } - - return Collections.unmodifiableMap(data); - } - - /** - * Converts a Cursor into a unmodifiable Map of known metadata properties. - * Will throw away any properties that aren't stored in the database. - * Will also not iterate through multiple rows in the cursor. - */ - private Map<String, Object> fromCursor(Cursor c) { - Map<String, Object> data = new HashMap<String, Object>(); - - String[] columns = c.getColumnNames(); - for (String column : columns) { - if (COLUMNS.contains(column)) { - try { - data.put(column, c.getString(c.getColumnIndexOrThrow(column))); - } catch (Exception ex) { - Log.i(LOGTAG, "Error getting data for " + column, ex); - } - } - } - - return Collections.unmodifiableMap(data); - } - - /** - * Returns an unmodifiable Map of url->Metadata (i.e. A second HashMap) for a list of urls. - * Must not be called from UI or Gecko threads. - */ - @Override - public Map<String, Map<String, Object>> getForURLs(final ContentResolver cr, - final Collection<String> urls, - final List<String> requestedColumns) { - ThreadUtils.assertNotOnUiThread(); - ThreadUtils.assertNotOnGeckoThread(); - - final Map<String, Map<String, Object>> data = new HashMap<String, Map<String, Object>>(); - - // Nothing to query for - if (urls.isEmpty() || requestedColumns.isEmpty()) { - Log.e(LOGTAG, "Queried metadata for nothing"); - return data; - } - - // Search the cache for any of these urls - List<String> urlsToQuery = new ArrayList<String>(); - for (String url : urls) { - final Map<String, Object> hit = cache.get(url); - if (hit != null) { - // Cache hit: we've found the URL in the cache, however we may not have cached the desired columns - // for that URL. Hence we need to check whether our cache hit contains those columns, and directly - // retrieve the desired data if not. (E.g. the top sites panel retrieves the tile, and tilecolor. If - // we later try to retrieve the touchIcon for a top-site the cache hit will only point to - // tile+tilecolor, and not the required touchIcon. In this case we don't want to use the cache.) - boolean useCache = true; - for (String c: requestedColumns) { - if (!hit.containsKey(c)) { - useCache = false; - } - } - if (useCache) { - data.put(url, hit); - } else { - urlsToQuery.add(url); - } - } else { - urlsToQuery.add(url); - } - } - - // If everything was in the cache, we're done! - if (urlsToQuery.size() == 0) { - return Collections.unmodifiableMap(data); - } - - final String selection = DBUtils.computeSQLInClause(urlsToQuery.size(), URLMetadataTable.URL_COLUMN); - List<String> columns = requestedColumns; - // We need the url to build our final HashMap, so we force it to be included in the query. - if (!columns.contains(URLMetadataTable.URL_COLUMN)) { - // The requestedColumns may be immutable (e.g. if the caller used Collections.singletonList), hence - // we have to create a copy. - columns = new ArrayList<String>(columns); - columns.add(URLMetadataTable.URL_COLUMN); - } - - final Cursor cursor = cr.query(uriWithProfile, - columns.toArray(new String[columns.size()]), // columns, - selection, // selection - urlsToQuery.toArray(new String[urlsToQuery.size()]), // selectionargs - null); - try { - if (!cursor.moveToFirst()) { - return Collections.unmodifiableMap(data); - } - - do { - final Map<String, Object> metadata = fromCursor(cursor); - final String url = cursor.getString(cursor.getColumnIndexOrThrow(URLMetadataTable.URL_COLUMN)); - - data.put(url, metadata); - cache.put(url, metadata); - } while (cursor.moveToNext()); - - } finally { - cursor.close(); - } - - return Collections.unmodifiableMap(data); - } - - /** - * Saves a HashMap of metadata into the database. Will iterate through columns - * in the Database and only save rows with matching keys in the HashMap. - * Must not be called from UI or Gecko threads. - */ - @Override - public void save(final ContentResolver cr, final Map<String, Object> data) { - ThreadUtils.assertNotOnUiThread(); - ThreadUtils.assertNotOnGeckoThread(); - - try { - ContentValues values = new ContentValues(); - - for (String key : COLUMNS) { - if (data.containsKey(key)) { - values.put(key, (String) data.get(key)); - } - } - - if (values.size() == 0) { - return; - } - - Uri uri = uriWithProfile.buildUpon() - .appendQueryParameter(BrowserContract.PARAM_INSERT_IF_NEEDED, "true") - .build(); - cr.update(uri, values, URLMetadataTable.URL_COLUMN + "=?", new String[] { - (String) data.get(URLMetadataTable.URL_COLUMN) - }); - } catch (Exception ex) { - Log.e(LOGTAG, "error saving", ex); - } - } -} |