The Tor Browser: mobile/android/base/db/HomeProvider.java@fc2d59ddac77 (annotated)

mobile/android/base/db/HomeProvider.java@fc2d59ddac77 (annotated)

mobile/android/base/db/HomeProvider.java

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /* 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.io.IOException;
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 import org.mozilla.gecko.R;
 import org.mozilla.gecko.db.BrowserContract.HomeItems;
 import org.mozilla.gecko.db.DBUtils;
 import org.mozilla.gecko.sqlite.SQLiteBridge;
 import org.mozilla.gecko.util.RawResource;
 import android.content.ContentResolver;
 import android.content.ContentValues;
 import android.content.UriMatcher;
 import android.database.Cursor;
 import android.database.MatrixCursor;
 import android.net.Uri;
 import android.util.Log;
 public class HomeProvider extends SQLiteBridgeContentProvider {
     private static final String LOGTAG = "GeckoHomeProvider";
     // This should be kept in sync with the db version in mobile/android/modules/HomeProvider.jsm
     private static int DB_VERSION = 2;
     private static String DB_FILENAME = "home.sqlite";
     private static final String TELEMETRY_TAG = "SQLITEBRIDGE_PROVIDER_HOME";
     private static final String TABLE_ITEMS = "items";
     // Endpoint to return static fake data.
     static final int ITEMS_FAKE = 100;
     static final int ITEMS = 101;
     static final int ITEMS_ID = 102;
     static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
     static {
         URI_MATCHER.addURI(BrowserContract.HOME_AUTHORITY, "items/fake", ITEMS_FAKE);
         URI_MATCHER.addURI(BrowserContract.HOME_AUTHORITY, "items", ITEMS);
         URI_MATCHER.addURI(BrowserContract.HOME_AUTHORITY, "items/#", ITEMS_ID);
     }
     public HomeProvider() {
         super(LOGTAG);
     }
     @Override
     public String getType(Uri uri) {
         final int match = URI_MATCHER.match(uri);
         switch (match) {
             case ITEMS_FAKE: {
                 return HomeItems.CONTENT_TYPE;
             }
             case ITEMS: {
                 return HomeItems.CONTENT_TYPE;
             }
             default: {
                 throw new UnsupportedOperationException("Unknown type " + uri);
             }
         }
     }
     @Override
     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
         final int match = URI_MATCHER.match(uri);
         // If we're querying the fake items, don't try to get the database.
         if (match == ITEMS_FAKE) {
             return queryFakeItems(uri, projection, selection, selectionArgs, sortOrder);
         }
         final String datasetId = uri.getQueryParameter(BrowserContract.PARAM_DATASET_ID);
         if (datasetId == null) {
             throw new IllegalArgumentException("All queries should contain a dataset ID parameter");
         }
         selection = DBUtils.concatenateWhere(selection, HomeItems.DATASET_ID + " = ?");
         selectionArgs = DBUtils.appendSelectionArgs(selectionArgs,
                                                     new String[] { datasetId });
         // Otherwise, let the SQLiteContentProvider implementation take care of this query for us!
         Cursor c = super.query(uri, projection, selection, selectionArgs, sortOrder);
         // SQLiteBridgeContentProvider may return a null Cursor if the database hasn't been created yet.
         // However, we need a non-null cursor in order to listen for notifications.
         if (c == null) {
             c = new MatrixCursor(projection != null ? projection : HomeItems.DEFAULT_PROJECTION);
         }
         final ContentResolver cr = getContext().getContentResolver();
         c.setNotificationUri(cr, getDatasetNotificationUri(datasetId));
         return c;
     }
     /**
      * Returns a cursor populated with static fake data.
      */
     private Cursor queryFakeItems(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
         JSONArray items = null;
         try {
             final String jsonString = RawResource.getAsString(getContext(), R.raw.fake_home_items);
             items = new JSONArray(jsonString);
         } catch (IOException e) {
             Log.e(LOGTAG, "Error getting fake home items", e);
             return null;
         } catch (JSONException e) {
             Log.e(LOGTAG, "Error parsing fake_home_items.json", e);
             return null;
         }
         final MatrixCursor c = new MatrixCursor(HomeItems.DEFAULT_PROJECTION);
         for (int i = 0; i < items.length(); i++) {
             try {
                 final JSONObject item = items.getJSONObject(i);
                 c.addRow(new Object[] {
                     item.getInt("id"),
                     item.getString("dataset_id"),
                     item.getString("url"),
                     item.getString("title"),
                     item.getString("description"),
                     item.getString("image_url"),
                     item.getString("filter")
                 });
             } catch (JSONException e) {
                 Log.e(LOGTAG, "Error creating cursor row for fake home item", e);
             }
         }
         return c;
     }
     /**
      * SQLiteBridgeContentProvider implementation
      */
     @Override
     protected String getDBName(){
         return DB_FILENAME;
     }
     @Override
     protected String getTelemetryPrefix() {
         return TELEMETRY_TAG;
     }
     @Override
     protected int getDBVersion(){
         return DB_VERSION;
     }
     @Override
     public String getTable(Uri uri) {
         final int match = URI_MATCHER.match(uri);
         switch (match) {
             case ITEMS: {
                 return TABLE_ITEMS;
             }
             default: {
                 throw new UnsupportedOperationException("Unknown table " + uri);
             }
         }
     }
     @Override
     public String getSortOrder(Uri uri, String aRequested) {
         return null;
     }
     @Override
     public void setupDefaults(Uri uri, ContentValues values) { }
     @Override
     public void initGecko() { }
     @Override
     public void onPreInsert(ContentValues values, Uri uri, SQLiteBridge db) { }
     @Override
     public void onPreUpdate(ContentValues values, Uri uri, SQLiteBridge db) { }
     @Override
     public void onPostQuery(Cursor cursor, Uri uri, SQLiteBridge db) { }
     public static Uri getDatasetNotificationUri(String datasetId) {
         return Uri.withAppendedPath(HomeItems.CONTENT_URI, datasetId);
     }
 }

The Tor Browser / annotate

mobile/android/base/db/HomeProvider.java@fc2d59ddac77 (annotated)

mobile/android/base/db/HomeProvider.java