1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17
18package com.android.settings.search;
19
20import static com.android.settings.search.IndexDatabaseHelper.Tables.TABLE_SAVED_QUERIES;
21
22import android.content.Context;
23import android.database.sqlite.SQLiteDatabase;
24import android.database.sqlite.SQLiteException;
25import android.util.Log;
26
27import com.android.settings.utils.AsyncLoader;
28
29public class SavedQueryRemover extends AsyncLoader<Void> {
30
31    private static final String LOG_TAG = "SavedQueryRemover";
32
33    public SavedQueryRemover(Context context) {
34        super(context);
35    }
36
37    @Override
38    public Void loadInBackground() {
39        final SQLiteDatabase database = getWritableDatabase();
40        try {
41            // First, delete all saved queries that are the same
42            database.delete(TABLE_SAVED_QUERIES,
43                    null /* where */,
44                    null /* whereArgs */);
45        } catch (Exception e) {
46            Log.d(LOG_TAG, "Cannot update saved Search queries", e);
47        }
48        return null;
49    }
50
51    @Override
52    protected void onDiscardResult(Void result) {
53
54    }
55
56    private SQLiteDatabase getWritableDatabase() {
57        try {
58            return IndexDatabaseHelper.getInstance(getContext()).getWritableDatabase();
59        } catch (SQLiteException e) {
60            Log.e(LOG_TAG, "Cannot open writable database", e);
61            return null;
62        }
63    }
64}
65