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 package com.android.settings.intelligence.search.savedqueries;
18 
19 import static com.android.settings.intelligence.search.indexing.IndexDatabaseHelper.Tables.TABLE_SAVED_QUERIES;
20 
21 import android.content.Context;
22 import android.database.sqlite.SQLiteDatabase;
23 import android.database.sqlite.SQLiteException;
24 import android.util.Log;
25 
26 import com.android.settings.intelligence.search.indexing.IndexDatabaseHelper;
27 import com.android.settings.intelligence.utils.AsyncLoader;
28 
29 
30 public class SavedQueryRemover extends AsyncLoader<Void> {
31 
32     private static final String LOG_TAG = "SavedQueryRemover";
33 
SavedQueryRemover(Context context)34     public SavedQueryRemover(Context context) {
35         super(context);
36     }
37 
38     @Override
loadInBackground()39     public Void loadInBackground() {
40         final SQLiteDatabase database = getWritableDatabase();
41         try {
42             // First, delete all saved queries that are the same
43             database.delete(TABLE_SAVED_QUERIES,
44                     null /* where */,
45                     null /* whereArgs */);
46         } catch (Exception e) {
47             Log.d(LOG_TAG, "Cannot update saved Search queries", e);
48         }
49         return null;
50     }
51 
52     @Override
onDiscardResult(Void result)53     protected void onDiscardResult(Void result) {
54 
55     }
56 
getWritableDatabase()57     private SQLiteDatabase getWritableDatabase() {
58         try {
59             return IndexDatabaseHelper.getInstance(getContext()).getWritableDatabase();
60         } catch (SQLiteException e) {
61             Log.e(LOG_TAG, "Cannot open writable database", e);
62             return null;
63         }
64     }
65 }
66