| /* |
| * Copyright (c) 2021 Project CHIP Authors |
| * All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package chip.platform; |
| |
| import android.content.Context; |
| import android.content.SharedPreferences; |
| import android.util.Log; |
| |
| /** Android implementation of a key/value store using SharedPreferences. */ |
| public class PreferencesKeyValueStoreManager implements KeyValueStoreManager { |
| private final String TAG = KeyValueStoreManager.class.getSimpleName(); |
| private final String PREFERENCE_FILE_KEY = "chip.platform.KeyValueStore"; |
| private SharedPreferences preferences; |
| |
| public PreferencesKeyValueStoreManager(Context context) { |
| preferences = context.getSharedPreferences(PREFERENCE_FILE_KEY, Context.MODE_PRIVATE); |
| } |
| |
| @Override |
| public String get(String key) { |
| String value = preferences.getString(key, null); |
| if (value == null) { |
| Log.d(TAG, "Key '" + key + "' not found in shared preferences"); |
| } |
| return value; |
| } |
| |
| @Override |
| public void set(String key, String value) { |
| preferences.edit().putString(key, value).apply(); |
| } |
| |
| @Override |
| public void delete(String key) { |
| preferences.edit().remove(key).apply(); |
| } |
| } |