ResearchSettings.java revision 75e6fb68e91b440707b399b22fbcfcd67760a949 
1/*
2 * Copyright (C) 2013 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
17package com.android.inputmethod.research;
18
19import android.content.SharedPreferences;
20
21import java.util.UUID;
22
23public final class ResearchSettings {
24    public static final String PREF_RESEARCH_LOGGER_UUID = "pref_research_logger_uuid";
25    public static final String PREF_RESEARCH_LOGGER_ENABLED_FLAG =
26            "pref_research_logger_enabled_flag";
27
28    private ResearchSettings() {
29        // Intentional empty constructor for singleton.
30    }
31
32    public static String readResearchLoggerUuid(final SharedPreferences prefs) {
33        if (prefs.contains(PREF_RESEARCH_LOGGER_UUID)) {
34            return prefs.getString(PREF_RESEARCH_LOGGER_UUID, null);
35        }
36        // Generate a random string as uuid if not yet set
37        final String newUuid = UUID.randomUUID().toString();
38        prefs.edit().putString(PREF_RESEARCH_LOGGER_UUID, newUuid).apply();
39        return newUuid;
40    }
41
42    public static boolean readResearchLoggerEnabledFlag(final SharedPreferences prefs) {
43        return prefs.getBoolean(PREF_RESEARCH_LOGGER_ENABLED_FLAG, false);
44    }
45
46    public static void writeResearchLoggerEnabledFlag(final SharedPreferences prefs,
47            final boolean isEnabled) {
48        prefs.edit().putBoolean(PREF_RESEARCH_LOGGER_ENABLED_FLAG, isEnabled).apply();
49    }
50}
51