diff options
Diffstat (limited to 'mobile/android/thirdparty/com/keepsafe/switchboard/DeviceUuidFactory.java')
-rw-r--r-- | mobile/android/thirdparty/com/keepsafe/switchboard/DeviceUuidFactory.java | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/mobile/android/thirdparty/com/keepsafe/switchboard/DeviceUuidFactory.java b/mobile/android/thirdparty/com/keepsafe/switchboard/DeviceUuidFactory.java deleted file mode 100644 index c4476d2cd..000000000 --- a/mobile/android/thirdparty/com/keepsafe/switchboard/DeviceUuidFactory.java +++ /dev/null @@ -1,70 +0,0 @@ -/* - Copyright 2012 KeepSafe Software Inc. - - 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 com.keepsafe.switchboard; - -import java.util.UUID; - -import android.content.Context; -import android.content.SharedPreferences; - -/** - * Generates a UUID and stores is persistent as in the apps shared preferences. - * - * @author Philipp Berner - */ -public class DeviceUuidFactory { - protected static final String PREFS_FILE = "com.keepsafe.switchboard.uuid"; - protected static final String PREFS_DEVICE_ID = "device_id"; - - private static UUID uuid = null; - - public DeviceUuidFactory(Context context) { - if (uuid == null) { - synchronized (DeviceUuidFactory.class) { - if (uuid == null) { - final SharedPreferences prefs = context - .getSharedPreferences(PREFS_FILE, Context.MODE_PRIVATE); - final String id = prefs.getString(PREFS_DEVICE_ID, null); - - if (id != null) { - // Use the ids previously computed and stored in the prefs file - uuid = UUID.fromString(id); - } else { - uuid = UUID.randomUUID(); - - // Write the value out to the prefs file - prefs.edit().putString(PREFS_DEVICE_ID, uuid.toString()).apply(); - } - } - } - } - } - - /** - * Returns a unique UUID for the current android device. As with all UUIDs, - * this unique ID is "very highly likely" to be unique across all Android - * devices. Much more so than ANDROID_ID is. - * - * The UUID is generated with <code>UUID.randomUUID()</code>. - * - * @return a UUID that may be used to uniquely identify your device for most - * purposes. - */ - public UUID getDeviceUuid() { - return uuid; - } - -}
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