| 1 | // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.chrome.browser.sync; |
| 6 | |
| 7 | import android.app.Application; |
| 8 | import android.app.Service; |
| 9 | import android.content.Context; |
| 10 | import android.content.Intent; |
| 11 | import android.os.IBinder; |
| 12 | |
| 13 | public abstract class ChromiumSyncAdapterService extends Service { |
| 14 | private static ChromiumSyncAdapter sSyncAdapter = null; |
| 15 | private static final Object LOCK = new Object(); |
| 16 | |
| 17 | /** |
| 18 | * Get the sync adapter reference, creating an instance if necessary. |
| 19 | */ |
| 20 | private ChromiumSyncAdapter getOrCreateSyncAdapter(Context applicationContext) { |
| 21 | synchronized (LOCK) { |
| 22 | if (sSyncAdapter == null) { |
| 23 | sSyncAdapter = createChromiumSyncAdapter(applicationContext, getApplication()); |
| 24 | } |
| 25 | } |
| 26 | return sSyncAdapter; |
| 27 | } |
| 28 | |
| 29 | @Override |
| 30 | public IBinder onBind(Intent intent) { |
| 31 | return getOrCreateSyncAdapter(getApplicationContext()).getSyncAdapterBinder(); |
| 32 | } |
| 33 | |
| 34 | protected abstract ChromiumSyncAdapter createChromiumSyncAdapter(Context applicationContext, |
| 35 | Application application); |
| 36 | } |