| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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 |
| */ |
| |
| /** |
| * A {@link Service} which runs the internal implementation of {@link AbstractThreadedSyncAdapter}, |
| * syncing voicemails to and from a visual voicemail server. |
| */ |
| |
| package android.telecom; |
| |
| import android.accounts.Account; |
| import android.app.Service; |
| import android.content.AbstractThreadedSyncAdapter; |
| import android.content.ContentProviderClient; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.SyncResult; |
| import android.os.Bundle; |
| import android.os.IBinder; |
| import android.provider.VoicemailContract; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A service to run the VvmSyncAdapter. |
| */ |
| public class VvmSyncService extends Service { |
| // Storage for an instance of the sync adapter |
| private static VvmSyncAdapter sSyncAdapter = null; |
| // Object to use as a thread-safe lock |
| private static final Object sSyncAdapterLock = new Object(); |
| |
| @Override |
| public void onCreate() { |
| synchronized (sSyncAdapterLock) { |
| if (sSyncAdapter == null) { |
| sSyncAdapter = new VvmSyncAdapter(getApplicationContext(), true); |
| } |
| } |
| } |
| |
| @Override |
| public IBinder onBind(Intent intent) { |
| return sSyncAdapter.getSyncAdapterBinder(); |
| } |
| |
| public class VvmSyncAdapter extends AbstractThreadedSyncAdapter { |
| /** The key to get the extra designating the type of sync action to perform. */ |
| public final static String SYNC_EXTRA_CODE = "sync_extra_code"; |
| /** The key to get the {@code Voicemail} object for a new voicemail. */ |
| public final static String NEW_VOICEMAIL_DATA = "extra_new_voicemail_data"; |
| /** Sync a new voicemail from the carrier to the device. */ |
| public final static int SYNC_EXTRA_NEW_VOICEMAIL = 1; |
| /** Sync all voicemails because the mailbox was changed remotely. */ |
| public final static int SYNC_EXTRA_MAILBOX_UPDATE = 2; |
| |
| private final Context mContext; |
| |
| public VvmSyncAdapter(Context context, boolean autoInitialize) { |
| super(context, autoInitialize); |
| mContext = context; |
| } |
| |
| @Override |
| public void onPerformSync(Account account, Bundle extras, String authority, |
| ContentProviderClient provider, SyncResult syncResult) { |
| if (extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, false)) { |
| // notify server that voicemail has been changed |
| syncToServer(); |
| } |
| |
| final int syncAction = extras.getInt(SYNC_EXTRA_CODE); |
| switch (syncAction) { |
| /** sync from carrier */ |
| case SYNC_EXTRA_NEW_VOICEMAIL: |
| // Log new voicemail in voicemail provider. |
| Voicemail newVoicemail = extras.getParcelable(NEW_VOICEMAIL_DATA); |
| VoicemailContract.Voicemails.insert(mContext, newVoicemail); |
| break; |
| case SYNC_EXTRA_MAILBOX_UPDATE: |
| // Clear and reload all voicemails because the mailbox was updated remotely. |
| VoicemailContract.Voicemails.deleteAll(mContext); |
| List<Voicemail> voicemails = downloadVoicemails(); |
| VoicemailContract.Voicemails.insert(mContext, voicemails); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** Subclasses should implement this method to sync changes to server */ |
| protected void syncToServer() { } |
| |
| /** Subclasses should implement this method to download voicemails */ |
| protected List<Voicemail> downloadVoicemails() { |
| return new ArrayList<Voicemail>(); |
| } |
| } |
| } |