Java tutorial
/* * Copyright (C) 2010 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. */ package com.bearstech.android.myownsync.syncadapter; import android.accounts.Account; import android.accounts.AccountManager; import android.accounts.AuthenticatorException; import android.accounts.OperationCanceledException; import android.content.AbstractThreadedSyncAdapter; import android.content.ContentProviderClient; import android.content.Context; import android.content.SyncResult; import android.os.Bundle; import android.util.Log; import com.bearstech.android.myownsync.Constants; import com.bearstech.android.myownsync.client.NetworkUtilities; import com.bearstech.android.myownsync.client.User; import com.bearstech.android.myownsync.client.User.Status; import com.bearstech.android.myownsync.platform.ContactManager; import org.apache.http.ParseException; import org.apache.http.auth.AuthenticationException; import org.json.JSONException; import java.io.IOException; import java.util.Date; import java.util.List; /** * SyncAdapter implementation for syncing sample SyncAdapter contacts to the * platform ContactOperations provider. */ public class SyncAdapter extends AbstractThreadedSyncAdapter { private static final String TAG = "SyncAdapter"; private final AccountManager mAccountManager; private final Context mContext; private Date mLastUpdated; public SyncAdapter(Context context, boolean autoInitialize) { super(context, autoInitialize); mContext = context; mAccountManager = AccountManager.get(context); } @Override public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider, SyncResult syncResult) { List<User> users; List<Status> statuses; String authtoken = null; try { // use the account manager to request the credentials authtoken = mAccountManager.blockingGetAuthToken(account, Constants.AUTHTOKEN_TYPE, true /* notifyAuthFailure */); // fetch updates from the sample service over the cloud users = NetworkUtilities.fetchFriendUpdates(account, authtoken, mLastUpdated); // update the last synced date. mLastUpdated = new Date(); // update platform contacts. Log.d(TAG, "Calling contactManager's sync contacts"); ContactManager.syncContacts(mContext, account.name, users); // fetch and update status messages for all the synced users. statuses = NetworkUtilities.fetchFriendStatuses(account, authtoken); ContactManager.insertStatuses(mContext, account.name, statuses); } catch (final AuthenticatorException e) { syncResult.stats.numParseExceptions++; Log.e(TAG, "AuthenticatorException", e); } catch (final OperationCanceledException e) { Log.e(TAG, "OperationCanceledExcetpion", e); } catch (final IOException e) { Log.e(TAG, "IOException", e); syncResult.stats.numIoExceptions++; } catch (final AuthenticationException e) { mAccountManager.invalidateAuthToken(Constants.ACCOUNT_TYPE, authtoken); syncResult.stats.numAuthExceptions++; Log.e(TAG, "AuthenticationException", e); } catch (final ParseException e) { syncResult.stats.numParseExceptions++; Log.e(TAG, "ParseException", e); } catch (final JSONException e) { syncResult.stats.numParseExceptions++; Log.e(TAG, "JSONException", e); } } }