Java tutorial
/* * * Copyright 2009 (C) Ben Moran * * 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 net.benmoran.affectsampler; import net.benmoran.affectsampler.datastore.AppEngineClient; import net.benmoran.affectsampler.datastore.AppEngineClientImpl; import org.json.JSONException; import android.os.AsyncTask; import android.util.Log; public class SyncTask extends AsyncTask<SyncParams, Void, SyncResult> { private static final String TAG = "SyncTask"; private final SyncCaller mCaller; public SyncTask() { mCaller = null; } public SyncTask(SyncCaller caller) { mCaller = caller; } @Override protected SyncResult doInBackground(SyncParams... params) { Log.i(TAG, "run()"); int syncCount; SyncParams param = params[0]; try { // TODO Allow Mock client for testing AppEngineClient client = new AppEngineClientImpl(param.username, param.password, param.URI); Synchronizer sync = new Synchronizer(client); AffectSerializer ser = new AffectSerializer(param.contentResolver); syncCount = sync.sync(ser.toJSONArray()); } catch (SyncException e) { return new SyncResult(e); } catch (JSONException e) { return new SyncResult(e); } return new SyncResult(syncCount); } @Override protected void onPostExecute(SyncResult result) { super.onPostExecute(result); if (mCaller != null) { if (result.isOK()) { mCaller.onSuccess(result.getCount()); } else { mCaller.onError(result.getException()); } } } }