/*
* Copyright 2013 Google Inc. All Rights Reserved.
* 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.google.appengine.tck.datastore;
import com.google.appengine.api.datastore.AsyncDatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Transaction;
import org.jboss.shrinkwrap.api.spec.WebArchive;
/**
* @author <a href="mailto:ales.justin@jboss.org">Ales Justin</a>
*/
public abstract class AsyncTestBase extends DatastoreHelperTestBase {
protected static WebArchive getAsynchDeployment() {
return getHelperDeployment().addClass(AsyncTestBase.class);
}
protected <T> T inTx(Action<T> action) throws Exception {
AsyncDatastoreService ads = DatastoreServiceFactory.getAsyncDatastoreService();
Transaction tx = ads.beginTransaction().get();
boolean ok = false;
try {
T result = action.run(ads);
ok = true;
return result;
} finally {
if (ok)
tx.commitAsync();
else
tx.rollbackAsync();
sync(); // wait for tx to finish
}
}
protected static interface Action<T> {
T run(AsyncDatastoreService ads) throws Exception;
}
}