/*
* Copyright (c) 2008-2013, Hazelcast, 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.hazelcast.client.impl.client.txn;
import com.hazelcast.client.HazelcastClient;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IQueue;
import com.hazelcast.core.TransactionalQueue;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.QuickTest;
import com.hazelcast.transaction.TransactionContext;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static com.hazelcast.test.HazelcastTestSupport.randomString;
import static com.hazelcast.test.HazelcastTestSupport.sleepSeconds;
import static org.junit.Assert.*;
@RunWith(HazelcastParallelClassRunner.class)
@Category(QuickTest.class)
public class ClientTxnQueueTest {
static HazelcastInstance client;
static HazelcastInstance server;
@BeforeClass
public static void init(){
server = Hazelcast.newHazelcastInstance();
client = HazelcastClient.newHazelcastClient();
}
@AfterClass
public static void destroy() {
HazelcastClient.shutdownAll();
Hazelcast.shutdownAll();
}
@Test
public void testTransactionalOfferPoll() {
final String item = "offered";
final String queueName = randomString();
final IQueue queue = client.getQueue(queueName);
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue txnQueue = context.getQueue(queueName);
txnQueue.offer(item);
assertEquals(item, txnQueue.poll());
context.commitTransaction();
}
@Test
public void testQueueSizeAfterTxnOfferPoll() {
final String item = "offered";
final String queueName = randomString();
final IQueue queue = client.getQueue(queueName);
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue txnQueue = context.getQueue(queueName);
txnQueue.offer(item);
txnQueue.poll();
context.commitTransaction();
assertEquals(0, queue.size());
}
@Test
public void testTransactionalOfferTake() throws InterruptedException {
final String item = "offered";
final String queueName = randomString();
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue<String> txnQueue = context.getQueue(queueName);
assertTrue(txnQueue.offer(item));
assertEquals(1, txnQueue.size());
assertEquals(item, txnQueue.take());
context.commitTransaction();
}
@Test
public void testTransactionalQueueGetsOfferedItems_whenBlockedOnPoll() throws InterruptedException{
final String item = "offered1";
final String queueName = randomString();
final IQueue queue1 = client.getQueue(queueName);
final CountDownLatch justBeforeBlocked = new CountDownLatch(1);
new Thread() {
public void run() {
try {
justBeforeBlocked.await();
sleepSeconds(1);
queue1.offer(item);
} catch (InterruptedException e) {
fail("failed"+e);
}
}
}.start();
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue txnQueue1 = context.getQueue(queueName);
justBeforeBlocked.countDown();
Object result = txnQueue1.poll(5, TimeUnit.SECONDS);
assertEquals("TransactionalQueue while blocked in pol should get item offered from client queue", item, result);
context.commitTransaction();
}
@Test
public void testTransactionalPeek() {
final String item = "offered";
final String queunName = randomString();
final IQueue queue = client.getQueue(queunName);
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue txnQueue = context.getQueue(queunName);
txnQueue.offer(item);
assertEquals(item, txnQueue.peek());
assertEquals(item, txnQueue.peek());
context.commitTransaction();
}
@Test
public void testTransactionalOfferRoleBack() {
final String name = randomString();
final IQueue queue = client.getQueue(name);
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue<String> qTxn = context.getQueue(name);
qTxn.offer("ITEM");
context.rollbackTransaction();
assertEquals(0, queue.size());
}
@Test
public void testTransactionalQueueSize() {
final String item = "offered";
final String name = randomString();
final IQueue queue = client.getQueue(name);
queue.offer(item);
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue<String> txnQueue = context.getQueue(name);
txnQueue.offer(item);
assertEquals(2, txnQueue.size());
context.rollbackTransaction();
}
@Test
public void testTransactionalOfferAndPollWithTimeout() throws InterruptedException {
final String item = "offered";
final String name = randomString();
final TransactionContext context = client.newTransactionContext();
context.beginTransaction();
TransactionalQueue<String> txnQueue = context.getQueue(name);
assertTrue(txnQueue.offer(item));
assertEquals(1, txnQueue.size());
assertEquals(item, txnQueue.poll(5, TimeUnit.SECONDS));
context.commitTransaction();
}
}