/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.activemq.transport.vm;

import java.net.URI;
import java.net.URISyntaxException;

import javax.jms.DeliveryMode;

import org.apache.activemq.broker.BrokerRegistry;
import org.apache.activemq.broker.BrokerTestSupport;
import org.apache.activemq.broker.StubConnection;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ConnectionInfo;
import org.apache.activemq.command.ConsumerInfo;
import org.apache.activemq.command.Message;
import org.apache.activemq.command.ProducerInfo;
import org.apache.activemq.command.SessionInfo;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.transport.TransportFactory;
import org.apache.activemq.util.IOExceptionSupport;

/**
 * Used to see if the VM transport starts an embedded broker on demand.
 */
public class VMTransportEmbeddedBrokerTest extends BrokerTestSupport {

   public static void main(String[] args) {
      junit.textui.TestRunner.run(VMTransportEmbeddedBrokerTest.class);
   }

   public void testConsumerPrefetchAtOne() throws Exception {

      // Make sure the broker is created due to the connection being started.
      assertNull(BrokerRegistry.getInstance().lookup("localhost"));
      StubConnection connection = createConnection();
      assertNotNull(BrokerRegistry.getInstance().lookup("localhost"));

      // Start a producer and consumer
      ConnectionInfo connectionInfo = createConnectionInfo();
      SessionInfo sessionInfo = createSessionInfo(connectionInfo);
      ProducerInfo producerInfo = createProducerInfo(sessionInfo);
      connection.send(connectionInfo);
      connection.send(sessionInfo);
      connection.send(producerInfo);

      ActiveMQQueue destination = new ActiveMQQueue("TEST");

      ConsumerInfo consumerInfo = createConsumerInfo(sessionInfo, destination);
      consumerInfo.setPrefetchSize(1);
      connection.send(consumerInfo);

      // Send 2 messages to the broker.
      connection.send(createMessage(producerInfo, destination, DeliveryMode.NON_PERSISTENT));
      connection.send(createMessage(producerInfo, destination, DeliveryMode.NON_PERSISTENT));

      // Make sure only 1 message was delivered.
      Message m = receiveMessage(connection);
      assertNotNull(m);
      assertNoMessagesLeft(connection);

      // Make sure the broker is shutdown when the connection is stopped.
      assertNotNull(BrokerRegistry.getInstance().lookup("localhost"));
      connection.stop();
      assertNull(BrokerRegistry.getInstance().lookup("localhost"));
   }

   protected void setUp() throws Exception {
      // Don't call super since it manually starts up a broker.
   }

   protected void tearDown() throws Exception {
      // Don't call super since it manually tears down a broker.
   }

   protected StubConnection createConnection() throws Exception {
      try {
         Transport transport = TransportFactory.connect(new URI("vm://localhost?broker.persistent=false"));
         StubConnection connection = new StubConnection(transport);
         return connection;
      }
      catch (URISyntaxException e) {
         throw IOExceptionSupport.create(e);
      }
   }

}
