/**
 * 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.usecases;

import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.net.SocketFactory;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.transport.TransportFactory;
import org.apache.activemq.transport.TransportListener;
import org.apache.activemq.transport.tcp.TcpTransportFactory;
import org.apache.activemq.util.URISupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DurableConsumerCloseAndReconnectTcpTest extends DurableConsumerCloseAndReconnectTest implements ExceptionListener, TransportListener {

   private static final Logger LOG = LoggerFactory.getLogger(DurableConsumerCloseAndReconnectTcpTest.class);

   private BrokerService broker;
   private TransportConnector connector;

   private CountDownLatch gotException = new CountDownLatch(1);

   private Exception reconnectException;

   private boolean reconnectInExceptionListener;

   private boolean reconnectInTransportListener;

   @Override
   public void setUp() throws Exception {
      broker = new BrokerService();
      // let the client initiate the inactivity timeout
      connector = broker.addConnector("tcp://localhost:0?transport.useInactivityMonitor=false");
      broker.setPersistent(false);
      broker.start();
      broker.waitUntilStarted();

      class SlowCloseSocketTcpTransportFactory extends TcpTransportFactory {

         class SlowCloseSocketFactory extends SocketFactory {

            class SlowCloseSocket extends Socket {

               public SlowCloseSocket(String host, int port) throws IOException {
                  super(host, port);
               }

               public SlowCloseSocket(InetAddress host, int port) throws IOException {
                  super(host, port);
               }

               public SlowCloseSocket(String host, int port, InetAddress localHost, int localPort) throws IOException {
                  super(host, port, localHost, localPort);
               }

               public SlowCloseSocket(InetAddress address,
                                      int port,
                                      InetAddress localAddress,
                                      int localPort) throws IOException {
                  super(address, port, localAddress, localPort);
               }

               @Override
               public synchronized void close() throws IOException {
                  LOG.info("delaying close");
                  try {
                     TimeUnit.MILLISECONDS.sleep(500);
                  } catch (InterruptedException e) {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                  }
                  super.close();
               }

            }

            @Override
            public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
               return new SlowCloseSocket(host, port);
            }

            @Override
            public Socket createSocket(InetAddress host, int port) throws IOException {
               return new SlowCloseSocket(host, port);
            }

            @Override
            public Socket createSocket(String host,
                                       int port,
                                       InetAddress localHost,
                                       int localPort) throws IOException, UnknownHostException {
               return new SlowCloseSocket(host, port, localHost, localPort);
            }

            @Override
            public Socket createSocket(InetAddress address,
                                       int port,
                                       InetAddress localAddress,
                                       int localPort) throws IOException {
               return new SlowCloseSocket(address, port, localAddress, localPort);
            }

         }

         @Override
         protected SocketFactory createSocketFactory() throws IOException {
            return new SlowCloseSocketFactory();
         }

      }

      TransportFactory.registerTransportFactory("tcp", new SlowCloseSocketTcpTransportFactory());

   }

   @Override
   public void tearDown() throws Exception {
      broker.stop();
      broker.waitUntilStopped();
   }

   @Override
   protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
      return new ActiveMQConnectionFactory(URISupport.removeQuery(connector.getConnectUri()) + "?useKeepAlive=false&wireFormat.maxInactivityDuration=2000");
   }

   @Override
   public void testCreateDurableConsumerCloseThenReconnect() throws Exception {
      reconnectInExceptionListener = true;
      makeConsumer();
      connection.setExceptionListener(this);
      ((ActiveMQConnection) connection).addTransportListener(this);
      assertTrue("inactive connection timedout", gotException.await(30, TimeUnit.SECONDS));
      assertNotNull("Got expected exception on close reconnect overlap: " + reconnectException, reconnectException);
   }

   public void testCreateDurableConsumerSlowCloseThenReconnectTransportListener() throws Exception {
      reconnectInTransportListener = true;
      makeConsumer();
      connection.setExceptionListener(this);
      ((ActiveMQConnection) connection).addTransportListener(this);
      assertTrue("inactive connection timedout", gotException.await(30, TimeUnit.SECONDS));
      assertNull("No exception: " + reconnectException, reconnectException);
   }

   @Override
   public void onException(JMSException exception) {
      LOG.info("Exception listener exception:" + exception);
      if (reconnectInExceptionListener) {
         try {
            makeConsumer();
         } catch (Exception e) {
            reconnectException = e;
         }

         gotException.countDown();
      }
   }

   @Override
   public void onCommand(Object command) {
   }

   @Override
   public void onException(IOException error) {
      LOG.info("Transport listener exception:" + error);
      if (reconnectInTransportListener) {
         try {
            TimeUnit.MILLISECONDS.sleep(500);
            makeConsumer();
         } catch (Exception e) {
            reconnectException = e;
         }

         gotException.countDown();
      }
   }

   @Override
   public void transportInterupted() {
   }

   @Override
   public void transportResumed() {
   }
}
