/*

  * Copyright 2009 the original author or authors.

  * 

  * 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 org.mockftpserver.stub.command;

 import org.mockftpserver.core.command.Command;

 import org.mockftpserver.core.command.CommandHandler;

 import org.mockftpserver.core.command.InvocationRecord;

 import org.mockftpserver.core.command.ReplyCodes;

 import org.mockftpserver.core.session.Session;

 import org.mockftpserver.core.util.PortParser;

 import org.mockftpserver.core.util.HostAndPort;

 import java.net.UnknownHostException;

 /**

  * CommandHandler for the EPRT command. Send back a reply code of 200.

  * <p/>

  * Each invocation record stored by this CommandHandler includes the following data element key/values:

  * <ul>

  * <li>{@link #HOST_KEY} ("host") - the client data host (InetAddress) submitted on the invocation (from parameters 1-4)

  * <li>{@link #PORT_KEY} ("port") - the port number (Integer) submitted on the invocation (from parameter 5-6)

  * </ul>

  * See RFC2428 for more information.

  *

  * @author Chris Mair

  * @version $Revision: 262 $ - $Date: 2012-07-15 08:33:02 -0400 (Sun, 15 Jul 2012) $

  */

 public class EprtCommandHandler extends AbstractStubCommandHandler implements CommandHandler {

     public static final String HOST_KEY = "host";

     public static final String PORT_KEY = "port";

     /**

      * Constructor. Initialize the replyCode.

      */

     public EprtCommandHandler() {

         setReplyCode(ReplyCodes.EPRT_OK);

     }

     /**

      * Handle the command

      *

      * @throws java.net.UnknownHostException

      * @see org.mockftpserver.core.command.CommandHandler#handleCommand(org.mockftpserver.core.command.Command, org.mockftpserver.core.session.Session)

      */

     public void handleCommand(Command command, Session session, InvocationRecord invocationRecord) throws UnknownHostException {

         String parameter = command.getRequiredParameter(0);

         HostAndPort client = PortParser.parseExtendedAddressHostAndPort(parameter);

         LOG.debug("host=" + client.host + " port=" + client.port);

         session.setClientDataHost(client.host);

         session.setClientDataPort(client.port);

         invocationRecord.set(HOST_KEY, client.host);

         invocationRecord.set(PORT_KEY, new Integer(client.port));

         sendReply(session);

     }

 }