/*

  * Copyright 2008 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.fake.command;

 import org.mockftpserver.core.command.Command;

 import org.mockftpserver.core.command.ReplyCodes;

 import org.mockftpserver.core.session.Session;

 import org.mockftpserver.core.session.SessionKeys;

 /**

  * CommandHandler for the PWD command. Handler logic:

  * <ol>

  * <li>If the required "current directory" property is missing from the session, then reply with 550</li>

  * <li>Otherwise, reply with 257 and the current directory</li>

  * </ol>

  *

  * @author Chris Mair

  * @version $Revision: 182 $ - $Date: 2008-11-30 21:37:49 -0500 (Sun, 30 Nov 2008) $

  */

 public class PwdCommandHandler extends AbstractFakeCommandHandler {

     protected void handle(Command command, Session session) {

         String currentDirectory = (String) session.getAttribute(SessionKeys.CURRENT_DIRECTORY);

         this.replyCodeForFileSystemException = ReplyCodes.READ_FILE_ERROR;

         verifyFileSystemCondition(notNullOrEmpty(currentDirectory), currentDirectory, "filesystem.currentDirectoryNotSet");

         sendReply(session, ReplyCodes.PWD_OK, "pwd", list(currentDirectory));

     }

 }