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Ftplets are, similar to servlets, an API to plug into the request lifecycle of FtpServer. Ftplets are called on session connect and disconnect as well as before and after each command within a user session.

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/*
 * 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.ftpserver.ftplet;

/**
 * One FtpRequest made by the client.
 *
 * @author Apache MINA Project
 */
public interface FtpRequest {

    /**
     * Get the client request string.
     * @return The full request line, e.g. "MKDIR newdir"
     */
    String getRequestLine();

    /**
     * Returns the ftp request command.
     * @return The command part of the request line, e.g. "MKDIR"
     */
    String getCommand();

    /**
     * Get the ftp request argument.
     * @return The argument part of the request line, e.g. "newdir"
     */
    String getArgument();

    /**
     * Check if request contains an argument
     * 
     * @return true if an argument is available
     */
    boolean hasArgument();
}