printcommandlistener.java

apache推出的net包

/*
 * Copyright 2001-2005 The Apache Software Foundation
 *
 * 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 examples;

import java.io.PrintWriter;
import org.apache.commons.net.ProtocolCommandEvent;
import org.apache.commons.net.ProtocolCommandListener;

/***
 * This is a support class for some of the example programs.  It is
 * a sample implementation of the ProtocolCommandListener interface
 * which just prints out to a specified stream all command/reply traffic.
 * <p>
 ***/

public class PrintCommandListener implements ProtocolCommandListener
{
    private PrintWriter __writer;

    public PrintCommandListener(PrintWriter writer)
    {
        __writer = writer;
    }

    public void protocolCommandSent(ProtocolCommandEvent event)
    {
        __writer.print(event.getMessage());
        __writer.flush();
    }

    public void protocolReplyReceived(ProtocolCommandEvent event)
    {
        __writer.print(event.getMessage());
        __writer.flush();
    }
}