Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
 /*
  * 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.commons.net;
There exists a large class of IETF protocols that work by sending an ASCII text command and arguments to a server, and then receiving an ASCII text reply. For debugging and other purposes, it is extremely useful to log or keep track of the contents of the protocol messages. The ProtocolCommandListener interface coupled with the ProtocolCommandEvent class facilitate this process.

To receive ProtocolCommandEvents, you merely implement the ProtocolCommandListener interface and register the class as a listener with a ProtocolCommandEvent source such as org.apache.commons.net.ftp.FTPClient.

public interface ProtocolCommandListener extends EventListener
{

    
This method is invoked by a ProtocolCommandEvent source after sending a protocol command to a server.

Parameters:
event The ProtocolCommandEvent fired.
    public void protocolCommandSent(ProtocolCommandEvent event);

    
This method is invoked by a ProtocolCommandEvent source after receiving a reply from a server.

Parameters:
event The ProtocolCommandEvent fired.
    public void protocolReplyReceived(ProtocolCommandEvent event);
New to GrepCode? Check out our FAQ X