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139 lines
4.6 KiB
139 lines
4.6 KiB
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package aria.apache.commons.net;
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import java.util.EventObject;
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/***
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* There exists a large class of IETF protocols that work by sending an
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* ASCII text command and arguments to a server, and then receiving an
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* ASCII text reply. For debugging and other purposes, it is extremely
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* useful to log or keep track of the contents of the protocol messages.
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* The ProtocolCommandEvent class coupled with the
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* {@link ProtocolCommandListener}
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* interface facilitate this process.
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*
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*
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* @see ProtocolCommandListener
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* @see ProtocolCommandSupport
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***/
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public class ProtocolCommandEvent extends EventObject {
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private static final long serialVersionUID = 403743538418947240L;
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private final int __replyCode;
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private final boolean __isCommand;
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private final String __message, __command;
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/***
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* Creates a ProtocolCommandEvent signalling a command was sent to
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* the server. ProtocolCommandEvents created with this constructor
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* should only be sent after a command has been sent, but before the
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* reply has been received.
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*
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* @param source The source of the event.
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* @param command The string representation of the command type sent, not
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* including the arguments (e.g., "STAT" or "GET").
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* @param message The entire command string verbatim as sent to the server,
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* including all arguments.
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***/
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public ProtocolCommandEvent(Object source, String command, String message) {
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super(source);
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__replyCode = 0;
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__message = message;
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__isCommand = true;
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__command = command;
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}
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/***
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* Creates a ProtocolCommandEvent signalling a reply to a command was
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* received. ProtocolCommandEvents created with this constructor
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* should only be sent after a complete command reply has been received
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* fromt a server.
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*
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* @param source The source of the event.
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* @param replyCode The integer code indicating the natureof the reply.
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* This will be the protocol integer value for protocols
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* that use integer reply codes, or the reply class constant
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* corresponding to the reply for protocols like POP3 that use
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* strings like OK rather than integer codes (i.e., POP3Repy.OK).
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* @param message The entire reply as received from the server.
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***/
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public ProtocolCommandEvent(Object source, int replyCode, String message) {
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super(source);
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__replyCode = replyCode;
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__message = message;
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__isCommand = false;
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__command = null;
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}
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/***
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* Returns the string representation of the command type sent (e.g., "STAT"
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* or "GET"). If the ProtocolCommandEvent is a reply event, then null
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* is returned.
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*
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* @return The string representation of the command type sent, or null
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* if this is a reply event.
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***/
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public String getCommand() {
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return __command;
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}
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/***
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* Returns the reply code of the received server reply. Undefined if
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* this is not a reply event.
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*
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* @return The reply code of the received server reply. Undefined if
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* not a reply event.
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***/
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public int getReplyCode() {
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return __replyCode;
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}
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/***
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* Returns true if the ProtocolCommandEvent was generated as a result
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* of sending a command.
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*
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* @return true If the ProtocolCommandEvent was generated as a result
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* of sending a command. False otherwise.
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***/
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public boolean isCommand() {
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return __isCommand;
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}
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/***
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* Returns true if the ProtocolCommandEvent was generated as a result
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* of receiving a reply.
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*
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* @return true If the ProtocolCommandEvent was generated as a result
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* of receiving a reply. False otherwise.
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***/
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public boolean isReply() {
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return !isCommand();
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}
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/***
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* Returns the entire message sent to or received from the server.
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* Includes the line terminator.
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*
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* @return The entire message sent to or received from the server.
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***/
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public String getMessage() {
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return __message;
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}
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}
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