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https://codeberg.org/Mercury-IM/Smack
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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2315 b35dd754-fafc-0310-a699-88a17e54d16e
305 lines
No EOL
10 KiB
Java
305 lines
No EOL
10 KiB
Java
/**
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* $RCSfile$
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* $Revision$
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* $Date$
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*
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* Copyright (C) 2002-2003 Jive Software. All rights reserved.
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* ====================================================================
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* The Jive Software License (based on Apache Software License, Version 1.1)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by
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* Jive Software (http://www.jivesoftware.com)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Smack" and "Jive Software" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please
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* contact webmaster@jivesoftware.com.
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*
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* 5. Products derived from this software may not be called "Smack",
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* nor may "Smack" appear in their name, without prior written
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* permission of Jive Software.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*/
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package org.jivesoftware.smack.packet;
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import org.jivesoftware.smack.util.StringUtils;
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/**
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* Represents XMPP message packets. A message can be one of several types:
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*
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* <ul>
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* <li>Message.Type.NORMAL -- (Default) a normal text message used in email like interface.
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* <li>Message.Type.CHAT -- a typically short text message used in line-by-line chat interfaces.
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* <li>Message.Type.GROUP_CHAT -- a chat message sent to a groupchat server for group chats.
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* <li>Message.Type.HEADLINE -- a text message to be displayed in scrolling marquee displays.
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* <li>Message.Type.ERROR -- indicates a messaging error.
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* </ul>
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*
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* For each message type, different message fields are typically used as follows:
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* <p>
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* <table border="1">
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* <tr><td> </td><td colspan="5"><b>Message type</b></td></tr>
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* <tr><td><i>Field</i></td><td><b>Normal</b></td><td><b>Chat</b></td><td><b>Group Chat</b></td><td><b>Headline</b></td><td><b>XMPPError</b></td></tr>
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* <tr><td><i>subject</i></td> <td>SHOULD</td><td>SHOULD NOT</td><td>SHOULD NOT</td><td>SHOULD NOT</td><td>SHOULD NOT</td></tr>
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* <tr><td><i>thread</i></td> <td>OPTIONAL</td><td>SHOULD</td><td>OPTIONAL</td><td>OPTIONAL</td><td>SHOULD NOT</td></tr>
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* <tr><td><i>body</i></td> <td>SHOULD</td><td>SHOULD</td><td>SHOULD</td><td>SHOULD</td><td>SHOULD NOT</td></tr>
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* <tr><td><i>error</i></td> <td>MUST NOT</td><td>MUST NOT</td><td>MUST NOT</td><td>MUST NOT</td><td>MUST</td></tr>
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* </table>
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*
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* @author Matt Tucker
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*/
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public class Message extends Packet {
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private Type type = Type.NORMAL;
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private String subject = null;
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private String body = null;
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private String thread = null;
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/**
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* Creates a new, "normal" message.
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*/
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public Message() {
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}
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/**
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* Creates a new "normal" message to the specified recipient.
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*
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* @param to the recipient of the message.
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*/
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public Message(String to) {
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if (to == null) {
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throw new IllegalArgumentException("Parameter cannot be null");
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}
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setTo(to);
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}
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/**
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* Creates a new message of the specified type to a recipient.
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*
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* @param to the user to send the message to.
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* @param type the message type.
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*/
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public Message(String to, Type type) {
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if (to == null || type == null) {
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throw new IllegalArgumentException("Parameters cannot be null.");
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}
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setTo(to);
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this.type = type;
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}
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/**
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* Returns the type of the message.
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*
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* @return the type of the message.
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*/
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public Type getType() {
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return type;
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}
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/**
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* Sets the type of the message.
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*
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* @param type the type of the message.
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*/
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public void setType(Type type) {
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if (type == null) {
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throw new IllegalArgumentException("Type cannot be null.");
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}
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this.type = type;
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}
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/**
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* Returns the subject of the message, or null if the subject has not been set.
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* The subject is a short description of message contents.
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*
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* @return the subject of the message.
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*/
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public String getSubject() {
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return subject;
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}
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/**
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* Sets the subject of the message. The subject is a short description of
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* message contents.
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*
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* @param subject the subject of the message.
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*/
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public void setSubject(String subject) {
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this.subject = subject;
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}
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/**
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* Returns the body of the message, or null if the body has not been set. The body
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* is the main message contents.
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*
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* @return the body of the message.
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*/
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public String getBody() {
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return body;
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}
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/**
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* Sets the body of the message. The body is the main message contents.
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* @param body
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*/
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public void setBody(String body) {
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this.body = body;
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}
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/**
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* Returns the thread id of the message, which is a unique identifier for a sequence
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* of "chat" messages. If no thread id is set, <tt>null</tt> will be returned.
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*
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* @return the thread id of the message, or <tt>null</tt> if it doesn't exist.
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*/
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public String getThread() {
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return thread;
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}
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/**
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* Sets the thread id of the message, which is a unique identifier for a sequence
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* of "chat" messages.
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*
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* @param thread the thread id of the message.
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*/
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public void setThread(String thread) {
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this.thread = thread;
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}
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public String toXML() {
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StringBuffer buf = new StringBuffer();
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buf.append("<message");
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if (getPacketID() != null) {
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buf.append(" id=\"").append(getPacketID()).append("\"");
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}
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if (getTo() != null) {
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buf.append(" to=\"").append(StringUtils.escapeForXML(getTo())).append("\"");
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}
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if (getFrom() != null) {
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buf.append(" from=\"").append(StringUtils.escapeForXML(getFrom())).append("\"");
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}
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if (type != Type.NORMAL) {
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buf.append(" type=\"").append(type).append("\"");
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}
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buf.append(">");
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if (subject != null) {
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buf.append("<subject>").append(StringUtils.escapeForXML(subject)).append("</subject>");
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}
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if (body != null) {
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buf.append("<body>").append(StringUtils.escapeForXML(body)).append("</body>");
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}
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if (thread != null) {
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buf.append("<thread>").append(thread).append("</thread>");
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}
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// Append the error subpacket if the message type is an error.
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if (type == Type.ERROR) {
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XMPPError error = getError();
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if (error != null) {
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buf.append(error.toXML());
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}
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}
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// Add packet extensions, if any are defined.
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buf.append(getExtensionsXML());
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buf.append("</message>");
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return buf.toString();
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}
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/**
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* Represents the type of a message.
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*/
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public static class Type {
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/**
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* (Default) a normal text message used in email like interface.
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*/
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public static final Type NORMAL = new Type("normal");
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/**
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* Typically short text message used in line-by-line chat interfaces.
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*/
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public static final Type CHAT = new Type("chat");
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/**
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* Chat message sent to a groupchat server for group chats.
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*/
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public static final Type GROUP_CHAT = new Type("groupchat");
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/**
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* Text message to be displayed in scrolling marquee displays.
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*/
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public static final Type HEADLINE = new Type("headline");
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/**
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* indicates a messaging error.
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*/
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public static final Type ERROR = new Type("error");
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/**
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* Converts a String value into its Type representation.
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*
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* @param type the String value.
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* @return the Type corresponding to the String.
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*/
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public static Type fromString(String type) {
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if (type == null) {
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return NORMAL;
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}
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type = type.toLowerCase();
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if (CHAT.toString().equals(type)) {
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return CHAT;
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}
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else if (GROUP_CHAT.toString().equals(type)) {
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return GROUP_CHAT;
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}
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else if (HEADLINE.toString().equals(type)) {
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return HEADLINE;
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}
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else if (ERROR.toString().equals(type)) {
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return ERROR;
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}
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else {
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return NORMAL;
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}
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}
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private String value;
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private Type(String value) {
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this.value = value;
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}
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public String toString() {
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return value;
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}
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}
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} |