/** * $RCSfile$ * $Revision$ * $Date$ * * Copyright (C) 2002-2003 Jive Software. All rights reserved. * ==================================================================== * The Jive Software License (based on Apache Software License, Version 1.1) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by * Jive Software (http://www.jivesoftware.com)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Smack" and "Jive Software" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please * contact webmaster@jivesoftware.com. * * 5. Products derived from this software may not be called "Smack", * nor may "Smack" appear in their name, without prior written * permission of Jive Software. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== */ package org.jivesoftware.smack.packet; import org.jivesoftware.smack.util.StringUtils; /** * Represents XMPP message packets. A message can be one of several types: * * * * For each message type, different message fields are typically used as follows: *

* * * * * * * *
 Message type
FieldNormalChatGroup ChatHeadlineXMPPError
subject SHOULDSHOULD NOTSHOULD NOTSHOULD NOTSHOULD NOT
thread OPTIONALSHOULDOPTIONALOPTIONALSHOULD NOT
body SHOULDSHOULDSHOULDSHOULDSHOULD NOT
error MUST NOTMUST NOTMUST NOTMUST NOTMUST
* * @author Matt Tucker */ public class Message extends Packet { public static final Type NORMAL = new Type("normal"); public static final Type CHAT = new Type("chat"); public static final Type GROUP_CHAT = new Type("groupchat"); public static final Type HEADLINE = new Type("headline"); public static final Type ERROR = new Type("error"); private Type type = NORMAL; private String subject = null; private String body = null; private String thread = null; /** * Creates a new, "normal" message. */ public Message() { } /** * Creates a new "normal" message to the specified recipient. * * @param to the recipient of the message. */ public Message(String to) { setTo(to); } /** * Creates a new message of the specified type to a recipient. * * @param to the user to send the message to. * @param type the message type. */ public Message(String to, Type type) { if (to == null || type == null) { throw new IllegalArgumentException("Parameters cannot be null."); } setTo(to); this.type = type; } /** * Returns the type of the message. * * @return the type of the message. */ public Type getType() { return type; } /** * Sets the type of the message. * * @param type the type of the message. */ public void setType(Type type) { if (type == null) { throw new IllegalArgumentException("Type cannot be null."); } this.type = type; } /** * Returns the subject of the message, or null if the subject has not been set. * The subject is a short description of message contents. * * @return the subject of the message. */ public String getSubject() { return subject; } /** * Sets the subject of the message. The subject is a short description of * message contents. * * @param subject the subject of the message. */ public void setSubject(String subject) { this.subject = subject; } /** * Returns the body of the message, or null if the body has not been set. The body * is the main message contents. * * @return the body of the message. */ public String getBody() { return body; } /** * Sets the body of the message. The body is the main message contents. * @param body */ public void setBody(String body) { this.body = body; } /** * Returns the thread id of the message, which is a unique identifier for a sequence * of "chat" messages. * * @return the thread id of the message. */ public String getThread() { return thread; } /** * Sets the thread id of the message, which is a unique identifier for a sequence * of "chat" messages. * * @param thread the thread id of the message. */ public void setThread(String thread) { this.thread = thread; } /** * Returns the message as XML. * * @return the message as XML. */ public String toXML() { StringBuffer buf = new StringBuffer(); buf.append(""); if (subject != null) { buf.append("").append(StringUtils.escapeForXML(subject)).append(""); } if (body != null) { buf.append("").append(StringUtils.escapeForXML(body)).append(""); } if (thread != null) { buf.append("").append(thread).append(""); } // Append the error subpacket if the message type is an error. if (type == ERROR) { XMPPError error = getError(); if (error != null) { buf.append(error.toXML()); } } String properties = getPropertiesXML(); if (properties != null) { buf.append(properties); } buf.append(""); return buf.toString(); } /** * Represents the type of a message. */ public static class Type { public static Type fromString(String type) { if (CHAT.toString().equals(type)) { return CHAT; } else if (GROUP_CHAT.toString().equals(type)) { return GROUP_CHAT; } else if (HEADLINE.toString().equals(type)) { return HEADLINE; } else if (ERROR.toString().equals(type)) { return ERROR; } else { return NORMAL; } } private String value; private Type(String value) { this.value = value; } public String toString() { return value; } } }