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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@2408 b35dd754-fafc-0310-a699-88a17e54d16e
273 lines
8.3 KiB
Java
273 lines
8.3 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 2003-2004 Jive Software.
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*
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* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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 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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} |