298 lines
9.3 KiB
Java
298 lines
9.3 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 (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@coolservlets.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.*;
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/**
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* Represents XMPP presence packets. Every presence packet has a type, while a
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* number of attributes are optional:
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* <ul>
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* <li>Status -- free-form text describing a user's presence (i.e., gone to lunch).
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* <li>Priority -- non-negative numerical priority of a sender's resource. The
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* highest resource priority is the default recipient of packets not addressed
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* to a particular resource.
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* <li>Mode -- one of four presence modes: chat, away, xa (extended away, and
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* dnd (do not disturb).
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* </ul>
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*
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* Presence packets are used for two purposes. First, to notify the server of our
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* the clients current presence status. Second, they are used to subscribe and
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* unsubscribe users from the roster.
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*
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* @see Roster
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* @author Matt Tucker
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*/
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public class Presence extends Packet {
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private Type type = Type.AVAILABLE;
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private String status = null;
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private int priority = -1;
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private Mode mode = null;
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/**
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* Creates a new presence update. Status, priority, and mode are left un-set.
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*
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* @param type the type.
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*/
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public Presence(Type type) {
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this.type = type;
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}
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/**
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* Creates a new presence update with a specified status, priority, and mode.
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*
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* @param type the type.
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* @param status a text message describing the presence update.
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* @param priority the priority of this presence update.
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* @param mode the mode type for this presence update.
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*/
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public Presence(Type type, String status, int priority, Mode mode) {
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this.type = type;
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this.status = status;
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this.priority = priority;
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this.mode = mode;
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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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public void setType(Type type) {
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this.type = type;
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}
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/**
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* Returns the status message of the presence update, or <tt>null</tt> if there
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* is not status. The status is free-form text describing a user's presence
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* (i.e., "gone to lunch").
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*
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* @return the status message.
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*/
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public String getStatus() {
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return status;
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}
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/**
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* Sets the status message of the presence update. The status is free-form text
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* describing a user's presence (i.e., gone to lunch).
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*
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* @param status the status message.
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*/
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public void setStatus(String status) {
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this.status = status;
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}
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/**
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* Returns the priority of the presence, or -1 if no priority has been set.
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*
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* @return the priority.
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*/
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public int getPriority() {
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return priority;
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}
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/**
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* Sets the priority of the presence.
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*
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* @param priority the priority of the presence.
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*/
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public void setPriority(int priority) {
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this.priority = priority;
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}
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/**
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* Returns the mode of the presence update, or <tt>null</tt> if no mode has been set.
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*
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* @return the mode.
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*/
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public Mode getMode() {
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return mode;
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}
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/**
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* Sets the mode of the presence update.
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*
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* @param mode the mode.
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*/
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public void setMode(Mode mode) {
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this.mode = mode;
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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("<presence ");
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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(getTo()).append("\" ");
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}
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if (getFrom() != null) {
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buf.append("from=\"").append(getFrom()).append("\" ");
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}
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buf.append("type=\"").append(type).append("\">");
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if (status != null) {
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buf.append("<status>").append(status).append("</status>");
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}
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if (priority != -1) {
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buf.append("<priority>").append(priority).append("</priority>");
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}
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if (mode != null) {
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buf.append("<show>").append(mode).append("</show>");
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}
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buf.append("</presence>");
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return buf.toString();
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}
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/**
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* A typsafe enum class to represent the presecence type.
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*/
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public static class Type {
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public static final Type AVAILABLE = new Type("available");
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public static final Type UNAVAILABLE = new Type("unavailable");
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public static final Type SUBSCRIBE = new Type("subscribe");
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public static final Type SUBSCRIBED = new Type("subscribed");
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public static final Type UNSUBSCRIBE = new Type("unsubscribe");
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public static final Type UNSUBSCRIBED = new Type("unsubscribed");
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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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* Returns the type constant associated with the String value.
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*/
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public static Type fromString(String value) {
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if ("available".equals(value)) {
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return AVAILABLE;
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}
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else if ("unavailable".equals(value)) {
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return UNAVAILABLE;
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}
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else if ("subscribe".equals(value)) {
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return SUBSCRIBE;
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}
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else if ("subscribed".equals(value)) {
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return SUBSCRIBED;
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}
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else if ("unsubscribe".equals(value)) {
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return UNSUBSCRIBE;
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}
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else if ("unsubscribed".equals(value)) {
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return UNSUBSCRIBED;
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}
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// Default to available.
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else {
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return AVAILABLE;
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}
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}
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}
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/**
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* A typsafe enum class to represent the presecence mode.
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*/
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public static class Mode {
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public static final Mode CHAT = new Mode("chat");
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public static final Mode AWAY = new Mode("away");
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public static final Mode EXTENDED_AWAY = new Mode("xa");
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public static final Mode DO_NOT_DISTURB = new Mode("dnd");
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public static final Mode INVISIBLE = new Mode("invisible");
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private String value;
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private Mode(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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* Returns the mode constant associated with the String value.
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*/
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public static Mode fromString(String value) {
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if (value == null) {
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return null;
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}
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else if (value.equals("chat")) {
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return CHAT;
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}
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else if (value.equals("away")) {
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return AWAY;
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}
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else if (value.equals("xa")) {
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return EXTENDED_AWAY;
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}
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else if (value.equals("dnd")) {
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return DO_NOT_DISTURB;
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}
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else if (value.equals("invisible")) {
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return INVISIBLE;
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}
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else {
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return null;
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}
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}
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}
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}
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