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147 lines
4.9 KiB
Java
147 lines
4.9 KiB
Java
/**
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*
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* Copyright 2003-2007 Jive Software.
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*
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* 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.smackx.muc.packet;
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import java.io.IOException;
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import org.jivesoftware.smack.packet.ExtensionElement;
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import org.jivesoftware.smack.packet.Stanza;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.provider.ExtensionElementProvider;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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/**
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* A group chat invitation stanza extension, which is used to invite other
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* users to a group chat room. To invite a user to a group chat room, address
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* a new message to the user and set the room name appropriately, as in the
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* following code example:
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*
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* <pre>
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* Message message = new Message("user@chat.example.com");
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* message.setBody("Join me for a group chat!");
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* message.addExtension(new GroupChatInvitation("room@chat.example.com"););
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* con.sendStanza(message);
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* </pre>
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*
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* To listen for group chat invitations, use a StanzaExtensionFilter for the
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* <code>x</code> element name and <code>jabber:x:conference</code> namespace, as in the
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* following code example:
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*
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* <pre>
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* PacketFilter filter = new StanzaExtensionFilter("x", "jabber:x:conference");
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* // Create a stanza collector or stanza listeners using the filter...
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* </pre>
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*
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* <b>Note</b>: this protocol is outdated now that the Multi-User Chat (MUC) XEP is available
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* (<a href="http://www.xmpp.org/extensions/jep-0045.html">XEP-45</a>). However, most
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* existing clients still use this older protocol. Once MUC support becomes more
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* widespread, this API may be deprecated.
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*
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* @author Matt Tucker
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*/
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public class GroupChatInvitation implements ExtensionElement {
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/**
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* Element name of the stanza extension.
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*/
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public static final String ELEMENT = "x";
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/**
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* Namespace of the stanza extension.
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*/
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public static final String NAMESPACE = "jabber:x:conference";
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private final String roomAddress;
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/**
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* Creates a new group chat invitation to the specified room address.
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* GroupChat room addresses are in the form <code>room@service</code>,
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* where <code>service</code> is the name of group chat server, such as
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* <code>chat.example.com</code>.
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*
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* @param roomAddress the address of the group chat room.
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*/
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public GroupChatInvitation(String roomAddress) {
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this.roomAddress = roomAddress;
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}
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/**
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* Returns the address of the group chat room. GroupChat room addresses
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* are in the form <code>room@service</code>, where <code>service</code> is
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* the name of group chat server, such as <code>chat.example.com</code>.
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*
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* @return the address of the group chat room.
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*/
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public String getRoomAddress() {
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return roomAddress;
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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@Override
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public String getNamespace() {
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return NAMESPACE;
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}
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@Override
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public XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
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XmlStringBuilder xml = new XmlStringBuilder(this);
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xml.attribute("jid", getRoomAddress());
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xml.closeEmptyElement();
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return xml;
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}
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/**
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* Deprecated.
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* @param packet TODO javadoc me please
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* @return the GroupChatInvitation or null
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* @deprecated use {@link #from(Stanza)} instead
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*/
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@Deprecated
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public static GroupChatInvitation getFrom(Stanza packet) {
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return from(packet);
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}
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/**
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* Get the group chat invitation from the given stanza.
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* @param packet TODO javadoc me please
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* @return the GroupChatInvitation or null
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*/
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public static GroupChatInvitation from(Stanza packet) {
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return packet.getExtension(ELEMENT, NAMESPACE);
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}
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public static class Provider extends ExtensionElementProvider<GroupChatInvitation> {
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@Override
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public GroupChatInvitation parse(XmlPullParser parser,
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int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException,
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IOException {
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String roomAddress = parser.getAttributeValue("", "jid");
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// Advance to end of extension.
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parser.next();
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return new GroupChatInvitation(roomAddress);
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}
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}
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}
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