95 lines
3.2 KiB
Java
95 lines
3.2 KiB
Java
/**
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*
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* Copyright 2014 Georg Lukas.
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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.iqversion;
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import java.util.Collections;
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import java.util.Map;
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import java.util.WeakHashMap;
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import org.jivesoftware.smack.XMPPConnection;
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import org.jivesoftware.smack.Manager;
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import org.jivesoftware.smack.PacketListener;
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import org.jivesoftware.smack.filter.AndFilter;
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import org.jivesoftware.smack.filter.IQTypeFilter;
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import org.jivesoftware.smack.filter.PacketTypeFilter;
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import org.jivesoftware.smack.packet.IQ.Type;
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import org.jivesoftware.smack.packet.Packet;
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import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
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import org.jivesoftware.smackx.iqversion.packet.Version;
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/**
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* A Version Manager that automatically responds to version IQs with a predetermined reply.
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*
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* <p>
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* The VersionManager takes care of handling incoming version request IQs, according to
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* XEP-0092 (Software Version). You can configure the version reply for a given connection
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* by running the following code:
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* </p>
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*
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* <pre>
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* Version MY_VERSION = new Version("My Little XMPP Application", "v1.23", "OS/2 32-bit");
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* VersionManager.getInstanceFor(mConnection).setVersion(MY_VERSION);
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* </pre>
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*
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* @author Georg Lukas
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*/
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public class VersionManager extends Manager {
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private static final Map<XMPPConnection, VersionManager> instances =
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Collections.synchronizedMap(new WeakHashMap<XMPPConnection, VersionManager>());
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private Version own_version;
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private VersionManager(final XMPPConnection connection) {
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super(connection);
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instances.put(connection, this);
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ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
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sdm.addFeature(Version.NAMESPACE);
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connection.addPacketListener(new PacketListener() {
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/**
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* Sends a Version reply on request
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*/
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public void processPacket(Packet packet) {
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if (own_version == null)
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return;
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Version reply = new Version(own_version);
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reply.setPacketID(packet.getPacketID());
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reply.setTo(packet.getFrom());
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connection().sendPacket(reply);
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}
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}
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, new AndFilter(new PacketTypeFilter(Version.class), new IQTypeFilter(Type.GET)));
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}
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public static synchronized VersionManager getInstanceFor(XMPPConnection connection) {
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VersionManager versionManager = instances.get(connection);
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if (versionManager == null) {
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versionManager = new VersionManager(connection);
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}
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return versionManager;
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}
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public void setVersion(Version v) {
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own_version = v;
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}
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}
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