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SMACK-412 Abstracted the keepalive implementation and set the thread to start and stop on demand.
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_3_0@13610 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
parent
b4432d7627
commit
3a4b05ac00
6 changed files with 213 additions and 109 deletions
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@ -24,7 +24,7 @@
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<startupClasses>
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<className>org.jivesoftware.smackx.ServiceDiscoveryManager</className>
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<className>org.jivesoftware.smack.PrivacyListManager</className>
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<className>org.jivesoftware.smack.ping.ServerPingManager</className>
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<className>org.jivesoftware.smack.keepalive.KeepAliveManager</className>
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<className>org.jivesoftware.smackx.XHTMLManager</className>
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<className>org.jivesoftware.smackx.muc.MultiUserChat</className>
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<className>org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamManager</className>
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@ -34,7 +34,7 @@
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<className>org.jivesoftware.smack.ReconnectionManager</className>
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<className>org.jivesoftware.smackx.commands.AdHocCommandManager</className>
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<className>org.jivesoftware.smack.util.dns.JavaxResolver</className>
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<className>org.jivesoftware.smackx.ping.PingManager</className>
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</startupClasses>
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</smack>
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@ -14,13 +14,14 @@
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* limitations under the License.
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*/
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package org.jivesoftware.smack.ping;
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package org.jivesoftware.smack.keepalive;
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import java.util.Collections;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import java.util.WeakHashMap;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.ScheduledFuture;
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import java.util.concurrent.ScheduledThreadPoolExecutor;
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@ -33,17 +34,11 @@ import org.jivesoftware.smack.ConnectionListener;
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import org.jivesoftware.smack.PacketCollector;
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import org.jivesoftware.smack.PacketListener;
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import org.jivesoftware.smack.SmackConfiguration;
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import org.jivesoftware.smack.XMPPException;
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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.PacketFilter;
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import org.jivesoftware.smack.filter.PacketIDFilter;
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import org.jivesoftware.smack.filter.PacketTypeFilter;
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import org.jivesoftware.smack.packet.IQ;
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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.smack.ping.PingFailedListener;
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import org.jivesoftware.smack.ping.packet.Ping;
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import org.jivesoftware.smackx.ServiceDiscoveryManager;
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/**
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* Using an implementation of <a href="http://www.xmpp.org/extensions/xep-0199.html">XMPP Ping (XEP-0199)</a>. This
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@ -56,25 +51,15 @@ import org.jivesoftware.smackx.ServiceDiscoveryManager;
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*
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* @author Florian Schmaus
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*/
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public class ServerPingManager {
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private static Map<Connection, ServerPingManager> instances = Collections
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.synchronizedMap(new WeakHashMap<Connection, ServerPingManager>());
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private static long defaultPingInterval = SmackConfiguration.getKeepAliveInterval();
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private static ScheduledExecutorService periodicPingExecutorService = new ScheduledThreadPoolExecutor(1, new ThreadFactory() {
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@Override
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public Thread newThread(Runnable runnable) {
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Thread pingThread = new Thread(runnable, "Smack Server Ping");
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pingThread.setDaemon(true);
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return pingThread;
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}
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});
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public class KeepAliveManager {
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private static Map<Connection, KeepAliveManager> instances = new HashMap<Connection, KeepAliveManager>();
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private static volatile ScheduledExecutorService periodicPingExecutorService;
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static {
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if (defaultPingInterval > 0) {
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if (SmackConfiguration.getKeepAliveInterval() > 0) {
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Connection.addConnectionCreationListener(new ConnectionCreationListener() {
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public void connectionCreated(Connection connection) {
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new ServerPingManager(connection);
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new KeepAliveManager(connection);
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}
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});
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}
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@ -87,56 +72,94 @@ public class ServerPingManager {
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private volatile long lastSuccessfulContact = -1;
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/**
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* Retrieves a {@link ServerPingManager} for the specified {@link Connection}, creating one if it doesn't already
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* Retrieves a {@link KeepAliveManager} for the specified {@link Connection}, creating one if it doesn't already
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* exist.
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*
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* @param connection
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* The connection the manager is attached to.
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* @return The new or existing manager.
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*/
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public synchronized static ServerPingManager getInstanceFor(Connection connection) {
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ServerPingManager pingManager = instances.get(connection);
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public synchronized static KeepAliveManager getInstanceFor(Connection connection) {
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KeepAliveManager pingManager = instances.get(connection);
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if (pingManager == null) {
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pingManager = new ServerPingManager(connection);
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pingManager = new KeepAliveManager(connection);
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instances.put(connection, pingManager);
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}
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return pingManager;
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}
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private ServerPingManager(Connection connection) {
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ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
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sdm.addFeature(Ping.NAMESPACE);
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/*
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* Start the executor service if it hasn't been started yet.
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*/
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private synchronized static void enableExecutorService() {
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if (periodicPingExecutorService == null) {
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periodicPingExecutorService = new ScheduledThreadPoolExecutor(1, new ThreadFactory() {
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@Override
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public Thread newThread(Runnable runnable) {
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Thread pingThread = new Thread(runnable, "Smack Keepalive");
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pingThread.setDaemon(true);
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return pingThread;
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}
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});
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}
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}
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/*
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* Stop the executor service if all monitored connections are disconnected.
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*/
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private synchronized static void handleDisconnect(Connection con) {
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if (periodicPingExecutorService != null) {
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instances.remove(con);
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if (instances.isEmpty()) {
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periodicPingExecutorService.shutdownNow();
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periodicPingExecutorService = null;
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}
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}
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}
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private KeepAliveManager(Connection connection) {
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this.connection = connection;
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init();
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handleConnect();
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}
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/*
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* Call after every connection to add the packet listener.
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*/
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private void handleConnect() {
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// Listen for all incoming packets and reset the scheduled ping whenever
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// one arrives.
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connection.addPacketListener(new PacketListener() {
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@Override
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public void processPacket(Packet packet) {
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// reschedule the ping based on this last server contact
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lastSuccessfulContact = System.currentTimeMillis();
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schedulePingServerTask();
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}
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}, null);
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}
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private void init() {
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PacketFilter pingPacketFilter = new AndFilter(new PacketTypeFilter(Ping.class), new IQTypeFilter(Type.GET));
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connection.addPacketListener(new PacketListener() {
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/**
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* Sends a Pong for every Ping
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*/
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public void processPacket(Packet packet) {
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IQ pong = IQ.createResultIQ((Ping) packet);
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connection.sendPacket(pong);
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}
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}, pingPacketFilter);
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connection.addConnectionListener(new ConnectionListener() {
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@Override
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public void connectionClosed() {
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stopPingServerTask();
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handleDisconnect(connection);
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}
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@Override
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public void connectionClosedOnError(Exception arg0) {
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stopPingServerTask();
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handleDisconnect(connection);
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}
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@Override
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public void reconnectionSuccessful() {
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handleConnect();
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schedulePingServerTask();
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}
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@ -149,17 +172,6 @@ public class ServerPingManager {
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}
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});
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// Listen for all incoming packets and reset the scheduled ping whenever
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// one arrives.
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connection.addPacketListener(new PacketListener() {
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@Override
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public void processPacket(Packet packet) {
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// reschedule the ping based on this last server contact
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lastSuccessfulContact = System.currentTimeMillis();
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schedulePingServerTask();
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}
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}, null);
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instances.put(connection, this);
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schedulePingServerTask();
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}
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@ -171,15 +183,20 @@ public class ServerPingManager {
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* The new ping time interval in milliseconds.
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*/
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public void setPingInterval(long newPingInterval) {
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if (pingInterval != newPingInterval) {
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pingInterval = newPingInterval;
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if (pingInterval == newPingInterval)
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return;
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if (pingInterval < 0) {
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stopPinging();
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}
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else {
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schedulePingServerTask();
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}
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// Enable the executor service
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if (newPingInterval > 0)
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enableExecutorService();
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pingInterval = newPingInterval;
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if (pingInterval < 0) {
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stopPinging();
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}
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else {
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schedulePingServerTask();
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}
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}
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@ -227,12 +244,20 @@ public class ServerPingManager {
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}
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/**
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* Returns the time of the last successful contact with the server. (i.e. the last time any message was received).
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* Returns the elapsed time (in milliseconds) since the last successful contact with the server
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* (i.e. the last time any message was received).
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* <p>
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* <b>Note</b>: Result is -1 if no message has been received since manager was created and
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* 0 if the elapsed time is negative due to a clock reset.
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*
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* @return Time of last message or -1 if none has been received since manager was created.
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* @return Elapsed time since last message was received.
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*/
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public long getLastSuccessfulContact() {
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return lastSuccessfulContact;
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public long getTimeSinceLastContact() {
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if (lastSuccessfulContact == -1)
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return lastSuccessfulContact;
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long delta = System.currentTimeMillis() - lastSuccessfulContact;
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return (delta < 0) ? 0 : delta;
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}
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/**
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@ -242,6 +267,7 @@ public class ServerPingManager {
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* This is designed so only one executor is used for scheduling all pings on all connections. This results in only 1 thread used for pinging.
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*/
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private synchronized void schedulePingServerTask() {
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enableExecutorService();
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stopPingServerTask();
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if (pingInterval > 0) {
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@ -16,11 +16,25 @@
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package org.jivesoftware.smackx.ping;
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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 java.util.concurrent.ScheduledExecutorService;
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import org.jivesoftware.smack.Connection;
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import org.jivesoftware.smack.ConnectionCreationListener;
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import org.jivesoftware.smack.PacketListener;
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import org.jivesoftware.smack.SmackConfiguration;
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import org.jivesoftware.smack.SmackError;
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import org.jivesoftware.smack.XMPPException;
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import org.jivesoftware.smack.ping.ServerPingManager;
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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.PacketFilter;
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import org.jivesoftware.smack.filter.PacketTypeFilter;
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import org.jivesoftware.smack.keepalive.KeepAliveManager;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smack.packet.Packet;
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import org.jivesoftware.smack.packet.IQ.Type;
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import org.jivesoftware.smack.ping.packet.Ping;
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import org.jivesoftware.smack.util.SyncPacketSend;
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import org.jivesoftware.smackx.ServiceDiscoveryManager;
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@ -31,7 +45,7 @@ import org.jivesoftware.smackx.packet.DiscoverInfo;
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* allows one entity to 'ping' any other entity by simply sending a ping to
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* the appropriate JID.
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* <p>
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* NOTE: The {@link ServerPingManager} already provides a keepalive functionality
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* NOTE: The {@link KeepAliveManager} already provides a keepalive functionality
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* for regularly pinging the server to keep the underlying transport connection
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* alive. This class is specifically intended to do manual pings of other
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* entities.
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@ -41,12 +55,57 @@ import org.jivesoftware.smackx.packet.DiscoverInfo;
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* Ping</a>
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*/
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public class PingManager {
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private static Map<Connection, PingManager> instances = Collections
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.synchronizedMap(new WeakHashMap<Connection, PingManager>());
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static {
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Connection.addConnectionCreationListener(new ConnectionCreationListener() {
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public void connectionCreated(Connection connection) {
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new PingManager(connection);
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}
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});
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}
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private Connection connection;
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public PingManager(Connection connection) {
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/**
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* Retrieves a {@link PingManager} for the specified {@link Connection}, creating one if it doesn't already
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* exist.
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*
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* @param connection
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* The connection the manager is attached to.
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* @return The new or existing manager.
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*/
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public synchronized static PingManager getInstanceFor(Connection connection) {
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PingManager pingManager = instances.get(connection);
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if (pingManager == null) {
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pingManager = new PingManager(connection);
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}
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return pingManager;
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}
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private PingManager(Connection con) {
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this.connection = con;
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ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
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// The ServiceDiscoveryManager was not pre-initialized
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if (sdm == null)
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sdm = new ServiceDiscoveryManager(connection);
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sdm.addFeature(Ping.NAMESPACE);
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this.connection = connection;
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PacketFilter pingPacketFilter = new AndFilter(new PacketTypeFilter(Ping.class), new IQTypeFilter(Type.GET));
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connection.addPacketListener(new PacketListener() {
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/**
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* Sends a Pong for every Ping
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*/
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public void processPacket(Packet packet) {
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IQ pong = IQ.createResultIQ((Ping) packet);
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connection.sendPacket(pong);
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}
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}, pingPacketFilter);
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}
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/**
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@ -49,6 +49,7 @@ public class DummyConnection extends Connection {
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private boolean authenticated = false;
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private boolean anonymous = false;
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private boolean reconnect = false;
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private String user;
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private String connectionID;
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@Override
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public void connect() throws XMPPException {
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connectionID = "dummy-" + new Random(new Date().getTime()).nextInt();
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if (reconnect) {
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for (ConnectionListener listener : getConnectionListeners()) {
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listener.reconnectionSuccessful();
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}
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}
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}
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@Override
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@ -80,6 +87,11 @@ public class DummyConnection extends Connection {
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roster = null;
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authenticated = false;
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anonymous = false;
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for (ConnectionListener listener : getConnectionListeners()) {
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listener.connectionClosed();
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}
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reconnect = true;
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}
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@Override
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@ -1,4 +1,4 @@
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package org.jivesoftware.smack.ping;
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package org.jivesoftware.smack.keepalive;
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import static org.custommonkey.xmlunit.XMLAssert.assertXMLEqual;
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import static org.junit.Assert.assertEquals;
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@ -17,8 +17,10 @@ import org.jivesoftware.smack.TestUtils;
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import org.jivesoftware.smack.ThreadedDummyConnection;
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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.keepalive.KeepAliveManager;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smack.packet.Packet;
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import org.jivesoftware.smack.ping.PingFailedListener;
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import org.jivesoftware.smack.ping.packet.Ping;
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import org.jivesoftware.smack.util.PacketParserUtils;
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import org.junit.After;
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@ -40,6 +42,7 @@ public class KeepaliveTest {
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@Before
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public void resetProperties()
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{
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SmackConfiguration.setKeepAliveInterval(-1);
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originalTimeout = SmackConfiguration.getPacketReplyTimeout();
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SmackConfiguration.setPacketReplyTimeout(1000);
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}
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@ -56,7 +59,7 @@ public class KeepaliveTest {
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public void validatePingStanzaXML() throws Exception {
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// @formatter:off
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String control = "<iq to='juliet@capulet.lit/balcony' id='s2c1' type='get'>"
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+ "<ping xmlns='urn:xmpp:ping'/>" + "</iq>";
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+ "<ping xmlns='urn:xmpp:ping'/></iq>";
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// @formatter:on
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Ping ping = new Ping(TO);
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@ -65,29 +68,6 @@ public class KeepaliveTest {
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assertXMLEqual(control, ping.toXML());
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}
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@Test
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public void checkProvider() throws Exception {
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// @formatter:off
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String control = "<iq from='capulet.lit' to='juliet@capulet.lit/balcony' id='s2c1' type='get'>"
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+ "<ping xmlns='urn:xmpp:ping'/>" + "</iq>";
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// @formatter:on
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DummyConnection con = new DummyConnection();
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IQ pingRequest = PacketParserUtils.parseIQ(TestUtils.getIQParser(control), con);
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assertTrue(pingRequest instanceof Ping);
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con.processPacket(pingRequest);
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|
||||
Packet pongPacket = con.getSentPacket();
|
||||
assertTrue(pongPacket instanceof IQ);
|
||||
|
||||
IQ pong = (IQ) pongPacket;
|
||||
assertEquals("juliet@capulet.lit/balcony", pong.getFrom());
|
||||
assertEquals("capulet.lit", pong.getTo());
|
||||
assertEquals("s2c1", pong.getPacketID());
|
||||
assertEquals(IQ.Type.RESULT, pong.getType());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void serverPingFailSingleConnection() throws Exception {
|
||||
DummyConnection connection = getConnection();
|
||||
|
@ -138,7 +118,7 @@ public class KeepaliveTest {
|
|||
}
|
||||
|
||||
private void addPingFailedListener(DummyConnection con, final CountDownLatch latch) {
|
||||
ServerPingManager manager = ServerPingManager.getInstanceFor(con);
|
||||
KeepAliveManager manager = KeepAliveManager.getInstanceFor(con);
|
||||
manager.addPingFailedListener(new PingFailedListener() {
|
||||
@Override
|
||||
public void pingFailed() {
|
||||
|
@ -149,7 +129,7 @@ public class KeepaliveTest {
|
|||
|
||||
private DummyConnection getConnection() {
|
||||
DummyConnection con = new DummyConnection();
|
||||
ServerPingManager mgr = ServerPingManager.getInstanceFor(con);
|
||||
KeepAliveManager mgr = KeepAliveManager.getInstanceFor(con);
|
||||
mgr.setPingInterval(PING_MINIMUM);
|
||||
|
||||
return con;
|
||||
|
@ -157,7 +137,7 @@ public class KeepaliveTest {
|
|||
|
||||
private ThreadedDummyConnection getThreadedConnection() {
|
||||
ThreadedDummyConnection con = new ThreadedDummyConnection();
|
||||
ServerPingManager mgr = ServerPingManager.getInstanceFor(con);
|
||||
KeepAliveManager mgr = KeepAliveManager.getInstanceFor(con);
|
||||
mgr.setPingInterval(PING_MINIMUM);
|
||||
|
||||
return con;
|
|
@ -38,10 +38,37 @@ public class PingTest {
|
|||
threadedCon = new ThreadedDummyConnection();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void checkProvider() throws Exception {
|
||||
// @formatter:off
|
||||
String control = "<iq from='capulet.lit' to='juliet@capulet.lit/balcony' id='s2c1' type='get'>"
|
||||
+ "<ping xmlns='urn:xmpp:ping'/>"
|
||||
+ "</iq>";
|
||||
// @formatter:on
|
||||
DummyConnection con = new DummyConnection();
|
||||
|
||||
// Enable ping for this connection
|
||||
PingManager.getInstanceFor(con);
|
||||
IQ pingRequest = PacketParserUtils.parseIQ(TestUtils.getIQParser(control), con);
|
||||
|
||||
assertTrue(pingRequest instanceof Ping);
|
||||
|
||||
con.processPacket(pingRequest);
|
||||
|
||||
Packet pongPacket = con.getSentPacket();
|
||||
assertTrue(pongPacket instanceof IQ);
|
||||
|
||||
IQ pong = (IQ) pongPacket;
|
||||
assertEquals("juliet@capulet.lit/balcony", pong.getFrom());
|
||||
assertEquals("capulet.lit", pong.getTo());
|
||||
assertEquals("s2c1", pong.getPacketID());
|
||||
assertEquals(IQ.Type.RESULT, pong.getType());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void checkSendingPing() throws Exception {
|
||||
dummyCon = new DummyConnection();
|
||||
PingManager pinger = new PingManager(dummyCon);
|
||||
PingManager pinger = PingManager.getInstanceFor(dummyCon);
|
||||
pinger.ping("test@myserver.com");
|
||||
|
||||
Packet sentPacket = dummyCon.getSentPacket();
|
||||
|
@ -54,7 +81,7 @@ public class PingTest {
|
|||
public void checkSuccessfulPing() throws Exception {
|
||||
threadedCon = new ThreadedDummyConnection();
|
||||
|
||||
PingManager pinger = new PingManager(threadedCon);
|
||||
PingManager pinger = PingManager.getInstanceFor(threadedCon);
|
||||
|
||||
boolean pingSuccess = pinger.ping("test@myserver.com");
|
||||
|
||||
|
@ -69,7 +96,7 @@ public class PingTest {
|
|||
@Test
|
||||
public void checkFailedPingOnTimeout() throws Exception {
|
||||
dummyCon = new DummyConnection();
|
||||
PingManager pinger = new PingManager(dummyCon);
|
||||
PingManager pinger = PingManager.getInstanceFor(dummyCon);
|
||||
|
||||
boolean pingSuccess = pinger.ping("test@myserver.com");
|
||||
|
||||
|
@ -96,7 +123,7 @@ public class PingTest {
|
|||
IQ serviceUnavailable = PacketParserUtils.parseIQ(TestUtils.getIQParser(reply), threadedCon);
|
||||
threadedCon.addIQReply(serviceUnavailable);
|
||||
|
||||
PingManager pinger = new PingManager(threadedCon);
|
||||
PingManager pinger = PingManager.getInstanceFor(threadedCon);
|
||||
|
||||
boolean pingSuccess = pinger.ping("test@myserver.com");
|
||||
|
||||
|
@ -106,7 +133,7 @@ public class PingTest {
|
|||
@Test
|
||||
public void checkPingToServerSuccess() throws Exception {
|
||||
ThreadedDummyConnection con = new ThreadedDummyConnection();
|
||||
PingManager pinger = new PingManager(con);
|
||||
PingManager pinger = PingManager.getInstanceFor(con);
|
||||
|
||||
boolean pingSuccess = pinger.pingMyServer();
|
||||
|
||||
|
@ -132,7 +159,7 @@ public class PingTest {
|
|||
IQ serviceUnavailable = PacketParserUtils.parseIQ(TestUtils.getIQParser(reply), con);
|
||||
con.addIQReply(serviceUnavailable);
|
||||
|
||||
PingManager pinger = new PingManager(con);
|
||||
PingManager pinger = PingManager.getInstanceFor(con);
|
||||
|
||||
boolean pingSuccess = pinger.pingMyServer();
|
||||
|
||||
|
@ -142,7 +169,7 @@ public class PingTest {
|
|||
@Test
|
||||
public void checkPingToServerTimeout() throws Exception {
|
||||
DummyConnection con = new DummyConnection();
|
||||
PingManager pinger = new PingManager(con);
|
||||
PingManager pinger = PingManager.getInstanceFor(con);
|
||||
|
||||
boolean pingSuccess = pinger.pingMyServer();
|
||||
|
||||
|
@ -165,7 +192,7 @@ public class PingTest {
|
|||
IQ discoReply = PacketParserUtils.parseIQ(TestUtils.getIQParser(reply), con);
|
||||
con.addIQReply(discoReply);
|
||||
|
||||
PingManager pinger = new PingManager(con);
|
||||
PingManager pinger = PingManager.getInstanceFor(con);
|
||||
boolean pingSupported = pinger.isPingSupported("test@myserver.com");
|
||||
|
||||
assertTrue(pingSupported);
|
||||
|
@ -187,7 +214,7 @@ public class PingTest {
|
|||
IQ discoReply = PacketParserUtils.parseIQ(TestUtils.getIQParser(reply), con);
|
||||
con.addIQReply(discoReply);
|
||||
|
||||
PingManager pinger = new PingManager(con);
|
||||
PingManager pinger = PingManager.getInstanceFor(con);
|
||||
boolean pingSupported = pinger.isPingSupported("test@myserver.com");
|
||||
|
||||
assertFalse(pingSupported);
|
||||
|
|
Loading…
Reference in a new issue