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SMACK-412 Abstracted the keepalive implementation and set the thread to start and stop on demand.

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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:
rcollier 2013-04-16 01:39:17 +00:00
parent b4432d7627
commit 3a4b05ac00
6 changed files with 213 additions and 109 deletions
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67
source/org/jivesoftware/smackx/ping/PingManager.java
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@ -16,11 +16,25 @@
package org.jivesoftware.smackx.ping;
import java.util.Collections;
import java.util.Map;
import java.util.WeakHashMap;
import java.util.concurrent.ScheduledExecutorService;
import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.SmackConfiguration;
import org.jivesoftware.smack.SmackError;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.ping.ServerPingManager;
import org.jivesoftware.smack.filter.AndFilter;
import org.jivesoftware.smack.filter.IQTypeFilter;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.keepalive.KeepAliveManager;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.IQ.Type;
import org.jivesoftware.smack.ping.packet.Ping;
import org.jivesoftware.smack.util.SyncPacketSend;
import org.jivesoftware.smackx.ServiceDiscoveryManager;
@ -31,7 +45,7 @@ import org.jivesoftware.smackx.packet.DiscoverInfo;
* allows one entity to 'ping' any other entity by simply sending a ping to
* the appropriate JID.
* <p>
* NOTE: The {@link ServerPingManager} already provides a keepalive functionality
* NOTE: The {@link KeepAliveManager} already provides a keepalive functionality
* for regularly pinging the server to keep the underlying transport connection
* alive. This class is specifically intended to do manual pings of other
* entities.
@ -41,12 +55,57 @@ import org.jivesoftware.smackx.packet.DiscoverInfo;
* Ping</a>
*/
public class PingManager {
private static Map<Connection, PingManager> instances = Collections
.synchronizedMap(new WeakHashMap<Connection, PingManager>());
static {
Connection.addConnectionCreationListener(new ConnectionCreationListener() {
public void connectionCreated(Connection connection) {
new PingManager(connection);
}
});
}
private Connection connection;
public PingManager(Connection connection) {
/**
* Retrieves a {@link PingManager} for the specified {@link Connection}, creating one if it doesn't already
* exist.
*
* @param connection
* The connection the manager is attached to.
* @return The new or existing manager.
*/
public synchronized static PingManager getInstanceFor(Connection connection) {
PingManager pingManager = instances.get(connection);
if (pingManager == null) {
pingManager = new PingManager(connection);
}
return pingManager;
}
private PingManager(Connection con) {
this.connection = con;
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
// The ServiceDiscoveryManager was not pre-initialized
if (sdm == null)
sdm = new ServiceDiscoveryManager(connection);
sdm.addFeature(Ping.NAMESPACE);
this.connection = connection;
PacketFilter pingPacketFilter = new AndFilter(new PacketTypeFilter(Ping.class), new IQTypeFilter(Type.GET));
connection.addPacketListener(new PacketListener() {
/**
* Sends a Pong for every Ping
*/
public void processPacket(Packet packet) {
IQ pong = IQ.createResultIQ((Ping) packet);
connection.sendPacket(pong);
}
}, pingPacketFilter);
}
/**