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Code Issues Releases Wiki Activity

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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4
build/resources/META-INF/smack-config.xml
View file

@ -24,7 +24,7 @@
<startupClasses>
<className>org.jivesoftware.smackx.ServiceDiscoveryManager</className>
<className>org.jivesoftware.smack.PrivacyListManager</className>
<className>org.jivesoftware.smack.ping.ServerPingManager</className>
<className>org.jivesoftware.smack.keepalive.KeepAliveManager</className>
<className>org.jivesoftware.smackx.XHTMLManager</className>
<className>org.jivesoftware.smackx.muc.MultiUserChat</className>
<className>org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamManager</className>
@ -34,7 +34,7 @@
<className>org.jivesoftware.smack.ReconnectionManager</className>
<className>org.jivesoftware.smackx.commands.AdHocCommandManager</className>
<className>org.jivesoftware.smack.util.dns.JavaxResolver</className>
<className>org.jivesoftware.smackx.ping.PingManager</className>
</startupClasses>
</smack>

158
source/org/jivesoftware/smack/ping/ServerPingManager.java → source/org/jivesoftware/smack/keepalive/KeepAliveManager.java
View file

@ -14,13 +14,14 @@
* limitations under the License.
*/
package org.jivesoftware.smack.ping;
package org.jivesoftware.smack.keepalive;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
@ -33,17 +34,11 @@ import org.jivesoftware.smack.ConnectionListener;
import org.jivesoftware.smack.PacketCollector;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.SmackConfiguration;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.AndFilter;
import org.jivesoftware.smack.filter.IQTypeFilter;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.IQ.Type;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.ping.PingFailedListener;
import org.jivesoftware.smack.ping.packet.Ping;
import org.jivesoftware.smackx.ServiceDiscoveryManager;
/**
* Using an implementation of <a href="http://www.xmpp.org/extensions/xep-0199.html">XMPP Ping (XEP-0199)</a>. This
@ -56,25 +51,15 @@ import org.jivesoftware.smackx.ServiceDiscoveryManager;
*
* @author Florian Schmaus
*/
public class ServerPingManager {
private static Map<Connection, ServerPingManager> instances = Collections
.synchronizedMap(new WeakHashMap<Connection, ServerPingManager>());
private static long defaultPingInterval = SmackConfiguration.getKeepAliveInterval();
public class KeepAliveManager {
private static Map<Connection, KeepAliveManager> instances = new HashMap<Connection, KeepAliveManager>();
private static volatile ScheduledExecutorService periodicPingExecutorService;
private static ScheduledExecutorService periodicPingExecutorService = new ScheduledThreadPoolExecutor(1, new ThreadFactory() {
@Override
public Thread newThread(Runnable runnable) {
Thread pingThread = new Thread(runnable, "Smack Server Ping");
pingThread.setDaemon(true);
return pingThread;
}
});
static {
if (defaultPingInterval > 0) {
if (SmackConfiguration.getKeepAliveInterval() > 0) {
Connection.addConnectionCreationListener(new ConnectionCreationListener() {
public void connectionCreated(Connection connection) {
new ServerPingManager(connection);
new KeepAliveManager(connection);
}
});
}
@ -87,56 +72,94 @@ public class ServerPingManager {
private volatile long lastSuccessfulContact = -1;
/**
* Retrieves a {@link ServerPingManager} for the specified {@link Connection}, creating one if it doesn't already
* Retrieves a {@link KeepAliveManager} 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 ServerPingManager getInstanceFor(Connection connection) {
ServerPingManager pingManager = instances.get(connection);
public synchronized static KeepAliveManager getInstanceFor(Connection connection) {
KeepAliveManager pingManager = instances.get(connection);
if (pingManager == null) {
pingManager = new ServerPingManager(connection);
pingManager = new KeepAliveManager(connection);
instances.put(connection, pingManager);
}
return pingManager;
}
private ServerPingManager(Connection connection) {
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
sdm.addFeature(Ping.NAMESPACE);
/*
* Start the executor service if it hasn't been started yet.
*/
private synchronized static void enableExecutorService() {
if (periodicPingExecutorService == null) {
periodicPingExecutorService = new ScheduledThreadPoolExecutor(1, new ThreadFactory() {
@Override
public Thread newThread(Runnable runnable) {
Thread pingThread = new Thread(runnable, "Smack Keepalive");
pingThread.setDaemon(true);
return pingThread;
}
});
}
}
/*
* Stop the executor service if all monitored connections are disconnected.
*/
private synchronized static void handleDisconnect(Connection con) {
if (periodicPingExecutorService != null) {
instances.remove(con);
if (instances.isEmpty()) {
periodicPingExecutorService.shutdownNow();
periodicPingExecutorService = null;
}
}
}
private KeepAliveManager(Connection connection) {
this.connection = connection;
init();
handleConnect();
}
/*
* Call after every connection to add the packet listener.
*/
private void handleConnect() {
// Listen for all incoming packets and reset the scheduled ping whenever
// one arrives.
connection.addPacketListener(new PacketListener() {
@Override
public void processPacket(Packet packet) {
// reschedule the ping based on this last server contact
lastSuccessfulContact = System.currentTimeMillis();
schedulePingServerTask();
}
}, null);
}
private void init() {
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);
connection.addConnectionListener(new ConnectionListener() {
@Override
public void connectionClosed() {
stopPingServerTask();
handleDisconnect(connection);
}
@Override
public void connectionClosedOnError(Exception arg0) {
stopPingServerTask();
handleDisconnect(connection);
}
@Override
public void reconnectionSuccessful() {
handleConnect();
schedulePingServerTask();
}
@ -149,17 +172,6 @@ public class ServerPingManager {
}
});
// Listen for all incoming packets and reset the scheduled ping whenever
// one arrives.
connection.addPacketListener(new PacketListener() {
@Override
public void processPacket(Packet packet) {
// reschedule the ping based on this last server contact
lastSuccessfulContact = System.currentTimeMillis();
schedulePingServerTask();
}
}, null);
instances.put(connection, this);
schedulePingServerTask();
}
@ -171,15 +183,20 @@ public class ServerPingManager {
* The new ping time interval in milliseconds.
*/
public void setPingInterval(long newPingInterval) {
if (pingInterval != newPingInterval) {
pingInterval = newPingInterval;
if (pingInterval == newPingInterval)
return;
// Enable the executor service
if (newPingInterval > 0)
enableExecutorService();
pingInterval = newPingInterval;
if (pingInterval < 0) {
stopPinging();
}
else {
schedulePingServerTask();
}
if (pingInterval < 0) {
stopPinging();
}
else {
schedulePingServerTask();
}
}
@ -227,12 +244,20 @@ public class ServerPingManager {
}
/**
* Returns the time of the last successful contact with the server. (i.e. the last time any message was received).
* Returns the elapsed time (in milliseconds) since the last successful contact with the server
* (i.e. the last time any message was received).
* <p>
* <b>Note</b>: Result is -1 if no message has been received since manager was created and
* 0 if the elapsed time is negative due to a clock reset.
*
* @return Time of last message or -1 if none has been received since manager was created.
* @return Elapsed time since last message was received.
*/
public long getLastSuccessfulContact() {
return lastSuccessfulContact;
public long getTimeSinceLastContact() {
if (lastSuccessfulContact == -1)
return lastSuccessfulContact;
long delta = System.currentTimeMillis() - lastSuccessfulContact;
return (delta < 0) ? 0 : delta;
}
/**
@ -242,6 +267,7 @@ public class ServerPingManager {
* 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.
*/
private synchronized void schedulePingServerTask() {
enableExecutorService();
stopPingServerTask();
if (pingInterval > 0) {

67
source/org/jivesoftware/smackx/ping/PingManager.java
View file

@ -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);
}
/**

12
test-unit/org/jivesoftware/smack/DummyConnection.java
View file

@ -49,6 +49,7 @@ public class DummyConnection extends Connection {
private boolean authenticated = false;
private boolean anonymous = false;
private boolean reconnect = false;
private String user;
private String connectionID;
@ -71,6 +72,12 @@ public class DummyConnection extends Connection {
@Override
public void connect() throws XMPPException {
connectionID = "dummy-" + new Random(new Date().getTime()).nextInt();
if (reconnect) {
for (ConnectionListener listener : getConnectionListeners()) {
listener.reconnectionSuccessful();
}
}
}
@Override
@ -80,6 +87,11 @@ public class DummyConnection extends Connection {
roster = null;
authenticated = false;
anonymous = false;
for (ConnectionListener listener : getConnectionListeners()) {
listener.connectionClosed();
}
reconnect = true;
}
@Override

36
test-unit/org/jivesoftware/smack/ping/KeepaliveTest.java → test-unit/org/jivesoftware/smack/keepalive/KeepaliveTest.java
View file

@ -1,4 +1,4 @@
package org.jivesoftware.smack.ping;
package org.jivesoftware.smack.keepalive;
import static org.custommonkey.xmlunit.XMLAssert.assertXMLEqual;
import static org.junit.Assert.assertEquals;
@ -17,8 +17,10 @@ import org.jivesoftware.smack.TestUtils;
import org.jivesoftware.smack.ThreadedDummyConnection;
import org.jivesoftware.smack.filter.IQTypeFilter;
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.ping.PingFailedListener;
import org.jivesoftware.smack.ping.packet.Ping;
import org.jivesoftware.smack.util.PacketParserUtils;
import org.junit.After;
@ -40,6 +42,7 @@ public class KeepaliveTest {
@Before
public void resetProperties()
{
SmackConfiguration.setKeepAliveInterval(-1);
originalTimeout = SmackConfiguration.getPacketReplyTimeout();
SmackConfiguration.setPacketReplyTimeout(1000);
}
@ -56,7 +59,7 @@ public class KeepaliveTest {
public void validatePingStanzaXML() throws Exception {
// @formatter:off
String control = "<iq to='juliet@capulet.lit/balcony' id='s2c1' type='get'>"
+ "<ping xmlns='urn:xmpp:ping'/>" + "</iq>";
+ "<ping xmlns='urn:xmpp:ping'/></iq>";
// @formatter:on
Ping ping = new Ping(TO);
@ -65,29 +68,6 @@ public class KeepaliveTest {
assertXMLEqual(control, ping.toXML());
}
@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();
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 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;

45
test-unit/org/jivesoftware/smackx/ping/PingTest.java
View file

@ -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);