/**
* Connects this member to the cluster using the given <code>loadFactor</code>. The <code>
* loadFactor</code> defines the (approximate) relative load that this member will receive.
*
* <p>A good default value is 100, which will give this member 100 nodes on the distributed hash
* ring. Giving all members (proportionally) lower values will result in a less evenly distributed
* hash.
*
* @param loadFactor The load factor for this node.
* @throws ConnectionFailedException when an error occurs while connecting
*/
public synchronized void connect(int loadFactor) throws ConnectionFailedException {
this.currentLoadFactor = loadFactor;
Assert.isTrue(loadFactor >= 0, "Load Factor must be a positive integer value.");
Assert.isTrue(
channel.getReceiver() == null || channel.getReceiver() == messageReceiver,
"The given channel already has a receiver configured. "
+ "Has the channel been reused with other Connectors?");
try {
channel.setReceiver(messageReceiver);
if (channel.isConnected() && !clusterName.equals(channel.getClusterName())) {
throw new AxonConfigurationException(
"The Channel that has been configured with this JGroupsConnector "
+ "is already connected to another cluster.");
} else if (channel.isConnected()) {
// we need to fetch state now that we have attached our MessageReceiver
channel.getState(null, 10000);
} else {
// we need to connect. This will automatically fetch state as well.
channel.connect(clusterName, null, 10000);
}
updateMembership();
} catch (Exception e) {
joinedCondition.markJoined(false);
channel.disconnect();
throw new ConnectionFailedException("Failed to connect to JGroupsConnectorFactoryBean", e);
}
}
public void testSASLDigestMD5() throws Exception {
a = createChannel("A", "DIGEST-MD5", "jack");
b = createChannel("B", "DIGEST-MD5", "jack");
a.connect("SaslTest");
b.connect("SaslTest");
assertTrue(b.isConnected());
}
private void updateMembership() throws MembershipUpdateFailedException {
try {
if (channel.isConnected()) {
channel.send(
new Message(
null,
new JoinMessage(currentLoadFactor, new HashSet<String>(supportedCommandTypes)))
.setFlag(Message.Flag.RSVP));
}
} catch (Exception e) {
throw new MembershipUpdateFailedException(
"Failed to dispatch Join message to Distributed Command Bus Members", e);
}
}
public void testSASLDigestMD5Merge() throws Exception {
a = createChannel("A", "DIGEST-MD5", "jack");
b = createChannel("B", "DIGEST-MD5", "jack");
a.connect("SaslTest");
b.connect("SaslTest");
assertTrue(b.isConnected());
print(a, b);
createPartitions(a, b);
print(a, b);
assertTrue(checkViewSize(1, a, b));
dropDiscard(a, b);
mergePartitions(a, b);
for (int i = 0; i < 10 && !checkViewSize(2, a, b); i++) {
Util.sleep(500);
}
assertTrue(viewContains(a.getView(), a, b));
assertTrue(viewContains(b.getView(), a, b));
}
protected void close() {
if (iChannel != null && iChannel.isConnected()) iChannel.disconnect();
if (iChannel != null && iChannel.isOpen()) iChannel.close();
OnlineSectioningLogger.stopLogger();
HibernateUtil.closeHibernate();
}
protected void startServer() {
final Session session =
Session.getSessionUsingInitiativeYearTerm(
ApplicationProperties.getProperty("initiative", "woebegon"),
ApplicationProperties.getProperty("year", "2010"),
ApplicationProperties.getProperty("term", "Fal"));
boolean remote = "true".equalsIgnoreCase(ApplicationProperties.getProperty("remote", "true"));
if (session == null) {
sLog.error(
"Academic session not found, use properties initiative, year, and term to set academic session.");
System.exit(0);
} else {
sLog.info("Session: " + session);
}
iSessionId = session.getUniqueId();
OnlineSectioningLogger.getInstance().setEnabled(false);
if (remote) {
try {
iChannel =
new JChannel(
JGroupsUtils.getConfigurator(
ApplicationProperty.SolverClusterConfiguration.value()));
iChannel.setUpHandler(new MuxUpHandler());
iSolverServer = new DummySolverServer(iChannel);
iChannel.connect("UniTime:rpc");
iChannel.getState(null, 0);
if (getServer() == null) throw new Exception(session.getLabel() + " is not available");
} catch (Exception e) {
sLog.error("Failed to access the solver server: " + e.getMessage(), e);
if (iChannel != null && iChannel.isConnected()) iChannel.disconnect();
if (iChannel != null && iChannel.isOpen()) iChannel.close();
System.exit(0);
}
} else {
iServer =
new InMemoryServer(
new OnlineSectioningServerContext() {
@Override
public boolean isWaitTillStarted() {
return true;
}
@Override
public EmbeddedCacheManager getCacheManager() {
return null;
}
@Override
public Long getAcademicSessionId() {
return session.getUniqueId();
}
@Override
public LockService getLockService() {
return null;
}
});
}
}
