private void send(
final Address dest, final int num_msgs, final int num_threads, final double oob_prob)
throws Exception {
if (num_threads <= 0) throw new IllegalArgumentException("number of threads <= 0");
if (num_msgs % num_threads != 0)
throw new IllegalArgumentException(
"number of messages ( "
+ num_msgs
+ ") needs to be divisible by "
+ "the number o threads ("
+ num_threads
+ ")");
if (num_threads > 1) {
final int msgs_per_thread = num_msgs / num_threads;
Thread[] threads = new Thread[num_threads];
final AtomicInteger counter = new AtomicInteger(0);
for (int i = 0; i < threads.length; i++) {
threads[i] =
new Thread() {
public void run() {
for (int j = 0; j < msgs_per_thread; j++) {
Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
boolean oob = Util.tossWeightedCoin(oob_prob);
int num = counter.incrementAndGet();
Message msg = new Message(dest, null, num);
if (oob) msg.setFlag(Message.OOB);
try {
sender.send(msg);
} catch (Exception e) {
e.printStackTrace();
}
}
}
};
threads[i].start();
}
for (int i = 0; i < threads.length; i++) {
threads[i].join(20000);
}
return;
}
for (int i = 0; i < num_msgs; i++) {
Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
boolean oob = Util.tossWeightedCoin(oob_prob);
Message msg = new Message(dest, null, i);
if (oob) msg.setFlag(Message.OOB);
sender.send(msg);
}
}
@Override
public void notify(ChangeSet changeSet) {
if (changeSet == null) {
return; // do nothing
}
if (!isOpen.get()) {
// The channel is not open ...
return;
}
if (!multipleAddressesInCluster.get()) {
// We are in clustered mode, but there is only one participant in the cluster (us).
// So short-circuit the cluster and just notify the local observers ...
if (hasObservers()) {
delegate.notify(changeSet);
logReceivedOperation(changeSet);
}
return;
}
// There are multiple participants in the cluster, so send all changes out to JGroups,
// letting JGroups do the ordering of messages...
try {
logSendOperation(changeSet);
byte[] data = serialize(changeSet);
Message message = new Message(null, null, data);
channel.send(message);
} catch (IllegalStateException e) {
LOGGER.warn(
BusI18n.unableToNotifyChanges,
clusteringConfiguration.getClusterName(),
changeSet.size(),
changeSet.getWorkspaceName(),
changeSet.getUserId(),
changeSet.getProcessKey(),
changeSet.getTimestamp());
} catch (Exception e) {
// Something went wrong here (this should not happen) ...
String msg =
BusI18n.errorSerializingChanges.text(
clusteringConfiguration.getClusterName(),
changeSet.size(),
changeSet.getWorkspaceName(),
changeSet.getUserId(),
changeSet.getProcessKey(),
changeSet.getTimestamp(),
changeSet);
throw new SystemFailureException(msg, e);
}
}
private static void send(
Channel sender_channel, Address dest, boolean oob, boolean mixed, int num_msgs)
throws Exception {
long seqno = 1;
for (int i = 0; i < num_msgs; i++) {
Message msg = new Message(dest, null, seqno++);
if (mixed) {
if (i % 2 == 0) msg.setFlag(Message.OOB);
} else if (oob) {
msg.setFlag(Message.OOB);
}
sender_channel.send(msg);
}
}
public void receive(Message msg) {
Message reply = new Message(msg.getSrc());
try {
System.out.println(
"-- MySimpleReplier["
+ channel.getAddress()
+ "]: received message from "
+ msg.getSrc());
if (handle_requests) {
System.out.println(", sending reply");
channel.send(reply);
} else System.out.println("\n");
} catch (Exception e) {
e.printStackTrace();
}
}