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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
import com.yahoo.messagebus.*;
import com.yahoo.messagebus.test.*;
import com.yahoo.config.*;
import com.yahoo.messagebus.routing.*;
import com.yahoo.messagebus.network.*;
import com.yahoo.messagebus.network.rpc.*;
import java.util.Arrays;
import java.util.logging.*;
public class JavaClient implements ReplyHandler {
private static Logger log = Logger.getLogger(JavaClient.class.getName());
private static class Counts {
public int okCnt = 0;
public int failCnt = 0;
Counts() {}
Counts(int okCnt, int failCnt) {
this.okCnt = okCnt;
this.failCnt = failCnt;
}
}
private SourceSession session;
private Counts counts = new Counts();
private static long mySeq = 100000;
public JavaClient(RPCMessageBus mb) {
session = mb.getMessageBus().createSourceSession(this, new SourceSessionParams().setTimeout(30));
}
public synchronized Counts sample() {
return new Counts(counts.okCnt, counts.failCnt);
}
public void send() {
send(++mySeq);
}
public void send(long seq) {
session.send(new MyMessage(seq), "test");
}
public void handleReply(Reply reply) {
if ((reply.getProtocol() == SimpleProtocol.NAME)
&& (reply.getType() == SimpleProtocol.REPLY)
&& (((SimpleReply)reply).getValue().equals("OK")))
{
synchronized (this) {
counts.okCnt++;
}
} else {
synchronized (this) {
counts.failCnt++;
}
}
try {
send();
} catch (IllegalStateException ignore) {} // handle paranoia for shutdown source sessions
}
public void shutdown() {
session.destroy();
}
public static void main(String[] args) {
try {
RPCMessageBus mb = new RPCMessageBus(
new MessageBusParams()
.setRetryPolicy(new RetryTransientErrorsPolicy().setBaseDelay(0.1))
.addProtocol(new SimpleProtocol()),
new RPCNetworkParams()
.setIdentity(new Identity("server/java"))
.setSlobrokConfigId("file:slobrok.cfg"),
"file:routing.cfg");
JavaClient client = new JavaClient(mb);
// let the system 'warm up'
Thread.sleep(5000);
// inject messages into the feedback loop
for (int i = 0; i < 1024; ++i) {
client.send(i);
}
// let the system 'warm up'
Thread.sleep(5000);
long start;
long stop;
Counts before;
Counts after;
start = System.currentTimeMillis();
before = client.sample();
Thread.sleep(10000); // Benchmark time
stop = System.currentTimeMillis();
after = client.sample();
stop -= start;
double time = (double)stop;
double msgCnt = (double)(after.okCnt - before.okCnt);
double throughput = (msgCnt / time) * 1000.0;
System.out.printf("JAVA-CLIENT: %g msg/s\n", throughput);
client.shutdown();
mb.destroy();
if (after.failCnt > before.failCnt) {
System.err.printf("JAVA-CLIENT: FAILED (%d -> %d)\n",
before.failCnt, after.failCnt);
System.exit(1);
}
} catch (Exception e) {
log.log(Level.SEVERE, "JAVA-CLIENT: Failed", e);
System.exit(1);
}
}
private static class MyMessage extends SimpleMessage {
final long seqId;
MyMessage(long seqId) {
super("message");
this.seqId = seqId;
}
@Override
public boolean hasSequenceId() {
return true;
}
@Override
public long getSequenceId() {
return seqId;
}
}
}
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