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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.messagebus;
import com.yahoo.jrt.ListenFailedException;
import com.yahoo.jrt.slobrok.server.Slobrok;
import com.yahoo.messagebus.network.Identity;
import com.yahoo.messagebus.network.rpc.RPCNetworkParams;
import com.yahoo.messagebus.network.rpc.test.TestServer;
import com.yahoo.messagebus.routing.Route;
import com.yahoo.messagebus.test.Receptor;
import com.yahoo.messagebus.test.SimpleMessage;
import com.yahoo.messagebus.test.SimpleProtocol;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertFalse;
/**
* @author Simon Thoresen Hult
*/
public class ChokeTestCase {
Slobrok slobrok;
TestServer srcServer, dstServer;
SourceSession srcSession;
DestinationSession dstSession;
@Before
public void setUp() throws ListenFailedException {
slobrok = new Slobrok();
dstServer = new TestServer(new MessageBusParams().addProtocol(new SimpleProtocol()),
new RPCNetworkParams().setIdentity(new Identity("dst")).setSlobrokConfigId(TestServer.getSlobrokConfig(slobrok)));
dstSession = dstServer.mb.createDestinationSession(new DestinationSessionParams().setName("session").setMessageHandler(new Receptor()));
srcServer = new TestServer(new MessageBusParams().setRetryPolicy(null).addProtocol(new SimpleProtocol()),
new RPCNetworkParams().setSlobrokConfigId(TestServer.getSlobrokConfig(slobrok)));
srcSession = srcServer.mb.createSourceSession(
new SourceSessionParams().setTimeout(600.0).setThrottlePolicy(null).setReplyHandler(new Receptor()));
assertTrue(srcServer.waitSlobrok("dst/session", 1));
}
@After
public void tearDown() {
slobrok.stop();
dstSession.destroy();
dstServer.destroy();
srcSession.destroy();
srcServer.destroy();
}
@Test
@SuppressWarnings("deprecation")
public void testMaxCount() {
int max = 10;
dstServer.mb.setMaxPendingCount(max);
List<Message> lst = new ArrayList<>();
for (int i = 0; i < max * 2; ++i) {
if (i < max) {
assertEquals(i, dstServer.mb.getPendingCount());
} else {
assertEquals(max, dstServer.mb.getPendingCount());
}
assertTrue(srcSession.send(createMessage("msg"), Route.parse("dst/session")).isAccepted());
if (i < max) {
Message msg = ((Receptor)dstSession.getMessageHandler()).getMessage(60);
assertNotNull(msg);
lst.add(msg);
} else {
Reply reply = ((Receptor)srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertEquals(1, reply.getNumErrors());
assertEquals(ErrorCode.SESSION_BUSY, reply.getError(0).getCode());
}
}
for (int i = 0; i < 5; ++i) {
Message msg = lst.remove(0);
dstSession.acknowledge(msg);
Reply reply = ((Receptor)srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertFalse(reply.hasErrors());
assertNotNull(msg = reply.getMessage());
assertTrue(srcSession.send(msg, Route.parse("dst/session")).isAccepted());
assertNotNull(msg = ((Receptor)dstSession.getMessageHandler()).getMessage(60));
lst.add(msg);
}
while (!lst.isEmpty()) {
assertEquals(lst.size(), dstServer.mb.getPendingCount());
Message msg = lst.remove(0);
dstSession.acknowledge(msg);
Reply reply = ((Receptor)srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertFalse(reply.hasErrors());
}
assertEquals(0, dstServer.mb.getPendingCount());
}
@Test
@SuppressWarnings("deprecation")
public void testMaxSize() {
int size = createMessage("msg").getApproxSize();
int max = size * 10;
dstServer.mb.setMaxPendingSize(max);
List<Message> lst = new ArrayList<>();
for (int i = 0; i < max * 2; i += size) {
if (i < max) {
assertEquals(i, dstServer.mb.getPendingSize());
} else {
assertEquals(max, dstServer.mb.getPendingSize());
}
assertTrue(srcSession.send(createMessage("msg"), Route.parse("dst/session")).isAccepted());
if (i < max) {
Message msg = ((Receptor)dstSession.getMessageHandler()).getMessage(60);
assertNotNull(msg);
lst.add(msg);
} else {
Reply reply = ((Receptor)srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertEquals(1, reply.getNumErrors());
assertEquals(ErrorCode.SESSION_BUSY, reply.getError(0).getCode());
}
}
for (int i = 0; i < 5; ++i) {
Message msg = lst.remove(0);
dstSession.acknowledge(msg);
Reply reply = ((Receptor)srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertFalse(reply.hasErrors());
assertNotNull(msg = reply.getMessage());
assertTrue(srcSession.send(msg, Route.parse("dst/session")).isAccepted());
assertNotNull(msg = ((Receptor)dstSession.getMessageHandler()).getMessage(60));
lst.add(msg);
}
while (!lst.isEmpty()) {
assertEquals(size * lst.size(), dstServer.mb.getPendingSize());
Message msg = lst.remove(0);
dstSession.acknowledge(msg);
Reply reply = ((Receptor)srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertFalse(reply.hasErrors());
}
assertEquals(0, dstServer.mb.getPendingSize());
}
private static Message createMessage(String msg) {
Message ret = new SimpleMessage(msg);
ret.getTrace().setLevel(9);
return ret;
}
}
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