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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.Spec;
import com.yahoo.jrt.slobrok.server.Slobrok;
import com.yahoo.messagebus.network.rpc.RPCNetwork;
import com.yahoo.messagebus.network.rpc.RPCNetworkParams;
import com.yahoo.messagebus.network.rpc.test.TestServer;
import com.yahoo.messagebus.routing.RetryTransientErrorsPolicy;
import com.yahoo.messagebus.routing.Route;
import com.yahoo.messagebus.routing.RoutingPolicy;
import com.yahoo.messagebus.routing.test.CustomPolicyFactory;
import com.yahoo.messagebus.test.Receptor;
import com.yahoo.messagebus.test.SimpleMessage;
import com.yahoo.messagebus.test.SimpleProtocol;
import org.junit.jupiter.api.Test;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
public class MessageBusTestCase {
@Test
void requireThatBucketSequencingWithResenderEnabledCausesError() throws ListenFailedException {
Slobrok slobrok = new Slobrok();
TestServer server = new TestServer(new MessageBusParams()
.addProtocol(new SimpleProtocol())
.setRetryPolicy(new RetryTransientErrorsPolicy()),
new RPCNetworkParams()
.setSlobrokConfigId(slobrok.configId()));
Receptor receptor = new Receptor();
SourceSession session = server.mb.createSourceSession(
new SourceSessionParams().setTimeout(600.0).setReplyHandler(receptor));
assertTrue(session.send(new SimpleMessage("foo") {
@Override
public boolean hasBucketSequence() {
return true;
}
}.setRoute(Route.parse("bar"))).isAccepted());
Reply reply = receptor.getReply(60);
assertNotNull(reply);
assertEquals(1, reply.getNumErrors());
assertEquals(ErrorCode.SEQUENCE_ERROR, reply.getError(0).getCode());
session.destroy();
server.destroy();
slobrok.stop();
}
@Test
void testConnectionSpec() throws ListenFailedException, UnknownHostException {
// Setup servers and sessions.
Slobrok slobrok = new Slobrok();
List<TestServer> servers = new ArrayList<>();
TestServer srcServer = new TestServer("feeder", null, slobrok, null);
servers.add(srcServer);
SourceSession src = servers.get(0).mb.createSourceSession(new Receptor());
List<IntermediateSession> sessions = new ArrayList<>();
for (int i = 0; i < 10; ++i) {
TestServer server = new TestServer("intermediate/" + i, null, slobrok, null);
servers.add(server);
sessions.add(server.mb.createIntermediateSession("session", true, new Receptor(), new Receptor()));
}
TestServer dstServer = new TestServer("destination", null, slobrok, null);
DestinationSession dst = dstServer.mb.createDestinationSession("session", true, new Receptor());
assertTrue(srcServer.waitSlobrok("intermediate/*/session", sessions.size()));
assertTrue(srcServer.waitSlobrok("destination/session", 1));
StringBuilder route = new StringBuilder();
for (int i = 0; i < sessions.size(); i++) {
route.append("intermediate/").append(i).append("/session ");
route.append(sessions.get(i).getConnectionSpec()).append(" ");
}
route.append(dst.getConnectionSpec());
Message msg = new SimpleMessage("empty");
assertTrue(src.send(msg, Route.parse(route.toString())).isAccepted());
for (IntermediateSession itr : sessions) {
// Received using session name.
assertNotNull(msg = ((Receptor) itr.getMessageHandler()).getMessage(60));
itr.forward(msg);
// Received using connection spec.
assertNotNull(msg = ((Receptor) itr.getMessageHandler()).getMessage(60));
itr.forward(msg);
}
assertNotNull(msg = ((Receptor) dst.getMessageHandler()).getMessage(60));
dst.acknowledge(msg);
for (int i = sessions.size(); --i >= 0; ) {
IntermediateSession itr = sessions.get(i);
// Received for connection spec.
Reply reply = ((Receptor) itr.getReplyHandler()).getReply(60);
assertNotNull(reply);
itr.forward(reply);
// Received for session name.
assertNotNull(reply = ((Receptor) itr.getReplyHandler()).getReply(60));
itr.forward(reply);
}
assertNotNull(((Receptor) src.getReplyHandler()).getReply(60));
// Cleanup.
for (IntermediateSession session : sessions) {
session.destroy();
}
for (TestServer server : servers) {
server.destroy();
}
slobrok.stop();
}
@Test
void testRoutingPolicyCache() throws ListenFailedException, UnknownHostException {
Slobrok slobrok = new Slobrok();
String config = "slobrok[1]\nslobrok[0].connectionspec \"" + new Spec("localhost", slobrok.port()).toString() + "\"\n";
SimpleProtocol protocol = new SimpleProtocol();
protocol.addPolicyFactory("Custom", new CustomPolicyFactory());
MessageBus bus = new MessageBus(new RPCNetwork(new RPCNetworkParams().setSlobrokConfigId("raw:" + config)),
new MessageBusParams().addProtocol(protocol));
RoutingPolicy all = bus.getRoutingPolicy(SimpleProtocol.NAME, "Custom", null);
assertNotNull(all);
RoutingPolicy ref = bus.getRoutingPolicy(SimpleProtocol.NAME, "Custom", null);
assertNotNull(ref);
assertSame(all, ref);
RoutingPolicy allArg = bus.getRoutingPolicy(SimpleProtocol.NAME, "Custom", "Arg");
assertNotNull(allArg);
assertNotSame(all, allArg);
RoutingPolicy refArg = bus.getRoutingPolicy(SimpleProtocol.NAME, "Custom", "Arg");
assertNotNull(refArg);
assertSame(allArg, refArg);
}
}
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