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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.rpc.test.TestServer;
import com.yahoo.messagebus.routing.RoutingTableSpec;
import com.yahoo.messagebus.test.Receptor;
import com.yahoo.messagebus.test.SimpleMessage;
import com.yahoo.messagebus.test.SimpleProtocol;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.net.UnknownHostException;
import java.util.Arrays;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* @author Simon Thoresen Hult
*/
public class TraceTripTestCase {
Slobrok slobrok;
TestServer src;
TestServer pxy;
TestServer dst;
@BeforeEach
public void setUp() throws ListenFailedException {
RoutingTableSpec table = new RoutingTableSpec(SimpleProtocol.NAME)
.addHop("pxy", "test/pxy/session", Arrays.asList("test/pxy/session"))
.addHop("dst", "test/dst/session", Arrays.asList("test/dst/session"))
.addRoute("test", Arrays.asList("pxy", "dst"));
slobrok = new Slobrok();
src = new TestServer("test/src", table, slobrok, null);
pxy = new TestServer("test/pxy", table, slobrok, null);
dst = new TestServer("test/dst", table, slobrok, null);
}
@AfterEach
public void tearDown() {
dst.destroy();
pxy.destroy();
src.destroy();
slobrok.stop();
}
@Test
void testTrip() {
Receptor src_rr = new Receptor();
SourceSession src_s = src.mb.createSourceSession(src_rr);
new Proxy(pxy.mb);
assertTrue(src.waitSlobrok("test/pxy/session", 1));
new Server(dst.mb);
assertTrue(src.waitSlobrok("test/dst/session", 1));
assertTrue(pxy.waitSlobrok("test/dst/session", 1));
Message msg = new SimpleMessage("");
msg.getTrace().setLevel(1);
msg.getTrace().trace(1, "Client message", false);
src_s.send(msg, "test");
Reply reply = src_rr.getReply(60);
reply.getTrace().trace(1, "Client reply", false);
assertEquals(reply.getNumErrors(), 0);
TraceNode t = new TraceNode()
.addChild("Client message")
.addChild("Proxy message")
.addChild("Server message")
.addChild("Server reply")
.addChild("Proxy reply")
.addChild("Client reply");
System.out.println("reply: " + reply.getTrace().getRoot().encode());
System.out.println("want : " + t.encode());
assertEquals(reply.getTrace().getRoot().encode(), t.encode());
}
private static class Proxy implements MessageHandler, ReplyHandler {
private IntermediateSession session;
public Proxy(MessageBus bus) {
session = bus.createIntermediateSession("session", true, this, this);
}
public void handleMessage(Message msg) {
msg.getTrace().trace(1, "Proxy message", false);
System.out.println(msg.getTrace().getRoot().encode());
session.forward(msg);
}
public void handleReply(Reply reply) {
reply.getTrace().trace(1, "Proxy reply", false);
System.out.println(reply.getTrace().getRoot().encode());
session.forward(reply);
}
}
private static class Server implements MessageHandler {
private DestinationSession session;
public Server(MessageBus bus) {
session = bus.createDestinationSession("session", true, this);
}
public void handleMessage(Message msg) {
msg.getTrace().trace(1, "Server message", false);
System.out.println(msg.getTrace().getRoot().encode());
Reply reply = new EmptyReply();
msg.swapState(reply);
reply.getTrace().trace(1, "Server reply", false);
System.out.println(reply.getTrace().getRoot().encode());
session.reply(reply);
}
}
}
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