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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.messagebus.routing;
import com.yahoo.jrt.ListenFailedException;
import com.yahoo.jrt.slobrok.server.Slobrok;
import com.yahoo.messagebus.DestinationSession;
import com.yahoo.messagebus.DestinationSessionParams;
import com.yahoo.messagebus.EmptyReply;
import com.yahoo.messagebus.Error;
import com.yahoo.messagebus.ErrorCode;
import com.yahoo.messagebus.Message;
import com.yahoo.messagebus.MessageBusParams;
import com.yahoo.messagebus.Reply;
import com.yahoo.messagebus.SourceSession;
import com.yahoo.messagebus.SourceSessionParams;
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.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.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.net.UnknownHostException;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Simon Thoresen Hult
*/
public class AdvancedRoutingTestCase {
Slobrok slobrok;
TestServer srcServer, dstServer;
SourceSession srcSession;
DestinationSession dstFoo, dstBar, dstBaz;
@BeforeEach
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)));
dstFoo = dstServer.mb.createDestinationSession(new DestinationSessionParams().setName("foo").setMessageHandler(new Receptor()));
dstBar = dstServer.mb.createDestinationSession(new DestinationSessionParams().setName("bar").setMessageHandler(new Receptor()));
dstBaz = dstServer.mb.createDestinationSession(new DestinationSessionParams().setName("baz").setMessageHandler(new Receptor()));
srcServer = new TestServer(new MessageBusParams().setRetryPolicy(new RetryTransientErrorsPolicy().setBaseDelay(0)).addProtocol(new SimpleProtocol()),
new RPCNetworkParams().setSlobrokConfigId(TestServer.getSlobrokConfig(slobrok)));
srcSession = srcServer.mb.createSourceSession(
new SourceSessionParams().setTimeout(600.0).setReplyHandler(new Receptor()));
assertTrue(srcServer.waitSlobrok("dst/*", 3));
}
@AfterEach
public void tearDown() {
slobrok.stop();
dstFoo.destroy();
dstBar.destroy();
dstBaz.destroy();
dstServer.destroy();
srcSession.destroy();
srcServer.destroy();
}
@Test
void testAdvanced() {
SimpleProtocol protocol = new SimpleProtocol();
protocol.addPolicyFactory("Custom", new CustomPolicyFactory(false, ErrorCode.NO_ADDRESS_FOR_SERVICE));
srcServer.mb.putProtocol(protocol);
srcServer.setupRouting(new RoutingTableSpec(SimpleProtocol.NAME)
.addHop(new HopSpec("bar", "dst/bar"))
.addHop(new HopSpec("baz", "dst/baz"))
.addRoute(new RouteSpec("baz").addHop("baz")));
Message msg = new SimpleMessage("msg");
msg.getTrace().setLevel(9);
assertTrue(srcSession.send(msg, Route.parse("[Custom:" + dstFoo.getConnectionSpec() + ",bar,route:baz,dst/cox,?dst/unknown]")).isAccepted());
// Initial send.
assertNotNull(msg = ((Receptor) dstFoo.getMessageHandler()).getMessage(60));
dstFoo.acknowledge(msg);
assertNotNull(msg = ((Receptor) dstBar.getMessageHandler()).getMessage(60));
Reply reply = new EmptyReply();
reply.swapState(msg);
reply.addError(new Error(ErrorCode.TRANSIENT_ERROR, "bar"));
dstBar.reply(reply);
assertNotNull(msg = ((Receptor) dstBaz.getMessageHandler()).getMessage(60));
reply = new EmptyReply();
reply.swapState(msg);
reply.addError(new Error(ErrorCode.TRANSIENT_ERROR, "baz1"));
dstBaz.reply(reply);
// First retry.
assertNull(((Receptor) dstFoo.getMessageHandler()).getMessage(0));
assertNotNull(msg = ((Receptor) dstBar.getMessageHandler()).getMessage(60));
dstBar.acknowledge(msg);
assertNotNull(msg = ((Receptor) dstBaz.getMessageHandler()).getMessage(60));
reply = new EmptyReply();
reply.swapState(msg);
reply.addError(new Error(ErrorCode.TRANSIENT_ERROR, "baz2"));
dstBaz.reply(reply);
// Second retry.
assertNull(((Receptor) dstFoo.getMessageHandler()).getMessage(0));
assertNull(((Receptor) dstBar.getMessageHandler()).getMessage(0));
assertNotNull(msg = ((Receptor) dstBaz.getMessageHandler()).getMessage(60));
reply = new EmptyReply();
reply.swapState(msg);
reply.addError(new Error(ErrorCode.FATAL_ERROR, "baz3"));
dstBaz.reply(reply);
// Done.
reply = ((Receptor) srcSession.getReplyHandler()).getReply(60);
assertNotNull(reply);
assertEquals(2, reply.getNumErrors());
assertEquals(ErrorCode.FATAL_ERROR, reply.getError(0).getCode());
assertEquals(ErrorCode.NO_ADDRESS_FOR_SERVICE, reply.getError(1).getCode());
}
}
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