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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.shared;
import com.yahoo.cloud.config.SlobroksConfig;
import com.yahoo.jrt.ListenFailedException;
import com.yahoo.jrt.slobrok.server.Slobrok;
import com.yahoo.messagebus.*;
import com.yahoo.messagebus.jdisc.test.MessageQueue;
import com.yahoo.messagebus.jdisc.test.RemoteClient;
import com.yahoo.messagebus.jdisc.test.ReplyQueue;
import com.yahoo.messagebus.jdisc.test.TestUtils;
import com.yahoo.messagebus.network.rpc.RPCNetworkParams;
import com.yahoo.messagebus.routing.Route;
import com.yahoo.messagebus.test.SimpleMessage;
import com.yahoo.messagebus.test.SimpleProtocol;
import com.yahoo.messagebus.test.SimpleReply;
import org.junit.Test;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.*;
/**
* @author Simon Thoresen Hult
*/
public class SharedDestinationSessionTestCase {
@Test
public void requireThatMessageHandlerCanBeAccessed() {
SharedDestinationSession session = newDestinationSession();
assertNull(session.getMessageHandler());
MessageQueue handler = new MessageQueue();
session.setMessageHandler(handler);
assertSame(handler, session.getMessageHandler());
}
@Test
public void requireThatMessageHandlerCanOnlyBeSetOnce() {
SharedDestinationSession session = newDestinationSession();
session.setMessageHandler(new MessageQueue());
try {
session.setMessageHandler(new MessageQueue());
fail();
} catch (IllegalStateException e) {
assertEquals("Message handler already registered.", e.getMessage());
}
session.release();
}
@Test
public void requireThatMessageHandlerIsCalled() throws InterruptedException {
SharedDestinationSession session = newDestinationSession();
MessageQueue queue = new MessageQueue();
session.setMessageHandler(queue);
session.handleMessage(new SimpleMessage("foo"));
assertNotNull(queue.awaitMessage(60, TimeUnit.SECONDS));
session.release();
}
@Test
public void requireThatSessionRepliesIfMessageHandlerIsNull() throws InterruptedException {
SharedDestinationSession session = newDestinationSession();
Message msg = new SimpleMessage("foo");
ReplyQueue queue = new ReplyQueue();
msg.pushHandler(queue);
session.handleMessage(msg);
Reply reply = queue.awaitReply(60, TimeUnit.SECONDS);
assertNotNull(reply);
assertEquals(1, reply.getNumErrors());
assertEquals(ErrorCode.SESSION_BUSY, reply.getError(0).getCode());
session.release();
}
@Test
public void requireThatSessionIsClosedOnDestroy() {
SharedDestinationSession session = newDestinationSession();
session.release();
assertFalse("DestinationSession not destroyed by release().", session.session().destroy());
}
@Test
public void requireThatMbusIsReleasedOnDestroy() {
Slobrok slobrok = null;
try {
slobrok = new Slobrok();
} catch (ListenFailedException e) {
fail();
}
RPCNetworkParams netParams = new RPCNetworkParams().setSlobrokConfigId(slobrok.configId());
SharedMessageBus mbus = SharedMessageBus.newInstance(new MessageBusParams(), netParams);
SharedDestinationSession session = mbus.newDestinationSession(new DestinationSessionParams());
mbus.release();
session.release();
assertFalse("MessageBus not destroyed by release().", mbus.messageBus().destroy());
}
@Test
public void requireThatSessionCanSendReply() throws InterruptedException {
RemoteClient client = RemoteClient.newInstanceWithInternSlobrok(true);
MessageQueue queue = new MessageQueue();
DestinationSessionParams params = new DestinationSessionParams().setMessageHandler(queue);
SharedDestinationSession session = newDestinationSession(client.slobroksConfig(), params);
Route route = Route.parse(session.connectionSpec());
assertTrue(client.sendMessage(new SimpleMessage("foo").setRoute(route)).isAccepted());
Message msg = queue.awaitMessage(60, TimeUnit.SECONDS);
assertNotNull(msg);
Reply reply = new SimpleReply("bar");
reply.swapState(msg);
session.sendReply(reply);
assertNotNull(client.awaitReply(60, TimeUnit.SECONDS));
session.release();
client.close();
}
private static SharedDestinationSession newDestinationSession() {
Slobrok slobrok = null;
try {
slobrok = new Slobrok();
} catch (ListenFailedException e) {
fail();
}
return newDestinationSession(TestUtils.configFor(slobrok), new DestinationSessionParams());
}
private static SharedDestinationSession newDestinationSession(SlobroksConfig slobroksConfig, DestinationSessionParams params) {
RPCNetworkParams netParams = new RPCNetworkParams().setSlobroksConfig(slobroksConfig);
MessageBusParams mbusParams = new MessageBusParams().addProtocol(new SimpleProtocol());
SharedMessageBus mbus = SharedMessageBus.newInstance(mbusParams, netParams);
SharedDestinationSession session = mbus.newDestinationSession(params);
mbus.release();
return session;
}
}
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