CometDAdviceTest.java

/*
 * Copyright (c) 2008-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.cometd.javascript;

import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import org.cometd.bayeux.Channel;
import org.cometd.bayeux.Message;
import org.cometd.bayeux.server.BayeuxServer;
import org.cometd.bayeux.server.ServerMessage;
import org.cometd.bayeux.server.ServerSession;
import org.cometd.server.BayeuxServerImpl;
import org.junit.Assert;
import org.junit.Test;
import org.mozilla.javascript.ScriptableObject;

public class CometDAdviceTest extends AbstractCometDTest {
    @Test
    public void testNoHandshakeAdviceAfterSessionExpired() throws Exception {
        // Removed handshake advices to make sure the client behaves well without them.
        bayeuxServer.addExtension(new BayeuxServer.Extension.Adapter() {
            @Override
            public boolean sendMeta(ServerSession to, ServerMessage.Mutable message) {
                if (Channel.META_HANDSHAKE.equals(message.getChannel())) {
                    message.remove(Message.ADVICE_FIELD);
                }
                return true;
            }
        });

        defineClass(HandshakeListener.class);
        evaluateScript("var handshakeListener = new HandshakeListener();");
        HandshakeListener handshakeListener = get("handshakeListener");
        handshakeListener.server = bayeuxServer;

        defineClass(Latch.class);
        evaluateScript("var connectLatch = new Latch(1);");
        Latch connectLatch = get("connectLatch");

        evaluateScript("cometd.configure({" +
                "url: '" + cometdURL + "', " +
                "logLevel: '" + getLogLevel() + "'" +
                "});");
        evaluateScript("cometd.addListener('/meta/connect', function(cn) {" +
                "    if (cn.successful) { connectLatch.countDown(); }" +
                "});");
        evaluateScript("cometd.handshake(function(hs) { handshakeListener.handle(hs); });");

        Assert.assertTrue(handshakeListener.await(5, TimeUnit.SECONDS));
        Assert.assertTrue(connectLatch.await(5000));

        evaluateScript("cometd.disconnect(true);");
    }

    public static class HandshakeListener extends ScriptableObject {
        private final CountDownLatch latch = new CountDownLatch(1);
        private BayeuxServerImpl server;
        private int handshakes;

        @Override
        public String getClassName() {
            return "HandshakeListener";
        }

        public void jsFunction_handle(Object jsMessage) {
            @SuppressWarnings("unchecked")
            Map<String, Object> message = (Map<String, Object>)Utils.jsToJava(jsMessage);
            if ((Boolean)message.get("successful")) {
                ++handshakes;
                if (handshakes == 1) {
                    server.removeSession(server.getSession((String)message.get("clientId")));
                } else if (handshakes == 2) {
                    latch.countDown();
                }
            }
        }

        private boolean await(long time, TimeUnit unit) throws InterruptedException {
            return latch.await(time, unit);
        }
    }
}