/*
* Copyright (c) 2008-2014 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.extension;
import org.cometd.javascript.AbstractCometDTest;
import org.cometd.javascript.Latch;
import org.junit.Assert;
import org.junit.Test;
import org.mozilla.javascript.ScriptableObject;
public class CometDExtensionsTest extends AbstractCometDTest
{
@Test
public void testRegisterUnregister() throws Exception
{
defineClass(Latch.class);
evaluateScript("cometd.configure({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "'});");
evaluateScript("var inCount = 0;");
evaluateScript("var outCount = 0;");
evaluateScript("cometd.registerExtension('testin', {" +
"incoming: function(message) { ++inCount; return message;}" +
"});");
evaluateScript("cometd.registerExtension('testout', {" +
"outgoing: function(message) { ++outCount; return message;}" +
"});");
evaluateScript("cometd.registerExtension('testempty', {});");
evaluateScript("var readyLatch = new Latch(1);");
Latch readyLatch = get("readyLatch");
evaluateScript("cometd.addListener('/meta/connect', function(message) { readyLatch.countDown(); });");
evaluateScript("cometd.handshake();");
Assert.assertTrue(readyLatch.await(5000));
// Wait for the long poll to be established
Thread.sleep(1000);
Number inCount = get("inCount");
Number outCount = get("outCount");
Assert.assertEquals(2, inCount.intValue()); // handshake, connect1
Assert.assertEquals(3, outCount.intValue()); // handshake, connect1, connect2
Boolean unregistered = evaluateScript("cometd.unregisterExtension('testin');");
Assert.assertTrue(unregistered);
unregistered = evaluateScript("cometd.unregisterExtension('testout');");
Assert.assertTrue(unregistered);
evaluateScript("var publishLatch = new Latch(1);");
Latch publishLatch = get("publishLatch");
evaluateScript("cometd.addListener('/meta/publish', function(message) { publishLatch.countDown(); });");
evaluateScript("cometd.publish('/echo', 'ping');");
Assert.assertTrue(publishLatch.await(5000));
inCount = get("inCount");
outCount = get("outCount");
Assert.assertEquals(2, inCount.intValue());
Assert.assertEquals(3, outCount.intValue());
evaluateScript("cometd.disconnect(true);");
}
@Test
public void testExtensions() throws Exception
{
defineClass(Latch.class);
defineClass(Listener.class);
evaluateScript("cometd.configure({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "'});");
evaluateScript("" +
"var listener = new Listener();" +
"cometd.registerExtension('testext', {" +
"incoming: function(message) { listener.incoming(message); return message;}," +
"outgoing: function(message) { listener.outgoing(message); return message;}" +
"});");
Listener listener = get("listener");
evaluateScript("var readyLatch = new Latch(1);");
Latch readyLatch = get("readyLatch");
evaluateScript("cometd.addListener('/meta/connect', function(message) { readyLatch.countDown(); });");
evaluateScript("cometd.handshake();");
Assert.assertTrue(readyLatch.await(5000));
// Wait for the long poll to be established
// Cannot rely on latches for this, since we need to intercept the connect2
Thread.sleep(1000);
Assert.assertEquals(3, listener.getOutgoingMessageCount()); // handshake, connect1, connect2
Assert.assertEquals(2, listener.getIncomingMessageCount()); // handshake, connect1
listener.reset();
evaluateScript("var subscribeLatch = new Latch(1);");
Latch subscribeLatch = get("subscribeLatch");
evaluateScript("cometd.addListener('/meta/subscribe', subscribeLatch, 'countDown');");
evaluateScript("var messageLatch = new Latch(1);");
Latch messageLatch = get("messageLatch");
evaluateScript("var subscription = cometd.subscribe('/echo', messageLatch, 'countDown');");
Assert.assertTrue(subscribeLatch.await(5000));
Assert.assertEquals(1, listener.getOutgoingMessageCount()); // subscribe
Assert.assertEquals(1, listener.getIncomingMessageCount()); // subscribe
listener.reset();
evaluateScript("var publishLatch = new Latch(1);");
Latch publishLatch = get("publishLatch");
evaluateScript("cometd.addListener('/meta/publish', publishLatch, 'countDown');");
evaluateScript("cometd.publish('/echo', 'test');");
Assert.assertTrue(publishLatch.await(5000));
Assert.assertTrue(messageLatch.await(5000));
Assert.assertEquals(1, listener.getOutgoingMessageCount()); // publish
Assert.assertEquals(2, listener.getIncomingMessageCount()); // publish, message
listener.reset();
evaluateScript("var unsubscribeLatch = new Latch(1);");
Latch unsubscribeLatch = get("unsubscribeLatch");
evaluateScript("cometd.addListener('/meta/unsubscribe', unsubscribeLatch, 'countDown');");
evaluateScript("cometd.unsubscribe(subscription);");
Assert.assertTrue(unsubscribeLatch.await(5000));
Assert.assertEquals(1, listener.getOutgoingMessageCount()); // unsubscribe
Assert.assertEquals(1, listener.getIncomingMessageCount()); // unsubscribe
readyLatch.reset(1);
listener.reset();
evaluateScript("cometd.disconnect(true);");
Assert.assertTrue(readyLatch.await(5000));
// Wait for the connect to return
Thread.sleep(1000);
Assert.assertEquals(1, listener.getOutgoingMessageCount()); // disconnect
Assert.assertEquals(2, listener.getIncomingMessageCount()); // connect2, disconnect
}
@Test
public void testExtensionOrder() throws Exception
{
defineClass(Latch.class);
// Default incoming extension order is reverse
evaluateScript("cometd.configure({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "'});");
evaluateScript("cometd.registerExtension('ext1', {" +
"incoming: function(message) " +
"{" +
" if (message.ext2 === 1) message.ext1 = 1;" +
" return message;" +
"} " +
"});");
evaluateScript("cometd.registerExtension('ext2', {" +
"incoming: function(message) " +
"{" +
" if (message.ext1 !== 1) message.ext2 = 1;" +
" return message;" +
"} " +
"});");
evaluateScript("var ok = false;");
evaluateScript("cometd.addListener('/meta/handshake', function(message) " +
"{" +
" if (message.ext1 === 1 && message.ext2 === 1) ok = true;" +
"});");
evaluateScript("var readyLatch = new Latch(1);");
Latch readyLatch = get("readyLatch");
evaluateScript("cometd.addListener('/meta/connect', function(message) { readyLatch.countDown(); });");
evaluateScript("cometd.handshake();");
Assert.assertTrue(readyLatch.await(5000));
Assert.assertTrue((Boolean)get("ok"));
evaluateScript("cometd.disconnect(true);");
// Wait for the connect to return
Thread.sleep(1000);
evaluateScript("cometd.unregisterExtension('ext1');");
evaluateScript("cometd.unregisterExtension('ext2');");
evaluateScript("ok = false;");
// Set incoming extension order to be forward
evaluateScript("cometd.configure({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "', reverseIncomingExtensions: false});");
evaluateScript("cometd.registerExtension('ext1', {" +
"incoming: function(message) " +
"{" +
" if (message.ext2 !== 1) message.ext1 = 1;" +
" return message;" +
"} " +
"});");
evaluateScript("cometd.registerExtension('ext2', {" +
"incoming: function(message) " +
"{" +
" if (message.ext1 === 1) message.ext2 = 1;" +
" return message;" +
"} " +
"});");
readyLatch.reset(1);
evaluateScript("cometd.handshake();");
Assert.assertTrue(readyLatch.await(5000));
Assert.assertTrue((Boolean)get("ok"));
evaluateScript("cometd.disconnect(true);");
}
@Test
public void testExtensionRegistrationCallbacks() throws Exception
{
evaluateScript("cometd.configure({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "'});");
evaluateScript("var n;");
evaluateScript("var c;");
evaluateScript("cometd.registerExtension('ext1', {" +
"registered: function(name, cometd) " +
"{" +
" n = name;" +
" c = cometd;" +
"}," +
"unregistered: function()" +
"{" +
" n = null;" +
" c = null;" +
"}" +
"});");
Object extName = get("n");
Assert.assertNotNull(extName);
Object extCometD = get("c");
Assert.assertNotNull(extCometD);
evaluateScript("cometd.unregisterExtension('ext1');");
extName = get("n");
Assert.assertNull(extName);
extCometD = get("c");
Assert.assertNull(extCometD);
}
public static class Listener extends ScriptableObject
{
private int outgoing;
private int incoming;
public void jsFunction_outgoing(Object message)
{
++outgoing;
}
public void jsFunction_incoming(Object message)
{
++incoming;
}
public String getClassName()
{
return "Listener";
}
public int getOutgoingMessageCount()
{
return outgoing;
}
public int getIncomingMessageCount()
{
return incoming;
}
public void reset()
{
incoming = 0;
outgoing = 0;
}
}
}