Package org.mule.util.concurrent

Examples of org.mule.util.concurrent.Latch

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    }
   
    protected MuleEvent receiveAsyncReply(MuleEvent event) throws MessagingException
    {
        String asyncReplyCorrelationId = getAsyncReplyCorrelationId(event);
        Latch asyncReplyLatch = locks.get(asyncReplyCorrelationId);
        // flag for catching the interrupted status of the Thread waiting for a
        // result
        boolean interruptedWhileWaiting = false;
        boolean resultAvailable = false;
        MuleEvent result = null;

        try
        {
            if (logger.isDebugEnabled())
            {
                logger.debug("Waiting for async reply message with id: " + asyncReplyCorrelationId);
            }
            // how long should we wait for the lock?
            if (timeout <= 0)
            {
                asyncReplyLatch.await();
                resultAvailable = true;
            }
            else
            {
                resultAvailable = asyncReplyLatch.await(timeout, TimeUnit.MILLISECONDS);
            }
            if (!resultAvailable)
            {
                postLatchAwait(asyncReplyCorrelationId);
                resultAvailable = asyncReplyLatch.getCount() == 0;
            }
        }
        catch (InterruptedException e)
        {
            interruptedWhileWaiting = true;
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                // this would indicate that we need a better way to prevent
                // continued aggregation for a group that is currently being
                // processed. Can this actually happen?
                throw new IllegalStateException("Detected duplicate result message with id: " + messageId);
            }
            Latch l = locks.get(messageId);
            if (l != null)
            {
                l.countDown();
            }
            else
            {
                logger.warn("Unexpected  message with id " + messageId
                            + " received.   This message will be discarded.");
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    public void testReceiveSync() throws Exception
    {
        startService(RECEIVE_SERVICE_NAME);

        Latch receiveLatch = new Latch();
        setupTestServiceComponent(receiveLatch);
       
        sendJabberMessageFromNewThread();
        assertTrue(receiveLatch.await(60, TimeUnit.SECONDS));
    }
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        }
        InboundEndpoint endpoint =
            muleContext.getEndpointFactory().getInboundEndpoint(endpointBuilder);
        ((CompositeMessageSource) service.getMessageSource()).addSource(endpoint);
       
        final Latch latch = new Latch();
        FunctionalTestComponent testComponent = new FunctionalTestComponent();
        testComponent.setMuleContext(muleContext);
        testComponent.setEventCallback(new EventCallback()
        {
            public void eventReceived(final MuleEventContext context, final Object message) throws Exception
            {               
                assertEquals(1, latch.getCount());
                assertEquals(TEST_MESSAGE, context.transformMessageToString());
                latch.countDown();
            }
        });
        testComponent.initialise();
       
        final DefaultJavaComponent component = new DefaultJavaComponent(new SingletonObjectFactory(testComponent));
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        client.stop();
    }

    public void testDispatchReceiveSimple() throws Exception
    {
        final Latch latch = new Latch();

        final AtomicReference<Object> data = new AtomicReference<Object>();
        client.addListener(new MessageListener()
        {
            public void deliver(Client client, Client client1, Message message)
            {
                if (message.getData() != null)
                {
                    //This simulate what the browser would receive
                    data.set((message.getData()));
                    latch.release();
                }
            }
        });
        //The '/response' channel is set on the request message
        client.subscribe("/response");
        //Simulates dispatching from the browser
        client.publish("/request", TEST_JSON_MESSAGE, null);
        latch.await(10, TimeUnit.SECONDS);

        assertNotNull(data.get());
        assertEquals("{\"value1\":\"foo\",\"value2\":\"bar\"}", data.get());
    }
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        // Make sure that the transport could find the method
        assertNotNull(messageReceiver.invokeMethod);

        // Poll once
        callbackCalled = new Latch();
        messageReceiver.poll();
        assertTrue(callbackCalled.await(1000, TimeUnit.MILLISECONDS));
    }
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        /*
         * Give mule and the clients time to warm up; we get an intermittent failure,
         * see if this helps
         */
        Thread.sleep(5000);
        final Latch latch = new Latch();

        final AtomicReference<Object> data = new AtomicReference<Object>();
        bayeuxClient.addListener(new MessageListener()
        {
            public void deliver(Client fromClient, Client toClient, Message message)
            {

                if (message.getData() != null)
                {
                    // This simulates what the browser would receive
                    data.set(message.toString());
                    latch.release();
                }
            }
        });
        bayeuxClient.subscribe("/test1");

        MuleClient muleClient = new MuleClient(muleContext);
        muleClient.dispatch("vm://in1", "Ross", null);

        latch.await(10, TimeUnit.SECONDS);
        assertNotNull(data.get());
       
        // parse the result string into java objects.  different jvms return it in different order, so we can't do a straight string comparison
        ObjectMapper mapper = new ObjectMapper();
        Map<?, ?> result  = mapper.readValue((String) data.get(), Map.class);
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        }
    }

    public void testClientSubscribeWithJsonObjectResponse() throws Exception
    {
        final Latch latch = new Latch();

        final AtomicReference<String> data = new AtomicReference<String>();
        client.addListener(new MessageListener()
        {
            public void deliver(Client fromClient, Client toClient, Message message)
            {
                if (message.getData() != null)
                {
                    // This simulate what the browser would receive
                    data.set(message.toString());
                    latch.release();
                }
            }
        });
        client.subscribe("/test1");

        MuleClient muleClient = new MuleClient(muleContext);
        muleClient.dispatch("vm://in1", "Ross", null);
        assertTrue("data did not arrive in 10 seconds", latch.await(10, TimeUnit.SECONDS));

        assertNotNull(data.get());

        // parse the result string into java objects. different jvms return it in
        // different order, so we can't do a straight string comparison
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    public void testReceiveSync() throws Exception
    {
        startService(RECEIVE_SERVICE_NAME);
       
        Latch receiveLatch = new Latch();
        setupTestServiceComponent(receiveLatch);
       
        sendJabberMessageFromNewThread();
        assertTrue(receiveLatch.await(RECEIVE_TIMEOUT, TimeUnit.MILLISECONDS));
    }
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        assertTrue(resString.contains("<echoResponse xmlns=\"http://www.muleumo.org\">"));
    }
   
    public void testServerClientProxyWithWsdl() throws Exception
    {
        final Latch latch = new Latch();
        ((FunctionalTestComponent) getComponent("serverClientProxyWithWsdl")).setEventCallback(new EventCallback()
        {

            public void eventReceived(MuleEventContext context, Object component) throws Exception
            {
                latch.countDown();
            }
        });

        String msg = "<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"
                     + "<soap:Body> <test xmlns=\"http://foo\"></test>" + "</soap:Body>" + "</soap:Envelope>";

        MuleClient client = new MuleClient(muleContext);
        MuleMessage result = client.send("http://localhost:" + getPorts().get(0) + "/services/proxyWithWsdl", msg, null);
        String resString = result.getPayloadAsString();
        assertTrue(latch.await(1000, TimeUnit.MILLISECONDS));
        assertTrue(resString.indexOf("<test xmlns=\"http://foo\"") != -1);
    }
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