Package com.linkedin.databus2.core.container.request

Examples of com.linkedin.databus2.core.container.request.RequestProcessingException


        dispatcher.enqueueMessage(SourcesMessage.createSetSourcesIdsMessage(sourcesMap.values()));
        dispatcher.enqueueMessage(SourcesMessage.createSetSourcesSchemasMessage(schemaMap));

        log.info("starting event dispatch");

        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return null != dispatcher.getDispatcherState().getEventsIterator() &&
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        log.info("send both windows");
        StreamEventsResult streamRes = srcEventsBuf.streamEvents(cp, writerStream, new StreamEventsArgs(win1Size));
        Assert.assertEquals("num events streamed should equal total number of events plus 2", // EOP events, presumably?
                            numEvents + 2, streamRes.getNumEventsStreamed());

        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return 2 == mockConsumer.getNumBeginWindowCalls();
          }
        }, "second window processing started", 5000, log);

        dispatcher.shutdown();
        mockConsumer.getLatch().countDown(); // remove the barrier

        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return ! dispatcherThread.isAlive();
          }
        }, "Ensure Dispatcher thread is shutdown", 5000, log);

        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return 0 == mockConsumer.getNumRollbacks();
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      {
        log.info("send first window -- that one should be OK");
        StreamEventsResult streamRes = srcEventsBuf.streamEvents(cp, writerStream, new StreamEventsArgs(win1Size));
        Assert.assertEquals(numEventsPerWindow + 1, streamRes.getNumEventsStreamed());

        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return 1 == callbackStats.getNumSysEventsProcessed();
          }
        }, "first window processed", 5000, log);

        log.info("send the second partial window -- that one should cause an error");
        streamRes = srcEventsBuf.streamEvents(cp, writerStream, new StreamEventsArgs(win2Size));
        Assert.assertEquals(numOfFailureEvent - numEventsPerWindow, streamRes.getNumEventsStreamed());

        log.info("wait for dispatcher to finish");
        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            log.info("events received: " + callbackStats.getNumDataEventsReceived());
            return numOfFailureEvent <= callbackStats.getNumDataEventsProcessed();
          }
        }, "all events until the error processed", 5000, log);

        log.info("all data events have been received but no EOW");
        Assert.assertEquals(numOfFailureEvent, clientStats.getTotalStats().getNumDataEvents());
        Assert.assertEquals(1, clientStats.getTotalStats().getNumSysEvents());
        //at least one failing event therefore < numOfFailureEvent events can be processed
        Assert.assertTrue(numOfFailureEvent <= callbackStats.getNumDataEventsProcessed());
        //onDataEvent callbacks for e2_1 and e2_2 get cancelled
        Assert.assertEquals(2, callbackStats.getNumDataErrorsProcessed());
        //only one EOW
        Assert.assertEquals(1, callbackStats.getNumSysEventsProcessed());

        log.info("Send the remainder of the window");
        streamRes = srcEventsBuf.streamEvents(cp, writerStream, new StreamEventsArgs(100000));
        //remaining events + EOWs
        Assert.assertEquals(srcTestEvents.size() + numWindows - (numOfFailureEvent + 1),
                            streamRes.getNumEventsStreamed());

        log.info("wait for the rollback");
        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return 1 == mockConsumer.getNumRollbacks();
          }
        }, "rollback seen", 5000, log);

        log.info("wait for dispatcher to finish after the rollback");
        TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            log.info("num windows processed: " + callbackStats.getNumSysEventsProcessed());
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    try {Thread.sleep(300);} catch (InterruptedException ie){};
    //System.err.println("Done Waiting for 300");

    //the client should have timed out and closed the connection

    TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return null != clientExceptionListener.getLastException();
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    }

        public boolean shutdown(long timeoutMs, final Logger log)
        {
            _conn.stop();
            TestUtil.assertWithBackoff(new ConditionCheck()
            {

              @Override
              public boolean check()
              {
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    //hook in to key places in the server pipeline
    ChannelPipeline lastSrvConnPipeline = srvConn.getLastConnChannel().getPipeline();
    SimpleTestMessageReader srvMsgReader = (SimpleTestMessageReader)lastSrvConnPipeline.get(
        SimpleTestMessageReader.class.getSimpleName());
    ExceptionListenerTestHandler srvExceptionListener =
        (ExceptionListenerTestHandler)lastSrvConnPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());

    //hook in to key places in the client pipeline
    ChannelPipeline clientPipeline = clientConn.getChannel().getPipeline();
    final ExceptionListenerTestHandler clientExceptionListener =
        (ExceptionListenerTestHandler)clientPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());

    //System.err.println("Current thread: " + Thread.currentThread());

    //send a request in a separate thread because the client will intentionally block to simulate
    //a timeout
    final ChannelBuffer msg = ChannelBuffers.wrappedBuffer("hello".getBytes(Charset.defaultCharset()));
    Thread sendThread1 = new Thread(new Runnable()
        {
          @Override
          public void run()
          {
            //System.err.println(Thread.currentThread().toString() + ": sending message");
            clientConn.getChannel().write(msg);
          }
        }, "send msg thread");
    sendThread1.start();

    //wait for the request to propagate
    //System.err.println(Thread.currentThread().toString() + ": waiting for 10");
    try {Thread.sleep(50);} catch (InterruptedException ie){};
    //System.err.println(Thread.currentThread().toString() + ": done Waiting for 10");

    //make sure the server has not received the message
    Assert.assertNull(srvExceptionListener.getLastException(), "no server errors");
    Assert.assertNull(clientExceptionListener.getLastException(), "no errors yet");
    Assert.assertTrue(!"hello".equals(srvMsgReader.getMsg()), "message not read yet");

    //System.err.println("Waiting for 300");
    //wait for the write timeout
    try {Thread.sleep(300);} catch (InterruptedException ie){};
    //System.err.println("Done Waiting for 300");

    //the client should have timed out and closed the connection

    TestUtil.assertWithBackoff(new ConditionCheck()
        {
          @Override
          public boolean check()
          {
            return null != clientExceptionListener.getLastException();
          }
        }, "client error", 1000, null);

    Assert.assertTrue(null != clientExceptionListener.getLastException(),
                      "client error");
    Assert.assertTrue(clientExceptionListener.getLastException() instanceof ClosedChannelException
                      || clientExceptionListener.getLastException() instanceof WriteTimeoutException,
                      "client error test");
    Assert.assertTrue(! lastSrvConnPipeline.getChannel().isConnected(), "client has disconnected");
    Assert.assertTrue(! clientPipeline.getChannel().isConnected(), "closed connection to server");

  }
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    SimpleTestServerConnection srvConn = new SimpleTestServerConnection(eventFactory.getByteOrder());
    srvConn.setPipelineFactory(new SimpleServerPipelineFactory());
    boolean serverStarted = srvConn.startSynchronously(101, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(serverStarted, "server started");

    final SimpleTestClientConnection clientConn = new SimpleTestClientConnection(eventFactory.getByteOrder());
    clientConn.setPipelineFactory(new SimpleClientPipelineFactoryWithSleep(200));
    boolean clientConnected = clientConn.startSynchronously(101, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(clientConnected, "client connected");

    //hook in to key places in the server pipeline
    ChannelPipeline lastSrvConnPipeline = srvConn.getLastConnChannel().getPipeline();
    SimpleTestMessageReader srvMsgReader = (SimpleTestMessageReader)lastSrvConnPipeline.get(
        SimpleTestMessageReader.class.getSimpleName());
    ExceptionListenerTestHandler srvExceptionListener =
        (ExceptionListenerTestHandler)lastSrvConnPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());

    //hook in to key places in the client pipeline
    ChannelPipeline clientPipeline = clientConn.getChannel().getPipeline();
    final ExceptionListenerTestHandler clientExceptionListener =
        (ExceptionListenerTestHandler)clientPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());

    //System.err.println("Current thread: " + Thread.currentThread());

    //send a request in a separate thread because the client will intentionally block to simulate
    //a timeout
    final ChannelBuffer msg = ChannelBuffers.wrappedBuffer("hello".getBytes(Charset.defaultCharset()));
    Thread sendThread1 = new Thread(new Runnable()
        {
          @Override
          public void run()
          {
            //System.err.println(Thread.currentThread().toString() + ": sending message");
            clientConn.getChannel().write(msg);
          }
        }, "send msg thread");
    sendThread1.start();

    //wait for the request to propagate
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    boolean clientConnected = clientConn.startSynchronously(101, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(clientConnected, "client connected");

    //hook in to key places in the server pipeline
    ChannelPipeline lastSrvConnPipeline = srvConn.getLastConnChannel().getPipeline();
    SimpleTestMessageReader srvMsgReader = (SimpleTestMessageReader)lastSrvConnPipeline.get(
        SimpleTestMessageReader.class.getSimpleName());
    ExceptionListenerTestHandler srvExceptionListener =
        (ExceptionListenerTestHandler)lastSrvConnPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());

    //hook in to key places in the client pipeline
    ChannelPipeline clientPipeline = clientConn.getChannel().getPipeline();
    final ExceptionListenerTestHandler clientExceptionListener =
        (ExceptionListenerTestHandler)clientPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());

    //System.err.println("Current thread: " + Thread.currentThread());

    //send a request in a separate thread because the client will intentionally block to simulate
    //a timeout
    final ChannelBuffer msg = ChannelBuffers.wrappedBuffer("hello".getBytes(Charset.defaultCharset()));
    Thread sendThread1 = new Thread(new Runnable()
        {
          @Override
          public void run()
          {
            //System.err.println(Thread.currentThread().toString() + ": sending message");
            clientConn.getChannel().write(msg);
          }
        }, "send msg thread");
    sendThread1.start();

    //wait for the request to propagate
    //System.err.println(Thread.currentThread().toString() + ": waiting for 10");
    try {Thread.sleep(50);} catch (InterruptedException ie){};
    //System.err.println(Thread.currentThread().toString() + ": done Waiting for 10");

    //make sure the server has not received the message
    Assert.assertNull(srvExceptionListener.getLastException(), "no server errors");
    Assert.assertNull(clientExceptionListener.getLastException(), "no errors yet");
    Assert.assertTrue(!"hello".equals(srvMsgReader.getMsg()), "message not read yet");

    //System.err.println("Waiting for 300");
    //wait for the write timeout
    try {Thread.sleep(300);} catch (InterruptedException ie){};
    //System.err.println("Done Waiting for 300");
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  {
    TestUtil.setupLoggingWithTimestampedFile(true, "/tmp/TestGenericHttpResponseHandler_",
                                             ".log", Level.INFO);
    InternalLoggerFactory.setDefaultFactory(new Log4JLoggerFactory());

    _dummyServer = new SimpleTestServerConnection(ByteOrder.BIG_ENDIAN,
                                                  SimpleTestServerConnection.ServerType.NIO);
    _dummyServer.setPipelineFactory(new ChannelPipelineFactory() {
      @Override
      public ChannelPipeline getPipeline() throws Exception {
        return Channels.pipeline(new HttpServerCodec());
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  @Test
  public void testClientSimpleRequestResponse()
  {
    DbusEventFactory eventFactory = new DbusEventV1Factory();

    SimpleTestServerConnection srvConn = new SimpleTestServerConnection(eventFactory.getByteOrder());
    srvConn.setPipelineFactory(new SimpleServerPipelineFactory());
    boolean serverStarted = srvConn.startSynchronously(101, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(serverStarted, "server started");

    final SimpleTestClientConnection clientConn = new SimpleTestClientConnection(eventFactory.getByteOrder());
    clientConn.setPipelineFactory(new SimpleClientPipelineFactoryWithSleep(200));
    boolean clientConnected = clientConn.startSynchronously(101, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(clientConnected, "client connected");

    //hook in to key places in the server pipeline
    ChannelPipeline lastSrvConnPipeline = srvConn.getLastConnChannel().getPipeline();
    SimpleTestMessageReader srvMsgReader = (SimpleTestMessageReader)lastSrvConnPipeline.get(
        SimpleTestMessageReader.class.getSimpleName());
    ExceptionListenerTestHandler srvExceptionListener =
        (ExceptionListenerTestHandler)lastSrvConnPipeline.get(
            ExceptionListenerTestHandler.class.getSimpleName());
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