Examples with ExceptionListenerTestHandler com.linkedin.databus2.test.container.ExceptionListenerTestHandler used on opensource projects

Example 6 with ExceptionListenerTestHandler

use of com.linkedin.databus2.test.container.ExceptionListenerTestHandler in project databus by linkedin.

the class SimpleClientPipelineFactory method testServerComplexRequestResponse.

@Test
public /**
   * Simulates the follow communication with no induced timeouts
   *
   * <table>
   * <th><td>client</td><td>server</td></th>
   * <tr><td>send "hello1"</td><td></td></tr>
   * <tr><td></td><td>start read timeout</td></tr>
   * <tr><td>send "hello2"</td><td></td></tr>
   * <tr><td>:</td><td></td></tr>
   * <tr><td>:</td><td></td></tr>
   * <tr><td>send "hello50"</td><td></td></tr>
   * <tr><td>send "eom"</td><td></td></tr>
   * <tr><td>start read timeout</td><td></td></tr>
   * <tr><td></td><td>stop read timeout</td></tr>
   * <tr><td></td>send "hi there1"<td></td></tr>
   * <tr><td></td>send ":"<td></td></tr>
   * <tr><td></td>send "hi there100"<td></td></tr>
   * <tr><td></td>send "eom"<td></td></tr>
   * <tr><td>stop read timeout</td><td></td></tr>
   * </table>
   */
void testServerComplexRequestResponse() {
    SimpleTestServerConnection srvConn = new SimpleTestServerConnection(_eventFactory.getByteOrder());
    srvConn.setPipelineFactory(new SimpleServerPipelineFactory());
    boolean serverStarted = srvConn.startSynchronously(2, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(serverStarted, "server started");
    SimpleTestClientConnection clientConn = new SimpleTestClientConnection(_eventFactory.getByteOrder());
    clientConn.setPipelineFactory(new SimpleClientPipelineFactory());
    boolean clientConnected = clientConn.startSynchronously(2, CONNECT_TIMEOUT_MS);
    Assert.assertTrue(clientConnected, "client connected");
    //hook in to key places in the server pipeline
    ChannelPipeline lastSrvConnPipeline = srvConn.getLastConnChannel().getPipeline();
    ExtendedReadTimeoutHandler srvTimeoutHandler = (ExtendedReadTimeoutHandler) lastSrvConnPipeline.get(ExtendedReadTimeoutHandler.class.getSimpleName());
    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();
    ExtendedReadTimeoutHandler clientTimeoutHandler = (ExtendedReadTimeoutHandler) clientPipeline.get(ExtendedReadTimeoutHandler.class.getSimpleName());
    SimpleTestMessageReader clientMsgReader = (SimpleTestMessageReader) clientPipeline.get(SimpleTestMessageReader.class.getSimpleName());
    ExceptionListenerTestHandler clientExceptionListener = (ExceptionListenerTestHandler) clientPipeline.get(ExceptionListenerTestHandler.class.getSimpleName());
    for (int i = 0; i < 50; ++i) {
        //send a request
        ChannelBuffer msg = ChannelBuffers.wrappedBuffer(("hello" + i).getBytes(Charset.defaultCharset()));
        clientConn.getChannel().write(msg);
        //wait for the request to propagate
        try {
            Thread.sleep(10);
        } catch (InterruptedException ie) {
        }
        ;
        Assert.assertNull(srvExceptionListener.getLastException(), "no server read timeout: " + i);
        Assert.assertNull(clientExceptionListener.getLastException(), "no client read timeout: " + i);
        Assert.assertEquals(srvMsgReader.getMsg(), "hello" + i, "message read: " + i);
        //start server read timeout after the first message
        if (0 == i)
            srvTimeoutHandler.start(lastSrvConnPipeline.getContext(srvTimeoutHandler));
    }
    ChannelBuffer msg2 = ChannelBuffers.wrappedBuffer("eom".getBytes(Charset.defaultCharset()));
    clientConn.getChannel().write(msg2);
    //start the client timeout handler
    clientTimeoutHandler.start(clientPipeline.getContext(clientTimeoutHandler));
    Assert.assertNull(srvExceptionListener.getLastException(), "no server read timeout");
    Assert.assertNull(clientExceptionListener.getLastException(), "no client read timeout");
    Assert.assertEquals(srvMsgReader.getMsg(), "eom", "message read");
    //stop server read timeout
    srvTimeoutHandler.stop();
    for (int i = 0; i < 100; ++i) {
        String responseString = "hi there " + i;
        ChannelBuffer resp = ChannelBuffers.wrappedBuffer(responseString.getBytes(Charset.defaultCharset()));
        lastSrvConnPipeline.getChannel().write(resp);
        //wait for the response to propagate
        try {
            Thread.sleep(10);
        } catch (InterruptedException ie) {
        }
        ;
        Assert.assertNull(srvExceptionListener.getLastException(), "no server read timeout: " + i);
        Assert.assertNull(clientExceptionListener.getLastException(), "no client read timeout: " + i);
        Assert.assertEquals(clientMsgReader.getMsg(), responseString, "response read: " + i);
    }
    ChannelBuffer resp2 = ChannelBuffers.wrappedBuffer("eom".getBytes(Charset.defaultCharset()));
    lastSrvConnPipeline.getChannel().write(resp2);
    //wait for the response to propagate
    try {
        Thread.sleep(10);
    } catch (InterruptedException ie) {
    }
    ;
    Assert.assertNull(srvExceptionListener.getLastException(), "no server read timeout");
    Assert.assertNull(clientExceptionListener.getLastException(), "no client read timeout");
    Assert.assertEquals(clientMsgReader.getMsg(), "eom", "response read");
    //stop client read timeout
    clientTimeoutHandler.stop();
    clientConn.stop();
    srvConn.stop();
}