Example usage for org.springframework.integration.ip.tcp.connection TcpNioConnection send

Introduction

In this page you can find the example usage for org.springframework.integration.ip.tcp.connection TcpNioConnection send.

Prototype

@Override
    @SuppressWarnings("unchecked")
    public void send(Message<?> message) 

Source Link

Usage

From source file:org.springframework.integration.ip.tcp.connection.TcpNioConnectionTests.java

@Test
public void transferHeaders() throws Exception {
    Socket inSocket = mock(Socket.class);
    SocketChannel inChannel = mock(SocketChannel.class);
    when(inChannel.socket()).thenReturn(inSocket);

    TcpNioConnection inboundConnection = new TcpNioConnection(inChannel, true, false, nullPublisher, null);
    inboundConnection.setDeserializer(new MapJsonSerializer());
    MapMessageConverter inConverter = new MapMessageConverter();
    MessageConvertingTcpMessageMapper inMapper = new MessageConvertingTcpMessageMapper(inConverter);
    inboundConnection.setMapper(inMapper);
    final ByteArrayOutputStream written = new ByteArrayOutputStream();
    doAnswer(new Answer<Integer>() {

        @Override/*from  ww w  . j  a v a  2 s. c  o  m*/
        public Integer answer(InvocationOnMock invocation) throws Throwable {
            ByteBuffer buff = invocation.getArgument(0);
            byte[] bytes = written.toByteArray();
            buff.put(bytes);
            return bytes.length;
        }
    }).when(inChannel).read(any(ByteBuffer.class));

    Socket outSocket = mock(Socket.class);
    SocketChannel outChannel = mock(SocketChannel.class);
    when(outChannel.socket()).thenReturn(outSocket);
    TcpNioConnection outboundConnection = new TcpNioConnection(outChannel, true, false, nullPublisher, null);
    doAnswer(new Answer<Object>() {

        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            ByteBuffer buff = invocation.getArgument(0);
            byte[] bytes = new byte[buff.limit()];
            buff.get(bytes);
            written.write(bytes);
            return null;
        }
    }).when(outChannel).write(any(ByteBuffer.class));

    MapMessageConverter outConverter = new MapMessageConverter();
    outConverter.setHeaderNames("bar");
    MessageConvertingTcpMessageMapper outMapper = new MessageConvertingTcpMessageMapper(outConverter);
    outboundConnection.setMapper(outMapper);
    outboundConnection.setSerializer(new MapJsonSerializer());

    Message<String> message = MessageBuilder.withPayload("foo").setHeader("bar", "baz").build();
    outboundConnection.send(message);

    final AtomicReference<Message<?>> inboundMessage = new AtomicReference<Message<?>>();
    final CountDownLatch latch = new CountDownLatch(1);
    TcpListener listener = new TcpListener() {

        @Override
        public boolean onMessage(Message<?> message) {
            inboundMessage.set(message);
            latch.countDown();
            return false;
        }
    };
    inboundConnection.registerListener(listener);
    inboundConnection.readPacket();
    assertTrue(latch.await(10, TimeUnit.SECONDS));
    assertNotNull(inboundMessage.get());
    assertEquals("foo", inboundMessage.get().getPayload());
    assertEquals("baz", inboundMessage.get().getHeaders().get("bar"));
}

---