Examples with MessageHandler com.rabbitmq.stream.MessageHandler used on opensource projects

Example 1 with MessageHandler

use of com.rabbitmq.stream.MessageHandler in project rabbitmq-stream-java-client by rabbitmq.

the class SuperStreamUsage method consumerSimple.

void consumerSimple() {
    Environment environment = Environment.builder().build();
    // tag::consumer-simple[]
    Consumer consumer = environment.consumerBuilder().superStream(// <1>
    "invoices").messageHandler((context, message) -> {
    // message processing
    }).build();
    // ...
    // <2>
    consumer.close();
// end::consumer-simple[]
}

Example 2 with MessageHandler

use of com.rabbitmq.stream.MessageHandler in project spring-amqp by spring-projects.

the class StreamListenerContainerTests method testAdviceChain.

@Test
void testAdviceChain() throws Exception {
    Environment env = mock(Environment.class);
    ConsumerBuilder builder = mock(ConsumerBuilder.class);
    given(env.consumerBuilder()).willReturn(builder);
    AtomicReference<MessageHandler> handler = new AtomicReference<>();
    willAnswer(inv -> {
        handler.set(inv.getArgument(0));
        return null;
    }).given(builder).messageHandler(any());
    AtomicBoolean advised = new AtomicBoolean();
    MethodInterceptor advice = (inv) -> {
        advised.set(true);
        return inv.proceed();
    };
    StreamListenerContainer container = new StreamListenerContainer(env);
    container.setAdviceChain(advice);
    AtomicBoolean called = new AtomicBoolean();
    MessageListener ml = mock(MessageListener.class);
    willAnswer(inv -> {
        called.set(true);
        return null;
    }).given(ml).onMessage(any());
    container.setupMessageListener(ml);
    Message message = mock(Message.class);
    given(message.getBodyAsBinary()).willReturn("foo".getBytes());
    Context context = mock(Context.class);
    handler.get().handle(context, message);
    assertThat(advised.get()).isTrue();
    assertThat(called.get()).isTrue();
    advised.set(false);
    called.set(false);
    ChannelAwareMessageListener cal = mock(ChannelAwareMessageListener.class);
    willAnswer(inv -> {
        called.set(true);
        return null;
    }).given(cal).onMessage(any(), isNull());
    container.setupMessageListener(cal);
    handler.get().handle(context, message);
    assertThat(advised.get()).isTrue();
    assertThat(called.get()).isTrue();
    called.set(false);
    StreamMessageListener sml = mock(StreamMessageListener.class);
    willAnswer(inv -> {
        called.set(true);
        return null;
    }).given(sml).onStreamMessage(message, context);
    container.setupMessageListener(sml);
    handler.get().handle(context, message);
    assertThat(advised.get()).isTrue();
    assertThat(called.get()).isTrue();
}