Example usage for org.springframework.amqp.core ExchangeTypes TOPIC

Introduction

In this page you can find the example usage for org.springframework.amqp.core ExchangeTypes TOPIC.

Prototype

String TOPIC

To view the source code for org.springframework.amqp.core ExchangeTypes TOPIC.

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Document

Topic exchange.

Usage

From source file:com.github.larsq.spring.embeddedamqp.SimpleAmqpMessageContainer.java

void route(Address address, Message message) throws IOException {
    Preconditions.checkNotNull(address, "Address is not specified");

    LOG.debug("route message {} to address {}", message.getEnvelope(), address);

    /**/*from  www  .  j  a  v  a  2 s .  c  o  m*/
     * When address type is TOPIC, these
     */
    if (Objects.equals(address.getExchangeType(), ExchangeTypes.TOPIC)) {
        topicExchangeRouter.route(null, address.getRoutingKey(), message);
        return;
    }

    ExchangeWrapper exchangeWrapper = exchange(address.getExchangeName())
            .orElseThrow(Exception.exchangeNotFound(address.getExchangeName()));

    exchangeWrapper.counter.incrementAndGet();

    exchangeWrapper.router.route(exchangeWrapper, address.getRoutingKey(), message);
}

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From source file:com.github.larsq.spring.embeddedamqp.SimpleAmqpMessageContainer.java

protected Address defineAddress(String exchangeName, String routingKey) {
    if (exchangeName != null && routingKey != null) {
        return new Address(ExchangeTypes.DIRECT, exchangeName, routingKey);
    }// w  w  w.  ja  va  2  s .  c  om

    if (exchangeName == null) {
        return new Address(ExchangeTypes.TOPIC, null, routingKey);
    }

    if (routingKey == null) {
        return new Address(ExchangeTypes.FANOUT, exchangeName, null);
    }

    //both are null
    throw new NullPointerException("both exchange and routing key cannot be null");
}

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From source file:org.springframework.amqp.rabbit.annotation.RabbitListenerAnnotationBeanPostProcessor.java

private void declareExchangeAndBinding(QueueBinding binding, String queueName) {
    org.springframework.amqp.rabbit.annotation.Exchange bindingExchange = binding.exchange();
    String exchangeName = resolveExpressionAsString(bindingExchange.value(), "@Exchange.exchange");
    Assert.isTrue(StringUtils.hasText(exchangeName), "Exchange name required; binding queue " + queueName);
    String exchangeType = resolveExpressionAsString(bindingExchange.type(), "@Exchange.type");
    String routingKey = resolveExpressionAsString(binding.key(), "@QueueBinding.key");
    Exchange exchange;/*from ww w.  j  a  v  a  2  s .c  o  m*/
    Binding actualBinding;
    if (exchangeType.equals(ExchangeTypes.DIRECT)) {
        exchange = directExchange(bindingExchange, exchangeName);
        actualBinding = new Binding(queueName, DestinationType.QUEUE, exchangeName, routingKey,
                resolveArguments(binding.arguments()));
    } else if (exchangeType.equals(ExchangeTypes.FANOUT)) {
        exchange = fanoutExchange(bindingExchange, exchangeName);
        actualBinding = new Binding(queueName, DestinationType.QUEUE, exchangeName, "",
                resolveArguments(binding.arguments()));
    } else if (exchangeType.equals(ExchangeTypes.TOPIC)) {
        exchange = topicExchange(bindingExchange, exchangeName);
        actualBinding = new Binding(queueName, DestinationType.QUEUE, exchangeName, routingKey,
                resolveArguments(binding.arguments()));
    } else if (exchangeType.equals(ExchangeTypes.HEADERS)) {
        exchange = headersExchange(bindingExchange, exchangeName);
        actualBinding = new Binding(queueName, DestinationType.QUEUE, exchangeName, routingKey,
                resolveArguments(binding.arguments()));
    } else {
        throw new BeanInitializationException("Unexpected exchange type: " + exchangeType);
    }
    AbstractExchange abstractExchange = (AbstractExchange) exchange;
    abstractExchange.setInternal(resolveExpressionAsBoolean(bindingExchange.internal()));
    abstractExchange.setIgnoreDeclarationExceptions(
            resolveExpressionAsBoolean(bindingExchange.ignoreDeclarationExceptions()));
    ((AbstractDeclarable) actualBinding)
            .setIgnoreDeclarationExceptions(resolveExpressionAsBoolean(binding.ignoreDeclarationExceptions()));
    ((ConfigurableBeanFactory) this.beanFactory).registerSingleton(exchangeName + ++this.increment, exchange);
    ((ConfigurableBeanFactory) this.beanFactory)
            .registerSingleton(exchangeName + "." + queueName + ++this.increment, actualBinding);
}

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