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

Introduction

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

Prototype

String HEADERS

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Document

Headers exchange.

Usage

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;/*w w w.  j  a v  a2  s  .  c om*/
    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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