Example usage for org.springframework.amqp.core Exchange getName

Introduction

In this page you can find the example usage for org.springframework.amqp.core Exchange getName.

Prototype

String getName();

Source Link

Document

The name of the exchange.

Usage

From source file:org.springframework.amqp.rabbit.core.RabbitAdmin.java

/**
 * Declares all the exchanges, queues and bindings in the enclosing application context, if any. It should be safe
 * (but unnecessary) to call this method more than once.
 *//*from   w w w. j a  v  a 2  s .c om*/
public void initialize() {

    if (this.applicationContext == null) {
        if (this.logger.isDebugEnabled()) {
            this.logger.debug(
                    "no ApplicationContext has been set, cannot auto-declare Exchanges, Queues, and Bindings");
        }
        return;
    }

    logger.debug("Initializing declarations");
    final Collection<Exchange> exchanges = applicationContext.getBeansOfType(Exchange.class).values();
    final Collection<Queue> queues = applicationContext.getBeansOfType(Queue.class).values();
    final Collection<Binding> bindings = applicationContext.getBeansOfType(Binding.class).values();

    for (Exchange exchange : exchanges) {
        if (!exchange.isDurable()) {
            logger.warn("Auto-declaring a non-durable Exchange (" + exchange.getName()
                    + "). It will be deleted by the broker if it shuts down, and can be redeclared by closing and reopening the connection.");
        }
        if (exchange.isAutoDelete()) {
            logger.warn("Auto-declaring an auto-delete Exchange (" + exchange.getName()
                    + "). It will be deleted by the broker if not in use (if all bindings are deleted), but will only be redeclared if the connection is closed and reopened.");
        }
    }

    for (Queue queue : queues) {
        if (!queue.isDurable()) {
            logger.warn("Auto-declaring a non-durable Queue (" + queue.getName()
                    + "). It will be redeclared if the broker stops and is restarted while the connection factory is alive, but all messages will be lost.");
        }
        if (queue.isAutoDelete()) {
            logger.warn("Auto-declaring an auto-delete Queue (" + queue.getName()
                    + "). It will be deleted by the broker if not in use, and all messages will be lost.  Redeclared when the connection is closed and reopened.");
        }
        if (queue.isExclusive()) {
            logger.warn("Auto-declaring an exclusive Queue (" + queue.getName()
                    + "). It cannot be accessed by consumers on another connection, and will be redeclared if the connection is reopened.");
        }
    }

    rabbitTemplate.execute(new ChannelCallback<Object>() {
        public Object doInRabbit(Channel channel) throws Exception {
            declareExchanges(channel, exchanges.toArray(new Exchange[exchanges.size()]));
            declareQueues(channel, queues.toArray(new Queue[queues.size()]));
            declareBindings(channel, bindings.toArray(new Binding[bindings.size()]));
            return null;
        }
    });
    logger.debug("Declarations finished");

}

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From source file:org.springframework.amqp.rabbit.core.RabbitAdmin.java

private void declareExchanges(final Channel channel, final Exchange... exchanges) throws IOException {
    for (final Exchange exchange : exchanges) {
        if (logger.isDebugEnabled()) {
            logger.debug("declaring Exchange '" + exchange.getName() + "'");
        }/*from w  w w . j  av a  2  s .  co m*/

        if (!isDeclaringDefaultExchange(exchange)) {
            channel.exchangeDeclare(exchange.getName(), exchange.getType(), exchange.isDurable(),
                    exchange.isAutoDelete(), exchange.getArguments());
        }
    }
}

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From source file:org.springframework.amqp.rabbit.core.RabbitAdmin.java

private boolean isDeclaringDefaultExchange(Exchange exchange) {
    if (isDefaultExchange(exchange.getName())) {
        if (logger.isDebugEnabled()) {
            logger.debug("Default exchange is pre-declared by server.");
        }//from   w ww. ja  v a2 s . c om
        return true;
    }
    return false;
}

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From source file:org.springframework.cloud.stream.binder.rabbit.provisioning.RabbitExchangeQueueProvisioner.java

private void declareExchange(final String rootName, final Exchange exchange) {
    try {/*  ww  w .  j a  va  2  s  . c o m*/
        this.rabbitAdmin.declareExchange(exchange);
    } catch (AmqpConnectException e) {
        if (this.logger.isDebugEnabled()) {
            this.logger.debug(
                    "Declaration of exchange: " + exchange.getName() + " deferred - connection not available");
        }
    }
    addToAutoDeclareContext(rootName + ".exchange", exchange);
}

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From source file:org.springframework.xd.dirt.integration.rabbit.RabbitMessageBus.java

/**
 * Try passive declaration first, in case the user has pre-configured the exchange with
 * incompatible arguments.//from   w  w w . jav a  2s.  c o  m
 * @param exchange
 */
private void declareExchangeIfNotPresent(final Exchange exchange) {
    this.rabbitTemplate.execute(new ChannelCallback<Void>() {

        @Override
        public Void doInRabbit(Channel channel) throws Exception {
            try {
                channel.exchangeDeclarePassive(exchange.getName());
            } catch (IOException e) {
                RabbitMessageBus.this.rabbitAdmin.declareExchange(exchange);
            }
            return null;
        }

    });
}

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