Example usage for org.springframework.amqp.core TopicExchange TopicExchange

Introduction

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

Prototype

public TopicExchange(String name, boolean durable, boolean autoDelete, Map<String, Object> arguments) 

Source Link

Usage

From source file:com.jbrisbin.groovy.mqdsl.RabbitMQBuilder.java

@Override
protected Object createNode(Object o, final Map params) {
    if (log.isDebugEnabled()) {
        log.debug(String.format("createNode(Object o, Map params): %s, %s", o, params));
    }//ww  w. j  a v a 2s. c o  m
    String node = o.toString();
    if (ON.equals(node)) {
        // Event handlers
        for (Map.Entry<String, Closure> entry : ((Map<String, Closure>) params).entrySet()) {
            String eventName = entry.getKey();
            List<Closure> handlers;
            if (eventHandlers.containsKey(eventName)) {
                handlers = eventHandlers.get(eventName);
            } else {
                handlers = new ArrayList<Closure>();
                eventHandlers.put(eventName, handlers);
            }
            if (entry.getValue() instanceof List) {
                for (Closure cl : (List<Closure>) entry.getValue()) {
                    handlers.add(cl);
                }
            } else if (entry.getValue() instanceof Closure) {
                Closure cl = entry.getValue();
                cl.setProperty(NAME, eventName);
                handlers.add(cl);
            }
        }
        return null;
    } else if (EXCHANGE.equals(node)) {
        boolean durable = params.containsKey(DURABLE) ? (Boolean) params.get(DURABLE) : false;
        boolean autoDelete = params.containsKey(AUTO_DELETE) ? (Boolean) params.get(AUTO_DELETE) : false;
        Map arguments = params.containsKey(ARGUMENTS) ? (Map) params.get(ARGUMENTS) : null;
        currentRoutingKey = null;

        Exchange exchange = null;
        String name = null;
        if (params.containsKey(NAME)) {
            name = params.get(NAME).toString();
        }
        if (params.containsKey(TYPE)) {
            String type = params.containsKey(TYPE) ? params.get(TYPE).toString() : DIRECT;
            if (DIRECT.equals(type)) {
                exchange = new DirectExchange(name, durable, autoDelete, arguments);
            } else if (TOPIC.equals(type)) {
                exchange = new TopicExchange(name, durable, autoDelete, arguments);
            } else if (FANOUT.equals(type)) {
                exchange = new FanoutExchange(name, durable, autoDelete, arguments);
            } else if (HEADERS.equals(type)) {
                exchange = new HeadersExchange(name, durable, autoDelete, arguments);
            } else {
                exchange = new CustomExchange(name, type, durable, autoDelete, arguments);
            }
            currentExchange = exchange;

        } else {
            currentExchange = new DirectExchange(name);
        }
        try {
            rabbitAdmin.declareExchange(currentExchange);
        } catch (Exception e) {
            log.error(e.getMessage(), e);
            dispatchError(e);
        }

        return exchange;
    } else if (QUEUE.equals(node)) {
        boolean durable = params.containsKey(DURABLE) ? (Boolean) params.get(DURABLE) : false;
        boolean autoDelete = params.containsKey(AUTO_DELETE) ? (Boolean) params.get(AUTO_DELETE) : true;
        String routingKey = params.containsKey(ROUTING_KEY) ? params.get(ROUTING_KEY).toString() : null;
        if (null != routingKey) {
            currentRoutingKey = routingKey;
        }
        boolean exclusive = params.containsKey(EXCLUSIVE) ? (Boolean) params.get(EXCLUSIVE) : false;
        Map arguments = params.containsKey(ARGUMENTS) ? (Map) params.get(ARGUMENTS) : null;

        Queue q = null;
        String name;
        if (params.containsKey(NAME)) {
            try {
                if (null == params.get(NAME)) {
                    name = null;
                } else {
                    name = params.get(NAME).toString();
                }

                if (name == null) {
                    q = rabbitAdmin.declareQueue();
                } else {
                    q = new Queue(name, durable, exclusive, autoDelete);
                    rabbitAdmin.declareQueue(q);
                }
                currentQueue = q;

                if (null != currentExchange) {
                    Binding binding = null;
                    if (currentExchange instanceof FanoutExchange) {
                        binding = BindingBuilder.bind(q).to((FanoutExchange) currentExchange);
                    } else if (currentExchange instanceof DirectExchange) {
                        binding = BindingBuilder.bind(q).to((DirectExchange) currentExchange).with(routingKey);
                    } else if (currentExchange instanceof HeadersExchange) {
                        binding = BindingBuilder.bind(q).to((HeadersExchange) currentExchange)
                                .whereAll(arguments).match();
                    } else if (currentExchange instanceof TopicExchange) {
                        binding = BindingBuilder.bind(q).to((TopicExchange) currentExchange).with(routingKey);
                    } else if (currentExchange instanceof CustomExchange) {
                        binding = BindingBuilder.bind(q).to(currentExchange).with(routingKey).noargs();
                    }

                    if (null != binding) {
                        rabbitAdmin.declareBinding(binding);
                    }
                }
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                dispatchError(e);
            }
        }
        return q;
    }

    return null;
}

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

private Exchange topicExchange(org.springframework.amqp.rabbit.annotation.Exchange bindingExchange,
        String exchangeName) {// www .  j  a v a  2  s . c o  m
    return new TopicExchange(exchangeName, resolveExpressionAsBoolean(bindingExchange.durable()),
            resolveExpressionAsBoolean(bindingExchange.autoDelete()),
            resolveArguments(bindingExchange.arguments()));
}

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