Example usage for org.springframework.util Assert isInstanceOf

Introduction

In this page you can find the example usage for org.springframework.util Assert isInstanceOf.

Prototype

public static void isInstanceOf(Class<?> type, @Nullable Object obj)

Source Link

Document

Assert that the provided object is an instance of the provided class.

Usage

From source file:org.springframework.xd.dirt.integration.bus.MessageBusSupport.java

private int invokePartitionSelector(String partitionSelectorClassName, Object key, int partitionCount) {
    if (this.applicationContext.containsBean(partitionSelectorClassName)) {
        return this.applicationContext.getBean(partitionSelectorClassName, PartitionSelectorStrategy.class)
                .selectPartition(key, partitionCount);
    }/* w ww .  j  a v a2 s  . c o  m*/
    Class<?> clazz;
    try {
        clazz = ClassUtils.forName(partitionSelectorClassName, this.applicationContext.getClassLoader());
    } catch (Exception e) {
        logger.error("Failed to load partition selector", e);
        throw new MessageBusException("Failed to load partition selector: " + partitionSelectorClassName, e);
    }
    try {
        Object extractor = clazz.newInstance();
        Assert.isInstanceOf(PartitionKeyExtractorStrategy.class, extractor);
        this.applicationContext.getBeanFactory().registerSingleton(partitionSelectorClassName, extractor);
        this.applicationContext.getBeanFactory().initializeBean(extractor, partitionSelectorClassName);
        return ((PartitionSelectorStrategy) extractor).selectPartition(key, partitionCount);
    } catch (Exception e) {
        logger.error("Failed to instantiate partition selector", e);
        throw new MessageBusException("Failed to instantiate partition selector: " + partitionSelectorClassName,
                e);
    }
}

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

@Override
public void bindProducer(final String name, MessageChannel moduleOutputChannel, Properties properties) {
    Assert.isInstanceOf(SubscribableChannel.class, moduleOutputChannel);
    RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
    if (name.startsWith(P2P_NAMED_CHANNEL_TYPE_PREFIX)) {
        validateProducerProperties(name, properties, SUPPORTED_NAMED_PRODUCER_PROPERTIES);
    } else {/*  w w  w.  j  a  v  a 2 s .c  o m*/
        validateProducerProperties(name, properties, SUPPORTED_PRODUCER_PROPERTIES);
    }
    if (!bindNewProducerDirectlyIfPossible(name, (SubscribableChannel) moduleOutputChannel, accessor)) {
        if (logger.isInfoEnabled()) {
            logger.info("declaring queue for outbound: " + name);
        }
        AmqpOutboundEndpoint queue = this.buildOutboundEndpoint(name, accessor,
                determineRabbitTemplate(accessor));
        doRegisterProducer(name, moduleOutputChannel, queue, accessor);
    }
}

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

private void doRegisterProducer(final String name, MessageChannel moduleOutputChannel,
        AmqpOutboundEndpoint delegate, String replyTo, RabbitPropertiesAccessor properties) {
    Assert.isInstanceOf(SubscribableChannel.class, moduleOutputChannel);
    MessageHandler handler = new SendingHandler(delegate, replyTo, properties);
    EventDrivenConsumer consumer = new EventDrivenConsumer((SubscribableChannel) moduleOutputChannel, handler);
    consumer.setBeanFactory(getBeanFactory());
    consumer.setBeanName("outbound." + name);
    consumer.afterPropertiesSet();/*www  .j  a  v  a2 s  . com*/
    Binding producerBinding = Binding.forProducer(name, moduleOutputChannel, consumer, properties);
    addBinding(producerBinding);
    producerBinding.start();
}

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

@Override
public void bindRequestor(String name, MessageChannel requests, MessageChannel replies, Properties properties) {
    if (logger.isInfoEnabled()) {
        logger.info("binding requestor: " + name);
    }/*  ww w.j a  v a 2  s. c  o  m*/
    validateProducerProperties(name, properties, SUPPORTED_REQUESTING_PRODUCER_PROPERTIES);
    Assert.isInstanceOf(SubscribableChannel.class, requests);
    RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
    String queueName = name + ".requests";
    AmqpOutboundEndpoint queue = this.buildOutboundEndpoint(queueName, accessor, this.rabbitTemplate);
    queue.setBeanFactory(this.getBeanFactory());

    String replyQueueName = accessor.getPrefix(this.defaultPrefix) + name + ".replies."
            + this.getIdGenerator().generateId();
    this.doRegisterProducer(name, requests, queue, replyQueueName, accessor);
    Queue replyQueue = new Queue(replyQueueName, false, false, true); // auto-delete
    declareQueueIfNotPresent(replyQueue);
    // register with context so it will be redeclared after a connection failure
    this.autoDeclareContext.getBeanFactory().registerSingleton(replyQueueName, replyQueue);
    this.doRegisterConsumer(name, replies, replyQueue, accessor, false);
}