Example usage for com.rabbitmq.client BasicProperties getHeaders

Introduction

In this page you can find the example usage for com.rabbitmq.client BasicProperties getHeaders.

Prototype

public abstract Map<String, Object> getHeaders();

Source Link

Document

Retrieve the table in the headers field as a map of fields names and values.

Usage

From source file:org.zenoss.amqp.impl.BasicPropertiesWrapper.java

License:Open Source License

BasicPropertiesWrapper(BasicProperties basicProperties) {
    this.properties = basicProperties;
    /*//  w w  w.  j a  v a 2  s.c om
     * We want to convert header values of type LongString (RabbitMQ
     * specific) to String.
     */
    if (basicProperties.getHeaders() != null && !basicProperties.getHeaders().isEmpty()) {
        headers = new HashMap<String, Object>();
        for (Map.Entry<String, Object> entry : basicProperties.getHeaders().entrySet()) {
            String key = entry.getKey();
            Object val = entry.getValue();
            if (val instanceof LongString) {
                try {
                    headers.put(key, new String(((LongString) val).getBytes(), "UTF-8"));
                } catch (UnsupportedEncodingException e) {
                    throw new RuntimeException("UTF-8 encoding required", e);
                }
            } else {
                headers.put(key, val);
            }
        }
    } else {
        headers = Collections.emptyMap();
    }
}

From source file:pl.nask.hsn2.bus.rabbitmq.endpoint.RbtDefaultConsumer.java

License:Open Source License

@Override
public final void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
        throws IOException {

    super.handleDelivery(consumerTag, envelope, properties, body);

    Message message = new Message(properties.getType(), body, properties.getCorrelationId(),
            new RbtDestination(RABBITMQ_DEFAULT_EXCHANGE_NAME, properties.getReplyTo()));

    message.setDestination(new RbtDestination(RABBITMQ_DEFAULT_EXCHANGE_NAME, envelope.getRoutingKey()));

    message.setContentType(properties.getContentType());

    // take retries count
    try {// w  ww.j  av a  2s .co m
        if (properties.getHeaders() != null) {
            Object xretriesObject = properties.getHeaders().get("x-retries");
            if (xretriesObject != null) {
                int xretries = 0;
                if (xretriesObject instanceof Integer) {
                    xretries = (Integer) xretriesObject;
                } else if (xretriesObject instanceof String) {
                    xretries = Integer.parseInt((String) xretriesObject);
                } else {
                    LOGGER.error("Unknown object type of x-retries property.");
                }
                message.setRetries(xretries);
            }
        }
    } catch (NumberFormatException ex) {
        // not important
    }

    try {
        responseHandler.handleMessage(message);
        if (!autoack) {
            getChannel().basicAck(envelope.getDeliveryTag(), false);
        }
    } catch (ConsumeHandlerException ex) {
        if (!autoack) {
            getChannel().basicReject(envelope.getDeliveryTag(), true);
        }
        // nothing can do :(
    } catch (Throwable t) {
        if (!autoack) {
            getChannel().basicReject(envelope.getDeliveryTag(), true);
        }
        LOGGER.error("Error handling message.", t);
    }
}