Example usage for javax.jms ConnectionMetaData getJMSXPropertyNames

Introduction

In this page you can find the example usage for javax.jms ConnectionMetaData getJMSXPropertyNames.

Prototype

Enumeration getJMSXPropertyNames() throws JMSException;

Source Link

Document

Gets an enumeration of the JMSX property names.

Usage

From source file:org.mule.transport.jms.redelivery.AutoDiscoveryRedeliveryHandlerFactory.java

/**
 * Create an instance using the discovery mechanism.
 *
 * @return an implementation based on the results of discovery
 *//*w ww  .jav a 2 s .  c  o m*/
protected RedeliveryHandler createInstance() {
    RedeliveryHandler newInstance;
    try {
        ConnectionMetaData metaData = connector.getConnection().getMetaData();
        boolean supportsDeliveryCount = false;
        final Enumeration propNames = metaData.getJMSXPropertyNames();
        while (propNames.hasMoreElements()) {
            String p = (String) propNames.nextElement();
            if (JmsConstants.JMS_X_DELIVERY_COUNT.equals(p)) {
                supportsDeliveryCount = true;
                break;
            }
        }

        newInstance = (supportsDeliveryCount) ? new JmsXRedeliveryHandler() : new CountingRedeliveryHandler();
    } catch (JMSException e) {
        // fallback to defaults
        newInstance = new CountingRedeliveryHandler();
    }

    if (logger.isDebugEnabled()) {
        logger.debug("Using " + newInstance.getClass().getName());
    }

    return newInstance;
}

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