com.dell.cpsd.common.rabbitmq.message.MessagePropertiesHelper Maven / Gradle / Ivy

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/**
 * Copyright © 2017 Dell Inc. or its subsidiaries.  All Rights Reserved.
 * Dell EMC Confidential/Proprietary Information
 */

package com.dell.cpsd.common.rabbitmq.message;

import org.springframework.amqp.core.MessageProperties;

import java.io.UnsupportedEncodingException;
import java.util.Date;

/**
 * This helper class for message properties.
 * 
 * Copyright © 2017 Dell Inc. or its subsidiaries.  All Rights Reserved.
 * Dell EMC Confidential/Proprietary Information
 * 
 *
 * @since 1.0
 */
public class MessagePropertiesHelper
{
    /**
     * This makes a MessageProperties with the specified properties.
     *
     * @param timestamp     The timestamp.
     * @param correlationId The correlation identifier.
     * @param replyTo       The reply to destination.
     * @since 1.0
     */
    public static MessageProperties makeMessageProperties(final Date timestamp, final String correlationId, final String replyTo)
    {
        final MessageProperties messageProperties = new MessageProperties();

        messageProperties.setTimestamp(timestamp);
        messageProperties.setCorrelationIdString(correlationId);

        if (correlationId != null)
        {
            try
            {
                messageProperties.setCorrelationId(correlationId.getBytes("UTF-8"));

            }
            catch (UnsupportedEncodingException exception)
            {
            }
        }

        messageProperties.setReplyTo(replyTo);

        return messageProperties;
    }

    /**
     * This returns the correalation identifier in the message properties, or
     * null.
     *
     * @param messageProperties The message properties.
     * @return The correlation identifier, or null.
     * @since 1.0
     */
    public static String getCorrelationId(final MessageProperties messageProperties)
    {
        if (messageProperties == null)
        {
            return null;
        }

        String correlationId = messageProperties.getCorrelationIdString();

        if ((correlationId == null) || (correlationId.isEmpty()))
        {
            byte[] array = messageProperties.getCorrelationId();

            if (array != null)
            {
                try
                {
                    correlationId = new String(array, "UTF-8");
                }
                catch (UnsupportedEncodingException exception)
                {
                }
            }
        }

        return correlationId;
    }
}