How do I dynamically generate file name based on XML message body in a Camel route at runtime

Issue

Background

I have a Camel route to route a message from an ActiveMQ queue to a file:

<route>
   <from uri="activemq:queue:DATA.OUT"/>
   <to uri="file:/opt/data/DATA.OUT"/>
</route>

There is a requirement to dynamically look up the value of two elements in an XML message and create a file name based on the value of those two elements. For example, the message might look like:

<?xml version='1.0' encoding='UTF-8'?>
<tst_msg>
    <product_header>
        <product_header_msg_id>
            <product_msg_id>9840</product_msg_id>
            <product_msg_name>Test Product</product_msg_name>
        </product_header_msg_id>
    </product_header>
     <packet_header>
         <packet_header_index>1</packet_header_index>
         <packet_header_msg_number>8491920</packet_header_msg_number>
         <packet_header_size>944</packet_header_size>
     </packet_header>
</tst_msg>

The resulting file name should be something like: tst-msg-file-8491920-9840-data.xml.