Messaging log data includes data for all message-based application
        data routed by the dispatcher.
- Time – the
                        time and date stamp for the log entry.
 
-  Application ID – the unique identifier assigned  to the registered application. Values may include a number, blank, or HWC, depending on the client type.
 
-  Application Connection  ID – the unique identifier for  a user application connection.
 
-  User ID – the ID of the user associated with the application ID. The user
                    under the domain logs should be in the format
                    "username@securityConfiguration".
                
 
- Phase – as an aid in evaluating network performance, as part of overall
                application performance, select a phase to measure time of these events:
- FBI – (first byte in) the time that the first byte is read
                            from the request.
 - LBI – (last byte in) the time that the last byte is read from
                            the request.
 - FBO – (first byte out) the time that the first byte is written
                            to the response.
 - LBO – (last byte out) the time that the last byte is written
                            to the response.
 
 
- Source - the source of the log if its from the server or
                    client.
 
- Request URL - the Gateway URL.
 
- Response Code – the response status code for the
                        invocation.
 
- Log Level – indicates the log level, if any, set on the client that
                        controls what and how much should be logged.
 
- Thread ID – the identifier for the thread used to process the
                        request.
 
- Node ID – the server node on which the request is received.
 
- Transaction ID – a unique ID that represents a
                        transaction (one cycle of request-response) performed by the client or
                        application.
 
- Root Context ID – a unique ID that represents a
                        client/server session. A session can be thought of as a block that includes
                        multiple requests from the client to the server. 
 
- Request Header Fields - the HTTP request header
                        field contained in the application. For example, used by REST API-based
                        application to create an application connection.
 
- Response Header Fields - the HTTP response header
                        field communicated to the device from the server.