WAS v8.5 > Reference > Administrator examples

Example: Using mediations to trace, monitor and log messages

The most straightforward use of a mediation is for tracing, monitoring or logging messages that pass through a destination or topics spaces. This type of mediation does not modify the message; it only extracts information from the message and saves or displays the information elsewhere.

For example, the following mediation handler displays the API message and correlation IDs for each message it is sent:

public boolean(MessageContext context)
{
  SIMessageContext   msgCtx  = (SIMessageContext)context;
  SIMediationSession session = msgCtx.getSession();
  SIMessage          msg     = msgCtx.getMessage();
  String             msgId   = msg.getApiMessageId();
  String             corrId  = msg.getCorrelationId();
  String             dest    = session.getDestinationName();

  System.out.println(msgId+" (correlation id="+corrid) is passing through "+dest+".");

  return true;}

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