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Background documentationEnabling Logging for Applications Locate this document in the navigation structure

 

There are two main steps in enabling logging for your application:

  1. Identify a source code area (for example, a class Node) and represent it with a Location object:

    Location loc = Location.getLocation("<package>.Node");

  2. Input a trace message with specified severity:

    loc.entering(methodname);

    loc.debugT(methodname, message);

    loc.fatalT(methodname, message);

A very basic sample code shows these two steps:

Syntax Syntax

  1. package com.sap.fooPackage;
import com.sap.tc.logging.*;
public class Node {
   private static final Location loc =
      Location.getLocation("com.sap.fooPackage.Node");
   public void announce(Object o) {
      String method = "announce(java.lang.Object)";
      loc.entering(method);
      try {
         // do something...
         loc.debugT(method, "Connecting to …");
      } catch (Exception e) {
         loc.fatalT(
            method,
            "Error processing object {0}",
            new Object[] { o });
      }
      loc.exiting();
   }
}
End of the code.

The output is redirected to a ConsoleLog (terminal).

The output, formatted with TraceFormatter (default formatter for ConsoleLog), looks like this:

May 3, 2007 6:54:18 PM com.sap.fooPackage.Node.announce [main] Path: Entering method May 3, 2001 6:54:18 PM com.sap.fooPackage.Node.announce [main] Debug: Connecting to …. May 3, 2001 6:54:18 PM com.sap.fooPackage.Node.announce [main] Path: Exiting method
More Information

Appendix A: Severity Levels

Enable Output Messages