How can maintain log file Please help Very Urgent.

Question

I am developping an application in PDK. From my application I need maintain a log file in the server side. Please help me how can I do this. If you do have links regarding this matter please pass it.

Answer 1

You might want to use the SAP Logging API. see
<a href="http://help.sap.com/saphelp_nw04s/helpdata/en/d2/5c830ca67fd842b2e87b0c341c64cd/frameset.htm">Logging and Tracing</a>
In NWDS include a reference to logging.jar (use variable SAP_LOGGING_LIB_HOME).
You can then write to the log in this way:
public class Xyz {
     private static final Location TRACE = Location.getLocation(Xyz.class);
     // It is not nice to set the severity in static code - only for demonstration purposes.
     // For production-ready code this should be done via a log-configuration.xml
     // to allow configuration of the severity at runtime.
          TRACE.setEffectiveSeverity(Severity.ALL);
     public void myMethod() {
          final String METHOD = "myMethod()";
          TRACE.entering(METHOD);
          TRACE.debugT("whatever");
          TRACE.exiting(METHOD);