This section describes an overview and implementation methods of the functionality of acquiring root application information of the trace based performance analysis.

root application information is the information that is acquired by the redirector or the EJB client among the information acquired by trace based performance analysis functionality. You can implement the functionality of acquiring the character string expression of the root application information in the J2EE application and batch application using API. When implemented, it would be helpful in troubleshooting when the trouble occurs since the functionality of acquiring the character string expression of the root application information can be compared with the trace based performance analysis file at the optional timing when the acquired character string expression is recorded in log file.

Use CprfTrace class for implementing the functionality of acquiring root application information of trace based performance analysis. To use CprfTrace class, specify the following path in the class path and compile.

• In Windows
  Cosminexus-installation-directory\CC\lib\ejbserver.jar
  
• In Unix
  /opt/Cosminexus/CC/lib/ejbserver.jar
  

For details on the CprfTrace class, see 9.2 CprfTrace Class in the uCosminexus Application Server API Reference Guide.

For details on the investigation of using the root application information, see the subsection 7.7.7 Investigating the Log Using the Root Application Information.