Valuereporter-Agent

This agent will monitor all calls to public methods. When a method is called, start-time and end-time will be forwarded to the Valuereporter service.

Installation

Start your appserver/program with an additional command -javaagent:=

Example:

java -javaagent:../valuereporter-agent/valuereporter-agent-jar-with-dependencies.jar= \
base.package:com.example,valuereporter.host:localhost,valuereporter.port:4901,prefix:myService \
 -jar <your jar file>

Example Tomcat:

In catalina.bat, add to top of the file.

SET JAVA_OPTS=%JAVA_OPTS% -javaagent:../valuereporter-agent/valuereporter-agent-jar-with-dependencies.jar= \
base.package:com.example,valuereporter.host:localhost,valuereporter.port:4901,prefix:myService \

Configuration

• base.package - The package you want to scan. Example: com.example
• valuereporter.host - Where ValueReporter is running. (optional) Example: localhost
• valuereporter.port - Port of ValueReporter (optional) Example: 8080
• prefix - unique identifier for this service, and node. Used to identify the input from multiple services and nodes, in Valuereporter

Future improvements

• When multiple methods has the same name, and different parameters, they will now be reported as one method. For the time beeing, this is not a crucial factor, thoug. When the GUI of Valuereporter are able show these variations with the same method name, in a propper way. Then we can start reporting on individual variations from the same method- name.

• Time-based reporting. Ensure that data are sent from Valuereporter-agent at given intervals. Current implementation will, when activity on the monitored application is low, hold the data for a long period of time.