How can i monitor the activities of the user

I'm developing a project "Information security system". in which i want to provide a feature of "session monitoring". i simply want to create a table, in which each and every activities(which command is executed, which file opened, modified, login time, logout time, and every actions) of users are listed. is there any开发者_JAVA技巧 API is available to implement this feature..???

Your question is a little bit vague, but it sounds like a job for Aspect oriented programming