JRobin is a 100% pure Java replacement for Tobi's ubiquitous RRDTool. JRobin supports all standard operations on Round Robin Database (RRD) files: create, update, fetch, last, dump, restore, xport, and graph. JRobin's API is made for those who are familiar with RRDTool's concepts and logic, but prefer to work with pure Java. Providing RRDTool and JRobin with the same data would result in identical outputs.
