The build pass/fail metrics are useful, but its nice to have metrics for the quality of the build as well. This is how we, Enthought, created a metrics chart from junit results in the CC build logs. We have a slightly modified xslt, so your milage may vary with the xpath, but this should provide a good start. We've also implemented coverage metrics, but its implemented in exactly the same way.

We created 2 java classes:

The BuildResult class reads/writes XML files containing build result summaries. We use this class for a couple of different pages, so it containts unit test results, coverage results, build labels, build date and error message. You can trim out whatever you don't need.

The UnittestDatasetProducer class takes a list of BuildResults and turns it into a TimeSeriesCollection containing 2 series, the # of tests ran & the number of tests passed. This class inherits from de.laures.cewolf.DatasetProducer and is responsible for handing off the data to be charted.

We then created a jsp to display the chart. Most of the logic is contained in the jsp, and should probably be moved into a separate Java class. There is an assumption that the jsp has a parameter "project" which provides the name of the project and more importantly, the directory in which to read the cruise control logs from.

All 3 files are attached. I hope someone finds them useful.