[SOLVED] EMF Compare programatically for local history of uml file

EMF Compare programatically for local history of uml file

I am trying to compare a uml file with its local history. Is it possible to do it programatically?

Solution

Yes, but you will have to find the proper history revision to compare with yourself.

See org.eclipse.core.resources.IFile.getHistory(IProgressMonitor) for info on how to retrieve the local history of a given file. You will then need to load these revisions as EMF Resources for use by EMF Compare.

Something like the following should get you started:

String uri = "platform:/resource/project/path/to/file.ext";
IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(uri));
IFileState[] states = file.getHistory(new NullProgressMonitor());
if (states.length > 0) {
    IFileState lastFromHistory = states[0];
    ResourceSet set = new ResourceSetImpl();
    Resource res = set.createResource(URI.createURI(uri));
    res.load(lastFromHistory.getContents(), Collections.emptyMap());
}