private FeatureModelWrapper getFeatureModelWrapper(IProject project) {
FeatureModelWrapper w = wrappers.get(project);
if (w == null) {
String uri = getFeatureModelUri(project);
try {
w = FeatureAccessFactory.getFeatureModelWrapper(uri);
wrappers.put(project, w);
return w;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return w;
}