Bug 490983

Description Pierre-Charles David 2016-04-04 04:13:38 EDT

+++ This bug was initially created as a clone of Bug #490908 +++

I use a model with 5 resources that have many inter-resource links.
One of these resources has many roots (4300).
Loading my session takes 3 minutes, whereas it takes 10 to 15 seconds to load the resources with the reflective ecore editor.

My first analysis indicates that the culprit seems to be ResourceQuery.isRepresentationsResource():
Its implementation goes over each root of the resource to check if it's a DAnalysis. This wouldn't be a problem if it were done only once per resource, but the result isn't cached and ResourceQuery.isRepresentationsResource() is called apparently each time there is a cross-resource link (by the cross-referencer installation and LocalResourceCollector.addInterResourceResourceReference(...))

I think Sirius should find a way to cache the information of whether or not a resource is a representation resource instead of recomputing it each time addInterResourceResourceReference is called. Or maybe addInterResourceResourceReference should do nothing if a reference between the same resources is already known?