Description Arthur Daussy 2017-09-22 04:11:11 EDT

When using ‘Save All’ command with both an ActivityExplorer editor and a Sirius Diagram editor opened may result in a parallel saves. This is mainly problematic when custom actions are made during save because in that case they happen twice. 
 When calling this action on an open Sirius Editor the method “SessionSaveable.doSave(IProgressMonitor,IShellProvider)” is called resulting in the creation of a “SaveSessionRunnable” which is scheduled as a background job. On the ActivityExplorer editor the method “SessionSaveable.doSave(IProgressMonitor)” is called and the save action is done in the current thread. It results in having 2 save operations in parallel.
The best fix I can think of it by aligning the save behavior of the ActivityExplorer editor to a Sirius representation editor. To do so, the activity explorer has to implements the ISaveableSource interface. It means that saves we will be done in a background job as in Sirius. Using this implementation Eclipse is able to detect that both editors are doing the same save operation and execute only one.