1 files changed, 41 insertions, 0 deletions
diff --git a/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.tooling.runtime/src/org/eclipse/papyrus/infra/gmfdiag/tooling/runtime/parsers/OclTrackerWrapper.java b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.tooling.runtime/src/org/eclipse/papyrus/infra/gmfdiag/tooling/runtime/parsers/OclTrackerWrapper.java
new file mode 100755
index 00000000000..695bd36ea48
--- /dev/null
+++ b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.tooling.runtime/src/org/eclipse/papyrus/infra/gmfdiag/tooling/runtime/parsers/OclTrackerWrapper.java
@@ -0,0 +1,41 @@
+package  org.eclipse.papyrus.infra.gmfdiag.tooling.runtime.parsers;
+
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.emf.common.notify.Notification;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.papyrus.infra.gmfdiag.tooling.runtime.ocl.tracker.OclTracker;
+import org.eclipse.papyrus.infra.gmfdiag.tooling.runtime.ocl.tracker.OclTrackerFactory;
+
+abstract class OclTrackerWrapper {
+
+	private final OclTrackerFactory myOclTrackerFactory;
+
+	private OclTracker myOclTracker;
+
+	public OclTrackerWrapper(OclTrackerFactory oclTrackerFactory) {
+		myOclTrackerFactory = oclTrackerFactory;
+	}
+
+	public OclTracker getOclTracker() {
+		if (myOclTracker == null) {
+			myOclTracker = myOclTrackerFactory.createOclTracker(getExpressionBody(), true);
+		}
+		return myOclTracker;
+	}
+
+	public String getUpdatedString(IAdaptable element, int flags) {
+		EObject target = (EObject) element.getAdapter(EObject.class);
+		getOclTracker().initialize(target);
+		return String.valueOf(getOclTracker().getValue());
+	}
+
+	public boolean isAffectingEvent(Object event, int flags) {
+		if (event instanceof Notification) {
+			Notification notification = (Notification) event;
+			return getOclTracker().handleNotification(notification);
+		}
+		return false;
+	}
+
+	protected abstract String getExpressionBody();
+}