More explicit information in case of model internal coherence problems

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/storage/eclipse/ModelContext.java

@@ -69,7 +69,7 @@ import org.fortiss.tooling.kernel.utils.UniqueIDUtils;
  * @author hummel
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating YELLOW Hash: CC9C1C2E6EE24D1B861861D4BCA95D75
+ * @ConQAT.Rating YELLOW Hash: 908BAA6397ED5750B4FAE01669F9069D
  */
 class ModelContext implements ITopLevelElement, CommandStackListener {
 
@@ -279,7 +279,7 @@ class ModelContext implements ITopLevelElement, CommandStackListener {
 		// Perform diagnostics
 		Diagnostic validate = Diagnostician.INSTANCE.validate(getRootModelElement());
 		if(validate.getSeverity() != Diagnostic.OK) {
-			warning(ToolingKernelActivator.getDefault(), validate.getMessage());
+			warning(ToolingKernelActivator.getDefault(), getFullMessage(validate));
 		}
 		monitor.worked(1);
 
@@ -354,6 +354,25 @@ class ModelContext implements ITopLevelElement, CommandStackListener {
 		}
 	}
 
+	/**
+	 * Gathers all the error messages of a given diagnostic.
+	 * 
+	 * @param diagnostic
+	 * @return The error message of <code>diagnostic</code> <i>and the ones of its potential
+	 *         children</i>.
+	 */
+	private String getFullMessage(Diagnostic diagnostic) {
+		String res = new String();
+		if(diagnostic.getSeverity() != Diagnostic.OK) {
+			res = diagnostic.getMessage();
+			for(Diagnostic child : diagnostic.getChildren()) {
+				String childMessage = getFullMessage(child);
+				res += (childMessage.isEmpty() ? "" : "\n") + childMessage;
+			}
+		}
+		return res;
+	}
+
 	/**
 	 * Perform saving of the model and states the last change as intended.
 	 * Added to solve issue #2140.