1 files changed, 104 insertions, 0 deletions
diff --git a/plugins/org.eclipse.sirius/src/org/eclipse/sirius/tools/internal/validation/description/constraints/EReferenceCustomizationReferenceNameCommonToAppliedOnConstraint.java b/plugins/org.eclipse.sirius/src/org/eclipse/sirius/tools/internal/validation/description/constraints/EReferenceCustomizationReferenceNameCommonToAppliedOnConstraint.java
new file mode 100644
index 0000000000..94a6cbfdbf
--- /dev/null
+++ b/plugins/org.eclipse.sirius/src/org/eclipse/sirius/tools/internal/validation/description/constraints/EReferenceCustomizationReferenceNameCommonToAppliedOnConstraint.java
@@ -0,0 +1,104 @@
+/*******************************************************************************
+ * Copyright (c) 2012 THALES GLOBAL SERVICES.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.sirius.tools.internal.validation.description.constraints;
+
+import java.util.Iterator;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.emf.ecore.EClassifier;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.validation.IValidationContext;
+
+import org.eclipse.sirius.description.EReferenceCustomization;
+
+/**
+ * A
+ * {@link AbstractEStructuralFeatureCustomizationFeatureNameCommonToAppliedOnConstraint}
+ * to check the constraint that
+ * {@link EReferenceCustomization#getReferenceName()} is the name of a common
+ * {@link EReference} to all referenced style description or a description
+ * element owned by a style description through
+ * {@link EReferenceCustomization#getAppliedOn()} or different
+ * {@link EReference} with same name and having a common type. Check also that
+ * the {@link EReferenceCustomization#getValue()} type is conforming to the type
+ * of the common {@link EReference} or the common type of different
+ * {@link EReference} available.
+ * 
+ * @author <a href="mailto:esteban.dugueperoux@obeo.fr">Esteban Dugueperoux</a>
+ */
+public class EReferenceCustomizationReferenceNameCommonToAppliedOnConstraint extends AbstractEStructuralFeatureCustomizationFeatureNameCommonToAppliedOnConstraint {
+
+    private static final String EREFERENCE_NAME_ON = " EReference name on ";
+
+    @Override
+    public IStatus validate(IValidationContext ctx) {
+        IStatus status = null;
+        EObject target = ctx.getTarget();
+        if (target instanceof EReferenceCustomization) {
+            EReferenceCustomization eReferenceCustomization = (EReferenceCustomization) target;
+            status = validateEReferenceCustomization(eReferenceCustomization, ctx);
+        }
+        if (status == null) {
+            status = ctx.createSuccessStatus();
+        }
+        return status;
+    }
+
+    private IStatus validateEReferenceCustomization(EReferenceCustomization eReferenceCustomization, IValidationContext ctx) {
+        IStatus status = null;
+        String referenceName = eReferenceCustomization.getReferenceName();
+        Iterator<EObject> appliedOnIterator = eReferenceCustomization.getAppliedOn().iterator();
+        if (appliedOnIterator.hasNext()) {
+            EObject firstStyleDescriptionElt = appliedOnIterator.next();
+            if (!isStyleDescriptionElt(firstStyleDescriptionElt)) {
+                status = ctx.createFailureStatus(getPath(firstStyleDescriptionElt) + " doesn't concerns a style description or a style description element");
+            } else {
+                EStructuralFeature eStructuralFeature = firstStyleDescriptionElt.eClass().getEStructuralFeature(referenceName);
+                if (eStructuralFeature instanceof EReference) {
+                    EClassifier firstEType = eStructuralFeature.getEType();
+                    status = validateFollowingStyleDescriptionElts(appliedOnIterator, firstStyleDescriptionElt, firstEType, referenceName, ctx);
+                } else if (eStructuralFeature == null) {
+                    status = ctx.createFailureStatus(referenceName + EREFERENCE_NAME_ON + getPath(firstStyleDescriptionElt) + " doesn't exists");
+                } else {
+                    status = ctx.createFailureStatus(referenceName + EREFERENCE_NAME_ON + getPath(firstStyleDescriptionElt) + " concerns " + eStructuralFeature + " which is not a EReference");
+                }
+            }
+        }
+        return status;
+    }
+
+    private IStatus validateFollowingStyleDescriptionElts(Iterator<EObject> appliedOnIterator, EObject firstStyleDescriptionElt, EClassifier firstEType, String referenceName, IValidationContext ctx) {
+        IStatus status = null;
+        while (appliedOnIterator.hasNext()) {
+            EObject next = appliedOnIterator.next();
+            if (!isStyleDescriptionElt(next)) {
+                status = ctx.createFailureStatus(getPath(next) + " doesn't concerns a style description or a style description element");
+                break;
+            } else {
+                EStructuralFeature eStructuralFeature = next.eClass().getEStructuralFeature(referenceName);
+                if (eStructuralFeature instanceof EReference) {
+                    if (firstEType != eStructuralFeature.getEType()) {
+                        status = ctx.createFailureStatus(getPath(firstStyleDescriptionElt) + " and " + getPath(next) + "have each a EAttribute named " + referenceName + " but with differents types");
+                        break;
+                    }
+                } else if (eStructuralFeature == null) {
+                    status = ctx.createFailureStatus(referenceName + EREFERENCE_NAME_ON + getPath(next) + " doesn't exists");
+                } else {
+                    status = ctx.createFailureStatus(referenceName + EREFERENCE_NAME_ON + getPath(next) + " concerns " + eStructuralFeature + " which is not a EAttribute");
+                    break;
+                }
+            }
+        }
+        return status;
+    }
+}