1 files changed, 94 insertions, 0 deletions
diff --git a/plugins/org.eclipse.sirius.diagram/src/org/eclipse/sirius/diagram/business/internal/componentization/mappings/table/CandidateMapping.java b/plugins/org.eclipse.sirius.diagram/src/org/eclipse/sirius/diagram/business/internal/componentization/mappings/table/CandidateMapping.java
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index 0000000000..fdb7bd1677
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+++ b/plugins/org.eclipse.sirius.diagram/src/org/eclipse/sirius/diagram/business/internal/componentization/mappings/table/CandidateMapping.java
@@ -0,0 +1,94 @@
+/*******************************************************************************
+ * Copyright (c) 2009 THALES GLOBAL SERVICES.
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *    Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.sirius.diagram.business.internal.componentization.mappings.table;
+
+import java.util.Collection;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.sirius.diagram.business.internal.metamodel.helper.LayerHelper;
+import org.eclipse.sirius.diagram.description.DiagramElementMapping;
+import org.eclipse.sirius.diagram.description.Layer;
+
+/**
+ * A candidate mapping.
+ * 
+ * @author mchauvin
+ */
+public class CandidateMapping {
+
+    private DiagramElementMapping mapping;
+
+    private Layer parentLayer;
+
+    private Collection<Layer> parentLayers;
+
+    /**
+     * Construct a new candidate mapping.
+     * 
+     * @param mapping
+     *            the mapping to wrap
+     */
+    public CandidateMapping(final DiagramElementMapping mapping) {
+        this.mapping = mapping;
+        this.parentLayer = computeParentLayer();
+        this.parentLayers = computeParentLayers();
+    }
+
+    /**
+     * compute all Layers which use this mapping if available.
+     * 
+     * @return a containing Layer if available.
+     */
+    private Collection<Layer> computeParentLayers() {
+        return LayerHelper.getParentLayers(mapping);
+    }
+
+    private Layer computeParentLayer() {
+        EObject current = mapping;
+        while (current != null) {
+            current = current.eContainer();
+            if (current instanceof Layer) {
+                return (Layer) current;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Get the direct parent layer.
+     * 
+     * @return the parentLayer
+     */
+    public Layer getParentLayer() {
+        return parentLayer;
+    }
+
+    /**
+     * Get the indirect parent layers.
+     * 
+     * @return the parentLayers
+     */
+    public Collection<Layer> getParentLayers() {
+        return parentLayers;
+    }
+
+    /**
+     * Get the wrapped mapping.
+     * 
+     * @return the wrapped mapping
+     */
+    public DiagramElementMapping getMapping() {
+        return mapping;
+    }
+
+}