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/*****************************************************************************
 * Copyright (c) 2010 CEA LIST.
 *
 *    
 * 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
 *
 *****************************************************************************/
package org.eclipse.papyrus.sysml.service.types.helper;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.edithelper.AbstractEditHelperAdvice;
import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.IEditCommandRequest;
import org.eclipse.papyrus.sysml.constraints.ConstraintBlock;
import org.eclipse.papyrus.sysml.constraints.ConstraintProperty;
import org.eclipse.uml2.uml.Class;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.Type;
import org.eclipse.uml2.uml.util.UMLUtil;

/** Specific advice for Property creation owned by a {@link ConstraintBlock}
 *	ConstraintParameter are defined in ConstraintProperty but really owned by ConstraintBlock  
 */
public class ConstraintParameterEditHelperAdvice extends AbstractEditHelperAdvice {

	@Override
	public ICommand getBeforeEditCommand(IEditCommandRequest request) {
		if (request instanceof ConfigureRequest) {
			EObject elementToConfigure = ((ConfigureRequest)request).getElementToConfigure();
			if (elementToConfigure != null && elementToConfigure instanceof Property) {
				EObject container = elementToConfigure.eContainer();
				if (container != null && container instanceof Property) {
					Property constraintProperty = (Property) container;
					if (UMLUtil.getStereotypeApplication(constraintProperty, ConstraintProperty.class) != null) {
						Type type = constraintProperty.getType();
						if (type != null && type instanceof Class && UMLUtil.getStereotypeApplication(type, ConstraintBlock.class) != null) {
							((Class)type).getOwnedAttributes().add((Property)elementToConfigure);
						}
					}
				}
			}
		}
		return super.getBeforeEditCommand(request);
	}
	
}

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