/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package constraints;

import helpers.MarkerManager;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.emf.ecore.EObject;

import org.eclipse.emf.validation.AbstractModelConstraint;

import org.eclipse.emf.validation.IValidationContext;

import cenrep.Access;

import cenrep.IAccessable;

import cenrep.IReadOnly;

public class ReadOnlyRuleConstraint extends AbstractModelConstraint {

	private static final String URL_POSTFIX ="#.7B.25element_ref.25.7D_is_read-only.2C_but_also_write_capabilities_are_set";

	public ReadOnlyRuleConstraint() {

	}

	@Override

	public IStatus validate(IValidationContext ctx) {

		EObject target = ctx.getTarget();

		if(IReadOnly.class.isInstance(target)&&((IReadOnly)target).isReadOnly()){

			if(IAccessable.class.isInstance(target)){

				Access wAccess = ((IAccessable)target).getWriteAccess();

				if(wAccess!=null&&

						wAccess.getCapabilities()!=null &&

						!wAccess.getCapabilities().trim().isEmpty()){

					return MarkerManager.getInstance().addProblem(ctx, ElementRefParser.getName(target),ElementRefParser.getName(target),

							URL_POSTFIX);

				}

			}

		}

		return ctx.createSuccessStatus();

	}

}