/*

* 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_TYPE;

import cenrep.Access;

import cenrep.impl.KeyImpl;

import cenrep.impl.RepositoryImpl;

public class AlwaysPassConstraint extends AbstractModelConstraint {

	private static final String ALWAYS_PASS = "alwayspass";

	private static final String URL_POSTFIX = "#.7B.25element_ref.25.7D_read_capability_differs_from_AlwaysPass";

	/*

	 * (non-Javadoc)

	 * @see org.eclipse.emf.validation.AbstractModelConstraint#validate(org.eclipse.emf.validation.IValidationContext)

	 * For Access.type==READ: AlwaysPass capa exists <=> there are not other R-capas

	 */

	public IStatus validate(IValidationContext ctx) {

		Access access = (Access) ctx.getTarget();

		if (access.getType() == ACCESS_TYPE.READ) {

			String capa = access.getCapabilities().trim().toLowerCase();

			if (capa != null){

				if (capa.indexOf(ALWAYS_PASS) == -1) {

					IStatus status = MarkerManager.getInstance().addProblem(ctx, ElementRefParser.getName(access), ElementRefParser.getName(access),

							URL_POSTFIX);

					return status; 

				}

			}

		}

		return ctx.createSuccessStatus();

	}

}