/*

* 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.Key;

import cenrep.KeyRange;

public class WAccessWarning extends AbstractModelConstraint {

	private static final String ALWAYS_PASS = "alwayspass";

	private static final String WRITE_DEVICE_DATA = "writedevicedata";

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

	public WAccessWarning() {

	}

	@Override

	public IStatus validate(IValidationContext ctx) {

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

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

			String cap = access.getCapabilities();

			EObject container = access.eContainer();

			if (container instanceof Key)

			{

				Key key = (Key)container;

				if (key.isReadOnly())

					return ctx.createSuccessStatus();

			}

			else if (container instanceof KeyRange)

			{

				KeyRange keyRange = (KeyRange)container;

				if (keyRange.isReadOnly())

					return ctx.createSuccessStatus();

			}

			if(cap==null||

			  (cap.toLowerCase().indexOf(ALWAYS_PASS)==-1 &&

			   cap.toLowerCase().indexOf(WRITE_DEVICE_DATA)==-1))

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

						URL_POSTFIX);

		}

		return ctx.createSuccessStatus();

	}

}