/**
 * Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies). 
 * All rights reserved.
 * This component and the accompanying materials are made available
 * under the terms of the License "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: 
 * This enabler is necessary to get back into EDC in order to use its
 * expression evaluator for any expression associated with a Log Action
 *
 */
package org.eclipse.cdt.debug.edc.internal.breakpointactions;

import org.eclipse.cdt.debug.core.breakpointactions.ILogActionEnabler;
import org.eclipse.cdt.debug.edc.internal.services.dsf.Expressions;
import org.eclipse.cdt.debug.edc.services.IEDCExpression;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IFormattedValues;

public class EDCLogActionEnabler implements ILogActionEnabler {

	Expressions exprService; 
	IDMContext dmContext;

	/**
	 * @param service the expressions service used to evaluate the expression
	 * @param dmc the thread context in which to evaluate the expression
	 */
	public EDCLogActionEnabler(Expressions service, IDMContext dmc) {
		exprService = service;
		dmContext = dmc;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.debug.core.breakpointactions.ILogActionEnabler#evaluateExpression(java.lang.String)
	 */
	public String evaluateExpression(String exprString) throws Exception {
		IEDCExpression expression
		  = (IEDCExpression) exprService.createExpression(dmContext, exprString);
		IFormattedValues.FormattedValueDMContext fvc
		  = exprService.getFormattedValueContext(expression, IFormattedValues.NATURAL_FORMAT);
		return expression.getFormattedValue(fvc).getFormattedValue();
	}

}