/*******************************************************************************
 * Copyright 2017 Graz University of Technology
 * EAAF-Core Components has been developed in a cooperation between EGIZ,  
 * A-SIT+, A-SIT, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.2 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * https://joinup.ec.europa.eu/news/understanding-eupl-v12
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 *******************************************************************************/
/*******************************************************************************
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/*******************************************************************************
 *******************************************************************************/
package at.gv.egiz.eaaf.core.impl.idp.process.test;

import java.util.Objects;

import org.apache.commons.lang3.BooleanUtils;

import at.gv.egiz.eaaf.core.api.idp.process.ExpressionEvaluationContext;
import at.gv.egiz.eaaf.core.api.idp.process.ExpressionEvaluator;

/**
 * Expression evaluator that guesses the boolean value from a String. Refer to {@link BooleanUtils#toBoolean(String)}
 * for further information.
 * 
 * @author tknall
 *  
 */
public class BooleanStringExpressionEvaluator implements ExpressionEvaluator {

	@Override
	public boolean evaluate(ExpressionEvaluationContext expressionContext, String expression) {
		return BooleanUtils.toBoolean(Objects.requireNonNull(expression, "Expression must not be null."));
	}

}