net.sf.qualitytest.blueprint.strategy.creation.DefaultEnumCreationStrategy Maven / Gradle / Ivy

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/*******************************************************************************
 * Copyright 2013 André Rouél and Dominik Seichter
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package net.sf.qualitytest.blueprint.strategy.creation;

import net.sf.qualitycheck.Check;

/**
 * Creation strategy which creates an enum using the first value in an enum constant.
 * 
 * @author Dominik Seichter
 * 
 */
public class DefaultEnumCreationStrategy extends ValueCreationStrategy> {

	/**
	 * Blueprint an enum value using the default configuration.
	 * 
	 * This method will return the first enum constant in the enumeration.
	 * 
	 * @param 
	 * @param expectedClazz
	 *            the class of an enumeration.
	 * @return a valid enum value.
	 */
	@SuppressWarnings("unchecked")
	@Override
	public Enum createValue(final Class expectedClazz) {
		Check.notNull(expectedClazz, "expectedClazz");
		final Class> enumClazz = (Class>) expectedClazz;
		final Enum[] enumConstants = enumClazz.getEnumConstants();
		return enumConstants.length > 0 ? enumConstants[0] : null;
	}

}