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Plugin for extending test environment classpath

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/*
 * Copyright (c) 2007, Red Hat Middleware, LLC. All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, v. 2.1. This program is distributed in the
 * hope that it will be useful, but WITHOUT A WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details. You should have received a
 * copy of the GNU Lesser General Public License, v.2.1 along with this
 * distribution; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * Red Hat Author(s): Steve Ebersole
 */
package org.jboss.maven.shared.xml.dom4j;

import org.dom4j.Element;

/**
 * Extracts the text value from a named element of an element.
 *
 * @author Steve Ebersole
 */
public class NestedElementValueExtracter extends ExtracterSupport {
	private final String elementName;

	public NestedElementValueExtracter(String elementName, boolean required, String defaultValue) {
		super( required, defaultValue );
		this.elementName = elementName;
	}

	public String extractValue(Element element) {
		Element subElement = element.element( elementName );
		return subElement == null
				? null
				: subElement.getTextTrim();
	}
}