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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.ctakes.jdl.data.xml;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xml.sax.SAXException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.IOException;

/**
 * To parse DOM.
 * 
 * @author mas
 */
public class DomParser {
	private String srcXml;
	private Document dom;

	/**
	 * @param srcXml
	 *            the srcXml
	 */
	public DomParser(final String srcXml) {
		setSrcXml(srcXml);
	}

	/**
	 * DOM parser.
	 */
	private final void parse() {
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		factory.setNamespaceAware(true);
		// factory.setValidating(true);
		try {
			DocumentBuilder builder = factory.newDocumentBuilder();
			dom = builder.parse(srcXml);
		} catch (ParserConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SAXException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * @return the srcXml
	 */
	public final String getSrcXml() {
		return srcXml;
	}

	/**
	 * @param srcXml
	 *            the srcXml to set
	 */
	public final void setSrcXml(final String srcXml) {
		this.srcXml = srcXml;
		parse();
	}

	/**
	 * @return the root
	 */
	public final Element getRoot() {
		return dom.getDocumentElement();
	}
}