/**

  * Alt2XML

  * Copyright © 2014 František Kučera (frantovo.cz)

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, either version 3 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

 package cz.frantovo.alt2xml.out.xml;

 import cz.frantovo.alt2xml.out.Action;

 import cz.frantovo.alt2xml.out.ActionContext;

 import cz.frantovo.alt2xml.out.ActionFactory;

 import cz.frantovo.alt2xml.out.OutputActionException;

 import javax.xml.stream.XMLOutputFactory;

 import javax.xml.stream.XMLStreamException;

 import javax.xml.stream.XMLStreamWriter;

 /**

  * Prints XML.

  *

  * @author Ing. František Kučera (frantovo.cz)

  */

 public class XMLActionFactory implements ActionFactory {

 	private XMLOutputFactory xmlOutputFactory;

 	@Override

 	public String getActionCode() {

 		return "xml";

 	}

 	@Override

 	public Action getAction(ActionContext context) throws OutputActionException {

 		try {

 			XMLStreamWriter writer = getXmlOutputFactory().createXMLStreamWriter(context.getOutputStream());

 			return new XMLAction(context, writer);

 		} catch (XMLStreamException e) {

 			throw new OutputActionException("Unable to create XMLStreamWriter", e);

 		}

 	}

 	private XMLOutputFactory getXmlOutputFactory() {

 		if (xmlOutputFactory == null) {

 			xmlOutputFactory = XMLOutputFactory.newFactory();

 		}

 		return xmlOutputFactory;

 	}

 }