namespacelistwriter.java

这是外国一个开源推理机

/*  Sesame - Storage and Querying architecture for RDF and RDF Schema
 *  Copyright (C) 2001-2005 Aduna
 *
 *  Contact:
 *  	Aduna
 *  	Prinses Julianaplein 14 b
 *  	3817 CS Amersfoort
 *  	The Netherlands
 *  	tel. [phone]
 *  	fax. [phone]
 *
 *  	http://aduna.biz/
 *  	http://www.openrdf.org/
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.openrdf.sesame.server.http.io;

import java.io.IOException;
import java.io.OutputStream;

import org.openrdf.util.xml.XmlWriter;

import org.openrdf.sesame.sail.NamespaceIterator;

public class NamespaceListWriter {

/*-------------------------------------------+
| Constructors                               |
+-------------------------------------------*/

	public NamespaceListWriter() {
	}

/*-------------------------------------------+
| Methods                                    |
+-------------------------------------------*/

	public void write(
		NamespaceIterator nsIter, OutputStream outputStream)
		throws IOException
	{
		XmlWriter xmlWriter = new XmlWriter(outputStream);

		xmlWriter.startDocument();
		xmlWriter.startTag("namespacelist");

		while (nsIter.hasNext()) {
			nsIter.next();

			xmlWriter.setAttribute("prefix", nsIter.getPrefix());
			xmlWriter.setAttribute("name", nsIter.getName());
			xmlWriter.emptyElement("namespace");
		}
		nsIter.close();

		xmlWriter.endTag("namespacelist");
		xmlWriter.endDocument();
	}
}