org/objectweb/proactive/core/xml/io/StreamReader.java

/* 
 * ################################################################
 * 
 * ProActive: The Java(TM) library for Parallel, Distributed, 
 *            Concurrent computing with Security and Mobility
 * 
 * Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
 * Contact: proactive@objectweb.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 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
 *  
 *  Initial developer(s):               The ProActive Team
 *                        http://www.inria.fr/oasis/ProActive/contacts.html
 *  Contributor(s): 
 * 
 * ################################################################
 */ 
package org.objectweb.proactive.core.xml.io;

import java.io.IOException;

import org.apache.log4j.Logger;
import org.apache.xerces.parsers.SAXParser;
import org.objectweb.proactive.core.util.log.Loggers;
import org.objectweb.proactive.core.util.log.ProActiveLogger;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;


public class StreamReader implements XMLReader {
    static Logger logger = ProActiveLogger.getLogger(Loggers.XML);
    private org.xml.sax.XMLReader parser;
    private org.xml.sax.InputSource inputSource;

    public StreamReader(java.io.InputStream in, XMLHandler xmlHandler)
        throws java.io.IOException {
        this(new org.xml.sax.InputSource(in), xmlHandler);
    }

    public StreamReader(java.io.Reader reader, XMLHandler xmlHandler)
        throws java.io.IOException {
        this(new org.xml.sax.InputSource(reader), xmlHandler);
    }

    public StreamReader(org.xml.sax.InputSource inputSource,
        XMLHandler xmlHandler) throws java.io.IOException {
        this(inputSource, xmlHandler, null, null);
    }

    public StreamReader(org.xml.sax.InputSource inputSource,
        XMLHandler xmlHandler, java.net.URL schema,
        org.xml.sax.ErrorHandler errorHandler) throws java.io.IOException {
        this.inputSource = inputSource;

        DefaultHandlerAdapter adaptor = new DefaultHandlerAdapter(xmlHandler);

        //      javax.xml.parsers.SAXParserFactory factory = javax.xml.parsers.SAXParserFactory.newInstance();
        //      parser = factory.newSAXParser().getXMLReader();
        parser = new SAXParser();
        //parser = org.xml.sax.helpers.XMLReaderFactory.createXMLReader();
        parser.setContentHandler(adaptor);

        if ((schema != null) || (errorHandler != null)) {
            try {
                parser.setErrorHandler((errorHandler == null)
                    ? new SAXParserErrorHandler() : errorHandler);

                if (schema != null) {
                    parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaSource",
                        schema.toString());

                }

                parser.setFeature("http://xml.org/sax/features/validation", true);
                parser.setFeature("http://apache.org/xml/features/validation/schema",
                    true);

                //            parser.parse(inputSource);
            } catch (SAXNotRecognizedException e) {
                logger.error("unrecognised feature: ");
                logger.error("http://xml.org/sax/features/validation");
            } catch (SAXNotSupportedException e) {
                logger.error("unrecognised feature: ");
                logger.error("http://apache.org/xml/features/validation/schema");
            }
        }
    }

    // -- implements XMLReader ------------------------------------------------------
    public void read() throws SAXException, IOException {
            //parser.setFeature("http://xml.org/sax/features/validation",true);
            //parser.setFeature("http://apache.org/xml/features/validation/schema",true);
            parser.parse(inputSource);
    }
}

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