/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2002 Sun
 * Microsystems, Inc. All Rights Reserved.
 */
package org.netbeans.modules.xml.catalog.impl.oasis;

import org.xml.sax.*;

/**
 * The class reads XML documents according to specified DTD and
 * translates all related events into CatalogHandler events.
 * 
Usage sample:
 * 
 *    CatalogParser parser = new CatalogParser(...);
 *    parser.parse(new InputSource("..."));
 * 
 * 
Warning: the class is machine generated. DO NOT MODIFY
 */
public class CatalogParser implements DocumentHandler {
    
    private java.lang.StringBuffer buffer;
    
    private CatalogHandler handler;
    
    private java.util.Stack context;
    
    public CatalogParser(final CatalogHandler handler) {
        this.handler = handler;
        buffer = new StringBuffer(111);
        context = new java.util.Stack();
    }
    
    public void setDocumentLocator(Locator locator) {
    }
    
    public void startDocument() throws SAXException {
    }
    
    public void endDocument() throws SAXException {
    }
    
    public void startElement(java.lang.String name, AttributeList attrs) throws SAXException {
        dispatch(true);
        context.push(new Object[] {name, new org.xml.sax.helpers.AttributeListImpl(attrs)});
        if ("system".equals(name)) { // NOI18N
            handler.handle_system(attrs);
        } else if ("uri".equals(name)) { // NOI18N
            handler.handle_uri(attrs);
        } else if ("public".equals(name)) { // NOI18N
            handler.handle_public(attrs);
        } else if ("rewriteSystem".equals(name)) { // NOI18N
            handler.handle_rewriteSystem(attrs);
        } else if ("delegateSystem".equals(name)) { // NOI18N
            handler.handle_delegateSystem(attrs);
        } else if ("catalog".equals(name)) { // NOI18N
            handler.start_catalog(attrs);
        } else if ("rewriteURI".equals(name)) { // NOI18N
            handler.handle_rewriteURI(attrs);
        } else if ("delegatePublic".equals(name)) { // NOI18N
            handler.handle_delegatePublic(attrs);
        } else if ("nextCatalog".equals(name)) { // NOI18N
            handler.handle_nextCatalog(attrs);
        } else if ("group".equals(name)) { // NOI18N
            handler.start_group(attrs);
        } else if ("delegateURI".equals(name)) { // NOI18N
            handler.handle_delegateURI(attrs);
        }
    }
    
    public void endElement(java.lang.String name) throws SAXException {
        dispatch(false);
        context.pop();
        if ("catalog".equals(name)) { // NOI18N
            handler.end_catalog();
        } else if ("group".equals(name)) { // NOI18N
            handler.end_group();
        }
    }
    
    public void characters(char[] chars, int start, int len) throws SAXException {
        buffer.append(chars, start, len);
    }
    
    public void ignorableWhitespace(char[] chars, int start, int len) throws SAXException {
    }
    
    public void processingInstruction(java.lang.String target, java.lang.String data) throws SAXException {
    }
    
    private void dispatch(final boolean fireOnlyIfMixed) throws SAXException {
        if (fireOnlyIfMixed && buffer.length() == 0) return; //skip it
        
        Object[] ctx = (Object[]) context.peek();
        String here = (String) ctx[0];
        AttributeList attrs = (AttributeList) ctx[1];
        buffer.delete(0, buffer.length());
    }
    
    /**
     * The recognizer entry method taking an InputSource.
     * @param input InputSource to be parsed.
     * @throws java.io.IOException on I/O error.
     * @throws SAXException propagated exception thrown by a DocumentHandler.
     * @throws javax.xml.parsers.ParserConfigurationException a parser satisfining requested configuration can not be created.
     * @throws javax.xml.parsers.FactoryConfigurationRrror if the implementation can not be instantiated.
     */
    public void parse(final InputSource input) throws SAXException, javax.xml.parsers.ParserConfigurationException, java.io.IOException {
        parse(input, this);
    }
    
    /**
     * The recognizer entry method taking a URL.
     * @param url URL source to be parsed.
     * @throws java.io.IOException on I/O error.
     * @throws SAXException propagated exception thrown by a DocumentHandler.
     * @throws javax.xml.parsers.ParserConfigurationException a parser satisfining requested configuration can not be created.
     * @throws javax.xml.parsers.FactoryConfigurationRrror if the implementation can not be instantiated.
     */
    public void parse(final java.net.URL url) throws SAXException, javax.xml.parsers.ParserConfigurationException, java.io.IOException {
        parse(new InputSource(url.toExternalForm()), this);
    }
    
    /**
     * The recognizer entry method taking an Inputsource.
     * @param input InputSource to be parsed.
     * @throws java.io.IOException on I/O error.
     * @throws SAXException propagated exception thrown by a DocumentHandler.
     * @throws javax.xml.parsers.ParserConfigurationException a parser satisfining requested configuration can not be created.
     * @throws javax.xml.parsers.FactoryConfigurationRrror if the implementation can not be instantiated.
     */
    public static void parse(final InputSource input, final CatalogHandler handler) throws SAXException, javax.xml.parsers.ParserConfigurationException, java.io.IOException {
        parse(input, new CatalogParser(handler));
    }
    
    /**
     * The recognizer entry method taking a URL.
     * @param url URL source to be parsed.
     * @throws java.io.IOException on I/O error.
     * @throws SAXException propagated exception thrown by a DocumentHandler.
     * @throws javax.xml.parsers.ParserConfigurationException a parser satisfining requested configuration can not be created.
     * @throws javax.xml.parsers.FactoryConfigurationRrror if the implementation can not be instantiated.
     */
    public static void parse(final java.net.URL url, final CatalogHandler handler) throws SAXException, javax.xml.parsers.ParserConfigurationException, java.io.IOException {
        parse(new InputSource(url.toExternalForm()), handler);
    }
    
    private static void parse(final InputSource input, final CatalogParser recognizer) throws SAXException, javax.xml.parsers.ParserConfigurationException, java.io.IOException {
        javax.xml.parsers.SAXParserFactory factory = javax.xml.parsers.SAXParserFactory.newInstance();
        factory.setValidating(true);  //the code was generated according DTD
        factory.setNamespaceAware(false);  //the code was generated according DTD
        Parser parser = factory.newSAXParser().getParser();
        parser.setDocumentHandler(recognizer);
        parser.setErrorHandler(recognizer.getDefaultErrorHandler());
        parser.parse(input);
    }
    
    private ErrorHandler getDefaultErrorHandler() {
        return new ErrorHandler() {
            public void error(SAXParseException ex) throws SAXException  {
                if (context.isEmpty()) {
                    if ( Util.THIS.isLoggable() ) /* then */ Util.THIS.debug ("Missing DOCTYPE."); // NOI18N
                }
                throw ex;
            }
            
            public void fatalError(SAXParseException ex) throws SAXException {
                throw ex;
            }
            
            public void warning(SAXParseException ex) throws SAXException {
                // ignore
            }
        };
        
    }
    
}