/*
 * @(#)$Id: SAXParserFactoryImpl.java,v 1.2 2001/11/19 19:57:42 kk122374 Exp $
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */
package com.sun.msv.verifier.jaxp;

import java.io.IOException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
import org.xml.sax.SAXException;
import org.iso_relax.verifier.VerifierFactory;
import org.iso_relax.verifier.VerifierConfigurationException;
import org.iso_relax.verifier.Schema;
import com.sun.msv.verifier.jarv.TheFactoryImpl;

/**
 * SAXParserFactory implementation that supports validation.
 * 
 * <p>
 * This class uses another SAXParserFactory implementation and 
 * adds the validation capability to it.
 * 
 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
 */
public class SAXParserFactoryImpl extends SAXParserFactory
{
	/** Actual SAXParserFactory implementation. */
	private final SAXParserFactory core;
	
	/** JARV VerifierFactory implementation, which will be used to parse schemas. */
	private final VerifierFactory jarvFactory;
	
	/**
	 * JARV Schema object which is associated with this factory, or null.
	 */
	private Schema schema;
	
	/**
	 * Creates a new instance by using the default SAXParserFactory implementation
	 * as the underlying parser. This constructor does not set any schema.
	 */
	public SAXParserFactoryImpl() {
		this( SAXParserFactory.newInstance() );
	}
	
	/**
	 * Creates a new instance by specifying the underlying SAXParserFactory
	 * implementation. This constructor does not set any schema.
	 */
	public SAXParserFactoryImpl( SAXParserFactory _factory ) {
		this(_factory,null);
	}
	
	/**
	 * Creates a new instance by using a default SAXParserFactory implementation
	 * and the specified schema object.
	 */
	public SAXParserFactoryImpl( Schema schema ) {
		this( SAXParserFactory.newInstance(), schema );
	}
	
	/**
	 * Creates a new instance that validates documents against the specified schema.
	 */
	public SAXParserFactoryImpl( java.io.File schemaAsFile )
			throws VerifierConfigurationException, SAXException, IOException {
		this();
		schema = jarvFactory.compileSchema(schemaAsFile);
	}

	/**
	 * Creates a new instance that validates documents against the specified schema.
	 */
	public SAXParserFactoryImpl( org.xml.sax.InputSource _schema )
			throws VerifierConfigurationException, SAXException, IOException {
		this();
		schema = jarvFactory.compileSchema(_schema);
	}

	/**
	 * Creates a new instance that validates documents against the specified schema.
	 */
	public SAXParserFactoryImpl( String schemaUrl )
			throws VerifierConfigurationException, SAXException, IOException {
		this();
		schema = jarvFactory.compileSchema(schemaUrl);
	}
	
	public SAXParserFactoryImpl( SAXParserFactory _factory, Schema _schema ) {
		this.core = _factory;
		// to make this factory work with JARV, configure it to namespace aware.
		core.setNamespaceAware(true);
		jarvFactory = new TheFactoryImpl(core);
		this.schema = _schema;
	}
	
	
	
	
	
	public boolean getFeature( String name ) throws ParserConfigurationException,
													SAXNotRecognizedException,
													SAXNotSupportedException {
        if( name.equals(com.sun.msv.verifier.jarv.Const.PANIC_MODE_FEATURE) )
            return jarvFactory.isFeature(name);
		return core.getFeature(name);
	}
	
	public void setFeature( String name, boolean value )
		throws ParserConfigurationException, SAXNotRecognizedException,	SAXNotSupportedException {
		
        if( name.equals(com.sun.msv.verifier.jarv.Const.PANIC_MODE_FEATURE) )
            jarvFactory.setFeature(name,value);
		core.setFeature(name,value);
	}
	
	public SAXParser newSAXParser()
		throws ParserConfigurationException, SAXException {
		
		try {
			return new SAXParserImpl(core.newSAXParser(),jarvFactory,
				(schema==null)?null:schema.newVerifier() );
		} catch( VerifierConfigurationException e ) {
			throw new SAXException(e);
		}
	}
	
	
	public void setNamespaceAware( boolean awareness ) {
		core.setNamespaceAware(awareness);
	}
	
	public boolean isNamespaceAware() {
		return core.isNamespaceAware();
	}
	
	public void setValidating( boolean validating ) {
		core.setValidating(validating);
	}
	
	public boolean isValidating() {
		return core.isValidating();
	}
}