/*
* @(#)$Id: MultiSchemaReader.java,v 1.2 2002/02/24 01:30:15 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.reader.xmlschema;
import com.sun.msv.grammar.xmlschema.XMLSchemaGrammar;
import com.sun.msv.util.Util;
import java.io.IOException;
import org.xml.sax.ContentHandler;
import org.xml.sax.XMLReader;
import org.xml.sax.SAXException;
import org.xml.sax.InputSource;
import org.xml.sax.helpers.LocatorImpl;
import org.xml.sax.helpers.XMLFilterImpl;
/**
* An utility class that
* reads multiple XML Schema documents and combines them into one schema object.
*
* <h2>Usage</h2>
* <p>
* Creates a new instance of {@link XMLSchemaReader}, then pass it to the
* constructor of this class. Then call the parse method as many times as you want.
* Finally, call the finish method.
* </p><p>
* The parsed grammar can be obtained from the underlying XMLSchemaReader object.
* </p>
*
* @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
*/
public class MultiSchemaReader
{
public MultiSchemaReader( XMLSchemaReader _reader ) {
this.reader = _reader;
reader.setDocumentLocator(new LocatorImpl());
}
private final XMLSchemaReader reader;
public final XMLSchemaReader getReader() { return reader; }
public final void parse( String source ) {
parse(Util.getInputSource(source));
}
/**
* Parses an additional schema.
*
* The caller can call this method many times to parse
* multiple schemas.
*
* If possible, the caller should set the system Id to the InputSource.
*/
public void parse( InputSource is ) {
reader.switchSource( is,
new RootIncludedSchemaState(
reader.sfactory.schemaHead(null)) );
}
/**
* This method should be called when all the schemas are parsed.
*/
public void finish() {
// do the final wrap-up work.
reader.wrapUp();
}
}