/*
* @(#)$Id: LazyTypeIncubator.java 1566 2003-06-09 20:37:49Z kk122374 $
*
* 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.datatype.xsd;
/*
import com.sun.msv.datatype.xsd.StringType;
*/
import java.util.Iterator;
import java.util.List;
import org.relaxng.datatype.DatatypeException;
import org.relaxng.datatype.ValidationContext;
import com.sun.msv.datatype.xsd.TypeIncubator;
import com.sun.msv.datatype.xsd.XSDatatype;
import com.sun.msv.reader.GrammarReader;
/**
* Lazy XSTypeIncubator
*
* <p>
* This incubator is used to add facets to lazily created XSDatatypeExp object.
* Since the actual Datatype object is not available when facets are parsed,
* this object merely stores all facets when the addFacet method is called.
*
* <p>
* Once the actual Datatype is provided, this class uses ordinary
* TypeIncubator and builds a real type object.
*
* @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
*/
class LazyTypeIncubator implements XSTypeIncubator { // package local
public LazyTypeIncubator( XSDatatypeExp base, GrammarReader reader ) {
this.baseType = base;
this.reader = reader;
}
/** base object. */
private final XSDatatypeExp baseType;
private final GrammarReader reader;
/**
* applied facets.
* Order between facets are possibly significant.
*/
private final List facets = new java.util.LinkedList();
public void addFacet( String name, String strValue, boolean fixed,
ValidationContext context ) {
facets.add( new Facet(name,strValue,fixed,context) );
}
public XSDatatypeExp derive( final String nsUri, final String localName ) throws DatatypeException {
// facets might be further added, so remember the size of the facet.
final int facetSize = facets.size();
if(facetSize==0) return baseType;
return new XSDatatypeExp(nsUri,localName,reader,new XSDatatypeExp.Renderer(){
public XSDatatype render( XSDatatypeExp.RenderingContext context )
throws DatatypeException {
TypeIncubator ti = new TypeIncubator( baseType.getType(context) );
Iterator itr = facets.iterator();
for( int i=0; i<facetSize; i++ ) {
Facet f = (Facet)itr.next();
ti.addFacet( f.name, f.value, f.fixed, f.context );
}
return ti.derive(nsUri,localName);
}
});
}
/** store the information about one added facet. */
private class Facet {
String name;
String value;
boolean fixed;
ValidationContext context;
public Facet( String name, String value, boolean fixed, ValidationContext context ) {
this.name=name; this.value=value; this.fixed=fixed; this.context=context;
}
}
}