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package com.sun.msv.relaxns.verifier;
import org.iso_relax.dispatcher.Dispatcher;
import org.iso_relax.dispatcher.ElementDecl;
import org.iso_relax.dispatcher.IslandSchema;
import org.iso_relax.dispatcher.IslandVerifier;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
import com.sun.msv.relaxns.grammar.relax.AnyOtherElementExp;
/**
* IslandVerifier that validates <anyOtherElement /> of RELAX.
*
* @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
*/
public class AnyOtherElementVerifier
extends DefaultHandler
implements IslandVerifier {
/** this Verifier validates these expressions.
*
* during validation, failed expression is removed.
*/
private final AnyOtherElementExp[] exps;
public AnyOtherElementVerifier( AnyOtherElementExp[] exps ) {
this.exps = exps;
}
protected Dispatcher dispatcher;
public void setDispatcher( Dispatcher disp ) {
this.dispatcher = disp;
}
public void startElement( String namespaceURI,
String localName, String qName, Attributes atts )
throws SAXException {
IslandSchema is = dispatcher.getSchemaProvider().getSchemaByNamespace(namespaceURI);
if( is!=null ) {
// find an island that has to be validated.
// switch to the new IslandVerifier.
IslandVerifier iv = is.createNewVerifier( namespaceURI, is.getElementDecls() );
dispatcher.switchVerifier(iv);
iv.startElement(namespaceURI,localName,qName,atts);
return;
}
boolean atLeastOneIsValid = false;
for( int i=0; i<exps.length; i++ )
if( exps[i]!=null ) {
if( exps[i].getNameClass().accepts( namespaceURI, localName ) )
atLeastOneIsValid = true;
else
exps[i] = null; // this one is no longer valid.
}
if(!atLeastOneIsValid)
// none is valid. report an error.
dispatcher.getErrorHandler().error(
new SAXParseException(
Localizer.localize( ERR_UNEXPECTED_NAMESPACE, new Object[]{namespaceURI} ),
locator ) );
}
public void endChildIsland( String namespaceURI, ElementDecl[] rules ) {
// error report should have done by child verifier, if any.
// so just do nothing.
}
public ElementDecl[] endIsland() {
// collect satisfied AnyOtherElements and return it as Rules
int i,j;
int len=0;
for( i=0; i<exps.length; i++ )
if( exps[i]!=null ) len++;
ElementDecl[] r = new ElementDecl[len];
for( i=0,j=0; i<exps.length; i++ )
if( exps[i]!=null ) r[j++]=exps[i];
return r;
}
protected Locator locator;
public void setDocumentLocator( Locator loc ) {
this.locator = loc;
}
public static final String ERR_UNEXPECTED_NAMESPACE =
"AnyOtherElementVerifier.UnexpectedNamespace";
}