/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ws.extensions.xop.jaxrpc;
import java.util.ArrayList;
import java.util.List;
import org.apache.xerces.xs.XSComplexTypeDefinition;
import org.apache.xerces.xs.XSElementDeclaration;
import org.apache.xerces.xs.XSModelGroup;
import org.apache.xerces.xs.XSObjectList;
import org.apache.xerces.xs.XSParticle;
import org.apache.xerces.xs.XSSimpleTypeDefinition;
import org.apache.xerces.xs.XSTerm;
import org.apache.xerces.xs.XSTypeDefinition;
/**
* Scans complex type definitions for nested XOP type declarations.
* A XOP type declaration is identified as a complex type
* that derives from xsd:base64Binary, i.e:
*
* <code> <pre>
* <xs:complexType name="MyXOPElement" >
* <xs:simpleContent>
* <xs:extension base="xs:base64Binary" >
* <xs:attribute ref="xmime:contentType" />
* </xs:extension>
* </xs:simpleContent>
* </xs:complexType>
* </pre></code>
*
* @author Heiko Braun <heiko.braun@jboss.com>
* @since Jun 9, 2006
* @version $Id: XOPScanner.java 1757 2006-12-22 15:40:24Z thomas.diesler@jboss.com $
*/
public class XOPScanner {
// avoid circular scans
private List<String> scannedItems = new ArrayList<String>();
private static final String BASE64_BINARY = "base64Binary";
/**
* Query a complex type for nested XOP type definitions.
*/
public XSTypeDefinition findXOPTypeDef(XSTypeDefinition typeDef)
{
if(typeDef==null)
return typeDef;
XSTypeDefinition result = null;
String name = typeDef.getName();
String namespace = typeDef.getNamespace()!=null ? typeDef.getNamespace():"";
if(typeDef instanceof XSSimpleTypeDefinition && BASE64_BINARY.equals(name))
{
return typeDef;
}
else if(typeDef instanceof XSComplexTypeDefinition)
{
XSComplexTypeDefinition complexTypeDef = (XSComplexTypeDefinition)typeDef;
if(name!=null)
{
String typeKey = namespace+":"+name;
if(scannedItems.contains(typeKey))
{
return null;
}
else
{
scannedItems.add(typeKey);
}
}
// An XOP parameter is detected if it is a complex type
// that derives from xsd:base64Binary
if (complexTypeDef.getSimpleType() != null)
{
String typeName = complexTypeDef.getSimpleType().getName();
if (BASE64_BINARY.equals(typeName))
return complexTypeDef;
}
else
{
XSModelGroup xm = null;
if(complexTypeDef.getContentType() != XSComplexTypeDefinition.CONTENTTYPE_EMPTY)
{
XSParticle xp = complexTypeDef.getParticle();
if (xp != null)
{
XSTerm xterm = xp.getTerm();
if(xterm instanceof XSModelGroup)
{
xm = (XSModelGroup)xterm;
//System.out.println("xm -> " + xm);
XSObjectList xo = xm.getParticles();
// interate over nested particles
for(int i=0; i<xm.getParticles().getLength(); i++ )
{
XSTerm xsterm = ((XSParticle)xo.item(i)).getTerm();
// Can be either XSModelGroup, XSWildcard, XSElementDeclaration
// We only proceed with XSElementDeclaration
if(xsterm instanceof XSElementDeclaration)
{
XSElementDeclaration xe = (XSElementDeclaration)xsterm;
XSTypeDefinition nestedTypeDef = xe.getTypeDefinition();
//System.out.println("Query nested -> " + xe.getName());
result = findXOPTypeDef(nestedTypeDef);
}
}
}
}
}
}
//System.out.println("result -> " + result);
}
return result;
}
public void reset()
{
scannedItems.clear();
}
}