OpenSAML user discussion

[Chad La Joie <>]

Works fine for me.  Here's what I did.  I took your xml snippet and 
added a namespace declaration for "saml" (so that it's valid XML), then 
unmarshalled it with the attached unit test.  Here's the output I got.

Attribute Name: eduPersonAffiliation
AttributeValue class type: org.opensaml.xml.ElementProxy
AttributeValue value: member
AttributeValue class type: org.opensaml.xml.ElementProxy
AttributeValue value: student
AttributeValue class type: org.opensaml.xml.ElementProxy
AttributeValue value: faculty
AttributeValue class type: org.opensaml.xml.ElementProxy
AttributeValue value: employee
AttributeValue class type: org.opensaml.xml.ElementProxy
AttributeValue value: staff

Manuela Stanica wrote:
> Hi Chad,
> > Given the error you've encountered I'd guess that the attribute value 
> > you're trying to read does not have a schema instance type attribute 
> > and that AttributeValue isn't registered or is specifically registered 
> > to use the ElementProxy element.
> The metadata document example that I'm using for testing is taken out of 
> the OASIS specification for SAML 2 metadata, here is the concerned section:
> <saml:Attribute
> NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"
> Name="urn:oid:1.3.6.1.4.1.5923.1.1.1.1"
> FriendlyName="eduPersonAffiliation">
> <saml:AttributeValue>member</saml:AttributeValue>
> <saml:AttributeValue>student</saml:AttributeValue>
> <saml:AttributeValue>faculty</saml:AttributeValue>
> <saml:AttributeValue>employee</saml:AttributeValue>
> <saml:AttributeValue>staff</saml:AttributeValue>
> </saml:Attribute>
>
> Could you please give me a hint on how to read these values?
>
> Thanks,
> Manuela
>
>
>
> > Manuela Stanica wrote:
> > > Hi,
> > >
> > > I noticed that the openSAML2 and XMLTooling code compiles again, great!
> > > I still have a question though concerning AttributeValues. I haven't 
> > > found out yet how I can read the value of an <AttributeValue>. It 
> > > looks like there have been some changes made around this, are they 
> > > documented somewhere? I've looked into the code and found an example 
> > > of how I could read this value and tried to do the same in my code, 
> > > but it doesn't seem to work.
> > > I have something like:
> > >                    List<XMLObject> attrValList = 
> > > idpDescr.getAttributes().get(i).getAttributeValues();
> > >                    for(int n=0; n<attrValList.size(); n++){
> > >                        XSString value = (XSString) attrValList.get(n);
> > >                        String val = value.getValue();
> > >                         .............................
> > >                    }
> > > Here I get a  java.lang.ClassCastException: 
> > > org.opensaml.xml.ElementProxy  when trying to do the casting to 
> > > XSString.
> > > So how can I get to my AttributeValues..?
> > >
> > > Cheers,
> > > Manuela

--
Chad La Joie             2052-C Harris Bldg
OIS-Middleware           202.687.0124
/*
 * Copyright [2006] [University Corporation for Advanced Internet 
Development, Inc.]
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package org.opensaml.saml2.core.impl;

import java.io.InputStream;
import java.util.List;

import org.opensaml.common.SAMLObjectTestCaseConfigInitializer;
import org.opensaml.common.xml.ParserPoolManager;
import org.opensaml.saml2.core.Attribute;
import org.opensaml.xml.Configuration;
import org.opensaml.xml.ElementProxy;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.io.Unmarshaller;
import org.opensaml.xml.io.UnmarshallingException;
import org.w3c.dom.Document;

public class AttributeValueTest extends SAMLObjectTestCaseConfigInitializer {
    
    private String dataFile = 
"/data/org/opensaml/saml2/core/impl/AttributeValue.xml";
    
    private Document samlDom;
    
    protected void setUp() throws Exception {
        super.setUp();

        ParserPoolManager ppMgr = ParserPoolManager.getInstance();
        
        InputStream dataIn = 
AttributeValueTest.class.getResourceAsStream(dataFile);
        samlDom = ppMgr.parse(dataIn);
    }
    
    public void testUnmarshall(){
        //Get the unmarshaller for the document root element, Attribute
        Unmarshaller unmarshaller = 
Configuration.getUnmarshallerFactory().getUnmarshaller(samlDom.getDocumentElement());
        
        try {
            Attribute attribute = (Attribute) 
unmarshaller.unmarshall(samlDom.getDocumentElement());
            System.out.println("Attribute Name: " + 
attribute.getFriendlyName());
            
            List<XMLObject> attributeValues = attribute.getAttributeValues();
            for(XMLObject attributeValue : attributeValues){
                System.out.println("AttributeValue class type: " + 
attributeValue.getClass().getName());
                System.out.println("AttributeValue value: " + 
((ElementProxy)attributeValue).getTextContent());
            }
        } catch (UnmarshallingException e) {
            fail("Unable to unmarshall document: " + e);
            e.printStackTrace();
        }
    }
}