OpenSAML user discussion

[Chad La Joie <>]

Did you register you object provider classes in the XML tooling 
configuration file?

https://spaces.internet2.edu/display/SHIB/OSTwoDevManJavaConfigurationFile


 wrote:
> Hi all,
>
> Within the framework of my engineering school and my internship at the 
> University of Amsterdam, I am working on a project about SAML2.0 and the 
> library opensaml2.0.
>
> In a first step, I implemented the opensaml2.0 library successfully by using 
> the
> Web site and documentations. And now, I try to implement the SAML 2.0 profile 
> of
> XACML 2.0.
>
> I would like to construct an <saml:Statement 
> xsi:type"xacml-saml:XACMLAuthzDecisionStatementType"> and (in the future) an <saml:Statement 
> xsi:type"xacml-saml:XACMLPolicyStatementType"> in order to get
> something like that :
>  <choice minOccurs="0" maxOccurs="unbounded">    
>      <element ref="saml:Statement"/>
>          <XACMLAuthzDecisionStatement with request and response> or
>          <XACMLPolicyStatement with policy and policySet>
>      <element ref="saml:AuthnStatement"/>
>      <element ref="saml:AuthzDecisionStatement"/>
>      <element ref="saml:AttributeStatement"/>
>  </choice>
>  
> First, I created a new SAML Object XACMLAuthzDecisionStatement with 
>  - the interface, 
>  - the implementation, 
>  - the builder, 
>  - the marshaller and 
>  - the unmarshaller (like on the openSAML manual
>  https://spaces.internet2.edu/display/SHIB/OSTwoDeveloperManual). I added 
> these java programs in my opensaml2.0 library (saml2.core for the first and 
> saml2.core.impl for the others).
>
> I used an element QName to create the SAML Object. But, I have a problem and 
> I think it is here (XACMLAuthzDecisionStatement.java) :
>   /** Element local name. */
>   public static final String DEFAULT_ELEMENT_LOCAL_NAME = 
> "XACMLAuthzDecisionStatement";
>  
>   /** Default element name. */
>   public static final QName DEFAULT_ELEMENT_NAME = new QName( 
> SAMLConstants.SAML20_NS,DEFAULT_ELEMENT_LOCAL_NAME,SAMLConstants.SAML20_PREFIX);
>  
>   /** Local name of the XSI type. */
>   public static final String TYPE_LOCAL_NAME = 
> "XACMLAuthzDecisionStatementType";
>  
>   /** QName of the XSI type. */
>   public static final QName TYPE_NAME = new QName(SAMLConstants.SAML20_NS,
> TYPE_LOCAL_NAME, SAMLConstants.SAML20_PREFIX);
>  
> It's the same thing in the other files. I don't know what I have to make or modify (for example in the SAMLConstants.java file and schemas).
>
> Then, when I integrate this new object in my Java program, I always have the 
> same error (java.lang.NullPointerException). I think the problem comes that 
> my program doesn't know the new type (XACMLAuthzDecisionStatementType).
>
>  // Get the builder factory  
>  XMLObjectBuilderFactory builderFactory =  org.opensaml.xml.Configuration.getBuilderFactory();
>  
>  //===> Error XACMLAuthzDecisionStatementBuilder
>  XACMLAuthzDecisionStatementBuilder xacmlauthz=
> (XACMLAuthzDecisionStatementBuilder)builderFactory.getBuilder(XACMLAuthzDecisionStatement.DEFAULT_ELEMENT_NAME);
>  
>  //Use XACMLAuthzDecisionStatement
>  XACMLAuthzDecisionStatement objectxacmlauthz = xacmlauthz.buildObject();
>  
> For information, I don't use schemas, I just try to get a SAML2.0 XML file
> (profile of XACML 2.0).
>
> I hope that you can give me some advices and I thank you in advance for your 
> help.
>
> Yours faithfully,
>
> RAYNAL Sylvain

--
Chad La Joie             2052-C Harris Bldg
OIS-Middleware           202.687.0124