OpenSAML user discussion

[Subash Devkota <>]

Thank you paul.

I had downloaded the opensaml-2.0-TP2-jdk-1.4.jar and used it.
It was the incomplet one. It didn't have

org.opensaml.DefaultBootstrap

class. As your advice, I pulled the latest code from  svn  and  your  
code worked and helped me a lot.

One question, I am using jdk1.5 as it says. I tried with jdk1.4.2 and 
gives the error java.lang.Iterable class not found.
Can I run OpenSAML in jkd1.4? Is it possbile with minor changes in code?

Thank You
Subash

Paul Hethmon wrote:
> A couple of things here:
>
> 1. Make sure you followed the steps to put the endorsed versions of
> Xalan and Xerces in place.
> 2. What you do next depends on which iteration of the library you are
> using. I'm using the latest revision from svn (at least updated in the
> last week) and here's some sample code which should compile and run:
>
> // -----
>     org.opensaml.DefaultBootstrap.bootstrap();
>
>     // Use the OpenSAML Configuration singleton to get a builder factory
> object
>     XMLObjectBuilderFactory builderFactory =
> org.opensaml.Configuration.getBuilderFactory();
>     // First get a builder for AuthnRequest
>     AuthnRequestBuilder arb = (AuthnRequestBuilder)
> builderFactory.getBuilder(AuthnRequest.DEFAULT_ELEMENT_NAME);
>     // And one for Issuer
>     IssuerBuilder ib = (IssuerBuilder)
> builderFactory.getBuilder(Issuer.DEFAULT_ELEMENT_NAME);
>     // And one for Subject
>     SubjectBuilder sb = (SubjectBuilder)
> builderFactory.getBuilder(Subject.DEFAULT_ELEMENT_NAME);
>     // build an AuthnRequest object
>     AuthnRequestImpl auth = (AuthnRequestImpl) arb.buildObject();
>     // Build the Issuer object
>     Issuer newIssuer = ib.buildObject();
>     newIssuer.setValue("MyIssuer");
>     auth.setIssuer(newIssuer);
>     auth.setProviderName("MyProviderName");
>     auth.setAssertionConsumerServiceURL("http://www.example.com";);
>     auth.setDestination("http://www.example.com";);
>     //auth.setAssertionConsumerServiceIndex(0);
>     //auth.setAttributeConsumingServiceIndex(0);
>     auth.setID("someuniqueidhere");
>     auth.setVersion(org.opensaml.common.SAMLVersion.VERSION_20);
>     DateTime dt = new DateTime();
>     auth.setIssueInstant(dt);
>     
>     
>     MarshallerFactory marshallerFactory =
> org.opensaml.Configuration.getMarshallerFactory();
>     
>     Marshaller marshaller = marshallerFactory.getMarshaller(auth);
>     
>     String msg = "";
>     Element authElement = null;
>     if (marshaller == null) {
>       msg = "unable to locate marshaller for [" +
> newIssuer.getElementQName() + "]";
>     } else {
>       authElement = marshaller.marshall(auth);
>     }
>     
>   DOMImplementationRegistry registry =
> DOMImplementationRegistry.newInstance();
>
>   DOMImplementationLS impl =
> (DOMImplementationLS)registry.getDOMImplementation("LS");
>
>   LSSerializer writer = impl.createLSSerializer();
>   String str = writer.writeToString(authElement);
>   str = str.replace("<", "&lt;");
>   str = str.replace(">", "&gt;");
> // ----- 
>
> It's not the greatest or prettiest, but it's something you can start
> with.
>
> Paul
>
>
>
> -----Original Message-----
> From: Subash Devkota [mailto:] 
> Sent: Thursday, January 25, 2007 7:59 AM
> To: 
>
> Subject: Help starting openSAML
>
> Hi all,
>
> I want to test and implement  openSAML API. I have got the jar and code.
>
> But, I am getting problem how to start using it. I could not find any
> good tutorial or example for simply creating  SAML objects and writing
> to xml.
>
> I found one example code from
> https://spaces.internet2.edu/display/SHIB/OSTwoUsrManJavaCreateFromScrat
> ch
> but got error using it.
>
>   
> > public static void main(String args[]) throws Exception{
> >       
> > //             Get the builder factory
> >           XMLObjectBuilderFactory builderFactory = 
> > Configuration.getBuilderFactory();
> >           
> >           // Get the subject builder based on the subject element name
> >           SubjectBuilder builder = (SubjectBuilder ) 
> > builderFactory.getBuilder(Subject.DEFAULT_ELEMENT_NAME);
> >           
> >           System.out.println("subject builder is :"+builder);
> >           // Create the subject
> >           Subject subject = (Subject)builder.buildObject();
> >     
> I got builder value in second step as null and get NullPointerException
> in third step as shown below:
>
>   
> > subject builder is :null
> > Exception in thread "main" java.lang.NullPointerException
> >     
>
> Can any one help me how to do it. Also, I would be grateful if anyone
> can show me the best example or tutorial for getting started with
> openSAML.
>
> Thanks in advance
> Subash 
>  
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