private AttributeStatement createSAMLAttributeStatement()

in modules/rampart-trust/src/main/java/org/apache/rahas/impl/SAMLTokenIssuer.java [528:580]
47 lines of code
8 McCabe index (conditional complexity)

    private AttributeStatement createSAMLAttributeStatement(Subject subject,
                                                            RahasData rahasData,
                                                            SAMLTokenIssuerConfig config)
            throws TrustException {
        Attribute[] attrs = null;
        if (config.getCallbackHandler() != null) {
            SAMLAttributeCallback cb = new SAMLAttributeCallback(rahasData);
            SAMLCallbackHandler handler = config.getCallbackHandler();
            try {
                handler.handle(cb);
                attrs = cb.getAttributes();
            } catch (SAMLException e) {
                throw new TrustException("unableToRetrieveCallbackHandler", e);
            }

        } else if (config.getCallbackHandlerName() != null
                && config.getCallbackHandlerName().trim().length() > 0) {
            SAMLAttributeCallback cb = new SAMLAttributeCallback(rahasData);
            SAMLCallbackHandler handler = null;
            MessageContext msgContext = rahasData.getInMessageContext();
            ClassLoader classLoader = msgContext.getAxisService().getClassLoader();
            Class cbClass = null;
            try {
                cbClass = Loader.loadClass(classLoader, config.getCallbackHandlerName());
            } catch (ClassNotFoundException e) {
                throw new TrustException("cannotLoadPWCBClass",
                        new String[]{config.getCallbackHandlerName()}, e);
            }
            try {
                handler = (SAMLCallbackHandler) cbClass.newInstance();
            } catch (Exception e) {
                throw new TrustException("cannotCreatePWCBInstance",
                        new String[]{config.getCallbackHandlerName()}, e);
            }
            try {
                handler.handle(cb);
            } catch (SAMLException e) {
                throw new TrustException("unableToRetrieveCallbackHandler", e);
            }
            attrs = cb.getAttributes();
        } else {
            //TODO Remove this after discussing
            Attribute attribute =
                    SAMLUtils.createAttribute("Name", "https://rahas.apache.org/saml/attrns", "Colombo/Rahas");

            attrs = new Attribute[]{attribute};
        }

        AttributeStatement attributeStatement = SAMLUtils.createAttributeStatement(subject, Arrays.asList(attrs));

        return attributeStatement;

    }