authentication - Implementing a SAML SSO in Java -

authentication - Implementing a SAML SSO in Java -

i have application (appa) needs access url on application (appb).

appb service provider , has identity provider.

i want create automatic way of application accessing url's @ appa.

i know in saml protocol after service provider gives user(in case app) authentication url user required sign in user password. wanted know if there's generic way of implementing sign or must implement post request user , password have?

in saml world have identity decision point (idp), policy decision point (pdp) , policy enforcement point (pep) , service, want call. idp provides authentication in way user can proof identity. pdp trust idp , decide level of authorization user wil providing valid idp document. pep allow or deny access service based on pdp document.

the general flow contact service phone call straight causes not authorized response. result should include info accepted pdps. next pdp called, provide info idps accepted.the client contacts idp , authentication on behalf of user. resulting document, signed idp passed pdp. signed response pdp passed service again. service 10 contacts pep document.

in real world points may not single instances merged. service may include pep, or idp can pdp too.

so have @ architecture/infrastructure.

java authentication saml