How to change SSO user's password: Get LDAP URL

Question

Hi,
I would like to add a 'change user SSO password' form to my BC4J application. The form's submit button fires an action that calls a PL/SQL package. This package receives 7 parameters, and uses de dbms_ldap package to change the user's password.
Parameters:
- LDAP Host
- LDAP Port
- User DN
- SSO Username
- Old Password
- New Password
- Retyped New Password (for confirmation)
I'm trying with a DataForwardAction event whose purpose is to get the user's account information and the LDAP location, but I can't get the LDAP Location (ClassCastException) and the SSOUsername (NullPointerException).
I'm using JDeveloper 10.1.2.0.0 (Build 1811)
My question is: ¿What am I doing wrong? ¿Is there any easier way to do this?
The code is below:
import javax.servlet.http.HttpServletRequest;
import oracle.adf.controller.struts.actions.DataActionContext;
import oracle.adf.controller.struts.actions.DataForwardAction;
import oracle.security.jazn.JAZNConfig;
import oracle.security.jazn.spi.ldap.LDAPJAZNProvider;
public class ChgPwdAction extends DataForwardAction
  public void onChange(DataActionContext ctx) throws Exception
    HttpServletRequest request = ctx.getHttpServletRequest();
    String host                = null;
    String port                = null;
    String userDN              = null;
    String SSOUsername         = null;
    String oldPwd              = null;
    String newPwd              = null;
    String confirmNewPwd       = null;
    try
      LDAPJAZNProvider ldapProvider = (LDAPJAZNProvider)JAZNConfig.getJAZNConfig().getJAZNProvider();
      host = ldapProvider.getJAZNConfig().getLocationURL().getHost();
      port = "" + ldapProvider.getJAZNConfig().getLocationURL().getPort();
    catch (ClassCastException e)
      //System.out.println(e);
      throw new Exception("Missing LDAP location");
    try
      userDN = request.getHeader("Osso-User-Dn");
    catch (NullPointerException e)
      //System.out.println(e);
      throw new Exception("Missing User DN.");
    SSOUsername   = request.getRemoteUser();
    oldPwd        = (String)request.getParameter("oldPwd");
    newPwd        = (String)request.getParameter("newPwd");
    confirmNewPwd = (String)request.getParameter("confirmNewPwd");
    request.setAttribute("Host", host);
    request.setAttribute("Port", port);
    request.setAttribute("UserDN", userDN);
    request.setAttribute("SSOUsername", SSOUsername);
    request.setAttribute("OldPwd", (String)ctx.getHttpServletRequest().getParameter("oldPwd"));
    request.setAttribute("NewPwd", (String)ctx.getHttpServletRequest().getParameter("newPwd"));
    request.setAttribute("ConfirmNewPwd", (String)ctx.getHttpServletRequest().getParameter("confirmNewPwd"));
    //System.out.println (userDN + "-" + SSOUsername);
  // To override a method of the lifecycle, go to
  // the main menu "Tools/Override Methods...".
}Thanks in advance.

Answer 1

Hi again,
First of all, thanks for your reply.
Yes, I know I can use JNDI instead of a call to a PL/SQL package (I visited this link: http://forum.java.sun.com/thread.jspa?threadID=592611&start=0 that explains how to do it), but in both cases I have the same problem: I don't know if it's possible to get the LDAP's environment specifications (PROVIDER_URL, SECURITY_PROTOCOL) dynamically.
Our production environment's LDAP is not the same as our development environment's LDAP. This is why I want to get this information dynamically.
I think that this information is stored in the jazn.xml file: Is there any way to get this information?
Thanks a lot.