How to pass Proxy user dynamically in Toplink proxy authentication?

Hi,
I'm using Toplink Proxy Authentication with my ADF JSF application and want to pass the Proxy user dynamically to the preLogin(..) method of mySessionEventListener (Currently proxy user is hard coded).
This is to make my application user as the Proxy user.
I have tried to do this in two ways:
1) In my Login screen Backing Bean, I retrieve the session as
session = sessionFactory.acquireSession(); and set the application user in it as
session.setProperty("proxyUser1", inputText1.getValue());
But,
session.getProperty("proxyUser1") returns null in the preLogin(..) method
2) I add a loginUser property to the mySessionEventListener class and create a constructor to set it.
Then I call the constructor from my Login Backing Bean as
mySessionEventListener eventMgr = new mySessionEventListener(<proxy_user>);
session.getEventManager().addListener( eventMgr );
But, the loginUser property seeems to be transient and does not retain value when retrieved in preLogin(..) method.
Please indicate if anything is wrong. Also, is there any other way to get this done?
Thanks in advance.
Vikas

Hi Vikas,
Probably your sessions.xml defines a ServerSession, and acquireSession method returns a ClientSession. ServerSession is the object that connects to the database, it may have any number of ClientSessions associated with it - all of them use connections provided by ServerSession's connection pools.
So if you'd like to alter the serverSession before login, acquireSession is too late - it triggers login of the ServerSession and returns a ClientSession.
To get the ServerSession before login:
// the first param indicates that the session shouldn't be connected
Session serverSession = sessionFactory.getSharedSession(false, false);Now you have a serverSession on which login hasn't been called yet.
You can set the property into the session, or directly into its login.
In fact you may choose to do whatever you wanted to do in preLogin right here - in this case no preLogin event would be required of course.
Finally to get a ClientSession, call the same api did:
// the first param indicates that the session shouldn't be connected
Session clientSession = sessionFactory.getSession();On the first such call the ServerSession will be connected.
Note that because all the ClientSessions will connect through the connections provided by the same ServerSession they will all use proxyUser1.
If you are interested in using different proxy users for different ClientSessions http://www.oracle.com/technology/products/ias/toplink/doc/1013/main/_html/dblgcfg008.htm#BABDABCF lists several scenarios for that.
Andrei

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                                item["Login_Date"] = System.DateTime.Now;
                                item["Login_Status"] = LoginStatus.ToString();
                                item.Update();
                                web1.AllowUnsafeUpdates = false;
                                web1.Dispose();
                                oSite.Dispose();
                catch (Exception ex)
            #endregion
            #region MD5Encryption
            private string MD5Encryption(string strToEncrypt)
                System.Text.UTF8Encoding ue = new System.Text.UTF8Encoding();
                byte[] bytes = ue.GetBytes(strToEncrypt);
                // encrypt bytes
                System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
                byte[] hashBytes = md5.ComputeHash(bytes);
                // Convert the encrypted bytes back to a string (base 16)
                string hashString = "";
                for (int i = 0; i < hashBytes.Length; i++)
                    hashString += Convert.ToString(hashBytes[i], 16).PadLeft(2, '0');
                return hashString.PadLeft(32, '0');
            #endregion
            #region Generate Random Code
            private string GenerateRandomCode()
                random = new Random();
                string s = "";
                for (int i = 0; i <= 6; i++)
                    s = string.Concat(s, this.random.Next(10).ToString());
               // _randomNumbercheck = s;
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            public string GenerateHashKey()
                StringBuilder myStr = new StringBuilder();
                myStr.Append(Request.Browser.Browser);
                myStr.Append(Request.Browser.Platform);
                myStr.Append(Request.Browser.MajorVersion);
                myStr.Append(Request.Browser.MinorVersion);
                myStr.Append(Request.LogonUserIdentity.User.Value);
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                int CheckValue = 0;
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                cmd.Parameters.Add("@Password", SqlDbType.NVarChar, 300).Value = HPassword.ToString();
                cmd.Parameters.Add("@CheckVal", SqlDbType.Int).Value = CheckValue;
                cmd.Parameters.Add(new SqlParameter("@P_Return", SqlDbType.NVarChar, 256));
                cmd.Parameters["@P_Return"].Direction = ParameterDirection.Output;
                cmd.ExecuteNonQuery();
                string CurrentUserName = cmd.Parameters["@P_Return"].Value.ToString();
                cmd.Dispose();
                con.Close();
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                    string UserName = Session["User"].ToString();
                    UserCurrent = UserName;
                    LoginStatus = "Successfull";
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                    e.Authenticated = true;
                    //Session["CustomAuthKey"] = MD5Encryption(Request.ServerVariables["Remote_Addr"] + Request.ServerVariables["Http_Cookie"] + Request.ServerVariables["Auth_User"]);
                    Session["CustomAuthKey"] = MD5Encryption(Request.ServerVariables["Remote_Addr"] + Request.ServerVariables["Http_Cookie"] + UserCurrent.ToString());
                    FormsAuthenticationTicket tkt;
                    String cookiestr;
                    HttpCookie ck;
                    tkt = new FormsAuthenticationTicket(1, UserName, DateTime.Now, DateTime.Now.AddMinutes(15), false, GenerateHashKey());
                    cookiestr = FormsAuthentication.Encrypt(tkt);
                    ck = new HttpCookie(FormsAuthentication.FormsCookieName, cookiestr);
                    ck.Path = FormsAuthentication.FormsCookiePath;
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                Login.FailureText = "Your login attempt was not successful. Please try again.";
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                    if (usrInfo.IsLockedOut)
                        Login.FailureText = "Your account has been locked out because of too many invalid login attempts. Please contact the administrator to have your account unlocked.";
                    else if (!usrInfo.IsApproved)
                        Login.FailureText = "Your account has not yet been approved. You cannot login until an administrator has approved your account.";
                    else
                        Login.FailureText = "Invalid UserName / Password";
                        UserCurrent = usrInfo.UserName;
                        LoginStatus = "UnSucessfull";
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                    Login.FailureText = "Invalid UserName / Password";
            #endregion
            #region Logged In
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                string UserName = Session["User"].ToString();           
                LoginControl.Class1.IsLoggedIn = true;
                //If User Email is [email protected] it will be invalid. Prompt the user to update the email id. 
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                string email;
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