private XElement ParseOutCredentials()

in apps/samplecode/automotive/apisamples/Microsoft.Dynamics.Automotive.Samples/helpercode/CrmServiceHelpers.cs [1140:1213]
69 lines of code
12 McCabe index (conditional complexity)

        private XElement ParseOutCredentials(ClientCredentials clientCredentials, 
            AuthenticationProviderType endpointType, String target)
        {
            if (clientCredentials != null)
            {
                Credential cred = CredentialManager.ReadCredentials(target);
                switch (endpointType)
                {
                    case AuthenticationProviderType.ActiveDirectory:
                        if (cred == null)
                        {
                            // Add entry in windows credential manager for future use.
                            if (!String.IsNullOrWhiteSpace(clientCredentials.Windows.ClientCredential.Password))
                            {
                                CredentialManager.WriteCredentials(target,
                                    new Credential(clientCredentials.Windows.ClientCredential.Domain + "\\"
                                        + clientCredentials.Windows.ClientCredential.UserName,
                                        clientCredentials.Windows.ClientCredential.Password),
                                    true);
                            }
                        }
                        else
                        { 
                            // Replace if the password has been changed.
                            if (!clientCredentials.Windows.ClientCredential.Password.Equals(cred.Password))
                            {
                                CredentialManager.DeleteCredentials(target, false);
                                CredentialManager.WriteCredentials(target,
                                    new Credential(clientCredentials.Windows.ClientCredential.Domain + "\\"
                                        + clientCredentials.Windows.ClientCredential.UserName,
                                        clientCredentials.Windows.ClientCredential.Password),
                                    true);
                            }
                        }
                        return new XElement("Credentials",
                            new XElement("UserName", clientCredentials.Windows.ClientCredential.UserName),
                            new XElement("Domain", clientCredentials.Windows.ClientCredential.Domain)
                            );
                    case AuthenticationProviderType.LiveId:                        
                    case AuthenticationProviderType.Federation:                        
                    case AuthenticationProviderType.OnlineFederation:
                        if (cred == null)
                        {
                            // Add entry in windows credential manager for future use.
                            if (!String.IsNullOrWhiteSpace(clientCredentials.UserName.Password))
                            {
                                CredentialManager.WriteCredentials(target,
                                    new Credential(clientCredentials.UserName.UserName,
                                        clientCredentials.UserName.Password),
                                    true);
                            }
                        }
                        else
                        {
                            // Replace if the password has been changed.
                            if (!clientCredentials.UserName.Password.Equals(cred.Password))
                            {
                                CredentialManager.DeleteCredentials(target, false);
                                CredentialManager.WriteCredentials(target,
                                   new Credential(clientCredentials.UserName.UserName,
                                       clientCredentials.UserName.Password),
                                   true);
                            }
                        }
                        return new XElement("Credentials",
                           new XElement("UserName", clientCredentials.UserName.UserName)
                           );
                    default:
                        break;
                }
            }          

            return new XElement("Credentials", "");
        }