narsil/Tanshu.Accounts.BI/MembershipBI.cs

using System;
using System.Collections.Generic;
//using System.Linq;
using System.Text;
using System.Data.SqlClient;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.DAOFactory;
using Tanshu.Data.DAO;

namespace Tanshu.Accounts.BI
{
    public class MembershipBI : IMembershipBI
    {
        public bool ValidateUser(string name, string password)
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                {
                    return dao.ValidateUser(name, password);
                }
            }
        }

        public void AddUsersToRoles(string[] usernames, string[] roleNames)
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                {
                    dao.AddUsersToRoles(usernames, roleNames);
                }
            }
        }

        public string[] GetAllRoles()
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (var dao = factory.GetMembershipDAO(connection))
                {
                    return dao.GetAllRoles();
                }
            }
        }

        public string[] GetRolesForUser(string username)
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                {
                    return dao.GetRolesForUser(username);
                }
            }
        }

        public bool IsUserInRole(string username, string roleName)
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                {
                    if (!dao.RoleExists(roleName))
                        throw new Exception(string.Format("Role {0} does not exist in the database", roleName));
                    return dao.IsUserInRole(username, roleName);
                }
            }
        }

        public bool IsUserInRole(Guid userID, string roleName)
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                {
                    if (!dao.RoleExists(roleName))
                        throw new Exception(string.Format("Role {0} does not exist in the database", roleName));
                    return dao.IsUserInRole(userID, roleName);
                }
            }
        }

        public void RemoveUsersFromRoles(string[] usernames, string[] roleNames)
        {
            if ((roleNames.Length > 0) || (usernames.Length > 0))
            {
                var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
                using (var connection = factory.Connection)
                {
                    using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                    {
                        dao.RemoveUsersFromRoles(usernames, roleNames);
                    }
                }
            }
        }

        public UserBO GetUserFromName(string name)
        {
            var factory = GetFactory.GetDAOFactory(Database.GetFactoryType);
            using (var connection = factory.Connection)
            {
                using (IMembershipDAO dao = factory.GetMembershipDAO(connection))
                {
                    return dao.GetUserFromName(name);
                }
            }
        }
    }
}