PerRequestLifetimeManager.cs

  /// <summary>
    /// Represents a lifetime manager for request base life time management
    /// </summary>
    public class PerRequestLifetimeManager : LifetimeManager
    {
        #region Members

        private LifetimeManager _WrappedLifetimeManager;

        #endregion

        #region Public Methods

        /// <summary>
        /// Gets value
        /// </summary>
        /// <returns></returns>
        public override object GetValue()
        {
            EnsureLifetimeManager();
            return _WrappedLifetimeManager.GetValue();
        }

        /// <summary>
        /// Remove value
        /// </summary>
        public override void RemoveValue()
        {
            EnsureLifetimeManager();
            _WrappedLifetimeManager.RemoveValue();
        }

        /// <summary>
        /// Sets value
        /// </summary>
        /// <param name="newValue"></param>
        public override void SetValue(object newValue)
        {
            EnsureLifetimeManager();
            _WrappedLifetimeManager.SetValue(newValue);
        }

        #endregion

        #region Private Methods

        /// <summary>
        /// Ensures that lifetime manager which is wrapped is created
        /// </summary>
        private void EnsureLifetimeManager()
        {
            if (_WrappedLifetimeManager == null)
            {
                if (HttpContext.Current != null)
                {
                    _WrappedLifetimeManager = new PerWebRequestLifetimeManager();
                }
                else if (OperationContext.Current != null)
                {
                    _WrappedLifetimeManager = new PerWCFRequestLifetimeManager();
                }
                else
                {
                    _WrappedLifetimeManager = new PerCallContextLifetimeManager();
                }
            }
        }

        #endregion
    }