Пример #1
0
        /// <summary>
        /// Clears component state.
        /// </summary>
        private void Cleanup()
        {
            if (this._timeout == 0)
            {
                return;
            }

            long cutOffTime = DateTimeOffset.Now.ToUnixTimeMilliseconds() - _timeout;

            // Cleanup obsolete entries
            foreach (var prop in this._states.Keys)
            {
                StateEntry entry = this._states[prop];
                // Remove obsolete entry
                if (entry.GetLastUpdateTime() < cutOffTime)
                {
                    _states.Remove(prop);
                }
            }
        }
Пример #2
0
        /// <summary>
        /// Loads state from the store using its key.
        /// If value is missing in the store it returns null.
        /// </summary>
        /// <param name="correlationId">(optional) transaction id to trace execution through call chain.</param>
        /// <param name="key">a unique state key.</param>
        /// <returns>the state value or null if value wasn't found.</returns>
        public async Task <T> LoadAsync <T>(string correlationId, string key)
        {
            if (key == null)
            {
                throw new Exception("Key cannot be null");
            }

            // Cleanup the stored states
            Cleanup();

            // Get entry from the store
            StateEntry entry = _states.ContainsKey(key) ? _states[key] : null;

            // Store has nothing
            if (entry == null)
            {
                return(default(T));
            }

            return(entry.GetValue());
        }