ResultsController.cs :  » Network-Clients » TweetSharp » Twintimidator » Results » C# / CSharp Open Source

#region License

// TweetSharp
// Copyright (c) 2010 Daniel Crenna and Jason Diller
// 
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Twintimidator.Results{
    /// <summary>
    /// threadsafe bucket of results 
    /// </summary>
    internal class ResultsController : IResultsController
    {
        private readonly IList<string> _errors = new List<string>();
        private readonly object _errorsLock = new object();
        private int _failCount;
        private int _successCount;

        #region IResultsController Members

        public event EventHandler ResultsUpdated;

        public void AddError(string source, string message)
        {
            lock (_errorsLock)
            {
                _errors.Add(string.Format("{0}:{1}", source, message));
            }
            OnResultsUpdated(EventArgs.Empty);
        }

        public int ExpectedNumberOfResults { get; set; }

        public int NumberOfResultsRecieved
        {
            get { return _successCount + _failCount; }
        }

        public int Failures
        {
            get { return _failCount; }
        }

        public int Successes
        {
            get { return _successCount; }
        }

        public void IncrementSuccessCount()
        {
            Interlocked.Increment(ref _successCount);
            OnResultsUpdated(EventArgs.Empty);
        }

        public void IncrementFailureCount()
        {
            Interlocked.Increment(ref _failCount);
            OnResultsUpdated(EventArgs.Empty);
        }

        public IEnumerable<string> Errors
        {
            get
            {
                lock (_errorsLock)
                {
                    return _errors.AsEnumerable();
                }
            }
        }

        #endregion

        protected virtual void OnResultsUpdated(EventArgs e)
        {
            if (ResultsUpdated != null)
            {
                ResultsUpdated(this, e);
            }
        }
    }
}