jellyfin-server/MediaBrowser.Common.Implementations/WebSocket/AlchemyWebSocket.cs
2013-02-26 16:05:52 -05:00

133 lines
4.1 KiB
C#

using Alchemy.Classes;
using MediaBrowser.Common.Net;
using MediaBrowser.Model.Logging;
using System;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Common.Implementations.WebSocket
{
/// <summary>
/// Class AlchemyWebSocket
/// </summary>
public class AlchemyWebSocket : IWebSocket
{
/// <summary>
/// The logger
/// </summary>
private readonly ILogger _logger;
/// <summary>
/// Gets or sets the web socket.
/// </summary>
/// <value>The web socket.</value>
private UserContext UserContext { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="AlchemyWebSocket" /> class.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="logger">The logger.</param>
/// <exception cref="System.ArgumentNullException">context</exception>
public AlchemyWebSocket(UserContext context, ILogger logger)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
_logger = logger;
UserContext = context;
context.SetOnDisconnect(OnDisconnected);
context.SetOnReceive(OnReceive);
_logger.Info("Client connected from {0}", context.ClientAddress);
}
/// <summary>
/// The _disconnected
/// </summary>
private bool _disconnected = false;
/// <summary>
/// Gets or sets the state.
/// </summary>
/// <value>The state.</value>
public WebSocketState State
{
get { return _disconnected ? WebSocketState.Closed : WebSocketState.Open; }
}
/// <summary>
/// Called when [disconnected].
/// </summary>
/// <param name="context">The context.</param>
private void OnDisconnected(UserContext context)
{
_disconnected = true;
}
/// <summary>
/// Called when [receive].
/// </summary>
/// <param name="context">The context.</param>
private void OnReceive(UserContext context)
{
if (OnReceiveDelegate != null)
{
var json = context.DataFrame.ToString();
if (!string.IsNullOrWhiteSpace(json))
{
try
{
var bytes = Encoding.UTF8.GetBytes(json);
OnReceiveDelegate(bytes);
}
catch (Exception ex)
{
_logger.ErrorException("Error processing web socket message", ex);
}
}
}
}
/// <summary>
/// Sends the async.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <param name="type">The type.</param>
/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendAsync(byte[] bytes, WebSocketMessageType type, bool endOfMessage, CancellationToken cancellationToken)
{
return Task.Run(() => UserContext.Send(bytes));
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
Dispose(true);
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool dispose)
{
}
/// <summary>
/// Gets or sets the receive action.
/// </summary>
/// <value>The receive action.</value>
public Action<byte[]> OnReceiveDelegate { get; set; }
}
}