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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="ServerService.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// HandBrake WCF Service
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrake.ApplicationServices.Services
{
using System;
using System.Collections.Generic;
using System.ServiceModel;
using System.Threading;
using HandBrake.ApplicationServices.Model;
using HandBrake.ApplicationServices.Services.Interfaces;
using EncodeCompletedEventArgs = HandBrake.ApplicationServices.EventArgs.EncodeCompletedEventArgs;
using EncodeProgressEventArgs = HandBrake.ApplicationServices.EventArgs.EncodeProgressEventArgs;
/// <summary>
/// HandBrake WCF Service
/// </summary>
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, IncludeExceptionDetailInFaults = true, ConcurrencyMode = ConcurrencyMode.Single)]
public class ServerService : IServerService
{
#region Constants and Fields
/// <summary>
/// List of connected Clients. For now, this should only be one.
/// </summary>
private static readonly List<IHbServiceCallback> Subscribers = new List<IHbServiceCallback>();
/// <summary>
/// The encode service.
/// </summary>
private static IEncode encodeService;
/// <summary>
/// The host.
/// </summary>
private static ServiceHost host;
/// <summary>
/// The shutdown flag.
/// </summary>
private static ManualResetEvent shutdownFlag;
#endregion
#region Properties
/// <summary>
/// Gets the activity log.
/// </summary>
public string EncodeActivityLog { get; private set; }
/// <summary>
/// Gets a value indicating whether is encoding.
/// </summary>
public bool IsEncoding { get; private set; }
/// <summary>
/// Gets the activity log.
/// </summary>
public string ScanActivityLog { get; private set; }
#endregion
#region Implemented Interfaces
#region IServerService
/// <summary>
/// The process encode logs.
/// </summary>
/// <param name="destination">
/// The destination.
/// </param>
public void ProcessEncodeLogs(string destination)
{
encodeService.ProcessLogs(destination);
}
/// <summary>
/// Start the service
/// </summary>
/// <param name="port">
/// The port.
/// </param>
public void Start(string port)
{
using (host = new ServiceHost(typeof(ServerService), new Uri(string.Format("net.tcp://127.0.0.1:{0}", port))))
{
// Setup a listener
host.AddServiceEndpoint(typeof(IServerService), new NetTcpBinding(), "IHbService");
host.Open();
Console.WriteLine("::: HandBrake Isolation Server - Debug Console:::");
Console.WriteLine("Service Started. Waiting for Clients...");
// Setup the services we are going to use.
encodeService = new LibEncode(new UserSettingService()); // TODO this needs wired up with castle
shutdownFlag = new ManualResetEvent(false);
shutdownFlag.WaitOne();
}
}
/// <summary>
/// Start and Encode
/// </summary>
/// <param name="job">
/// The job.
/// </param>
/// <param name="enableLogging">
/// The enable logging.
/// </param>
public void StartEncode(QueueTask job, bool enableLogging)
{
Console.WriteLine("Starting Source Encode for: " + job.Task.Source);
encodeService.EncodeCompleted += this.EncodeServiceEncodeCompleted;
encodeService.EncodeStarted += this.encodeService_EncodeStarted;
encodeService.EncodeStatusChanged += this.encodeService_EncodeStatusChanged;
encodeService.Start(job, enableLogging);
}
/// <summary>
/// Stop this service
/// </summary>
public void Stop()
{
if (host != null)
{
host.BeginClose(null, null);
// host.Abort();
shutdownFlag.Set();
}
}
/// <summary>
/// Stop and Encode
/// </summary>
public void StopEncode()
{
encodeService.Stop();
}
/// <summary>
/// The subscribe.
/// </summary>
/// <returns>
/// The System.Boolean.
/// </returns>
public bool Subscribe()
{
try
{
// Get the hashCode of the connecting app and store it as a connection
var callback = OperationContext.Current.GetCallbackChannel<IHbServiceCallback>();
if (!Subscribers.Contains(callback))
{
Console.WriteLine("Client Connected");
Subscribers.Add(callback);
}
return true;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return false;
}
}
/// <summary>
/// The unsubscribe.
/// </summary>
/// <returns>
/// The System.Boolean.
/// </returns>
public bool Unsubscribe()
{
try
{
var callback = OperationContext.Current.GetCallbackChannel<IHbServiceCallback>();
if (Subscribers.Contains(callback))
{
Subscribers.Remove(callback);
if (Subscribers.Count == 0)
{
Console.WriteLine("Client Disconnected, Shutting down...");
// Shutdown the service. We no longer have any clients to serve.
// It is the responsibility of the UI to maintain a subscription while this service is in use.
this.Stop();
}
}
return true;
}
catch
{
return false;
}
}
#endregion
#endregion
#region Methods
/// <summary>
/// The encode service_ encode completed.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void EncodeServiceEncodeCompleted(object sender, EncodeCompletedEventArgs e)
{
encodeService.EncodeCompleted -= this.EncodeServiceEncodeCompleted;
encodeService.EncodeStarted -= this.encodeService_EncodeStarted;
encodeService.EncodeStatusChanged -= this.encodeService_EncodeStatusChanged;
Subscribers.ForEach(
delegate(IHbServiceCallback callback)
{
if (((ICommunicationObject)callback).State == CommunicationState.Opened)
{
Console.WriteLine("Encode Completed Callback");
callback.EncodeCompletedCallback(e);
}
else
{
Subscribers.Remove(callback);
}
});
}
/// <summary>
/// The encode service_ encode started.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void encodeService_EncodeStarted(object sender, EventArgs e)
{
Subscribers.ForEach(
delegate(IHbServiceCallback callback)
{
if (((ICommunicationObject)callback).State == CommunicationState.Opened)
{
Console.WriteLine("Encode Started Callback");
callback.EncodeStartedCallback();
}
else
{
Subscribers.Remove(callback);
}
});
}
/// <summary>
/// The encode service_ encode status changed.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void encodeService_EncodeStatusChanged(object sender, EncodeProgressEventArgs e)
{
Subscribers.ForEach(
delegate(IHbServiceCallback callback)
{
if (((ICommunicationObject)callback).State == CommunicationState.Opened)
{
Console.WriteLine("Encode Status Callback");
callback.EncodeProgressCallback(e);
}
else
{
Subscribers.Remove(callback);
}
});
}
#endregion
}
}
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