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using MediaBrowser.Common.Net;
using System;
using System.Threading.Tasks;
namespace MediaBrowser.Common.Kernel
{
/// <summary>
/// Represents a class that is notified everytime the server receives a message over a WebSocket
/// </summary>
/// <typeparam name="TKernelType">The type of the T kernel type.</typeparam>
public abstract class BaseWebSocketListener<TKernelType> : IWebSocketListener
where TKernelType : IKernel
{
/// <summary>
/// The null task result
/// </summary>
protected Task NullTaskResult = Task.FromResult(true);
/// <summary>
/// Gets the kernel.
/// </summary>
/// <value>The kernel.</value>
protected TKernelType Kernel { get; private set; }
/// <summary>
/// Initializes the specified kernel.
/// </summary>
/// <param name="kernel">The kernel.</param>
public virtual void Initialize(IKernel kernel)
{
if (kernel == null)
{
throw new ArgumentNullException("kernel");
}
Kernel = (TKernelType)kernel;
}
/// <summary>
/// Processes the message.
/// </summary>
/// <param name="message">The message.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">message</exception>
public Task ProcessMessage(WebSocketMessageInfo message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
return ProcessMessageInternal(message);
}
/// <summary>
/// Processes the message internal.
/// </summary>
/// <param name="message">The message.</param>
/// <returns>Task.</returns>
protected abstract Task ProcessMessageInternal(WebSocketMessageInfo message);
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <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>
/// Interface IWebSocketListener
/// </summary>
public interface IWebSocketListener : IDisposable
{
/// <summary>
/// Processes the message.
/// </summary>
/// <param name="message">The message.</param>
/// <returns>Task.</returns>
Task ProcessMessage(WebSocketMessageInfo message);
/// <summary>
/// Initializes the specified kernel.
/// </summary>
/// <param name="kernel">The kernel.</param>
void Initialize(IKernel kernel);
}
}
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