/// <summary>
/// Set down stream end point
/// </summary>
/// <param name="handler"> </param>
public void SetChannel(IDownstreamHandler handler)
{
if (handler == null) throw new ArgumentNullException("handler");
_downStreamEndPoint = handler;
_channelContext = new PipelineDownstreamContext(this, _downStreamEndPoint);
_downstreamContexts.Last.Value.NextHandler = _channelContext;
}
/// <summary>
/// Initializes a new instance of the <see cref="DownstreamContext" /> class.
/// </summary>
/// <param name="mine">The mine.</param>
public DownstreamContext(IDownstreamHandler mine)
{
if (mine == null)
{
throw new ArgumentNullException("mine");
}
_mine = mine;
}
/// <summary>
/// Use an inversion of control container to find the dispatchers.
/// </summary>
/// <param name="rootContainer">Container adapter.</param>
/// <returns>this</returns>
public EventPipelineBuilder UseContainer(IRootContainer rootContainer)
{
if (rootContainer == null)
{
throw new ArgumentNullException("rootContainer");
}
_inner = new IocHandler(rootContainer);
return(this);
}
/// <summary>
/// Add a dispatcher which actually dispatches the commands.
/// </summary>
/// <param name="lastHandler">Last handler in the pipeline. Should invoke the correct command handler.</param>
public PipelineDispatcherBuilder Dispatcher(IDownstreamHandler lastHandler)
{
if (lastHandler == null)
{
throw new ArgumentNullException("lastHandler");
}
_lastHandler = lastHandler;
return(this);
}
/// <summary>
/// Use a custom dispatcher for identifying the subscribers.
/// </summary>
/// <param name="dispatcher">Custom dispatcher. </param>
/// <returns>this</returns>
/// <remarks>The events are sent in the <see cref="DispatchEvent"/> message, so just check the message variable in <see cref="IDownstreamHandler.HandleDownstream"/> method after that.</remarks>
public EventPipelineBuilder UseCustomDispatcher(IDownstreamHandler dispatcher)
{
if (dispatcher == null)
{
throw new ArgumentNullException("dispatcher");
}
_inner = dispatcher;
return(this);
}
public void RegisterDownstreamHandler(IDownstreamHandler handler)
{
if (handler == null)
throw new ArgumentNullException("handler");
if (handler is IChannel)
throw new InvalidOperationException(
"Channels will be registered by the framework, do not add them to the pipeline");
_downstreamHandlers.AddLast(handler);
}
/// <summary>
/// Register a downstream handler. Should start with the handler closest to the application and end with the handler which actually dispatches the message to the command handler.
/// </summary>
/// <param name="handler">The handler</param>
public void RegisterDownstream(IDownstreamHandler handler)
{
if (handler == null) throw new ArgumentNullException("handler");
var newContext = new DownstreamContext(handler);
if (_downstreamHandlers.Count > 0)
_downstreamHandlers[_downstreamHandlers.Count - 1].SetNext(newContext);
_downstreamHandlers.Add(newContext);
}
/// <summary>
/// Set down stream end point
/// </summary>
/// <param name="handler"> </param>
public void SetChannel(IDownstreamHandler handler)
{
if (handler == null)
{
throw new ArgumentNullException("handler");
}
_downStreamEndPoint = handler;
_channelContext = new PipelineDownstreamContext(this, _downStreamEndPoint);
_downstreamContexts.Last.Value.NextHandler = _channelContext;
}
/// <summary>
/// Register a downstream handler. Should start with the handler closest to the application and end with the handler which actually dispatches the message to the command handler.
/// </summary>
/// <param name="handler">The handler</param>
public void RegisterDownstream(IDownstreamHandler handler)
{
if (handler == null)
{
throw new ArgumentNullException("handler");
}
var newContext = new DownstreamContext(handler);
if (_downstreamHandlers.Count > 0)
{
_downstreamHandlers[_downstreamHandlers.Count - 1].SetNext(newContext);
}
_downstreamHandlers.Add(newContext);
}
/// <summary>
/// Add a new downstream handler
/// </summary>
/// <param name="handler">Handler to add</param>
/// <remarks>Downstream handlers takes care of everything sent from the client to the channel.</remarks>
public void AddDownstreamHandler(IDownstreamHandler handler)
{
// always link with channel handler (will be replaced when the pipe is filled with more handlers
// so that only the last handler has the channel as NextHandler).
var ctx = new PipelineDownstreamContext(this, handler) {NextHandler = _channelContext};
var last = _downstreamContexts.Last;
if (last != null)
{
_logger.Debug("Added downstream handler " + handler + " and linked it as next handler for " + last.Value);
last.Value.NextHandler = ctx;
}
else
{
_logger.Debug("Added downstream handler " + handler);
}
_downstreamContexts.AddLast(ctx);
}
/// <summary>
/// Add a new downstream handler
/// </summary>
/// <param name="handler">Handler to add</param>
/// <remarks>Downstream handlers takes care of everything sent from the client to the channel.</remarks>
public void AddDownstreamHandler(IDownstreamHandler handler)
{
// always link with channel handler (will be replaced when the pipe is filled with more handlers
// so that only the last handler has the channel as NextHandler).
var ctx = new PipelineDownstreamContext(this, handler)
{
NextHandler = _channelContext
};
var last = _downstreamContexts.Last;
if (last != null)
{
_logger.Debug("Added downstream handler " + handler + " and linked it as next handler for " + last.Value);
last.Value.NextHandler = ctx;
}
else
{
_logger.Debug("Added downstream handler " + handler);
}
_downstreamContexts.AddLast(ctx);
}
/// <summary>
/// Add an handler instance (singleton)
/// </summary>
/// <param name="handler">Must implement <see cref="IDownstreamHandler"/> and/or <see cref="IUpstreamHandler"/></param>
/// <remarks>Same instance will be used for all channels. Use the <see cref="IPipelineHandlerContext"/> to store any context information.</remarks>
public void AddDownstreamHandler(IDownstreamHandler handler)
{
this.downstreamHandlers.AddLast(new HandlerInformation <IDownstreamHandler>(handler));
}
public void SetChannel(IDownstreamHandler handler)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="DownstreamContext" /> class.
/// </summary>
/// <param name="mine">The mine.</param>
public DownstreamContext(IDownstreamHandler mine)
{
if (mine == null) throw new ArgumentNullException("mine");
_mine = mine;
}
public PipelineDownstreamContext(IPipeline pipeline, IDownstreamHandler myHandler)
{
_pipeline = pipeline;
_myHandler = myHandler;
}
/// <summary>
/// Add a dispatcher which actually dispatches the commands.
/// </summary>
/// <param name="lastHandler">Last handler in the pipeline. Should invoke the correct command handler.</param>
public PipelineDispatcherBuilder Dispatcher(IDownstreamHandler lastHandler)
{
if (lastHandler == null) throw new ArgumentNullException("lastHandler");
_lastHandler = lastHandler;
return this;
}
/// <summary>
/// Use an inversion of control container to find the dispatchers.
/// </summary>
/// <param name="rootContainer">Container adapter.</param>
/// <returns>this</returns>
public EventPipelineBuilder UseContainer(IRootContainer rootContainer)
{
if (rootContainer == null) throw new ArgumentNullException("rootContainer");
_inner = new IocHandler(rootContainer);
return this;
}
/// <summary>
/// Use a custom dispatcher for identifying the subscribers.
/// </summary>
/// <param name="dispatcher">Custom dispatcher. </param>
/// <returns>this</returns>
/// <remarks>The events are sent in the <see cref="DispatchEvent"/> message, so just check the message variable in <see cref="IDownstreamHandler.HandleDownstream"/> method after that.</remarks>
public EventPipelineBuilder UseCustomDispatcher(IDownstreamHandler dispatcher)
{
if (dispatcher == null) throw new ArgumentNullException("dispatcher");
_inner = dispatcher;
return this;
}
public PipelineDownstreamContext(IPipeline pipeline, IDownstreamHandler myHandler)
{
this.pipeline = pipeline;
this.myHandler = myHandler;
}
public PipelineDownstreamContext(IPipeline pipeline, IDownstreamHandler myHandler)
{
_pipeline = pipeline;
_myHandler = myHandler;
}
/// <summary>
/// Send a message down stream (from application to channel)
/// </summary>
/// <param name="handler">Handler to start with</param>
/// <param name="channelEvent">Event to send</param>
/// <remarks>
/// All handlers above the specified one will be ignored and not invoked.
/// </remarks>
public void SendDownstream(IDownstreamHandler handler, IChannelEvent channelEvent)
{
ChannelHandlerContext ctx = _contexts[handler];
handler.HandleDownstream(ctx, channelEvent);
}
