/// <summary>
/// Enables processing of HTTP Web requests by a custom HttpHandler that implements the <see cref="T:System.Web.IHttpHandler"/> interface.
/// </summary>
/// <param name="context">An <see cref="T:System.Web.HttpContext"/> object that provides references to the intrinsic server objects (for example, Request, Response, Session, and Server) used to service HTTP requests.</param>
public override void ProcessRequest(HttpContext context)
{
PollingResult result;
try
{
var session = GetSession(context);
result = session.HandlePollingRequest(context);
}
catch (Exception ex)
{
//Application should handle the request and give a valid result.
//Any exception is a sign that session is not valid anymore.
result = new LongPollingResult
{
type = "rpc",
name = "message",
success = false,
data = new DextopRemoteMethodCallException
{
exception = ex.Message,
type = "session"
}
};
}
context.Response.ContentType = "application/json";
DextopUtil.Encode(result, context.Response.Output);
}
internal LongPollingResult EndHandlingLongPollingRequest(IAsyncResult asyncResult, int start)
{
var result = new LongPollingResult
{
type = "rpc",
name = "message"
};
try
{
if (previousLongPollingResult != null && start < previousLongPollingResult.nextStart)
{
result = ((Func<LongPollingResult>)GetPreviousLongPollingResult).EndInvoke(asyncResult);
}
else
{
var msgs = messageQueue.EndTake(asyncResult);
result.nextStart = start + msgs.Count;
result.data = msgs;
result.success = true;
previousLongPollingResult = result;
}
}
catch (Exception ex)
{
result.success = false;
result.data = new DextopRemoteMethodCallException
{
type = "rpc",
exception = ex.Message,
stackTrace = ex.StackTrace
};
}
return result;
}
/// <summary>
/// Enables processing of HTTP Web requests by a custom HttpHandler that implements the <see cref="T:System.Web.IHttpHandler"/> interface.
/// </summary>
/// <param name="context">An <see cref="T:System.Web.HttpContext"/> object that provides references to the intrinsic server objects (for example, Request, Response, Session, and Server) used to service HTTP requests.</param>
public override void ProcessRequest(HttpContext context)
{
PollingResult result;
try
{
var session = GetSession(context);
result = session.HandlePollingRequest(context);
}
catch (Exception ex)
{
//Application should handle the request and give a valid result.
//Any exception is a sign that session is not valid anymore.
result = new LongPollingResult
{
type = "rpc",
name = "message",
success = false,
data = new DextopRemoteMethodCallException
{
exception = ex.Message,
type = "session"
}
};
}
context.Response.ContentType = "application/json";
DextopUtil.Encode(result, context.Response.Output);
}
internal LongPollingResult HandleLongPollingRequest(HttpContext context)
{
var result = new LongPollingResult
{
type = "rpc",
name = "message"
};
try
{
int start;
if (!int.TryParse(context.Request["start"], out start))
start = 0;
int nextStart;
var msgs = PopMessagesOrWait(start, out nextStart, TimeSpan.FromSeconds(20));
result.nextStart = nextStart;
result.data = msgs;
result.success = true;
}
catch (Exception ex)
{
result.success = false;
result.data = new DextopRemoteMethodCallException
{
type = "rpc",
exception = ex.Message,
stackTrace = ex.StackTrace
};
}
return result;
}
void IHttpAsyncHandler.EndProcessRequest(IAsyncResult asyncResult)
{
if (errorHandler != null)
{
errorHandler.EndInvoke(asyncResult);
}
else
{
LongPollingResult result;
try
{
result = session.EndHandlingLongPollingRequest(asyncResult, start);
}
catch (Exception ex)
{
Debug.WriteLine("Long polling exception.", ex);
//Application should handle the request and give a valid result.
//Any exception is a sign that session is not valid anymore.
result = new LongPollingResult
{
type = "rpc",
name = "message",
success = false,
data = new DextopRemoteMethodCallException
{
exception = ex.Message,
type = "session"
}
};
}
context.Response.ContentType = "application/json";
DextopUtil.Encode(result, context.Response.Output);
}
}
void IHttpAsyncHandler.EndProcessRequest(IAsyncResult asyncResult)
{
if (errorHandler != null)
{
errorHandler.EndInvoke(asyncResult);
}
else
{
LongPollingResult result;
try
{
result = session.EndHandlingLongPollingRequest(asyncResult, start);
}
catch (Exception ex)
{
Debug.WriteLine("Long polling exception.", ex);
//Application should handle the request and give a valid result.
//Any exception is a sign that session is not valid anymore.
result = new LongPollingResult
{
type = "rpc",
name = "message",
success = false,
data = new DextopRemoteMethodCallException
{
exception = ex.Message,
type = "session"
}
};
}
context.Response.ContentType = "application/json";
DextopUtil.Encode(result, context.Response.Output);
}
}
void WriteException(HttpContext context, Exception ex)
{
//Application should handle the request and give a valid result.
//Any exception is a sign that session is not valid anymore.
var result = new LongPollingResult
{
type = "rpc",
name = "message",
success = false,
data = new DextopRemoteMethodCallException
{
exception = ex.Message,
type = "session"
}
};
context.Response.ContentType = "application/json";
DextopUtil.Encode(result, context.Response.Output);
}
void WriteException(HttpContext context, Exception ex)
{
//Application should handle the request and give a valid result.
//Any exception is a sign that session is not valid anymore.
var result = new LongPollingResult
{
type = "rpc",
name = "message",
success = false,
data = new DextopRemoteMethodCallException
{
exception = ex.Message,
type = "session"
}
};
context.Response.ContentType = "application/json";
DextopUtil.Encode(result, context.Response.Output);
}
