public object Run(PerformContext context, IJobPerformer performer)
{
if (context == null) throw new ArgumentNullException("context");
if (performer == null) throw new ArgumentNullException("performer");
var filterInfo = GetFilters(context.Job);
try
{
return PerformJobWithFilters(context, performer, filterInfo.ServerFilters);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
var exceptionContext = new ServerExceptionContext(context, ex);
InvokeServerExceptionFilters(exceptionContext, filterInfo.ServerExceptionFilters);
if (!exceptionContext.ExceptionHandled)
{
throw;
}
}
return null;
}
public void Run(PerformContext context, IJobPerformer performer)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (performer == null)
{
throw new ArgumentNullException("performer");
}
var filterInfo = GetFilters(context.Job);
try
{
PerformJobWithFilters(context, performer, filterInfo.ServerFilters);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
var exceptionContext = new ServerExceptionContext(context, ex);
InvokeServerExceptionFilters(exceptionContext, filterInfo.ServerExceptionFilters);
if (!exceptionContext.ExceptionHandled)
{
throw;
}
}
}
private static void PerformJobWithFilters(
PerformContext context,
IJobPerformer performer,
IEnumerable <IServerFilter> filters)
{
var preContext = new PerformingContext(context);
Func <PerformedContext> continuation = () =>
{
performer.Perform(context.Activator, context.CancellationToken);
return(new PerformedContext(context, false, null));
};
var thunk = filters.Reverse().Aggregate(continuation,
(next, filter) => () => InvokePerformFilter(filter, preContext, next));
thunk();
}
private static void PerformJobWithFilters(
PerformContext context,
IJobPerformer performer,
IEnumerable<IServerFilter> filters)
{
var preContext = new PerformingContext(context);
Func<PerformedContext> continuation = () =>
{
performer.Perform(context.Activator, context.CancellationToken);
return new PerformedContext(context, false, null);
};
var thunk = filters.Reverse().Aggregate(continuation,
(next, filter) => () => InvokePerformFilter(filter, preContext, next));
thunk();
}
private object PerformJobWithFilters(
PerformContext context,
IJobPerformer performer,
IEnumerable <IServerFilter> filters)
{
object result = null;
var preContext = new PerformingContext(context);
Func <PerformedContext> continuation = () =>
{
result = performer.Perform(_activator, context.JobExecutionContext);
return(new PerformedContext(context, result, false, null));
};
var thunk = filters.Reverse().Aggregate(continuation,
(next, filter) => () => InvokePerformFilter(filter, preContext, next));
thunk();
return(result);
}
