/// <summary>
/// Execute func for each int from and including fromInclusive and up to but not including toExclusive.
/// Funcs will execute on distributed node proxies based on subscription rate.
/// </summary>
/// <typeparam name="TReturn">The return type of func.</typeparam>
/// <param name="fromInclusive">The starting index value.</param>
/// <param name="toExclusive">The ending index value plus one.</param>
/// <param name="func">The Func that returns TReturn and takes the int index value, the DistributedLoopState of TReturn and TInterface as inputs.</param>
/// <returns>DistributedLoopResult of TReturn.</returns>
public DistributedLoopResult <TReturn> For <TReturn>(int fromInclusive, int toExclusive, Func <int, DistributedLoopState <TReturn>, TInterface, TReturn> func)
{
if (toExclusive <= fromInclusive)
{
return(new DistributedLoopResult <TReturn>());
}
var state = new DistributedLoopState <TReturn>();
for (int index = fromInclusive; index < toExclusive; index++)
{
if (!state.ContinueProcessing)
{
break;
}
var proxyIndex = GetNextBalancedProxyIndex();
TInterface t = _intercepts[proxyIndex];
int locIndex = index;
state.Tasks.Add(Task.Factory.StartNew(() =>
{
try
{
if (state.ContinueProcessing)
{
var funcResult = func(locIndex, state, t);
state.ReturnValues.Add(funcResult);
}
}
catch (Exception e)
{
var err = new DistributedExceptionInfo
{
Exception = e,
EndPoint = _interceptEndPoints[proxyIndex],
Index = locIndex,
Source = null,
TimeStamp = DateTime.Now
};
state.ExceptionInfos.Add(err);
}
}, TaskCreationOptions.LongRunning));
}
Task.WaitAll(state.Tasks.ToArray());
var result = new DistributedLoopResult <TReturn>()
{
Exceptions = state.ExceptionInfos.ToArray(),
Results = state.ReturnValues.ToArray(),
BreakIteration = state.BreakIteration
};
return(result);
}
/// <summary>
/// Execute func once per server node. Used most commonly to set the state of the singleton of TInterface hosted on the remote node.
/// </summary>
/// <typeparam name="TReturn">The return type of the Func passed into this method.</typeparam>
/// <typeparam name="TSource">The input source type for each action.</typeparam>
/// <param name="source">The input source object to be used in each execution of action on each server node proxy.</param>
/// <param name="func">The Func that takes the node index, source object, DistributedLoopState of TReturn and the TInterface proxy and returns the TReturn object.</param>
/// <returns>Returns DistributedLoopResult of type TReturn, the return value of func.</returns>
public DistributedLoopResult <TReturn> OncePerNode <TReturn, TSource>(TSource source, Func <int, TSource, DistributedLoopState <TReturn>, TInterface, TReturn> func)
{
var state = new DistributedLoopState <TReturn>();
for (int i = 0; i < _proxiesOnePerNode.Length; i++)
{
if (!state.ContinueProcessing)
{
break;
}
TSource locSource = source;
TInterface t = _proxiesOnePerNode[i];
var locIndex = i;
state.Tasks.Add(Task.Factory.StartNew(() =>
{
try
{
if (state.ContinueProcessing)
{
var funcResult = func(locIndex, locSource, state, t);
state.ReturnValues.Add(funcResult);
}
}
catch (Exception e)
{
var err = new DistributedExceptionInfo
{
Exception = e,
EndPoint = _servers[locIndex],
Index = locIndex,
Source = locSource,
TimeStamp = DateTime.Now
};
state.ExceptionInfos.Add(err);
}
}, TaskCreationOptions.LongRunning));
}
Task.WaitAll(state.Tasks.ToArray());
var result = new DistributedLoopResult <TReturn>()
{
Exceptions = state.ExceptionInfos.ToArray(),
Results = state.ReturnValues.ToArray(),
BreakIteration = state.BreakIteration
};
return(result);
}
internal DistributedLoopResult()
{
Exceptions = new DistributedExceptionInfo[0];
}