public static ExecutionResult ExecuteParallel <T>(IEnumerable <T> inputList, Action <IEnumerable <T> > actionToApply, ExecutionConfig execConfig, ParallelOptions parallelOptions = null)
{
ExecutionResult execResult = null;
if (inputList != null && inputList.Any() && actionToApply != null && execConfig != null)
{
var generalStopWatch = new Stopwatch();
generalStopWatch.Start();
int totalCount = inputList.Count();
int batchesCount = (int)Math.Ceiling(totalCount / (double)execConfig.BatchSize);
int firstBatchCount = 0;
int lastBatchCount = 0;
parallelOptions = parallelOptions ?? new ParallelOptions();
Dictionary <int, string> failedBatches = new Dictionary <int, string>();
Parallel.For(0, batchesCount, parallelOptions, (i) =>
{
try
{
var batchData = inputList.Skip(i * execConfig.BatchSize).Take(execConfig.BatchSize);
actionToApply(batchData);
if (i == 0)
{
firstBatchCount = batchData.Count();
}
if (i == (batchesCount - 1))
{
lastBatchCount = batchData.Count();
}
parallelOptions.CancellationToken.ThrowIfCancellationRequested();
}
catch (Exception ex)
{
failedBatches.Add(i, ex.Message);
}
});
generalStopWatch.Stop();
execResult = new ExecutionResult
{
TotalCount = totalCount,
BatchesCount = batchesCount,
FirstBatchCount = firstBatchCount,
LastBatchCount = lastBatchCount,
TotalExecutionTime = generalStopWatch.Elapsed,
AverageBatchExecutionTime = new TimeSpan(generalStopWatch.Elapsed.Ticks / batchesCount),
FailedBatches = failedBatches
};
}
return(execResult);
}
public static ExecutionResult Execute <T>(IEnumerable <T> inputList, Action <IEnumerable <T> > actionToApply, ExecutionConfig execConfig)
{
ExecutionResult execResult = null;
if (inputList != null && inputList.Any() && actionToApply != null && execConfig != null)
{
var generalStopWatch = new Stopwatch();
generalStopWatch.Start();
int totalCount = inputList.Count();
int batchesCount = (int)Math.Ceiling(totalCount / (double)execConfig.BatchSize);
int firstBatchCount = 0;
int lastBatchCount = 0;
Dictionary <int, string> failedBatches = new Dictionary <int, string>();
for (int i = 0; i < batchesCount; i++)
{
try
{
var batchData = inputList.Skip(i * execConfig.BatchSize).Take(execConfig.BatchSize);
actionToApply(batchData);
if (i == 0)
{
firstBatchCount = batchData.Count();
}
if (i == (batchesCount - 1))
{
lastBatchCount = batchData.Count();
}
if (i != (batchesCount - 1) && execConfig.BatchDelayInMS > 0)
{
Thread.Sleep(execConfig.BatchDelayInMS);
}
}
catch (Exception ex)
{
failedBatches.Add(i, ex.Message);
}
}
generalStopWatch.Stop();
var totalDelays = new TimeSpan(0, 0, 0, 0, execConfig.BatchDelayInMS * (batchesCount - 1));
var elapsedTimeWithoutDelays = generalStopWatch.Elapsed.Subtract(totalDelays);
execResult = new ExecutionResult
{
TotalCount = totalCount,
BatchesCount = batchesCount,
FirstBatchCount = firstBatchCount,
LastBatchCount = lastBatchCount,
TotalExecutionTime = elapsedTimeWithoutDelays,
AverageBatchExecutionTime = new TimeSpan(elapsedTimeWithoutDelays.Ticks / batchesCount),
TotalDelays = totalDelays,
FailedBatches = failedBatches
};
}
return(execResult);
}
