/// <summary>
/// <paramref name="options"/>에 따라 ParallelQuery{TSource} 를 빌드합니다.
/// </summary>
/// <typeparam name="TSource"></typeparam>
/// <param name="source"></param>
/// <param name="options"></param>
/// <returns></returns>
public static ParallelQuery <TSource> AsParallel <TSource>(this IEnumerable <TSource> source, ParallelOptions options)
{
source.ShouldNotBeNull("source");
options = options ?? ParallelTool.DefaultParallelOptions;
return(AsParallel(source, ParallelLinqOptions.CreateFrom(options)));
}
/// <summary>
/// <paramref name="options"/>에 따라 ParallelQuery{TSource} 를 빌드합니다.
/// </summary>
/// <typeparam name="TSource"></typeparam>
/// <param name="source"></param>
/// <param name="options"></param>
/// <returns></returns>
public static ParallelQuery <TSource> AsParallel <TSource>(this IEnumerable <TSource> source, ParallelLinqOptions options = null)
{
source.ShouldNotBeNull("source");
options = options ?? ParallelLinqOptions.CreateFrom(ParallelTool.DefaultParallelOptions);
if (options.TaskScheduler != null && options.TaskScheduler != TaskScheduler.Default)
{
throw new InvalidOperationException("Parallel LINQ 는 기본 TaskScheduler만 지원합니다. " +
"options.TaskScheduler는 TaskScheduler.Default가 아닙니다.");
}
if (IsDebugEnabled)
{
log.Debug("병렬 옵션을 기준으로 PLINQ로 변환합니다... options=[{0}]", options.ObjectToString());
}
var result = source.AsParallel();
if (options.Ordered)
{
result = result.AsOrdered();
}
if (options.CancellationToken.CanBeCanceled)
{
result = result.WithCancellation(options.CancellationToken);
}
if (options.MaxDegreeOfParallelism >= 1)
{
result = result.WithDegreeOfParallelism(options.MaxDegreeOfParallelism);
}
if (options.ExecutionMode != ParallelExecutionMode.Default)
{
result = result.WithExecutionMode(options.ExecutionMode);
}
if (options.MergeOptions != ParallelMergeOptions.Default)
{
result = result.WithMergeOptions(options.MergeOptions);
}
return(result);
}
