public override IEtlOperationResult Execute(EtlPipelineContext context)
{
var log = context.GetLogger(GetType().Name);
if (!_predicate(context))
{
log.Info($"Predicate evaluated to false for running of '{Name}', skipping.");
return(new EtlOperationResult(true));
}
log.Info($"Predicate evaluated to true for running of '{Name}', executing.");
return(_operation.Execute(context));
}
private IEtlOperationResult ExecuteOperation(IEtlOperation operation, EtlPipelineContext context)
{
_currentlyExecutingOperation = operation;
IEtlOperationResult result = null;
try
{
switch (operation)
{
case IConditionalLoopEtlOperation loop:
{
var multiResult = new EtlOperationResult(true);
do
{
foreach (var op in loop.GetOperations())
{
_executionResults[op] = LastResult = ExecuteOperation(op, context);
multiResult
.WithErrors(LastResult.Errors)
.QuiesceSuccess(LastResult.IsSuccess);
}
} while (loop.Predicate(Context));
return(multiResult);
}
case IEtlOperationCollection collection:
{
var multiResult = new EtlOperationResult(true);
foreach (var op in collection.GetOperations())
{
_executionResults[op] = LastResult = ExecuteOperation(op, context);
multiResult
.WithErrors(LastResult.Errors)
.QuiesceSuccess(LastResult.IsSuccess);
}
return(multiResult);
}
default:
result = operation.Execute(context);
break;
}
}
catch (Exception e)
{
if (EtlLibConfig.EnableDebug)
{
Debugger.Break();
}
_log.Error(
$"An error occured while executing operation '{operation.Name}' ({operation.GetType().Name}): {e}");
var error = new EtlOperationError(operation, e);
if (!_settings.OnErrorFn.Invoke(context, new[] { error }))
{
throw new PipelineAbortException(operation, error);
}
}
finally
{
if (result?.Errors.Count > 0)
{
context.ReportErrors(result.Errors);
if (!_settings.OnErrorFn.Invoke(context, result.Errors.ToArray()))
{
throw new PipelineAbortException(operation, result.Errors);
}
}
if (operation is IDisposable disposable)
{
_log.Debug("Disposing of resources used by step.");
disposable.Dispose();
}
_log.Debug("Cleaning up (globally).");
GC.Collect();
}
return(result);
}
