private async Task <WriteDataItemsResult> AdapterWriteTask(AdapterState adapter, List <DataItemValue> items, Duration?timeout)
{
if (adapter.State != State.Running)
{
string err = "Adapter is not in state Running. Current state: " + adapter.State;
Log_Warn("WriteStateError", err);
adapter.SetOfPendingWriteItems.ExceptWith(items.Select(it => it.ID));
FailedDataItemWrite[] failures = items.Select(it => new FailedDataItemWrite(it.ID, err)).ToArray();
return(WriteDataItemsResult.Failure(failures));
}
try {
IList <WriteTask> writeTasks = adapter.WriteItems(items, timeout);
Task <WriteDataItemsResult>[] tasks = writeTasks.Select(writeTask => writeTask.Task.ContinueWith(t => {
adapter.SetOfPendingWriteItems.ExceptWith(writeTask.IDs);
return(t.Result);
})).ToArray();
WriteDataItemsResult[] res = await Task.WhenAll(tasks);
return(WriteDataItemsResult.FromResults(res));
}
catch (Exception exception) {
Exception exp = exception.GetBaseException() ?? exception;
string err = adapter.Name + " adapter exception: " + exp.Message;
Task ignored = RestartAdapterOrCrash(adapter, "Write exception: " + exp.Message);
FailedDataItemWrite[] failures = items.Select(it => new FailedDataItemWrite(it.ID, err)).ToArray();
return(WriteDataItemsResult.Failure(failures));
}
}
public WriteDataItemsResult GetWriteResult()
{
if (failures.Count == 0)
{
return(WriteDataItemsResult.OK);
}
else
{
return(WriteDataItemsResult.Failure(failures.ToArray()));
}
}