public override async Task <WriteResult> WriteVariables(Origin origin, VariableValue[] values, Duration?timeout)
{
var failed = new List <VariableError>(0);
var skippedItems = new List <string>(0);
var adapter2Items = new Dictionary <AdapterState, List <DataItemValue> >();
foreach (VariableValue vv in values)
{
string id = vv.Variable.Object.LocalObjectID;
if (vv.Variable.Name != VariableName)
{
Log_Warn("InvalidVarNames", "WriteVariables: Invalid variable name: " + vv.Variable, origin);
failed.Add(new VariableError(vv.Variable, "Invalid variable name"));
continue;
}
if (!dataItemsState.ContainsKey(id))
{
Log_Warn("UnknownID", "WriteVariables: No writable data item found with id: " + id, origin);
failed.Add(new VariableError(vv.Variable, "No writable data item found with id " + id));
continue;
}
ItemState itemState = dataItemsState[id];
if (!itemState.Writeable)
{
Log_Warn("NotWriteable", $"WriteVariables: Data item {id} is not writable", origin);
failed.Add(new VariableError(vv.Variable, $"Data item {id} is not writable"));
continue;
}
AdapterState adapter = itemState.Adapter;
if (adapter.SetOfPendingWriteItems.Contains(id))
{
skippedItems.Add(id);
failed.Add(new VariableError(vv.Variable, "Previous write still pending"));
continue;
}
if (!adapter2Items.ContainsKey(adapter))
{
adapter2Items[adapter] = new List <DataItemValue>();
}
adapter2Items[adapter].Add(new DataItemValue(id, vv.Value));
adapter.SetOfPendingWriteItems.Add(id);
}
if (skippedItems.Count > 0)
{
string warn = string.Format("Write of {0} data items skipped because of pending write: {1}", skippedItems.Count, string.Join(", ", skippedItems));
Log_Warn("WritesPending", warn, origin);
}
var allWriteTasks = new List <Task <WriteDataItemsResult> >(adapter2Items.Count);
foreach (var adapterItems in adapter2Items)
{
AdapterState adapter = adapterItems.Key;
List <DataItemValue> items = adapterItems.Value;
Task <WriteDataItemsResult> task = AdapterWriteTask(adapter, items, timeout);
allWriteTasks.Add(task);
}
WriteDataItemsResult[] resArr = await Task.WhenAll(allWriteTasks);
WriteResult res = MapWriteResults(moduleID, resArr);
if (res.Failed())
{
failed.AddRange(res.FailedVariables);
}
if (failed.Count == 0)
{
return(WriteResult.OK);
}
else
{
return(WriteResult.Failure(failed.ToArray()));
}
}