public override async Task <WriteDataItemsResult> WriteDataItems(string group, IList <DataItemValue> values, Duration?timeout)
{
if (!await TryConnect() || connection == null)
{
var failed = values.Select(div => new FailedDataItemWrite(div.ID, "No connection to server")).ToArray();
return(WriteDataItemsResult.Failure(failed));
}
var writeMan = new WriteManager <VariableValue, VariableError>(values, request => {
if (mapId2Info.ContainsKey(request.ID))
{
ItemInfo info = mapId2Info[request.ID];
return(VariableValue.Make(info.VarRef, request.Value));
}
else
{
throw new Exception("No Address defined");
}
});
try {
var dataItemsToWrite = writeMan.GetRefsList();
WriteResult res = await connection.WriteVariablesSyncIgnoreMissing(dataItemsToWrite, timeout);
if (!res.IsOK())
{
writeMan.AddWriteErrors(res.FailedVariables, failedVar => {
VariableRef v = failedVar.Variable;
int idx = dataItemsToWrite.FindIndexOrThrow(vv => vv.Variable == v);
string id = writeMan.GetWriteRequest(idx).ID;
return(new FailedDataItemWrite(id, failedVar.Error));
});
}
}
catch (Exception exp) {
Task ignored = CloseConnection();
Exception e = exp.GetBaseException() ?? exp;
string msg = $"Write exception: {e.Message}";
LogWarn("WriteExcept", msg, details: e.ToString());
var failed = values.Select(div => new FailedDataItemWrite(div.ID, msg)).ToArray();
return(WriteDataItemsResult.Failure(failed));
}
return(writeMan.GetWriteResult());
}