public OpcStatusCollection DeleteHistory(
OpcContext context,
OpcHistoryModificationInfo modificationInfo,
IEnumerable <DateTime> times)
{
var results = OpcStatusCollection.Create(OpcStatusCode.Good, times.Count());
lock (this.syncRoot) {
int index = 0;
foreach (var time in times)
{
var result = results[index++];
if (this.History.Contains(time))
{
var value = this.History[time];
this.History.RemoveAt(time);
var modifiedValue = value.CreateModified(modificationInfo);
this.ModifiedHistory.Add(modifiedValue);
}
else
{
result.Update(OpcStatusCode.BadNoEntryExists);
}
}
}
return(results);
}
public OpcStatusCollection UpdateHistory(
OpcContext context,
OpcHistoryModificationInfo modificationInfo,
OpcValueCollection values)
{
var results = OpcStatusCollection.Create(OpcStatusCode.Good, values.Count);
lock (this.syncRoot) {
var expectedDataTypeId = this.Node.DataTypeId;
for (int index = 0; index < values.Count; index++)
{
var result = results[index];
var value = OpcHistoryValue.Create(values[index]);
if (value.DataTypeId == expectedDataTypeId)
{
if (this.History.Contains(value.Timestamp))
{
var oldValue = this.History[value.Timestamp];
this.History.Replace(value);
var modifiedValue = oldValue.CreateModified(modificationInfo);
this.ModifiedHistory.Add(modifiedValue);
result.Update(OpcStatusCode.GoodEntryReplaced);
}
else
{
this.History.Add(value);
var modifiedValue = value.CreateModified(modificationInfo);
this.ModifiedHistory.Add(modifiedValue);
result.Update(OpcStatusCode.GoodEntryInserted);
}
}
else
{
result.Update(OpcStatusCode.BadTypeMismatch);
}
}
}
return(results);
}