/// <summary>
/// Validates the nodes and updates the history.
/// </summary>
protected virtual void HistoryUpdate(
ServerSystemContext context,
Type detailsType,
IList<HistoryUpdateDetails> nodesToUpdate,
IList<HistoryUpdateResult> results,
IList<ServiceResult> errors,
List<NodeHandle> nodesToProcess,
IDictionary<NodeId, NodeState> cache)
{
// handle update data request.
if (detailsType == typeof(UpdateDataDetails))
{
UpdateDataDetails[] details = new UpdateDataDetails[nodesToUpdate.Count];
for (int ii = 0; ii < details.Length; ii++)
{
details[ii] = (UpdateDataDetails)nodesToUpdate[ii];
}
HistoryUpdateData(
context,
details,
results,
errors,
nodesToProcess,
cache);
return;
}
// handle update structure data request.
if (detailsType == typeof(UpdateStructureDataDetails))
{
UpdateStructureDataDetails[] details = new UpdateStructureDataDetails[nodesToUpdate.Count];
for (int ii = 0; ii < details.Length; ii++)
{
details[ii] = (UpdateStructureDataDetails)nodesToUpdate[ii];
}
HistoryUpdateStructureData(
context,
details,
results,
errors,
nodesToProcess,
cache);
return;
}
// handle update events request.
if (detailsType == typeof(UpdateEventDetails))
{
UpdateEventDetails[] details = new UpdateEventDetails[nodesToUpdate.Count];
for (int ii = 0; ii < details.Length; ii++)
{
details[ii] = (UpdateEventDetails)nodesToUpdate[ii];
}
HistoryUpdateEvents(
context,
details,
results,
errors,
nodesToProcess,
cache);
return;
}
// handle delete raw data request.
if (detailsType == typeof(DeleteRawModifiedDetails))
{
DeleteRawModifiedDetails[] details = new DeleteRawModifiedDetails[nodesToUpdate.Count];
for (int ii = 0; ii < details.Length; ii++)
{
details[ii] = (DeleteRawModifiedDetails)nodesToUpdate[ii];
}
HistoryDeleteRawModified(
context,
details,
results,
errors,
nodesToProcess,
cache);
return;
}
// handle delete at time request.
if (detailsType == typeof(DeleteAtTimeDetails))
{
DeleteAtTimeDetails[] details = new DeleteAtTimeDetails[nodesToUpdate.Count];
for (int ii = 0; ii < details.Length; ii++)
{
details[ii] = (DeleteAtTimeDetails)nodesToUpdate[ii];
}
HistoryDeleteAtTime(
context,
details,
results,
errors,
nodesToProcess,
cache);
return;
}
// handle delete at time request.
if (detailsType == typeof(DeleteEventDetails))
{
DeleteEventDetails[] details = new DeleteEventDetails[nodesToUpdate.Count];
for (int ii = 0; ii < details.Length; ii++)
{
details[ii] = (DeleteEventDetails)nodesToUpdate[ii];
}
HistoryDeleteEvents(
context,
details,
results,
errors,
nodesToProcess,
cache);
return;
}
}
/// <summary>
/// Deletes history events.
/// </summary>
protected override void HistoryDeleteEvents(
ServerSystemContext context,
IList <DeleteEventDetails> nodesToUpdate,
IList <HistoryUpdateResult> results,
IList <ServiceResult> errors,
List <NodeHandle> nodesToProcess,
IDictionary <NodeId, NodeState> cache)
{
for (int ii = 0; ii < nodesToProcess.Count; ii++)
{
NodeHandle handle = nodesToProcess[ii];
DeleteEventDetails nodeToUpdate = nodesToUpdate[handle.Index];
HistoryUpdateResult result = results[handle.Index];
// delete events.
bool failed = false;
for (int jj = 0; jj < nodeToUpdate.EventIds.Count; jj++)
{
try
{
string eventId = new Guid(nodeToUpdate.EventIds[jj]).ToString();
if (!m_generator.DeleteEvent(eventId))
{
result.OperationResults.Add(StatusCodes.BadEventIdUnknown);
failed = true;
continue;
}
result.OperationResults.Add(StatusCodes.Good);
}
catch
{
result.OperationResults.Add(StatusCodes.BadEventIdUnknown);
failed = true;
}
}
// check if diagnostics are required.
if (failed)
{
if ((context.DiagnosticsMask & DiagnosticsMasks.OperationAll) != 0)
{
for (int jj = 0; jj < nodeToUpdate.EventIds.Count; jj++)
{
if (StatusCode.IsBad(result.OperationResults[jj]))
{
result.DiagnosticInfos.Add(ServerUtils.CreateDiagnosticInfo(Server, context.OperationContext, result.OperationResults[jj]));
}
}
}
}
// clear operation results if all good.
else
{
result.OperationResults.Clear();
}
// all done.
errors[handle.Index] = ServiceResult.Good;
}
}
/// <summary>
/// Deletes the recent history.
/// </summary>
private void DeleteHistory(NodeId areaId, List <VariantCollection> events, FilterDeclaration filter)
{
// find the event id.
int index = 0;
foreach (FilterDeclarationField field in filter.Fields)
{
if (field.InstanceDeclaration.BrowseName == Opc.Ua.BrowseNames.EventId)
{
break;
}
index++;
}
// can't delete events if no event id.
if (index >= filter.Fields.Count)
{
throw ServiceResultException.Create(StatusCodes.BadEventIdUnknown, "Cannot delete events if EventId was not selected.");
}
// build list of nodes to delete.
DeleteEventDetails details = new DeleteEventDetails();
details.NodeId = areaId;
foreach (VariantCollection e in events)
{
byte[] eventId = null;
if (e.Count > index)
{
eventId = e[index].Value as byte[];
}
details.EventIds.Add(eventId);
}
// delete the events.
ExtensionObjectCollection nodesToUpdate = new ExtensionObjectCollection();
nodesToUpdate.Add(new ExtensionObject(details));
HistoryUpdateResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryUpdate(
null,
nodesToUpdate,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToUpdate);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToUpdate);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
// check for item level errors.
if (results[0].OperationResults.Count > 0)
{
int count = 0;
for (int ii = 0; ii < results[0].OperationResults.Count; ii++)
{
if (StatusCode.IsBad(results[0].OperationResults[ii]))
{
count++;
}
}
// raise an error.
if (count > 0)
{
throw ServiceResultException.Create(
StatusCodes.BadEventIdUnknown,
"Error deleting events. Only {0} of {1} deletes succeeded.",
events.Count - count,
events.Count);
}
}
}
/// <summary>
/// Deletes the recent history.
/// </summary>
private void DeleteHistory(NodeId areaId, List<VariantCollection> events, FilterDeclaration filter)
{
// find the event id.
int index = 0;
foreach (FilterDeclarationField field in filter.Fields)
{
if (field.InstanceDeclaration.BrowseName == Opc.Ua.BrowseNames.EventId)
{
break;
}
index++;
}
// can't delete events if no event id.
if (index >= filter.Fields.Count)
{
throw ServiceResultException.Create(StatusCodes.BadEventIdUnknown, "Cannot delete events if EventId was not selected.");
}
// build list of nodes to delete.
DeleteEventDetails details = new DeleteEventDetails();
details.NodeId = areaId;
foreach (VariantCollection e in events)
{
byte[] eventId = null;
if (e.Count > index)
{
eventId = e[index].Value as byte[];
}
details.EventIds.Add(eventId);
}
// delete the events.
ExtensionObjectCollection nodesToUpdate = new ExtensionObjectCollection();
nodesToUpdate.Add(new ExtensionObject(details));
HistoryUpdateResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryUpdate(
null,
nodesToUpdate,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToUpdate);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToUpdate);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
// check for item level errors.
if (results[0].OperationResults.Count > 0)
{
int count = 0;
for (int ii = 0; ii < results[0].OperationResults.Count; ii++)
{
if (StatusCode.IsBad(results[0].OperationResults[ii]))
{
count++;
}
}
// raise an error.
if (count > 0)
{
throw ServiceResultException.Create(
StatusCodes.BadEventIdUnknown,
"Error deleting events. Only {0} of {1} deletes succeeded.",
events.Count - count,
events.Count);
}
}
}
