/// <summary>
/// Converts a UA value to an HDA attribute value.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="attributeId">The attribute id.</param>
/// <param name="values">The values.</param>
/// <param name="index">The index.</param>
/// <returns></returns>
private DaValue GetAttributeValue(Session session, uint attributeId, DataValueCollection values, int index)
{
switch (attributeId)
{
case Constants.OPCHDA_DATA_TYPE:
{
DaValue result = new DaValue();
DataValue value = values[index];
// check for valid node.
if (StatusCode.IsBad(value.StatusCode))
{
result.Error = ResultIds.E_UNKNOWNITEMID;
return(result);
}
// covert to var type.
NodeId dataTypeId = value.GetValue <NodeId>(DataTypeIds.BaseDataType);
int valueRank = values[index + 1].GetValue <int>(ValueRanks.Scalar);
BuiltInType builtInType = DataTypes.GetBuiltInType(dataTypeId, session.TypeTree);
TypeInfo typeInfo = new TypeInfo(builtInType, valueRank);
short varType = (short)ComUtils.GetVarType(typeInfo);
result.Value = varType;
result.Quality = ComUtils.GetQualityCode(value.StatusCode);
result.Timestamp = value.ServerTimestamp;
result.Error = ResultIds.S_OK;
return(result);
}
case Constants.OPCHDA_DESCRIPTION:
{
DataValue value = values[index];
if (value.StatusCode == StatusCodes.BadAttributeIdInvalid)
{
DaValue result = new DaValue();
result.Error = ResultIds.E_INVALIDATTRID;
return(result);
}
return(m_mapper.GetLocalDataValue(value));
}
default:
{
return(ComHdaProxy.GetAttributeValue(session, m_mapper, attributeId, values[index]));
}
}
}
/// <summary>
/// Gets the item value.
/// </summary>
/// <param name="daValue">The da value.</param>
/// <param name="uaValue">The ua value.</param>
/// <param name="diagnosticsMasks">The diagnostics masks.</param>
/// <returns></returns>
public static ServiceResult GetItemValue(DaValue daValue, DataValue uaValue, DiagnosticsMasks diagnosticsMasks)
{
ServiceResult result = null;
uaValue.Value = null;
if (daValue == null)
{
result = uaValue.StatusCode = StatusCodes.BadOutOfService;
return(result);
}
if (daValue.Timestamp.Kind == DateTimeKind.Unspecified)
{
uaValue.SourceTimestamp = DateTime.SpecifyKind(daValue.Timestamp, DateTimeKind.Utc);
}
else
{
throw new System.Exception(string.Format("The type of data from OPC server is not known: {0}", daValue.Timestamp.Kind.ToString()));
}
if (daValue.Error < 0)
{
result = MapReadErrorToServiceResult(daValue.Error, diagnosticsMasks);
uaValue.StatusCode = result.StatusCode;
return(result);
}
if (daValue.Quality != OpcRcw.Da.Qualities.OPC_QUALITY_GOOD)
{
uaValue.StatusCode = ComUtils.GetQualityCode(daValue.Quality);
}
if (StatusCode.IsBad(uaValue.StatusCode))
{
result = uaValue.StatusCode;
return(result);
}
uaValue.Value = daValue.Value;
return(result);
}
/// <summary>
/// Gets the item value.
/// </summary>
/// <param name="daValue">The da value.</param>
/// <param name="uaValue">The ua value.</param>
/// <param name="diagnosticsMasks">The diagnostics masks.</param>
/// <returns></returns>
public static ServiceResult GetItemValue(DaValue daValue, DataValue uaValue, DiagnosticsMasks diagnosticsMasks)
{
ServiceResult result = null;
uaValue.Value = null;
if (daValue == null)
{
result = uaValue.StatusCode = StatusCodes.BadOutOfService;
return(result);
}
uaValue.SourceTimestamp = daValue.Timestamp;
if (daValue.Error < 0)
{
result = MapReadErrorToServiceResult(daValue.Error, diagnosticsMasks);
uaValue.StatusCode = result.StatusCode;
return(result);
}
if (daValue.Quality != OpcRcw.Da.Qualities.OPC_QUALITY_GOOD)
{
uaValue.StatusCode = ComUtils.GetQualityCode(daValue.Quality);
}
if (StatusCode.IsBad(uaValue.StatusCode))
{
result = uaValue.StatusCode;
return(result);
}
uaValue.Value = daValue.Value;
return(result);
}
/// <summary>
/// Updates the condition event.
/// </summary>
private void UpdateAlarm(AlarmConditionState instance, EventType eventType, ONEVENTSTRUCT e)
{
instance.NodeId = AeParsedNodeId.ConstructIdForCondition(e.szSource, e.dwEventCategory, e.szConditionName, m_namespaceIndex);
// find the condition class.
NodeId classId = AeParsedNodeId.Construct(e.dwEventType, e.dwEventCategory, null, m_namespaceIndex);
AeEventTypeState conditionClassType = m_cache.FindType(m_defaultContext, classId);
if (conditionClassType != null)
{
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.ConditionClassId, classId, false);
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.ConditionClassName, conditionClassType.EventType.Description, false);
}
else
{
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.ConditionClassId, Opc.Ua.ObjectTypeIds.BaseConditionClassType, false);
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.ConditionClassName, "BaseConditionClass", false);
}
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.ConditionName, e.szConditionName, false);;
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.ClientUserId, e.szActorID, false);
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.Quality, ComUtils.GetQualityCode(e.wQuality), false);
bool acknowledged = (e.wNewState & Constants.CONDITION_ACKED) != 0;
bool active = (e.wNewState & Constants.CONDITION_ACTIVE) != 0;
bool enabled = (e.wNewState & Constants.CONDITION_ENABLED) != 0;
bool retain = enabled & (active || !acknowledged);
LocalizedText effectiveDisplayName = ConditionStateNames.Inactive;
if (!enabled)
{
effectiveDisplayName = ConditionStateNames.Disabled;
}
else if (!acknowledged)
{
effectiveDisplayName = ConditionStateNames.Unacknowledged;
}
else if (active)
{
effectiveDisplayName = ConditionStateNames.Active;
}
instance.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.Retain, true, false);
instance.EnabledState = new TwoStateVariableState(instance);
instance.EnabledState.BrowseName = Opc.Ua.BrowseNames.EnabledState;
instance.EnabledState.Value = new LocalizedText((enabled) ? ConditionStateNames.Enabled : ConditionStateNames.Disabled);
instance.EnabledState.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.Id, enabled, false);
instance.EnabledState.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.EffectiveDisplayName, effectiveDisplayName, false);
instance.AckedState = new TwoStateVariableState(instance);
instance.AckedState.BrowseName = Opc.Ua.BrowseNames.AckedState;
instance.AckedState.Value = new LocalizedText((acknowledged) ? ConditionStateNames.Acknowledged : ConditionStateNames.Unacknowledged);
instance.AckedState.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.Id, acknowledged, false);
instance.ActiveState = new TwoStateVariableState(instance);
instance.ActiveState.BrowseName = Opc.Ua.BrowseNames.ActiveState;
instance.ActiveState.Value = new LocalizedText((active) ? ConditionStateNames.Active : ConditionStateNames.Inactive);
instance.ActiveState.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.Id, active, false);
instance.ActiveState.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.TransitionTime, ComUtils.GetDateTime(e.ftActiveTime), false);
if (!String.IsNullOrEmpty(e.szSubconditionName))
{
instance.ActiveState.SetChildValue(m_defaultContext, Opc.Ua.BrowseNames.EffectiveDisplayName, e.szSubconditionName, false);
}
}
/// <summary>
/// Marshals an event for return to the client.
/// </summary>
private OpcRcw.Ae.ONEVENTSTRUCT Translate(AeEvent e)
{
OpcRcw.Ae.ONEVENTSTRUCT e2 = new ONEVENTSTRUCT();
e2.wNewState = 0;
e2.wChangeMask = 0xFF;
e2.szSource = e.SourceName;
e2.wQuality = ComUtils.GetQualityCode(e.Quality);
e2.dwEventType = e.Category.EventType;
e2.dwEventCategory = (int)e.Category.LocalId;
e2.bAckRequired = 0;
e2.dwSeverity = e.Severity;
e2.ftTime = ComUtils.GetFILETIME(e.Time);
e2.szMessage = (e.Message != null) ? e.Message.Text : null;
e2.szActorID = e.AuditUserId;
e2.dwCookie = e.Cookie;
if (e.AttributeValues != null && e.AttributeValues.Length > 0)
{
e2.dwNumEventAttrs = e.AttributeValues.Length;
e2.pEventAttributes = ComUtils.GetVARIANTs(e.AttributeValues, true);
}
if ((e2.dwEventType & OpcRcw.Ae.Constants.CONDITION_EVENT) != 0)
{
e2.szConditionName = e.ConditionName;
e2.ftActiveTime = ComUtils.GetFILETIME(e.ActiveTime);
e2.bAckRequired = (e.AckedState)?0:1;
// set the condition state.
e2.wNewState = 0;
if (e.EnabledState)
{
e2.wNewState |= OpcRcw.Ae.Constants.CONDITION_ENABLED;
}
if (e.AckedState)
{
e2.wNewState |= OpcRcw.Ae.Constants.CONDITION_ACKED;
}
if (e.ActiveState)
{
e2.wNewState |= OpcRcw.Ae.Constants.CONDITION_ACTIVE;
}
// set the subcondition if available.
if (!LocalizedText.IsNullOrEmpty(e.LowState))
{
e2.szSubconditionName = e.LowState.Text;
}
if (!LocalizedText.IsNullOrEmpty(e.HighState))
{
e2.szSubconditionName = e.HighState.Text;
}
if (!LocalizedText.IsNullOrEmpty(e.LowLowState))
{
e2.szSubconditionName = e.LowLowState.Text;
}
if (!LocalizedText.IsNullOrEmpty(e.HighHighState))
{
e2.szSubconditionName = e.HighHighState.Text;
}
if (!LocalizedText.IsNullOrEmpty(e.LimitState))
{
e2.szSubconditionName = e.LimitState.Text;
}
}
if (e2.szMessage == null)
{
e2.szMessage = String.Empty;
}
if (e2.szSource == null)
{
e2.szSource = String.Empty;
}
if (e2.szConditionName == null)
{
e2.szConditionName = String.Empty;
}
if (e2.szSubconditionName == null)
{
e2.szSubconditionName = String.Empty;
}
if (e2.szActorID == null)
{
e2.szActorID = String.Empty;
}
return(e2);
}
