/// <summary>
/// Creates a deep copy of the value.
/// </summary>
/// <remarks>
/// Creates a deep copy of the value.
/// </remarks>
/// <param name="value">The text to create an instance from</param>
/// <exception cref="ArgumentNullException">Thrown when the value is null</exception>
public LocalizedText(LocalizedText value)
{
if (value == null) throw new ArgumentNullException("value");
Locale = value.Locale;
Text = value.Text;
}
/// <summary>
/// Initializes the object with the unitName and namespaceUri.
/// </summary>
public EUInformation(string shortName, string longName, string namespaceUri)
{
Initialize();
m_displayName = new LocalizedText(shortName);
m_description = new LocalizedText(longName);
m_namespaceUri = namespaceUri;
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
public ServiceResult(
StatusCode code,
string symbolicId,
string namespaceUri,
LocalizedText localizedText,
string additionalInfo)
:
this(code, symbolicId, namespaceUri, localizedText, additionalInfo, (ServiceResult)null)
{
}
/// <summary>
/// Initializes the instance with the default values.
/// </summary>
protected override void Initialize(ISystemContext context)
{
SuperTypeId = Opc.Ua.NodeId.Create(Opc.Ua.ObjectTypes.BaseObjectType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
NodeId = Opc.Ua.NodeId.Create(Opc.Ua.ObjectTypes.BaseObjectType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
BrowseName = Opc.Ua.QualifiedName.Create(Opc.Ua.BrowseNames.BaseObjectType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
DisplayName = new LocalizedText(Opc.Ua.BrowseNames.BaseObjectType, String.Empty, Opc.Ua.BrowseNames.BaseObjectType);
Description = null;
WriteMask = AttributeWriteMask.None;
UserWriteMask = AttributeWriteMask.None;
IsAbstract = false;
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
public ServiceResult(
StatusCode code,
string symbolicId,
string namespaceUri,
LocalizedText localizedText,
string additionalInfo,
ServiceResult innerResult)
{
StatusCode = code;
SymbolicId = symbolicId;
NamespaceUri = namespaceUri;
LocalizedText = localizedText;
AdditionalInfo = additionalInfo;
InnerResult = innerResult;
}
/// <summary>
/// Called when one or more sub-states change state.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="displayName">The display name for the effective state.</param>
/// <param name="transitionTime">The transition time.</param>
public virtual void SetEffectiveSubState(ISystemContext context, LocalizedText displayName, DateTime transitionTime)
{
if (this.EnabledState.EffectiveDisplayName != null)
{
this.EnabledState.EffectiveDisplayName.Value = displayName;
}
if (this.EnabledState.EffectiveTransitionTime != null)
{
if (transitionTime != DateTime.MinValue)
{
this.EnabledState.EffectiveTransitionTime.Value = transitionTime;
}
else
{
this.EnabledState.EffectiveTransitionTime.Value = DateTime.UtcNow;
}
}
}
/// <summary>
/// Initializes a new event.
/// </summary>
/// <param name="context">The current system context.</param>
/// <param name="source">The source of the event.</param>
/// <param name="severity">The severity for the event.</param>
/// <param name="message">The default message.</param>
public virtual void Initialize(
ISystemContext context,
NodeState source,
EventSeverity severity,
LocalizedText message)
{
m_eventId = new PropertyState<byte[]>(this);
m_eventId.Value = Guid.NewGuid().ToByteArray();
m_eventType = new PropertyState<NodeId>(this);
m_eventType.Value = GetDefaultTypeDefinitionId(context.NamespaceUris);
TypeDefinitionId = m_eventType.Value;
if (source != null)
{
if (!NodeId.IsNull(source.NodeId))
{
m_sourceNode = new PropertyState<NodeId>(this);
m_sourceNode.Value = source.NodeId;
}
if (!QualifiedName.IsNull(source.BrowseName))
{
m_sourceName = new PropertyState<string>(this);
m_sourceName.Value = source.BrowseName.Name;
}
}
m_time = new PropertyState<DateTime>(this);
m_time.Value = DateTime.UtcNow;
m_receiveTime = new PropertyState<DateTime>(this);
m_receiveTime.Value = DateTime.UtcNow;
m_severity = new PropertyState<ushort>(this);
m_severity.Value = (ushort)severity;
m_message = new PropertyState<LocalizedText>(this);
m_message.Value = message;
}
/// <summary>
/// Initializes a new event.
/// </summary>
/// <param name="context">The current system context.</param>
/// <param name="source">The source of the event.</param>
/// <param name="severity">The severity for the event.</param>
/// <param name="message">The default message.</param>
/// <param name="status">Whether the operation that caused the event succeeded.</param>
/// <param name="actionTimestamp">When the operation started.</param>
public virtual void Initialize(
ISystemContext context,
NodeState source,
EventSeverity severity,
LocalizedText message,
bool status,
DateTime actionTimestamp)
{
base.Initialize(context, source, severity, message);
m_status = new PropertyState<bool>(this);
m_status.Value = status;
if (actionTimestamp != DateTime.MinValue)
{
m_actionTimeStamp = new PropertyState<DateTime>(this);
m_actionTimeStamp.Value = actionTimestamp;
}
if (context.NamespaceUris != null)
{
m_serverId = new PropertyState<string>(this);
m_serverId.Value = context.NamespaceUris.GetString(1);
}
if (context.AuditEntryId != null)
{
m_clientAuditEntryId = new PropertyState<string>(this);
m_clientAuditEntryId.Value = context.AuditEntryId;
}
if (context.UserIdentity != null)
{
m_clientUserId = new PropertyState<string>(this);
m_clientUserId.Value = context.UserIdentity.DisplayName;
}
}
private ServiceResult OnUserArrayValue2(
ISystemContext context,
MethodState method,
NodeId objectId,
DateTime[] dateTimeIn,
Uuid[] guidIn,
byte[][] byteStringIn,
XmlElement[] xmlElementIn,
NodeId[] nodeIdIn,
ExpandedNodeId[] expandedNodeIdIn,
QualifiedName[] qualifiedNameIn,
LocalizedText[] localizedTextIn,
StatusCode[] statusCodeIn,
Variant[] variantIn,
ref DateTime[] dateTimeOut,
ref Uuid[] guidOut,
ref byte[][] byteStringOut,
ref XmlElement[] xmlElementOut,
ref NodeId[] nodeIdOut,
ref ExpandedNodeId[] expandedNodeIdOut,
ref QualifiedName[] qualifiedNameOut,
ref LocalizedText[] localizedTextOut,
ref StatusCode[] statusCodeOut,
ref Variant[] variantOut)
{
dateTimeOut = dateTimeIn;
guidOut = guidIn;
byteStringOut = byteStringIn;
xmlElementOut = xmlElementIn;
nodeIdOut = nodeIdIn;
expandedNodeIdOut = expandedNodeIdIn;
qualifiedNameOut = qualifiedNameIn;
localizedTextOut = localizedTextIn;
statusCodeOut = statusCodeIn;
variantOut = variantIn;
return ServiceResult.Good;
}
private ServiceResult OnUserScalarValue2(
ISystemContext context,
MethodState method,
NodeId objectId,
DateTime dateTimeIn,
Uuid guidIn,
byte[] byteStringIn,
XmlElement xmlElementIn,
NodeId nodeIdIn,
ExpandedNodeId expandedNodeIdIn,
QualifiedName qualifiedNameIn,
LocalizedText localizedTextIn,
StatusCode statusCodeIn,
object variantIn,
ref DateTime dateTimeOut,
ref Uuid guidOut,
ref byte[] byteStringOut,
ref XmlElement xmlElementOut,
ref NodeId nodeIdOut,
ref ExpandedNodeId expandedNodeIdOut,
ref QualifiedName qualifiedNameOut,
ref LocalizedText localizedTextOut,
ref StatusCode statusCodeOut,
ref object variantOut)
{
dateTimeOut = dateTimeIn;
guidOut = guidIn;
byteStringOut = byteStringIn;
xmlElementOut = xmlElementIn;
nodeIdOut = nodeIdIn;
expandedNodeIdOut = expandedNodeIdIn;
qualifiedNameOut = qualifiedNameIn;
localizedTextOut = localizedTextIn;
statusCodeOut = statusCodeIn;
variantOut = variantIn;
return ServiceResult.Good;
}
/// <summary>
/// Parses an XML element and returns the value contained in it.
/// </summary>
private object ToObject(XmlElement element)
{
switch (element.Name)
{
case "Byte":
{
return(XmlConvert.ToByte(element.InnerText));
}
case "SByte":
{
return(XmlConvert.ToSByte(element.InnerText));
}
case "Int16":
{
return(XmlConvert.ToInt16(element.InnerText));
}
case "UInt16":
{
return(XmlConvert.ToUInt16(element.InnerText));
}
case "Int32":
{
return(XmlConvert.ToInt32(element.InnerText));
}
case "UInt32":
{
return(XmlConvert.ToUInt32(element.InnerText));
}
case "Int64":
{
return(XmlConvert.ToInt64(element.InnerText));
}
case "UInt64":
{
return(XmlConvert.ToUInt64(element.InnerText));
}
case "Single":
{
return(XmlConvert.ToSingle(element.InnerText));
}
case "Double":
{
return(XmlConvert.ToDouble(element.InnerText));
}
case "String":
{
return(element.InnerText);
}
case "DateTime":
{
return(XmlConvert.ToDateTime(element.InnerText, XmlDateTimeSerializationMode.Utc));
}
case "NodeId":
{
XmlNode child = element.FirstChild;
string id = null;
if (GetValue(element, ref child, "Identifier", out id))
{
return(new NodeId(id));
}
break;
}
case "ExpandedNodeId":
{
XmlNode child = element.FirstChild;
string id = null;
if (GetValue(element, ref child, "Identifier", out id))
{
return(new NodeId(id));
}
break;
}
case "QualifiedName":
{
QualifiedName value = new QualifiedName();
XmlNode child = element.FirstChild;
string namespaceIndex = null;
if (GetValue(element, ref child, "NamespaceIndex", out namespaceIndex))
{
value.NamespaceIndex = XmlConvert.ToUInt16(namespaceIndex);
}
string name = null;
if (GetValue(element, ref child, "Name", out name))
{
value.Name = name;
}
return(value);
}
case "LocalizedText":
{
LocalizedText value = new LocalizedText();
XmlNode child = element.FirstChild;
string locale = null;
if (GetValue(element, ref child, "Locale", out locale))
{
value.Locale = locale;
}
string text = null;
if (GetValue(element, ref child, "Text", out text))
{
value.Text = text;
}
return(value);
}
case "StatusCode":
{
StatusCode value = new StatusCode();
XmlNode child = element.FirstChild;
string code = null;
if (GetValue(element, ref child, "Code", out code))
{
value.Code = XmlConvert.ToUInt32(code);;
}
return(value);
}
case "ExtensionObject":
{
ExtensionObject value = new ExtensionObject();
XmlNode child = element.FirstChild;
string typeId = null;
if (GetValue(element, ref child, "TypeId", out typeId))
{
value.TypeId = new ExpandedNodeId(typeId);
}
for (XmlNode node = child; node != null; node = node.NextSibling)
{
XmlElement element2 = child as XmlElement;
if (element2 != null)
{
if (element2.Name == "Body")
{
ExtensionObjectBody body = new ExtensionObjectBody();
body.Nodes = new XmlNode[] { GetFirstElement(element2) };
value.Body = body;
}
break;
}
}
return(value);
}
}
return(null);
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
public ServiceResult(
StatusCode code,
string symbolicId,
string namespaceUri,
LocalizedText localizedText)
:
this(code, symbolicId, namespaceUri, localizedText, (string)null, (ServiceResult)null)
{
}
/// <summary>
/// Called when the Confirm method is called.
/// </summary>
/// <param name="context">The system context.</param>
/// <param name="method">The method being called.</param>
/// <param name="objectId">The id of the object.</param>
/// <param name="eventId">The identifier for the event which is the target for the comment.</param>
/// <param name="comment">The comment.</param>
/// <returns>Any error.</returns>
protected virtual ServiceResult OnConfirmCalled(
ISystemContext context,
MethodState method,
NodeId objectId,
byte[] eventId,
LocalizedText comment)
{
ServiceResult error = ProcessBeforeConfirm(context, eventId, comment);
if (ServiceResult.IsGood(error))
{
AcknowledgeableConditionState branch = GetAcknowledgeableBranch(eventId);
if (branch != null)
{
branch.OnConfirmCalled(context, method, objectId, eventId, comment);
RemoveBranchEvent(eventId);
}
else
{
SetConfirmedState(context, true);
}
// If this is a branch, the comment goes to both the branch and the original event
if (CanSetComment(comment))
{
SetComment(context, comment, GetCurrentUserId(context));
}
UpdateRetainState();
}
if (EventsMonitored())
{
// report a state change event.
if (ServiceResult.IsGood(error))
{
ReportStateChange(context, false);
}
// raise the audit event.
AuditConditionConfirmEventState e = new AuditConditionConfirmEventState(null);
TranslationInfo info = new TranslationInfo(
"AuditConditionConfirm",
"en-US",
"The Confirm method was called.");
e.Initialize(
context,
this,
EventSeverity.Low,
new LocalizedText(info),
ServiceResult.IsGood(error),
DateTime.UtcNow);
e.SetChildValue(context, BrowseNames.SourceNode, NodeId, false);
e.SetChildValue(context, BrowseNames.SourceName, "Method/Confirm", false);
e.SetChildValue(context, BrowseNames.MethodId, method.NodeId, false);
e.SetChildValue(context, BrowseNames.InputArguments, new object[] { eventId, comment }, false);
e.SetChildValue(context, BrowseNames.ConditionEventId, eventId, false);
e.SetChildValue(context, BrowseNames.Comment, comment, false);
ReportEvent(context, e);
}
return(error);
}
/// <summary>
/// Adds a set of nodes to the table.
/// </summary>
/// <param name="nodeSet">The node set.</param>
/// <param name="externalReferences">The external references.</param>
/// <returns></returns>
public List <Node> Import(NodeSet nodeSet, IDictionary <NodeId, IList <IReference> > externalReferences)
{
List <Node> importedNodes = new List <Node>();
if (nodeSet == null)
{
return(importedNodes);
}
// add the nodes.
foreach (Node nodeToImport in nodeSet.Nodes)
{
// ignore empty nodes.
if (nodeToImport == null || NodeId.IsNull(nodeToImport.NodeId))
{
continue;
}
Node node = nodeSet.Copy(nodeToImport, m_namespaceUris, m_serverUris);
// assign a browse name.
if (QualifiedName.IsNull(node.BrowseName))
{
node.BrowseName = new QualifiedName(node.NodeId.ToString(), 1);
}
// assign a display name.
if (LocalizedText.IsNullOrEmpty(node.DisplayName))
{
node.DisplayName = new LocalizedText(node.BrowseName.Name);
}
// index references (the node ids in the references were translated by the Copy() call above).
foreach (ReferenceNode reference in node.References)
{
// ignore invalid references.
if (NodeId.IsNull(reference.ReferenceTypeId) || NodeId.IsNull(reference.TargetId))
{
continue;
}
// ignore missing targets.
ExpandedNodeId targetId = reference.TargetId;
if (NodeId.IsNull(targetId))
{
continue;
}
// index reference.
node.ReferenceTable.Add(reference.ReferenceTypeId, reference.IsInverse, targetId);
// see if a remote node needs to be created.
if (targetId.ServerIndex != 0)
{
RemoteNode remoteNode = Find(targetId) as RemoteNode;
if (remoteNode == null)
{
remoteNode = new RemoteNode(this, targetId);
InternalAdd(remoteNode);
}
remoteNode.AddRef();
}
}
// clear imported references.
node.References.Clear();
// add the node.
InternalAdd(node);
importedNodes.Add(node);
}
// import the nodes.
foreach (Node node in importedNodes)
{
// ignore invalid nodes.
if (node == null || NodeId.IsNull(node.NodeId))
{
continue;
}
// add reverse references.
foreach (IReference reference in node.ReferenceTable)
{
Node targetNode = Find(reference.TargetId) as Node;
if (targetNode == null)
{
if (reference.TargetId.ServerIndex != 0)
{
continue;
}
// return the reverse reference to a node outside the table.
if (externalReferences != null)
{
NodeId targetId = ExpandedNodeId.ToNodeId(reference.TargetId, m_namespaceUris);
if (targetId == null)
{
continue;
}
IList <IReference> referenceList = null;
if (!externalReferences.TryGetValue(targetId, out referenceList))
{
externalReferences[targetId] = referenceList = new List <IReference>();
}
ReferenceNode reverseReference = new ReferenceNode();
reverseReference.ReferenceTypeId = reference.ReferenceTypeId;
reverseReference.IsInverse = !reference.IsInverse;
reverseReference.TargetId = node.NodeId;
referenceList.Add(reverseReference);
}
continue;
}
// type definition and modelling rule references are one way.
if (reference.ReferenceTypeId != ReferenceTypeIds.HasTypeDefinition && reference.ReferenceTypeId != ReferenceTypeIds.HasModellingRule)
{
targetNode.ReferenceTable.Add(reference.ReferenceTypeId, !reference.IsInverse, node.NodeId);
}
}
// see if it is a type.
if (m_typeTree != null)
{
m_typeTree.Add(node);
}
}
return(importedNodes);
}
/// <summary>
/// Writes an LocalizedText to the stream.
/// </summary>
public void WriteLocalizedText(string fieldName, LocalizedText value)
{
if (BeginField(fieldName, value == null, true))
{
PushNamespace(Namespaces.OpcUaXsd);
if (value != null)
{
WriteString("Locale", value.Locale);
WriteString("Text", value.Text);
}
PopNamespace();
EndField(fieldName);
}
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
/// <remarks>
/// The innerException is used to construct the inner result.
/// </remarks>
public ServiceResult(
StatusCode code,
string symbolicId,
string namespaceUri,
LocalizedText localizedText,
string additionalInfo,
Exception innerException)
{
ServiceResult innerResult = new ServiceResult(innerException);
// check if no new information provided.
if (code.Code == innerResult.Code && symbolicId == null && localizedText == null && additionalInfo == null)
{
m_code = innerResult.Code;
m_symbolicId = innerResult.SymbolicId;
m_namespaceUri = innerResult.NamespaceUri;
m_localizedText = innerResult.LocalizedText;
m_additionalInfo = innerResult.AdditionalInfo;
m_innerResult = innerResult.InnerResult;
}
// make the exception the inner result.
else
{
m_code = code.Code;
m_symbolicId = symbolicId;
m_namespaceUri = namespaceUri;
m_localizedText = localizedText;
m_additionalInfo = additionalInfo;
m_innerResult = innerResult;
}
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
public ServiceResult(
StatusCode code,
XmlQualifiedName symbolicId,
LocalizedText localizedText)
:
this(code, (symbolicId != null) ? symbolicId.Name : null, (symbolicId != null) ? symbolicId.Namespace : null, localizedText, (string)null, (ServiceResult)null)
{
}
/// <summary>
/// Initializes the node from the element.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="element">The element.</param>
/// <param name="namespaceIndex">Index of the namespace.</param>
public void Initialize(ISystemContext context, DaElement element, ushort namespaceIndex)
{
m_element = element;
if (element == null)
{
return;
}
this.NodeId = DaModelUtils.ConstructIdForDaElement(element.ItemId, -1, namespaceIndex);
this.BrowseName = new QualifiedName(element.Name, namespaceIndex);
this.DisplayName = new LocalizedText(element.Name);
// check if TimeZone is supported.
if (element.TimeZone != null)
{
PropertyState property = this.AddProperty<Range>(Opc.Ua.BrowseNames.LocalTime, DataTypeIds.TimeZoneDataType, ValueRanks.Scalar);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
property.Value = new Range(element.HighIR, element.LowIR);
}
// set the TypeDefinition based on the ElementType.
switch (element.ElementType)
{
case DaElementType.AnalogItem:
{
this.TypeDefinitionId = Opc.Ua.VariableTypeIds.AnalogItemType;
// EURange is always present.
PropertyState property = this.AddProperty<Range>(Opc.Ua.BrowseNames.EURange, DataTypeIds.Range, ValueRanks.Scalar);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
property.Value = new Range(element.HighEU, element.LowEU);
// check if InstrumentRange is supported.
if (element.HighIR != 0 || element.LowIR != 0)
{
property = this.AddProperty<Range>(Opc.Ua.BrowseNames.InstrumentRange, DataTypeIds.Range, ValueRanks.Scalar);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
property.Value = new Range(element.HighIR, element.LowIR);
}
// check if EngineeringUnits is supported.
if (element.EngineeringUnits != null)
{
property = this.AddProperty<EUInformation>(Opc.Ua.BrowseNames.EngineeringUnits, DataTypeIds.EUInformation, ValueRanks.Scalar);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
// use the server's namespace uri to qualify the engineering units.
string namespaceUri = context.NamespaceUris.GetString(namespaceIndex);
property.Value = new EUInformation(element.EngineeringUnits, namespaceUri);
}
break;
}
case DaElementType.DigitalItem:
{
this.TypeDefinitionId = Opc.Ua.VariableTypeIds.TwoStateDiscreteType;
// check if CloseLabel is supported.
if (element.CloseLabel != null)
{
PropertyState property = this.AddProperty<LocalizedText>(Opc.Ua.BrowseNames.TrueState, DataTypeIds.LocalizedText, ValueRanks.Scalar);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
property.Value = element.CloseLabel;
}
// check if OpenLabel is supported.
if (element.OpenLabel != null)
{
PropertyState property = this.AddProperty<LocalizedText>(Opc.Ua.BrowseNames.FalseState, DataTypeIds.LocalizedText, ValueRanks.Scalar);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
property.Value = element.OpenLabel;
}
break;
}
case DaElementType.EnumeratedItem:
{
this.TypeDefinitionId = Opc.Ua.VariableTypeIds.MultiStateDiscreteType;
// check if EuInfo is supported.
if (element.EuInfo != null)
{
PropertyState property = this.AddProperty<LocalizedText[]>(Opc.Ua.BrowseNames.EnumStrings, DataTypeIds.LocalizedText, ValueRanks.OneDimension);
property.NodeId = DaModelUtils.ConstructIdForComponent(property, namespaceIndex);
LocalizedText[] strings = new LocalizedText[element.EuInfo.Length];
for (int ii = 0; ii < strings.Length; ii++)
{
strings[ii] = element.EuInfo[ii];
}
property.Value = strings;
}
break;
}
}
if (element.Description != null)
{
this.Description = element.Description;
}
this.Value = null;
this.StatusCode = StatusCodes.BadWaitingForInitialData;
this.Timestamp = DateTime.UtcNow;
bool isArray = false;
this.DataType = ComUtils.GetDataTypeId(element.DataType, out isArray);
this.ValueRank = (isArray)?ValueRanks.OneOrMoreDimensions:ValueRanks.Scalar;
this.AccessLevel = AccessLevels.None;
if ((element.AccessRights & OpcRcw.Da.Constants.OPC_READABLE) != 0)
{
this.AccessLevel |= AccessLevels.CurrentRead;
}
if ((element.AccessRights & OpcRcw.Da.Constants.OPC_WRITEABLE) != 0)
{
this.AccessLevel |= AccessLevels.CurrentWrite;
}
this.UserAccessLevel = this.AccessLevel;
this.MinimumSamplingInterval = element.ScanRate;
}
/// <summary>
/// Initializes the instance from an event notification.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="fields">The fields selected for the event notification.</param>
/// <param name="e">The event notification.</param>
/// <remarks>
/// This method creates components based on the browse paths in the event field and sets
/// the NodeId or Value based on values in the event notification.
/// </remarks>
public void Update(
ISystemContext context,
SimpleAttributeOperandCollection fields,
EventFieldList e)
{
for (int ii = 0; ii < fields.Count; ii++)
{
SimpleAttributeOperand field = fields[ii];
object value = e.EventFields[ii].Value;
// check if value provided.
if (value == null)
{
continue;
}
// extract the NodeId for the event.
if (field.BrowsePath.Count == 0)
{
if (field.AttributeId == Attributes.NodeId)
{
this.NodeId = value as NodeId;
continue;
}
}
// extract the type definition for the event.
if (field.BrowsePath.Count == 1)
{
if (field.AttributeId == Attributes.Value)
{
if (field.BrowsePath[0] == BrowseNames.EventType)
{
m_typeDefinitionId = value as NodeId;
continue;
}
}
}
// save value for child node.
NodeState parent = this;
for (int jj = 0; jj < field.BrowsePath.Count; jj++)
{
// find a predefined child identified by the browse name.
BaseInstanceState child = parent.CreateChild(context, field.BrowsePath[jj]);
// create a placeholder for unknown children.
if (child == null)
{
if (field.AttributeId == Attributes.Value)
{
child = new BaseDataVariableState(parent);
}
else
{
child = new BaseObjectState(parent);
}
parent.AddChild(child);
}
// ensure the browse name is set.
if (QualifiedName.IsNull(child.BrowseName))
{
child.BrowseName = field.BrowsePath[jj];
}
// ensure the display name is set.
if (LocalizedText.IsNullOrEmpty(child.DisplayName))
{
child.DisplayName = child.BrowseName.Name;
}
// process next element in path.
if (jj < field.BrowsePath.Count - 1)
{
parent = child;
continue;
}
// save the variable value.
if (field.AttributeId == Attributes.Value)
{
BaseVariableState variable = child as BaseVariableState;
if (variable != null && field.AttributeId == Attributes.Value)
{
try
{
variable.WrappedValue = e.EventFields[ii];
}
catch (Exception)
{
variable.Value = null;
}
}
break;
}
// save the node id.
child.NodeId = value as NodeId;
}
}
}
/// <summary>
/// Updates the effective state for the condition.
/// </summary>
/// <param name="context">The context.</param>
protected override void UpdateEffectiveState(ISystemContext context)
{
if (!this.EnabledState.Id.Value)
{
base.UpdateEffectiveState(context);
return;
}
StringBuilder builder = new StringBuilder();
string locale = null;
if (this.ActiveState.Value != null)
{
locale = this.ActiveState.Value.Locale;
if (this.ActiveState.Id.Value)
{
if (this.ActiveState.EffectiveDisplayName != null && !LocalizedText.IsNullOrEmpty(this.ActiveState.EffectiveDisplayName.Value))
{
builder.Append(this.ActiveState.EffectiveDisplayName.Value);
}
else
{
builder.Append(this.ActiveState.Value);
}
}
else
{
builder.Append(this.ActiveState.Value);
}
}
LocalizedText suppressedState = null;
if (this.SuppressedState != null)
{
if (this.SuppressedState.Id.Value)
{
suppressedState = this.SuppressedState.Value;
}
}
if (this.ShelvingState != null)
{
if (this.ShelvingState.CurrentState.Id.Value != ObjectIds.ShelvedStateMachineType_Unshelved)
{
suppressedState = this.ShelvingState.CurrentState.Value;
}
}
if (suppressedState != null)
{
builder.Append(" | ");
builder.Append(suppressedState);
}
LocalizedText ackState = null;
if (ConfirmedState != null)
{
if (!this.ConfirmedState.Id.Value)
{
ackState = this.ConfirmedState.Value;
}
}
if (AckedState != null)
{
if (!this.AckedState.Id.Value)
{
ackState = this.AckedState.Value;
}
}
if (ackState != null)
{
builder.Append(" | ");
builder.Append(ackState);
}
LocalizedText effectiveState = new LocalizedText(locale, builder.ToString());
SetEffectiveSubState(context, effectiveState, DateTime.MinValue);
}
/// <summary>
/// Creates a deep copy of the value.
/// </summary>
/// <remarks>
/// Creates a deep copy of the value.
/// </remarks>
/// <param name="value">The text to create an instance from</param>
/// <exception cref="ArgumentNullException">Thrown when the value is null</exception>
public LocalizedText(LocalizedText value) {
if (value == null) throw new ArgumentNullException("value");
m_locale = value.m_locale;
m_text = value.m_text;
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
/// <remarks>
/// The innerException is used to construct the innerResult.
/// </remarks>
public ServiceResult(
StatusCode code,
LocalizedText localizedText,
Exception innerException)
:
this(code, null, null, localizedText, null, innerException)
{
}
/// <summary>
/// Reads an LocalizedText from the stream.
/// </summary>
public LocalizedText ReadLocalizedText(string fieldName)
{
if (BeginField(fieldName, true))
{
PushNamespace(Namespaces.OpcUaXsd);
bool isNil = false;
string text = null;
string locale = null;
if (BeginField("Locale", true, out isNil))
{
locale = ReadString(null);
EndField("Locale");
}
else if (!isNil)
{
locale = String.Empty;
}
if (BeginField("Text", true, out isNil))
{
text = ReadString(null);
EndField("Text");
}
else if (!isNil)
{
text = String.Empty;
}
LocalizedText value = new LocalizedText(locale, text);
PopNamespace();
EndField(fieldName);
return value;
}
return LocalizedText.Null;
}
/// <summary>
/// Constructs a object from an exception.
/// </summary>
/// <remarks>
/// The defaultCode and defaultLocalizedText parameters are ignored for ServiceResultExceptions.
/// </remarks>
public ServiceResult(
Exception exception,
uint defaultCode,
LocalizedText defaultLocalizedText)
:
this(exception, defaultCode, null, null, defaultLocalizedText)
{
}
/// <summary>
/// Initializes the instance with the default values.
/// </summary>
protected override void Initialize(ISystemContext context)
{
SuperTypeId = Opc.Ua.NodeId.Create(Opc.Ua.VariableTypes.BaseVariableType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
NodeId = Opc.Ua.NodeId.Create(Opc.Ua.VariableTypes.PropertyType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
BrowseName = Opc.Ua.QualifiedName.Create(Opc.Ua.BrowseNames.PropertyType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
DisplayName = new LocalizedText(Opc.Ua.BrowseNames.PropertyType, String.Empty, Opc.Ua.BrowseNames.PropertyType);
Description = null;
WriteMask = AttributeWriteMask.None;
UserWriteMask = AttributeWriteMask.None;
IsAbstract = false;
Value = null;
DataType = Opc.Ua.NodeId.Create(Opc.Ua.DataTypes.BaseDataType, Opc.Ua.Namespaces.OpcUa, context.NamespaceUris);
ValueRank = ValueRanks.Any;
ArrayDimensions = null;
}
/// <summary>
/// Write the value for any non-value attribute.
/// </summary>
protected override ServiceResult WriteNonValueAttribute(
ISystemContext context,
uint attributeId,
object value)
{
ServiceResult result = null;
switch (attributeId)
{
case Attributes.InverseName:
{
LocalizedText inverseName = value as LocalizedText;
if (inverseName == null && value != null)
{
return(StatusCodes.BadTypeMismatch);
}
if ((WriteMask & AttributeWriteMask.InverseName) == 0)
{
return(StatusCodes.BadNotWritable);
}
if (OnWriteInverseName != null)
{
result = OnWriteInverseName(context, this, ref inverseName);
}
if (ServiceResult.IsGood(result))
{
InverseName = inverseName;
}
return(result);
}
case Attributes.Symmetric:
{
bool?symmetricRef = value as bool?;
if (symmetricRef == null)
{
return(StatusCodes.BadTypeMismatch);
}
if ((WriteMask & AttributeWriteMask.Symmetric) == 0)
{
return(StatusCodes.BadNotWritable);
}
bool symmetric = symmetricRef.Value;
if (OnWriteSymmetric != null)
{
result = OnWriteSymmetric(context, this, ref symmetric);
}
if (ServiceResult.IsGood(result))
{
Symmetric = symmetric;
}
return(result);
}
}
return(base.WriteNonValueAttribute(context, attributeId, value));
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
public ServiceResult(
StatusCode code,
LocalizedText localizedText)
:
this(code, (string)null, (string)null, localizedText, (string)null, (ServiceResult)null)
{
}
/// <summary>
/// Called when the Confirm method is called.
/// </summary>
/// <param name="context">The system context.</param>
/// <param name="method">The method being called.</param>
/// <param name="objectId">The id of the object.</param>
/// <param name="eventId">The identifier for the event which is the target for the comment.</param>
/// <param name="comment">The comment.</param>
/// <returns>Any error.</returns>
protected virtual ServiceResult OnConfirmCalled(
ISystemContext context,
MethodState method,
NodeId objectId,
byte[] eventId,
LocalizedText comment)
{
ServiceResult error = ProcessBeforeConfirm(context, eventId, comment);
if (ServiceResult.IsGood(error))
{
SetConfirmedState(context, true);
SetComment(context, comment, GetCurrentUserId(context));
}
if (this.AreEventsMonitored)
{
// report a state change event.
if (ServiceResult.IsGood(error))
{
ReportStateChange(context, false);
}
// raise the audit event.
AuditConditionConfirmEventState e = new AuditConditionConfirmEventState(null);
TranslationInfo info = new TranslationInfo(
"AuditConditionConfirm",
"en-US",
"The Confirm method was called.");
e.Initialize(
context,
this,
EventSeverity.Low,
new LocalizedText(info),
ServiceResult.IsGood(error),
DateTime.UtcNow);
e.SourceName.Value = "Attribute/Call";
e.MethodId = new PropertyState<NodeId>(e);
e.MethodId.Value = method.NodeId;
e.InputArguments = new PropertyState<object[]>(e);
e.InputArguments.Value = new object[] { eventId, comment };
ReportEvent(context, e);
}
return error;
}
/// <summary>
/// Constructs a object by specifying each property.
/// </summary>
/// <remarks>
/// The innerException is used to construct the innerResult.
/// </remarks>
public ServiceResult(
StatusCode code,
string symbolicId,
string namespaceUri,
LocalizedText localizedText,
Exception innerException)
:
this(code, symbolicId, namespaceUri, localizedText, null, innerException)
{
}
/// <summary>
/// Does any processing before adding a comment to a condition.
/// </summary>
/// <param name="context">The system context.</param>
/// <param name="eventId">The identifier for the event which is the target for the comment.</param>
/// <param name="comment">The comment.</param>
protected virtual ServiceResult ProcessBeforeConfirm(
ISystemContext context,
byte[] eventId,
LocalizedText comment)
{
if (eventId == null)
{
return StatusCodes.BadEventIdUnknown;
}
if (!this.EnabledState.Id.Value)
{
return StatusCodes.BadConditionDisabled;
}
if (OnConfirm != null)
{
try
{
return OnConfirm(context, this, eventId, comment);
}
catch (Exception e)
{
return ServiceResult.Create(e, StatusCodes.BadUnexpectedError, "Unexpected error confirming a Condition.");
}
}
return ServiceResult.Good;
}
/// <summary>
/// Constructs a object from an exception.
/// </summary>
/// <remarks>
/// The code, symbolicId, namespaceUri and localizedText parameters are ignored for ServiceResultExceptions.
/// </remarks>
public ServiceResult(
Exception e,
uint defaultCode,
string defaultSymbolicId,
string defaultNamespaceUri,
LocalizedText defaultLocalizedText)
{
ServiceResultException sre = e as ServiceResultException;
if (sre != null)
{
m_code = sre.StatusCode;
m_namespaceUri = sre.NamespaceUri;
m_symbolicId = sre.SymbolicId;
m_localizedText = sre.LocalizedText;
m_innerResult = sre.Result.InnerResult;
if (LocalizedText.IsNullOrEmpty(m_localizedText))
{
m_localizedText = defaultLocalizedText;
}
}
else
{
m_code = defaultCode;
m_symbolicId = defaultSymbolicId;
m_namespaceUri = defaultNamespaceUri;
m_localizedText = defaultLocalizedText;
}
m_additionalInfo = BuildExceptionTrace(e);
}
/// <summary>
/// Creates an object from a key and a LocalizedText.
/// </summary>
public TranslationInfo(string key, LocalizedText text)
{
m_key = key;
if (text != null)
{
m_text = text.Text;
m_locale = text.Locale;
}
}
/// <summary>
/// Initializes the object with a status code and a diagnostic info structure.
/// </summary>
public ServiceResult(StatusCode code, int index, DiagnosticInfoCollection diagnosticInfos, IList<string> stringTable)
{
m_code = (uint)code;
if (index >= 0 && diagnosticInfos != null && index < diagnosticInfos.Count)
{
DiagnosticInfo diagnosticInfo = diagnosticInfos[index];
if (diagnosticInfo != null)
{
m_namespaceUri = LookupString(stringTable, diagnosticInfo.NamespaceUri);
m_symbolicId = LookupString(stringTable, diagnosticInfo.SymbolicId);
string locale = LookupString(stringTable, diagnosticInfo.Locale);
string localizedText = LookupString(stringTable, diagnosticInfo.LocalizedText);
m_localizedText = new LocalizedText(locale, localizedText);
m_additionalInfo = diagnosticInfo.AdditionalInfo;
if (!StatusCode.IsGood(diagnosticInfo.InnerStatusCode))
{
m_innerResult = new ServiceResult(diagnosticInfo.InnerStatusCode, diagnosticInfo.InnerDiagnosticInfo, stringTable);
}
}
}
}
/// <summary>
/// Translates the discovery URLs based on the client url and returns an updated ApplicationDescription.
/// </summary>
/// <param name="clientUrl">The client URL.</param>
/// <param name="description">The application description.</param>
/// <param name="baseAddresses">The base addresses.</param>
/// <param name="applicationName">The localized application name.</param>
/// <returns>A copy of the application description</returns>
protected ApplicationDescription TranslateApplicationDescription(
Uri clientUrl,
ApplicationDescription description,
IList<BaseAddress> baseAddresses,
LocalizedText applicationName)
{
// get the discovery urls.
StringCollection discoveryUrls = new StringCollection();
foreach (BaseAddress baseAddress in baseAddresses)
{
discoveryUrls.Add(GetBestDiscoveryUrl(clientUrl, baseAddress));
}
// copy the description.
ApplicationDescription copy = new ApplicationDescription();
copy.ApplicationName = description.ApplicationName;
copy.ApplicationUri = description.ApplicationUri;
copy.ApplicationType = description.ApplicationType;
copy.ProductUri = description.ProductUri;
copy.GatewayServerUri = description.DiscoveryProfileUri;
copy.DiscoveryUrls = discoveryUrls;
if (!LocalizedText.IsNullOrEmpty(applicationName))
{
copy.ApplicationName = applicationName;
}
// return the copy.
return copy;
}
/// <summary>
/// Writes an LocalizedText to the stream.
/// </summary>
public void WriteLocalizedText(string fieldName, LocalizedText value)
{
if (UseReversibleEncoding)
{
PushStructure(fieldName);
WriteSimpleField("Text", value.Text.ToString(), true);
if (!String.IsNullOrEmpty(value.Locale))
{
WriteSimpleField("Locale", value.Locale.ToString(), true);
}
PopStructure();
}
else
{
WriteSimpleField(fieldName, value.Text, true);
}
}
/// <summary>
/// Updates the effective state for the condition.
/// </summary>
/// <param name="context">The context.</param>
protected override void UpdateEffectiveState(ISystemContext context)
{
if (!this.EnabledState.Id.Value)
{
base.UpdateEffectiveState(context);
return;
}
StringBuilder builder = new StringBuilder();
string locale = null;
if (this.ActiveState.Value != null)
{
locale = this.ActiveState.Value.Locale;
if (this.ActiveState.Id.Value)
{
if (this.ActiveState.EffectiveDisplayName != null && !LocalizedText.IsNullOrEmpty(this.ActiveState.EffectiveDisplayName.Value))
{
builder.Append(this.ActiveState.EffectiveDisplayName.Value);
}
else
{
builder.Append(this.ActiveState.Value);
}
}
else
{
builder.Append(this.ActiveState.Value);
}
}
LocalizedText suppressedState = null;
if (this.SuppressedState != null)
{
if (this.SuppressedState.Id.Value)
{
suppressedState = this.SuppressedState.Value;
}
}
if (this.ShelvingState != null)
{
if (this.ShelvingState.CurrentState.Id.Value != ObjectIds.ShelvedStateMachineType_Unshelved)
{
suppressedState = this.ShelvingState.CurrentState.Value;
}
}
if (suppressedState != null)
{
builder.Append(" | ");
builder.Append(suppressedState);
}
LocalizedText ackState = null;
if (!this.ConfirmedState.Id.Value)
{
if (!this.ConfirmedState.Id.Value)
{
ackState = this.ConfirmedState.Value;
}
}
if (!this.AckedState.Id.Value)
{
if (!this.AckedState.Id.Value)
{
ackState = this.AckedState.Value;
}
}
if (ackState != null)
{
builder.Append(" | ");
builder.Append(ackState);
}
LocalizedText effectiveState = new LocalizedText(locale, builder.ToString());
SetEffectiveSubState(context, effectiveState, DateTime.MinValue);
}
/// <summary>
/// Converts a value to a LocalizedText
/// </summary>
private static object ToLocalizedText(object value, BuiltInType sourceType)
{
// check for array conversions.
Array array = value as Array;
if (array != null)
{
LocalizedText[] output = new LocalizedText[array.Length];
for (int ii = 0; ii < array.Length; ii++)
{
output[ii] = (LocalizedText)Cast(array.GetValue(ii), BuiltInType.LocalizedText);
}
return output;
}
// handle for supported conversions.
switch (sourceType)
{
case BuiltInType.LocalizedText:
{
return (LocalizedText)value;
}
case BuiltInType.String:
{
return new LocalizedText((string)value);
}
}
// conversion not supported.
return null;
}
/// <summary>
/// Called when the Acknowledge method is called.
/// </summary>
/// <param name="context">The system context.</param>
/// <param name="method">The method being called.</param>
/// <param name="objectId">The id of the object.</param>
/// <param name="eventId">The identifier for the event which is the target for the comment.</param>
/// <param name="comment">The comment.</param>
/// <returns>Any error.</returns>
protected virtual ServiceResult OnAcknowledgeCalled(
ISystemContext context,
MethodState method,
NodeId objectId,
byte[] eventId,
LocalizedText comment)
{
ServiceResult error = ProcessBeforeAcknowledge(context, eventId, comment);
if (ServiceResult.IsGood(error))
{
AcknowledgeableConditionState branch = GetAcknowledgeableBranch(eventId);
if (branch != null)
{
branch.OnAcknowledgeCalled(context, method, objectId, eventId, comment);
if (SupportsConfirm())
{
ReplaceBranchEvent(eventId, branch);
}
else
{
RemoveBranchEvent(eventId);
}
}
else
{
SetAcknowledgedState(context, true);
if (SupportsConfirm())
{
SetConfirmedState(context, false);
}
}
// If this is a branch, the comment goes to both the branch and the original event
if (CanSetComment(comment))
{
SetComment(context, comment, GetCurrentUserId(context));
}
UpdateRetainState();
}
if (EventsMonitored())
{
// report a state change event.
if (ServiceResult.IsGood(error))
{
ReportStateChange(context, false);
}
// raise the audit event.
AuditConditionAcknowledgeEventState e = new AuditConditionAcknowledgeEventState(null);
TranslationInfo info = new TranslationInfo(
"AuditConditionAcknowledge",
"en-US",
"The Acknowledge method was called.");
e.Initialize(
context,
this,
EventSeverity.Low,
new LocalizedText(info),
ServiceResult.IsGood(error),
DateTime.UtcNow);
e.SourceName.Value = "Attribute/Call";
e.MethodId = new PropertyState <NodeId>(e);
e.MethodId.Value = method.NodeId;
e.InputArguments = new PropertyState <object[]>(e);
e.InputArguments.Value = new object[] { eventId, comment };
ReportEvent(context, e);
}
return(error);
}