public override void compileSingleCE(Rule.IRule rule)
{
ICondition[] conds = rule.Conditions;
ICondition condition = conds[0];
ExistCondition cond = (ExistCondition)condition;
BaseNode base_Renamed = cond.LastNode;
BaseJoin bjoin = new ExistJoinFrst(ruleCompiler.Engine.nextNodeId());
if (base_Renamed != null)
{
if (base_Renamed is BaseAlpha)
{
((BaseAlpha)base_Renamed).addSuccessorNode(bjoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
else if (base_Renamed is BaseJoin)
{
((BaseJoin)base_Renamed).addSuccessorNode(bjoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
}
else
{
// the rule doesn't have a literal constraint so we need to Add
// ExistJoinFrst as a child
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(cond.TemplateName);
otn.addSuccessorNode(bjoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
// important, do not call this before ExistJoinFrst is added
// if it's called first, the List<Object> will return index
// out of bound, since there's nothing in the list
cond.addNode(bjoin);
rule.addJoinNode(bjoin);
}
public override void compileSingleCE(Rule.IRule rule)
{
ICondition[] conds = rule.Conditions;
ObjectCondition oc = (ObjectCondition)conds[0];
if (oc.Negated)
{
// the ObjectCondition is negated, so we need to
// handle it appropriate. This means we need to
// Add a LIANode to _IntialFact and attach a NOTNode
// to the LIANode.
ObjectTypeNode otn = (ObjectTypeNode)ruleCompiler.Inputnodes.Get(ruleCompiler.Engine.InitFact);
LIANode lianode = ruleCompiler.findLIANode(otn);
NotJoin njoin = new NotJoin(ruleCompiler.Engine.nextNodeId());
njoin.Bindings = new Binding[0];
lianode.addSuccessorNode(njoin, ruleCompiler.Engine, ruleCompiler.Memory);
// Add the join to the rule object
rule.addJoinNode(njoin);
oc.LastNode.addSuccessorNode(njoin, ruleCompiler.Engine, ruleCompiler.Memory);
}
else if (oc.Nodes.Count == 0)
{
// this means the rule has a binding, but no conditions
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(oc.TemplateName);
LIANode lianode = new LIANode(ruleCompiler.Engine.nextNodeId());
otn.addSuccessorNode(lianode, ruleCompiler.Engine, ruleCompiler.Memory);
rule.Conditions[0].addNode(lianode);
}
}
public override void compileFirstJoin(ICondition condition, Rule.IRule rule)
{
ObjectCondition cond = (ObjectCondition)condition;
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(cond.TemplateName);
// the LeftInputAdapterNode is the first node to propogate to
// the first joinNode of the rule
LIANode node = new LIANode(ruleCompiler.Engine.nextNodeId());
// if the condition doesn't have any nodes, we want to Add it to
// the objectType node if one doesn't already exist.
// otherwise we Add it to the last AlphaNode
if (cond.Nodes.Count == 0)
{
// try to find the existing LIANode for the given ObjectTypeNode
// if we don't do this, we end up with multiple LIANodes
// descending directly from the ObjectTypeNode
LIANode existingLIANode = ruleCompiler.findLIANode(otn);
if (existingLIANode == null)
{
otn.addSuccessorNode(node, ruleCompiler.Engine, ruleCompiler.Memory);
cond.addNode(node);
}
else
{
existingLIANode.incrementUseCount();
cond.addNode(existingLIANode);
}
}
else
{
// Add the LeftInputAdapterNode to the last alphaNode
// In the case of node sharing, the LIANode could be the last
// alphaNode, so we have to check and only Add the node to
// the condition if it isn't a LIANode
BaseAlpha old = (BaseAlpha)cond.LastNode;
//if the last node of condition has a LIANode successor,
//the LIANode should be shared with the new CE followed by another CE.
// Houzhanbin,10/16/2007
BaseNode[] successors = (BaseNode[])old.SuccessorNodes;
for (int i = 0; i < successors.Length; i++)
{
if (successors[i] is LIANode)
{
cond.addNode(successors[i]);
return;
}
}
if (!(old is LIANode))
{
old.addSuccessorNode(node, ruleCompiler.Engine, ruleCompiler.Memory);
cond.addNode(node);
}
}
}
private async Task BuildViewAsync(ConnectionNode connectionNode)
{
connectionNode.Nodes.Clear();
try
{
pbMain.Visible = true;
await _scriptManager.GenerateScriptAsync(connectionNode.ConnectionName, new Progress <MergeProgress>(ShowProgress));
if (!_scriptManager.Actions.Any())
{
btnExecute.Enabled = false;
tbScript.Text = $"{_scriptManager.Syntax.CommentPrefix} Nothing to execute -- no model differences were found.";
return;
}
tbScript.Text = _scriptManager.Script.ToString();
foreach (var actionTypeGrp in _scriptManager.Actions.GroupBy(item => item.ActionType))
{
ActionTypeNode actionTypeNode = new ActionTypeNode(actionTypeGrp.Key, actionTypeGrp.Count());
connectionNode.Nodes.Add(actionTypeNode);
foreach (var objectTypeGrp in actionTypeGrp.GroupBy(item => item.ObjectType))
{
ObjectTypeNode objectTypeNode = new ObjectTypeNode(objectTypeGrp.Key, objectTypeGrp.Count());
actionTypeNode.Nodes.Add(objectTypeNode);
foreach (var action in objectTypeGrp)
{
ActionNode ndAction = new ActionNode(action);
ndAction.StartLine = _scriptManager.LineRanges[action].Start;
ndAction.EndLine = _scriptManager.LineRanges[action].End;
ndAction.ValidationErrors = _scriptManager.ValidationErrors[action].ToArray();
objectTypeNode.Nodes.Add(ndAction);
}
}
}
connectionNode.Checked = true;
connectionNode.ExpandAll();
}
finally
{
pbMain.Visible = false;
string status = "Ready";
if (_scriptManager.Stopwatch != null)
{
status += $", ran in {_scriptManager.Stopwatch.ElapsedMilliseconds:n0}ms";
}
tslStatus.Text = status;
}
}
public void testOneSlot()
{
Defclass dc = new Defclass(typeof(TestBean2));
Deftemplate dtemp = dc.createDeftemplate("testBean2");
TestBean2 bean = new TestBean2();
Slot[] slts = dtemp.AllSlots;
ObjectTypeNode otn = new ObjectTypeNode(1, dtemp);
AlphaNode an = new AlphaNode(1);
slts[0].Value = ConversionUtils.convert(110);
an.Operator = Constants.EQUAL;
an.Slot = (slts[0]);
Console.WriteLine("node::" + an.ToString());
Assert.IsNotNull(an.ToString(), "Should have a value.");
}
public void testTwoSlots()
{
Defclass dc = new Defclass(typeof(TestBean2));
Deftemplate dtemp = dc.createDeftemplate("testBean2");
TestBean2 bean = new TestBean2();
Slot[] slts = dtemp.AllSlots;
ObjectTypeNode otn = new ObjectTypeNode(1, dtemp);
AlphaNode an1 = new AlphaNode(1);
AlphaNode an2 = new AlphaNode(1);
slts[0].Value = ("testString");
slts[1].Value = (ConversionUtils.convert(999));
an1.Slot = (slts[0]);
an1.Operator = (Constants.EQUAL);
Console.WriteLine("node::" + an1.toPPString());
Assert.IsNotNull(an1.toPPString());
an2.Slot = (slts[1]);
an2.Operator = (Constants.GREATER);
Console.WriteLine("node::" + an2.toPPString());
Assert.IsNotNull(an2.toPPString());
}
/// <summary> The first step is to connect the exist join to the parent on the left side.
/// The second step is to connect it to the parent on the right. For the right
/// side, if the objectCondition doesn't have any nodes, we attach it to the
/// objectType node.
/// </summary>
public void connectJoinNode(ICondition previousCondition, ICondition condition, BaseJoin previousJoinNode, BaseJoin joinNode)
{
if (previousJoinNode != null)
{
ruleCompiler.attachJoinNode(previousJoinNode, (BaseJoin)joinNode);
}
else
{
ruleCompiler.attachJoinNode(previousCondition.LastNode, (BaseJoin)joinNode);
}
// Current we have to Add the ExistJoin for the right side, which should be either
// an alphaNode or the objectTypeNode
ObjectCondition oc = getObjectCondition(condition);
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(oc.TemplateName);
if (oc.Nodes.Count > 0)
{
ruleCompiler.attachJoinNode(oc.LastNode, (BaseJoin)joinNode);
}
else
{
otn.addSuccessorNode(joinNode, ruleCompiler.Engine, ruleCompiler.Engine.WorkingMemory);
}
}
public Node ReadNode(NodeId nodeId)
{
// build list of attributes.
SortedDictionary<uint,DataValue> attributes = new SortedDictionary<uint,DataValue>();
attributes.Add(Attributes.NodeId, null);
attributes.Add(Attributes.NodeClass, null);
attributes.Add(Attributes.BrowseName, null);
attributes.Add(Attributes.DisplayName, null);
attributes.Add(Attributes.Description, null);
attributes.Add(Attributes.WriteMask, null);
attributes.Add(Attributes.UserWriteMask, null);
attributes.Add(Attributes.DataType, null);
attributes.Add(Attributes.ValueRank, null);
attributes.Add(Attributes.ArrayDimensions, null);
attributes.Add(Attributes.AccessLevel, null);
attributes.Add(Attributes.UserAccessLevel, null);
attributes.Add(Attributes.Historizing, null);
attributes.Add(Attributes.MinimumSamplingInterval, null);
attributes.Add(Attributes.EventNotifier, null);
attributes.Add(Attributes.Executable, null);
attributes.Add(Attributes.UserExecutable, null);
attributes.Add(Attributes.IsAbstract, null);
attributes.Add(Attributes.InverseName, null);
attributes.Add(Attributes.Symmetric, null);
attributes.Add(Attributes.ContainsNoLoops, null);
// build list of values to read.
ReadValueIdCollection itemsToRead = new ReadValueIdCollection();
foreach (uint attributeId in attributes.Keys)
{
ReadValueId itemToRead = new ReadValueId();
itemToRead.NodeId = nodeId;
itemToRead.AttributeId = attributeId;
itemsToRead.Add(itemToRead);
}
// read from server.
DataValueCollection values = null;
DiagnosticInfoCollection diagnosticInfos = null;
ResponseHeader responseHeader = Read(
null,
0,
TimestampsToReturn.Neither,
itemsToRead,
out values,
out diagnosticInfos);
ClientBase.ValidateResponse(values, itemsToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, itemsToRead);
// process results.
int? nodeClass = null;
for (int ii = 0; ii < itemsToRead.Count; ii++)
{
uint attributeId = itemsToRead[ii].AttributeId;
// the node probably does not exist if the node class is not found.
if (attributeId == Attributes.NodeClass)
{
if (!DataValue.IsGood(values[ii]))
{
throw ServiceResultException.Create(values[ii].StatusCode, ii, diagnosticInfos, responseHeader.StringTable);
}
// check for valid node class.
nodeClass = values[ii].Value as int?;
if (nodeClass == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Node does not have a valid value for NodeClass: {0}.", values[ii].Value);
}
}
else
{
if (!DataValue.IsGood(values[ii]))
{
// check for unsupported attributes.
if (values[ii].StatusCode == StatusCodes.BadAttributeIdInvalid)
{
continue;
}
// all supported attributes must be readable.
if (attributeId != Attributes.Value)
{
throw ServiceResultException.Create(values[ii].StatusCode, ii, diagnosticInfos, responseHeader.StringTable);
}
}
}
attributes[attributeId] = values[ii];
}
Node node = null;
DataValue value = null;
switch ((NodeClass)nodeClass.Value)
{
default:
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Node does not have a valid value for NodeClass: {0}.", nodeClass.Value);
}
case NodeClass.Object:
{
ObjectNode objectNode = new ObjectNode();
value = attributes[Attributes.EventNotifier];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Object does not support the EventNotifier attribute.");
}
objectNode.EventNotifier = (byte)attributes[Attributes.EventNotifier].GetValue(typeof(byte));
node = objectNode;
break;
}
case NodeClass.ObjectType:
{
ObjectTypeNode objectTypeNode = new ObjectTypeNode();
value = attributes[Attributes.IsAbstract];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "ObjectType does not support the IsAbstract attribute.");
}
objectTypeNode.IsAbstract = (bool)attributes[Attributes.IsAbstract].GetValue(typeof(bool));
node = objectTypeNode;
break;
}
case NodeClass.Variable:
{
VariableNode variableNode = new VariableNode();
// DataType Attribute
value = attributes[Attributes.DataType];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Variable does not support the DataType attribute.");
}
variableNode.DataType = (NodeId)attributes[Attributes.DataType].GetValue(typeof(NodeId));
// ValueRank Attribute
value = attributes[Attributes.ValueRank];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Variable does not support the ValueRank attribute.");
}
variableNode.ValueRank = (int)attributes[Attributes.ValueRank].GetValue(typeof(int));
// ArrayDimensions Attribute
value = attributes[Attributes.ArrayDimensions];
if (value != null)
{
if (value.Value == null)
{
variableNode.ArrayDimensions = new uint[0];
}
else
{
variableNode.ArrayDimensions = (uint[])value.GetValue(typeof(uint[]));
}
}
// AccessLevel Attribute
value = attributes[Attributes.AccessLevel];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Variable does not support the AccessLevel attribute.");
}
variableNode.AccessLevel = (byte)attributes[Attributes.AccessLevel].GetValue(typeof(byte));
// UserAccessLevel Attribute
value = attributes[Attributes.UserAccessLevel];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Variable does not support the UserAccessLevel attribute.");
}
variableNode.UserAccessLevel = (byte)attributes[Attributes.UserAccessLevel].GetValue(typeof(byte));
// Historizing Attribute
value = attributes[Attributes.Historizing];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Variable does not support the Historizing attribute.");
}
variableNode.Historizing = (bool)attributes[Attributes.Historizing].GetValue(typeof(bool));
// MinimumSamplingInterval Attribute
value = attributes[Attributes.MinimumSamplingInterval];
if (value != null)
{
variableNode.MinimumSamplingInterval = Convert.ToDouble(attributes[Attributes.MinimumSamplingInterval].Value);
}
node = variableNode;
break;
}
case NodeClass.VariableType:
{
VariableTypeNode variableTypeNode = new VariableTypeNode();
// IsAbstract Attribute
value = attributes[Attributes.IsAbstract];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "VariableType does not support the IsAbstract attribute.");
}
variableTypeNode.IsAbstract = (bool)attributes[Attributes.IsAbstract].GetValue(typeof(bool));
// DataType Attribute
value = attributes[Attributes.DataType];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "VariableType does not support the DataType attribute.");
}
variableTypeNode.DataType = (NodeId)attributes[Attributes.DataType].GetValue(typeof(NodeId));
// ValueRank Attribute
value = attributes[Attributes.ValueRank];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "VariableType does not support the ValueRank attribute.");
}
variableTypeNode.ValueRank = (int)attributes[Attributes.ValueRank].GetValue(typeof(int));
// ArrayDimensions Attribute
value = attributes[Attributes.ArrayDimensions];
if (value != null && value.Value != null)
{
variableTypeNode.ArrayDimensions = (uint[])attributes[Attributes.ArrayDimensions].GetValue(typeof(uint[]));
}
node = variableTypeNode;
break;
}
case NodeClass.Method:
{
MethodNode methodNode = new MethodNode();
// Executable Attribute
value = attributes[Attributes.Executable];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Method does not support the Executable attribute.");
}
methodNode.Executable = (bool)attributes[Attributes.Executable].GetValue(typeof(bool));
// UserExecutable Attribute
value = attributes[Attributes.UserExecutable];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Method does not support the UserExecutable attribute.");
}
methodNode.UserExecutable = (bool)attributes[Attributes.UserExecutable].GetValue(typeof(bool));
node = methodNode;
break;
}
case NodeClass.DataType:
{
DataTypeNode dataTypeNode = new DataTypeNode();
// IsAbstract Attribute
value = attributes[Attributes.IsAbstract];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "DataType does not support the IsAbstract attribute.");
}
dataTypeNode.IsAbstract = (bool)attributes[Attributes.IsAbstract].GetValue(typeof(bool));
node = dataTypeNode;
break;
}
case NodeClass.ReferenceType:
{
ReferenceTypeNode referenceTypeNode = new ReferenceTypeNode();
// IsAbstract Attribute
value = attributes[Attributes.IsAbstract];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "ReferenceType does not support the IsAbstract attribute.");
}
referenceTypeNode.IsAbstract = (bool)attributes[Attributes.IsAbstract].GetValue(typeof(bool));
// Symmetric Attribute
value = attributes[Attributes.Symmetric];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "ReferenceType does not support the Symmetric attribute.");
}
referenceTypeNode.Symmetric = (bool)attributes[Attributes.IsAbstract].GetValue(typeof(bool));
// InverseName Attribute
value = attributes[Attributes.InverseName];
if (value != null && value.Value != null)
{
referenceTypeNode.InverseName = (LocalizedText)attributes[Attributes.InverseName].GetValue(typeof(LocalizedText));
}
node = referenceTypeNode;
break;
}
case NodeClass.View:
{
ViewNode viewNode = new ViewNode();
// EventNotifier Attribute
value = attributes[Attributes.EventNotifier];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "View does not support the EventNotifier attribute.");
}
viewNode.EventNotifier = (byte)attributes[Attributes.EventNotifier].GetValue(typeof(byte));
// ContainsNoLoops Attribute
value = attributes[Attributes.ContainsNoLoops];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "View does not support the ContainsNoLoops attribute.");
}
viewNode.ContainsNoLoops = (bool)attributes[Attributes.ContainsNoLoops].GetValue(typeof(bool));
node = viewNode;
break;
}
}
// NodeId Attribute
value = attributes[Attributes.NodeId];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Node does not support the NodeId attribute.");
}
node.NodeId = (NodeId)attributes[Attributes.NodeId].GetValue(typeof(NodeId));
node.NodeClass = (NodeClass)nodeClass.Value;
// BrowseName Attribute
value = attributes[Attributes.BrowseName];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Node does not support the BrowseName attribute.");
}
node.BrowseName = (QualifiedName)attributes[Attributes.BrowseName].GetValue(typeof(QualifiedName));
// DisplayName Attribute
value = attributes[Attributes.DisplayName];
if (value == null)
{
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError, "Node does not support the DisplayName attribute.");
}
node.DisplayName = (LocalizedText)attributes[Attributes.DisplayName].GetValue(typeof(LocalizedText));
// Description Attribute
value = attributes[Attributes.Description];
if (value != null && value.Value != null)
{
node.Description = (LocalizedText)attributes[Attributes.Description].GetValue(typeof(LocalizedText));
}
// WriteMask Attribute
value = attributes[Attributes.WriteMask];
if (value != null)
{
node.WriteMask = (uint)attributes[Attributes.WriteMask].GetValue(typeof(uint));
}
// UserWriteMask Attribute
value = attributes[Attributes.UserWriteMask];
if (value != null)
{
node.WriteMask = (uint)attributes[Attributes.UserWriteMask].GetValue(typeof(uint));
}
return node;
}
/// <summary>
/// Creates an ObjectType node in the address space.
/// </summary>
public NodeId CreateObjectType(
NodeId parentId,
NodeId nodeId,
QualifiedName browseName,
ObjectTypeAttributes attributes)
{
try
{
m_lock.Enter();
// validate browse name.
if (QualifiedName.IsNull(browseName))
{
throw ServiceResultException.Create(StatusCodes.BadBrowseNameInvalid, "BrowseName must not be empty.");
}
// check for null node id.
if (NodeId.IsNull(nodeId))
{
nodeId = CreateUniqueNodeId();
}
// check if node id exists.
if (m_nodes.Exists(nodeId))
{
throw ServiceResultException.Create(StatusCodes.BadNodeIdExists, "NodeId '{0}' already exists.", nodeId);
}
// set the BaseObjectType as the default.
if (parentId == null)
{
parentId = ObjectTypes.BaseObjectType;
}
// find parent.
IObjectType parent = GetManagerHandle(parentId) as IObjectType;
if (parent == null)
{
throw ServiceResultException.Create(StatusCodes.BadParentNodeIdInvalid, "Parent node '{0}' does not exist or is not an ObjectType.", parentId);
}
// validate reference.
ValidateReference(parent, ReferenceTypeIds.HasSubtype, false, NodeClass.ObjectType);
// create node.
ObjectTypeNode node = new ObjectTypeNode();
node.NodeId = nodeId;
node.NodeClass = NodeClass.ObjectType;
node.BrowseName = browseName;
UpdateAttributes(node, attributes);
// IsAbstract
if (attributes != null && (attributes.SpecifiedAttributes & (uint)NodeAttributesMask.IsAbstract) != 0)
{
node.IsAbstract = attributes.IsAbstract;
}
else
{
node.IsAbstract = false;
}
// add reference from parent.
AddReference(parent, ReferenceTypeIds.HasSubtype, false, node, true);
// add the node.
AddNode(node);
// return the new node id.
return node.NodeId;
}
finally
{
m_lock.Exit();
}
}
/// <summary> Compile a single ObjectCondition and create the alphaNodes and/or Bindings
/// </summary>
public override void compile(ICondition condition, int position, Rule.IRule rule, bool alphaMemory)
{
TemporalCondition cond = (TemporalCondition)condition;
ObjectTypeNode otn = ruleCompiler.findObjectTypeNode(cond.TemplateName);
// we set remember match to false, since the rule is temporal
bool switchMatch = false;
if (rule.RememberMatch)
{
rule.RememberMatch = false;
switchMatch = true;
}
if (otn != null)
{
BaseAlpha2 first = null;
BaseAlpha2 previous = null;
BaseAlpha2 current = null;
ITemplate templ = cond.Deftemplate;
IConstraint[] constrs = cond.Constraints;
for (int idx = 0; idx < constrs.Length; idx++)
{
IConstraint cnstr = constrs[idx];
if (cnstr is LiteralConstraint)
{
current = ruleCompiler.compileConstraint((LiteralConstraint)cnstr, templ, rule);
}
else if (cnstr is AndLiteralConstraint)
{
current = ruleCompiler.compileConstraint((AndLiteralConstraint)cnstr, templ, rule);
}
else if (cnstr is OrLiteralConstraint)
{
current = ruleCompiler.compileConstraint((OrLiteralConstraint)cnstr, templ, rule);
}
else if (cnstr is BoundConstraint)
{
ruleCompiler.compileConstraint((BoundConstraint)cnstr, templ, rule, position);
}
else if (cnstr is PredicateConstraint)
{
current = ruleCompiler.compileConstraint((PredicateConstraint)cnstr, templ, rule, position);
}
// we Add the node to the previous
if (first == null)
{
first = current;
previous = current;
}
else if (current != previous)
{
try
{
previous.addSuccessorNode(current, ruleCompiler.Engine, ruleCompiler.Memory);
// now set the previous to current
previous = current;
}
catch (AssertException e)
{
// send an event
}
}
}
if (first != null)
{
attachAlphaNode(otn, first, cond);
}
}
if (!cond.Negated)
{
position++;
}
if (switchMatch)
{
rule.RememberMatch = true;
}
}
/// <summary>
/// Returns the value of an attribute.
/// </summary>
public void Read(
ReadValueId request,
DataValue result,
DiagnosticInfo diagnosticInfo)
{
lock (m_lock)
{
// find the node to read.
Node source = m_nodes.Find(request.NodeId);
result.ServerTimestamp = DateTime.UtcNow;
if (source == null)
{
result.StatusCode = new StatusCode(StatusCodes.BadNodeIdUnknown);
return;
}
result.Value = Variant.Null;
// switch on the attribute value.
switch (request.AttributeId)
{
case Attributes.NodeId:
{
result.Value = new Variant(source.NodeId);
break;
}
case Attributes.NodeClass:
{
result.Value = new Variant(DataTypes.EnumToMask(source.NodeClass));
break;
}
case Attributes.BrowseName:
{
result.Value = new Variant(source.BrowseName);
break;
}
case Attributes.DisplayName:
{
result.Value = new Variant(source.DisplayName);
break;
}
case Attributes.Description:
{
result.Value = new Variant(source.Description);
break;
}
case Attributes.WriteMask:
{
result.Value = new Variant(source.WriteMask);
break;
}
case Attributes.UserWriteMask:
{
result.Value = new Variant(source.UserWriteMask);
break;
}
case Attributes.Value:
{
// check if another component has installed a read callback.
ReadValueEventHandler callback = null;
if (m_callbacks.TryGetValue(source.NodeId.Identifier, out callback))
{
result.Value = new Variant(callback());
break;
}
// use the value cached in the node otherwise.
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = variable.Value;
result.SourceTimestamp = DateTime.UtcNow; // The Value attribute requires a SourceTimestamp.
break;
}
VariableTypeNode variableType = source as VariableTypeNode;
if (variableType != null)
{
result.Value = variableType.Value;
result.SourceTimestamp = DateTime.UtcNow; // The Value attribute requires a SourceTimestamp.
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.DataType:
{
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = new Variant(variable.DataType);
break;
}
VariableTypeNode variableType = source as VariableTypeNode;
if (variableType != null)
{
result.Value = new Variant(variableType.DataType);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.ValueRank:
{
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = new Variant(variable.ValueRank);
break;
}
VariableTypeNode variableType = source as VariableTypeNode;
if (variableType != null)
{
result.Value = new Variant(variableType.ValueRank);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.MinimumSamplingInterval:
{
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = new Variant(variable.MinimumSamplingInterval);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.Historizing:
{
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = new Variant(variable.Historizing);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.AccessLevel:
{
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = new Variant(variable.AccessLevel);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.UserAccessLevel:
{
VariableNode variable = source as VariableNode;
if (variable != null)
{
result.Value = new Variant(variable.UserAccessLevel);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.EventNotifier:
{
ObjectNode objectn = source as ObjectNode;
if (objectn != null)
{
result.Value = new Variant(objectn.EventNotifier);
break;
}
ViewNode view = source as ViewNode;
if (view != null)
{
result.Value = new Variant(view.EventNotifier);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.Executable:
{
MethodNode method = source as MethodNode;
if (method != null)
{
result.Value = new Variant(method.Executable);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.UserExecutable:
{
MethodNode method = source as MethodNode;
if (method != null)
{
result.Value = new Variant(method.UserExecutable);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.ContainsNoLoops:
{
ViewNode view = source as ViewNode;
if (view != null)
{
result.Value = new Variant(view.ContainsNoLoops);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.InverseName:
{
ReferenceTypeNode referenceType = source as ReferenceTypeNode;
if (referenceType != null)
{
result.Value = new Variant(referenceType.InverseName);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.IsAbstract:
{
DataTypeNode dataType = source as DataTypeNode;
if (dataType != null)
{
result.Value = new Variant(dataType.IsAbstract);
break;
}
ReferenceTypeNode referenceType = source as ReferenceTypeNode;
if (referenceType != null)
{
result.Value = new Variant(referenceType.IsAbstract);
break;
}
ObjectTypeNode objectType = source as ObjectTypeNode;
if (objectType != null)
{
result.Value = new Variant(objectType.IsAbstract);
break;
}
VariableTypeNode variableType = source as VariableTypeNode;
if (variableType != null)
{
result.Value = new Variant(variableType.IsAbstract);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
case Attributes.Symmetric:
{
ReferenceTypeNode referenceType = source as ReferenceTypeNode;
if (referenceType != null)
{
result.Value = new Variant(referenceType.Symmetric);
break;
}
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
default:
{
result.StatusCode = new StatusCode(StatusCodes.BadAttributeIdInvalid);
break;
}
}
}
}