public string FormatProperty(ReferenceDescriptionViewModel vm)
{
var fcm = this.ide?.ActiveDocument?.ProjectItem?.FileCodeModel;
var language = fcm?.Language ?? vsCMLanguageCSharp;
switch (language)
{
case vsCMLanguageCSharp:
if (vm.IsVariable)
{
if (vm.AccessLevel.HasFlag(AccessLevelFlags.CurrentWrite))
{
return(FormatSnippet(this.ValueFormatCSharp, vm.DisplayName, vm.FullName, FormatTypeName(vm.DataType, language), FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
return(FormatSnippet(this.ReadOnlyValueFormatCSharp, vm.DisplayName, vm.FullName, FormatTypeName(vm.DataType, language), FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
if (vm.IsMethod)
{
return(FormatSnippet(this.MethodFormatCSharp, vm.DisplayName, vm.FullName, MethodDataTypeCS, FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
if (vm.IsEventNotifier)
{
return(FormatSnippet(this.EventFormatCSharp, vm.DisplayName, vm.FullName, EventDataTypeCS, FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
break;
case vsCMLanguageVB:
if (vm.IsVariable)
{
if (vm.AccessLevel.HasFlag(AccessLevelFlags.CurrentWrite))
{
return(FormatSnippet(this.ValueFormatBasic, vm.DisplayName, vm.FullName, FormatTypeName(vm.DataType, language), FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
return(FormatSnippet(this.ReadOnlyValueFormatBasic, vm.DisplayName, vm.FullName, FormatTypeName(vm.DataType, language), FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
if (vm.IsMethod)
{
return(FormatSnippet(this.MethodFormatBasic, vm.DisplayName, vm.FullName, MethodDataTypeVB, FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
if (vm.IsEventNotifier)
{
return(FormatSnippet(this.EventFormatBasic, vm.DisplayName, vm.FullName, EventDataTypeVB, FormatNodeId(vm.NodeId, language), FormatNodeId(vm.Parent.NodeId, language), vm.BrowseName.ToString()));
}
break;
}
return(string.Empty);
}
private string GetFullName()
{
var name = new StringBuilder();
for (ReferenceDescriptionViewModel current = this; current != null; current = current.Parent)
{
if (current.NodeId == ObjectsFolder || current.NodeId == TypesFolder || current.NodeId == ViewsFolder)
{
break;
}
name.Insert(0, current.BrowseName.Name);
}
return(SafeCharsRegex.Replace(name.ToString(), "_"));
}
public MethodDescriptionViewModel(ReferenceDescription description, Parameter[] inArgs, Parameter[] outArgs, ReferenceDescriptionViewModel parent, Func <ReferenceDescriptionViewModel, Task> loadChildren)
: base(description, parent, loadChildren)
{
this.inArgs = inArgs;
this.outArgs = outArgs;
}
public ReadonlyPropertyDescriptionViewModel(ReferenceDescription description, string propertyType, ReferenceDescriptionViewModel parent, Func <ReferenceDescriptionViewModel, Task> loadChildren)
: base(description, parent, loadChildren)
{
this.propertyType = propertyType;
}
public async Task RefreshAsync(string url, string userName, string password)
{
var endpointUrl = url;
Trace.TraceInformation("BrowseAsync {0}", endpointUrl);
try
{
this.BrowseStop(null);
await [email protected](this.cts.Token);
this.NotifyPropertyChanged("IsLoading");
try
{
this.NamespaceItems.Clear();
if (this.channel != null)
{
try
{
await this.channel.CloseAsync();
}
catch (Exception)
{
}
this.channel = null;
}
this.EndpointUrl = endpointUrl;
this.userName = userName;
this.password = password;
if (string.IsNullOrEmpty(endpointUrl))
{
return;
}
if (this.History.Count == 0 || this.History[0] != endpointUrl)
{
this.History.Insert(0, endpointUrl);
}
while (this.History.Count > 5)
{
this.History.RemoveAt(5);
}
var root = new ReferenceDescriptionViewModel(new ReferenceDescription {
DisplayName = "Objects", NodeId = ExpandedNodeId.Parse(ObjectIds.ObjectsFolder), NodeClass = NodeClass.Object, TypeDefinition = ExpandedNodeId.Parse(ObjectTypeIds.FolderType)
}, null, AccessLevelFlags.None, EventNotifierFlags.None, null, this.LoadChildrenAsync);
this.NamespaceItems.Add(root);
root.IsExpanded = true;
}
finally
{
[email protected]();
this.NotifyPropertyChanged("IsLoading");
}
}
catch (OperationCanceledException)
{
}
}
private async Task LoadChildrenAsync(ReferenceDescriptionViewModel parent)
{
try
{
var token = this.cts.Token;
await [email protected](token);
this.NotifyPropertyChanged("IsLoading");
try
{
parent.Children.Clear();
do
{
try
{
if (this.channel == null || this.channel.State != CommunicationState.Opened)
{
var getEndpointsRequest = new GetEndpointsRequest
{
EndpointUrl = this.endpointUrl,
ProfileUris = new[] { TransportProfileUris.UaTcpTransport }
};
var getEndpointsResponse = await UaTcpDiscoveryClient.GetEndpointsAsync(getEndpointsRequest);
token.ThrowIfCancellationRequested();
var selectedEndpoint = getEndpointsResponse.Endpoints.OrderBy(e => e.SecurityLevel).First();
if (selectedEndpoint.UserIdentityTokens.Any(p => p.TokenType == UserTokenType.Anonymous))
{
this.HideLoginPanel();
this.userIdentity = new AnonymousIdentity();
}
else if (selectedEndpoint.UserIdentityTokens.Any(p => p.TokenType == UserTokenType.UserName))
{
if (!this.showingLoginPanel)
{
this.ShowLoginPanel();
return;
}
else if (!this.ValidateLoginCredentials())
{
return;
}
else
{
this.userIdentity = new UserNameIdentity(this.userName, this.password);
}
}
else
{
throw new NotImplementedException("Browser supports only UserName and Anonymous identity, for now.");
}
dataTypeCache = new Dictionary <ExpandedNodeId, Type>();
this.channel = new UaTcpSessionChannel(
this.localDescription,
this.CertificateStore,
this.userIdentity,
selectedEndpoint);
await this.channel.OpenAsync();
}
token.ThrowIfCancellationRequested();
var rds = new List <ReferenceDescription>();
var browseRequest = new BrowseRequest {
NodesToBrowse = new[] { new BrowseDescription {
NodeId = ExpandedNodeId.ToNodeId(parent.NodeId, this.channel.NamespaceUris), ReferenceTypeId = NodeId.Parse(ReferenceTypeIds.HierarchicalReferences), ResultMask = (uint)BrowseResultMask.TargetInfo, NodeClassMask = (uint)NodeClass.Variable | (uint)NodeClass.Object | (uint)NodeClass.Method, BrowseDirection = BrowseDirection.Forward, IncludeSubtypes = true
} }
};
var browseResponse = await this.channel.BrowseAsync(browseRequest);
rds.AddRange(browseResponse.Results.Where(result => result.References != null).SelectMany(result => result.References));
var continuationPoints = browseResponse.Results.Select(br => br.ContinuationPoint).Where(cp => cp != null).ToArray();
while (continuationPoints.Length > 0)
{
token.ThrowIfCancellationRequested();
var browseNextRequest = new BrowseNextRequest {
ContinuationPoints = continuationPoints, ReleaseContinuationPoints = false
};
var browseNextResponse = await this.channel.BrowseNextAsync(browseNextRequest);
rds.AddRange(browseResponse.Results.Where(result => result.References != null).SelectMany(result => result.References));
}
if (rds.Count == 0)
{
return;
}
foreach (var rd in rds)
{
token.ThrowIfCancellationRequested();
var n = ExpandedNodeId.ToNodeId(rd.NodeId, this.channel.NamespaceUris);
Type dataType = null;
EventNotifierFlags notifier = EventNotifierFlags.None;
AccessLevelFlags accessLevel = AccessLevelFlags.None;
if (rd.NodeClass == NodeClass.Variable)
{
var readRequest = new ReadRequest
{
NodesToRead = new ReadValueId[]
{
new ReadValueId {
NodeId = n, AttributeId = AttributeIds.DataType
},
new ReadValueId {
NodeId = n, AttributeId = AttributeIds.ValueRank
},
new ReadValueId {
NodeId = n, AttributeId = AttributeIds.UserAccessLevel
}
}
};
var readResponse = await this.channel.ReadAsync(readRequest);
ExpandedNodeId dataTypeId, origDataTypeId;
ReferenceDescription dataTypeRef;
var dataTypeNode = readResponse.Results[0].GetValueOrDefault(NodeId.Null);
if (dataTypeNode != NodeId.Null)
{
dataTypeId = origDataTypeId = NodeId.ToExpandedNodeId(dataTypeNode, this.channel.NamespaceUris);
if (!this.dataTypeCache.TryGetValue(dataTypeId, out dataType))
{
if (!UaTcpSecureChannel.DataTypeIdToTypeDictionary.TryGetValue(dataTypeId, out dataType))
{
do
{
dataTypeNode = ExpandedNodeId.ToNodeId(dataTypeId, this.channel.NamespaceUris);
var browseRequest2 = new BrowseRequest {
NodesToBrowse = new[] { new BrowseDescription {
NodeId = dataTypeNode, ReferenceTypeId = NodeId.Parse(ReferenceTypeIds.HasSubtype), ResultMask = (uint)BrowseResultMask.None, NodeClassMask = (uint)NodeClass.DataType, BrowseDirection = BrowseDirection.Inverse, IncludeSubtypes = false
} }
};
var browseResponse2 = await this.channel.BrowseAsync(browseRequest2);
dataTypeRef = browseResponse2.Results[0].References?.FirstOrDefault();
dataTypeId = dataTypeRef?.NodeId;
}while (dataTypeId != null && !UaTcpSecureChannel.DataTypeIdToTypeDictionary.TryGetValue(dataTypeId, out dataType));
if (dataTypeId == null)
{
dataType = typeof(object);
}
}
this.dataTypeCache.Add(origDataTypeId, dataType);
}
var valueRank = readResponse.Results[1].GetValueOrDefault(-1);
if (valueRank == 1)
{
dataType = dataType.MakeArrayType();
}
if (valueRank > 1)
{
dataType = dataType.MakeArrayType(valueRank);
}
}
else
{
dataType = typeof(object);
}
accessLevel = (AccessLevelFlags)Enum.ToObject(typeof(AccessLevelFlags), readResponse.Results[2].GetValueOrDefault <byte>());
}
else if (rd.NodeClass == NodeClass.Object)
{
var readRequest = new ReadRequest
{
NodesToRead = new ReadValueId[]
{
new ReadValueId {
NodeId = n, AttributeId = AttributeIds.EventNotifier
},
}
};
var readResponse = await this.channel.ReadAsync(readRequest);
notifier = (EventNotifierFlags)Enum.ToObject(typeof(EventNotifierFlags), readResponse.Results[0].GetValueOrDefault <byte>());
}
parent.Children.Add(new ReferenceDescriptionViewModel(rd, dataType, accessLevel, notifier, parent, this.LoadChildrenAsync));
await Task.Yield();
}
break; // exit while;
}
catch (OperationCanceledException ex)
{
// exit while;
}
catch (ServiceResultException ex)
{
Console.WriteLine("ServiceResultException: {0}", ex);
if (this.channel != null)
{
await this.channel.AbortAsync(token);
this.channel = null;
}
if (ex.HResult == unchecked ((int)StatusCodes.BadSessionIdInvalid))
{
continue;
}
}
catch (Exception ex)
{
Console.WriteLine("Exception {0}", ex);
if (this.channel != null)
{
await this.channel.AbortAsync(token);
this.channel = null;
}
}
try
{
await Task.Delay(5000, token);
}
catch (OperationCanceledException)
{
}
}while (!token.IsCancellationRequested);
}
catch (Exception ex)
{
Console.WriteLine("Exception {0}", ex);
}
finally
{
[email protected]();
this.NotifyPropertyChanged("IsLoading");
}
}
catch (OperationCanceledException)
{
// only get here if cancelled while waiting for lock
}
}
public ReferenceDescriptionViewModel(ReferenceDescription description, ReferenceDescriptionViewModel parent, Func <ReferenceDescriptionViewModel, Task> loadChildren)
: base(parent, true)
{
this.description = description;
this.loadChildren = loadChildren;
}
public EventDescriptionViewModel(ReferenceDescription description, ReferenceDescriptionViewModel parent, Func <ReferenceDescriptionViewModel, Task> loadChildren)
: base(description, parent, loadChildren)
{
}
public DataTypeDescriptionViewModel(ReferenceDescription description, ExpandedNodeId binaryEncodingId, XElement element, string targetNamespace, ReferenceDescriptionViewModel parent, Func <ReferenceDescriptionViewModel, Task> loadChildren)
: base(description, parent, loadChildren)
{
this.binaryEncodingId = binaryEncodingId;
this.element = element;
this.targetNamespace = targetNamespace;
this.baseType = parent.DisplayName;
}