Esempio n. 1
0
 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 public Browser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable<IReference> additionalReferences,
     bool internalOnly,
     Opc.Ua.Client.Session client,
     NamespaceMapper mapper,
     NodeState source,
     NodeId rootId)
 :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_client = client;
     m_mapper = mapper;
     m_source = source;
     m_rootId = rootId;
     m_stage = Stage.Begin;
 }
Esempio n. 2
0
 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 /// <param name="context">The system context to use.</param>
 /// <param name="view">The view which may restrict the set of references/nodes found.</param>
 /// <param name="referenceType">The type of references being followed.</param>
 /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
 /// <param name="browseDirection">Which way the references are being followed.</param>
 /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
 /// <param name="additionalReferences">Any additional references that should be included.</param>
 /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
 /// <param name="itemId">The item id.</param>
 /// <param name="namespaceIndex">Index of the namespace.</param>
 public DaElementBrowser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable <IReference> additionalReferences,
     bool internalOnly,
     string itemId,
     ushort namespaceIndex)
     :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_itemId         = itemId;
     m_namespaceIndex = namespaceIndex;
     m_stage          = Stage.Begin;
 }
        /// <summary>
        /// Creates a new browser object with a set of filters.
        /// </summary>
        public NodeBrowser(
            ISystemContext context,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable<IReference> additionalReferences,
            bool internalOnly)
        {
            m_context = context;
            m_view = view;
            m_referenceType = referenceType;
            m_includeSubtypes = includeSubtypes;
            m_browseDirection = browseDirection;
            m_browseName = browseName;
            m_internalOnly = internalOnly;
            m_references = new List<IReference>();
            m_index = 0;

            // add any additional references if they meet the criteria.
            if (additionalReferences != null)
            {
                foreach (IReference reference in additionalReferences)
                {
                    if (IsRequired(reference.ReferenceTypeId, reference.IsInverse))
                    {
                        m_references.Add(reference);
                    }
                }
            }
        }
Esempio n. 4
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        /// <summary>
        /// Creates a new browser object with a set of filters.
        /// </summary>
        public AreaBrowser(
            ISystemContext context,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable<IReference> additionalReferences,
            bool internalOnly,
            AreaState area)
        :
            base(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly)
        {
            m_stage = Stage.Begin;

            if (area != null)
            {
                m_area = AreaState.GetDirectory(context, area.NodeId);
                m_isRoot = area.IsRoot;
            }
        }
Esempio n. 5
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        /// <summary>
        /// Creates a new browser object with a set of filters.
        /// </summary>
        public NodeBrowser(
            ISystemContext context,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable <IReference> additionalReferences,
            bool internalOnly)
        {
            m_context         = context;
            m_view            = view;
            m_referenceType   = referenceType;
            m_includeSubtypes = includeSubtypes;
            m_browseDirection = browseDirection;
            m_browseName      = browseName;
            m_internalOnly    = internalOnly;
            m_references      = new List <IReference>();
            m_index           = 0;

            // add any additional references if they meet the criteria.
            if (additionalReferences != null)
            {
                foreach (IReference reference in additionalReferences)
                {
                    if (IsRequired(reference.ReferenceTypeId, reference.IsInverse))
                    {
                        m_references.Add(reference);
                    }
                }
            }
        }
Esempio n. 6
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        /// <summary>
        /// Creates a new browser object with a set of filters.
        /// </summary>
        public AreaBrowser(
            ISystemContext context,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable <IReference> additionalReferences,
            bool internalOnly,
            AreaState area)
            :
            base(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly)
        {
            m_stage = Stage.Begin;

            if (area != null)
            {
                m_area   = AreaState.GetDirectory(context, area.NodeId);
                m_isRoot = area.IsRoot;
            }
        }
Esempio n. 7
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        /// <summary>
        /// Creates a browser that finds the references to the branch.
        /// </summary>
        /// <param name="context">The system context to use.</param>
        /// <param name="view">The view which may restrict the set of references/nodes found.</param>
        /// <param name="referenceType">The type of references being followed.</param>
        /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
        /// <param name="browseDirection">Which way the references are being followed.</param>
        /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
        /// <param name="additionalReferences">Any additional references that should be included.</param>
        /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
        /// <returns>The browse object (must be disposed).</returns>
        public override INodeBrowser CreateBrowser(
            ISystemContext context,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable <IReference> additionalReferences,
            bool internalOnly)
        {
            NodeBrowser browser = new HdaElementBrower(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly,
                m_itemId,
                TypeDefinitionId,
                BrowseName,
                this.NodeId.NamespaceIndex);

            PopulateBrowser(context, browser);

            return(browser);
        }
Esempio n. 8
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        /// <summary>
        /// Adds the targets of references to the control.
        /// </summary>
        private void AddReferences(NodeId referenceTypeId, BrowseDirection browseDirection)
        {
            // fetch the attributes for the reference type.
            INode referenceType = m_session.NodeCache.Find(referenceTypeId);

            if (referenceType == null)
            {
                return;
            }

            // browse for the references.
            Browser browser = new Browser(m_session);

            browser.BrowseDirection   = browseDirection;
            browser.ReferenceTypeId   = referenceTypeId;
            browser.IncludeSubtypes   = true;
            browser.NodeClassMask     = 0;
            browser.ContinueUntilDone = true;

            ReferenceDescriptionCollection references = browser.Browse(m_nodeId);

            // add results to list.
            foreach (ReferenceDescription reference in references)
            {
                NodeField field = new NodeField();

                field.Name       = referenceType.ToString();
                field.Value      = reference.ToString();
                field.StatusCode = StatusCodes.Good;

                AddItem(field, "ReferenceType", -1);
            }
        }
Esempio n. 9
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        /// <summary>
        /// Creates a browser that explores the structure of the block.
        /// </summary>
        /// <param name="context">The system context to use.</param>
        /// <param name="view">The view which may restrict the set of references/nodes found.</param>
        /// <param name="referenceType">The type of references being followed.</param>
        /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
        /// <param name="browseDirection">Which way the references are being followed.</param>
        /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
        /// <param name="additionalReferences">Any additional references that should be included.</param>
        /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
        /// <returns>The browse object (must be disposed).</returns>
        public override INodeBrowser CreateBrowser(
            ISystemContext context,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable <IReference> additionalReferences,
            bool internalOnly)
        {
            NodeBrowser browser = new SegmentBrowser(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly,
                this);

            PopulateBrowser(context, browser);

            return(browser);
        }
Esempio n. 10
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 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 /// <param name="context">The system context to use.</param>
 /// <param name="view">The view which may restrict the set of references/nodes found.</param>
 /// <param name="referenceType">The type of references being followed.</param>
 /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
 /// <param name="browseDirection">Which way the references are being followed.</param>
 /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
 /// <param name="additionalReferences">Any additional references that should be included.</param>
 /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
 /// <param name="itemId">The item id.</param>
 /// <param name="namespaceIndex">Index of the namespace.</param>
 public DaElementBrowser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable<IReference> additionalReferences,
     bool internalOnly,
     string itemId,
     ushort namespaceIndex)
 :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_itemId = itemId;
     m_namespaceIndex = namespaceIndex;
     m_stage = Stage.Begin;
 }
Esempio n. 11
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 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 public Browser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable <IReference> additionalReferences,
     bool internalOnly,
     Opc.Ua.Client.Session client,
     NamespaceMapper mapper,
     NodeState source,
     NodeId rootId)
     :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_client = client;
     m_mapper = mapper;
     m_source = source;
     m_rootId = rootId;
     m_stage  = Stage.Begin;
 }
Esempio n. 12
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        /// <summary>
        /// Displays the a root in the control.
        /// </summary>
        public void Initialize(
            Session session,
            NodeId rootId,
            NodeId viewId,
            NodeId referenceTypeId,
            BrowseDirection browseDirection)
        {
            m_session         = session;
            m_rootId          = rootId;
            m_viewId          = viewId;
            m_referenceTypeId = referenceTypeId;
            m_browseDirection = browseDirection;

            NodesTV.Nodes.Clear();

            if (m_session == null)
            {
                return;
            }

            if (NodeId.IsNull(m_rootId))
            {
                m_rootId = Objects.RootFolder;
            }

            if (NodeId.IsNull(m_referenceTypeId))
            {
                m_referenceTypeId = ReferenceTypeIds.HierarchicalReferences;
            }

            ReferenceTypeCTRL.Initialize(m_session, ReferenceTypeIds.HierarchicalReferences);
            ReferenceTypeCTRL.SelectedTypeId = m_referenceTypeId;

            ILocalNode root = m_session.NodeCache.Find(m_rootId) as ILocalNode;

            if (root == null)
            {
                return;
            }

            ReferenceDescription reference = new ReferenceDescription();

            reference.ReferenceTypeId = referenceTypeId;
            reference.IsForward       = true;
            reference.NodeId          = root.NodeId;
            reference.NodeClass       = root.NodeClass;
            reference.BrowseName      = root.BrowseName;
            reference.DisplayName     = root.DisplayName;
            reference.TypeDefinition  = root.TypeDefinitionId;

            TreeNode rootNode = new TreeNode(reference.ToString());

            rootNode.ImageKey = rootNode.SelectedImageKey = GuiUtils.GetTargetIcon(session, reference);
            rootNode.Tag      = reference;
            rootNode.Nodes.Add(new TreeNode());

            NodesTV.Nodes.Add(rootNode);
        }
Esempio n. 13
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        /// <summary>
        /// Browse the tree nodes
        /// </summary>
        /// <param name="id"></param>
        /// <param name="parentId"></param>
        /// <param name="direction"></param>
        private async Task BrowseTreeAsync(BrowseDirection direction, int index, bool isLoadingMore, string id = null, List <string> parentId = null)
        {
            IsLoading = true;

            if (!isLoadingMore)
            {
                ParentId = parentId;
                Items    = await BrowseManager.GetTreeAsync(EndpointId,
                                                            id,
                                                            parentId,
                                                            DiscovererId,
                                                            direction,
                                                            index,
                                                            Credential);
            }
            else
            {
                Items = await BrowseManager.GetTreeNextAsync(EndpointId,
                                                             ParentId,
                                                             DiscovererId,
                                                             Credential,
                                                             Items);
            }

            PublishedNodes = await Publisher.PublishedAsync(EndpointId, false);

            foreach (var node in Items.Results)
            {
                if (node.NodeClass == NodeClass.Variable)
                {
                    node.Value = await BrowseManager.ReadValueAsync(EndpointId, node.Id, Credential);

                    // check if publishing enabled
                    foreach (var publishedNode in PublishedNodes.Results)
                    {
                        if (node.Id == publishedNode.PublishedItem.NodeId)
                        {
                            node.PublishedItem = publishedNode.PublishedItem;
                            node.Publishing    = true;
                            break;
                        }
                    }
                }
            }

            if (string.IsNullOrEmpty(DiscovererId))
            {
                NavigationManager.NavigateTo(NavigationManager.BaseUri + "browser/" + "/" + ApplicationId + "/" + EndpointId);
            }
            else
            {
                NavigationManager.NavigateTo(NavigationManager.BaseUri + "browser/" + "/" + DiscovererId + "/" + ApplicationId + "/" + SupervisorId + "/" + EndpointId);
            }
            IsLoading = false;
        }
        /// <summary>
        /// Browse the tree nodes
        /// </summary>
        /// <param name="id"></param>
        /// <param name="parentId"></param>
        /// <param name="direction"></param>
        private async Task BrowseTreeAsync(BrowseDirection direction, int index, bool firstPage, int page, string id = null, List <string> parentId = null)
        {
            CommonHelper.Spinner = "loader-big";

            if (firstPage)
            {
                ParentId = parentId;
                NodeList = await BrowseManager.GetTreeAsync(EndpointId,
                                                            id,
                                                            parentId,
                                                            DiscovererId,
                                                            direction,
                                                            index,
                                                            Credential);
            }
            else
            {
                NodeList = await BrowseManager.GetTreeNextAsync(EndpointId,
                                                                ParentId,
                                                                DiscovererId,
                                                                Credential,
                                                                NodeList);
            }

            PublishedNodes = await Publisher.PublishedAsync(EndpointId, false);

            foreach (var node in NodeList.Results)
            {
                if (node.NodeClass == NodeClass.Variable)
                {
                    // check if publishing enabled
                    foreach (var publishedNode in PublishedNodes.Results)
                    {
                        if (node.Id == publishedNode.PublishedItem.NodeId)
                        {
                            node.PublishedItem = publishedNode.PublishedItem;
                            node.Publishing    = true;
                            break;
                        }
                    }
                }
            }

            PagedNodeList = NodeList.GetPaged(page, CommonHelper.PageLength, NodeList.Error);
            if (string.IsNullOrEmpty(DiscovererId))
            {
                NavigationManager.NavigateTo(NavigationManager.BaseUri + "browser/" + page + "/" + ApplicationId + "/" + EndpointId);
            }
            else
            {
                NavigationManager.NavigateTo(NavigationManager.BaseUri + "browser/" + page + "/" + DiscovererId + "/" + ApplicationId + "/" + SupervisorId + "/" + EndpointId);
            }
            CommonHelper.Spinner = "";
        }
Esempio n. 15
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        internal static string ToSerializedValue(this BrowseDirection value)
        {
            switch (value)
            {
            case BrowseDirection.Forward:
                return("Forward");

            case BrowseDirection.Backward:
                return("Backward");

            case BrowseDirection.Both:
                return("Both");
            }
            return(null);
        }
Esempio n. 16
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 public BrowseDescription(
     NodeId Id,
     BrowseDirection Direction,
     NodeId ReferenceType,
     bool IncludeSubtypes,
     uint NodeClassMask,
     BrowseResultMask ResultMask)
 {
     this.Id              = Id;
     this.Direction       = Direction;
     this.ReferenceType   = ReferenceType;
     this.IncludeSubtypes = IncludeSubtypes;
     this.NodeClassMask   = NodeClassMask;
     this.ResultMask      = ResultMask;
 }
Esempio n. 17
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        /// <summary>
        /// Convert browse direction
        /// </summary>
        /// <param name="mode"></param>
        /// <returns></returns>
        public static UaBrowseDirection ToStackType(this BrowseDirection mode)
        {
            switch (mode)
            {
            case BrowseDirection.Forward:
                return(UaBrowseDirection.Forward);

            case BrowseDirection.Backward:
                return(UaBrowseDirection.Inverse);

            case BrowseDirection.Both:
                return(UaBrowseDirection.Both);

            default:
                return(UaBrowseDirection.Forward);
            }
        }
Esempio n. 18
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        private void BrowseDirectionCTRL_SelectedIndexChanged(object sender, EventArgs e)
        {
            try {
                m_browseDirection = (BrowseDirection)BrowseDirectionCTRL.SelectedItem;

                if (NodesTV.SelectedNode != null)
                {
                    NodesTV.SelectedNode.Collapse();
                    NodesTV.SelectedNode.Nodes.Clear();
                    NodesTV.SelectedNode.Nodes.Add(new TreeNode());
                    NodesTV.SelectedNode.Expand();
                    return;
                }
            } catch (Exception exception) {
                GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
            }
        }
Esempio n. 19
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 /// <summary>
 /// Async browse service
 /// </summary>
 /// <param name="client"></param>
 /// <param name="requestHeader"></param>
 /// <param name="view"></param>
 /// <param name="nodeToBrowse"></param>
 /// <param name="maxResultsToReturn"></param>
 /// <param name="browseDirection"></param>
 /// <param name="referenceTypeId"></param>
 /// <param name="includeSubtypes"></param>
 /// <param name="nodeClassMask"></param>
 /// <param name="resultMask"></param>
 /// <param name="ct"></param>
 /// <returns></returns>
 public static Task <BrowseResponse> BrowseAsync(this SessionClient client,
                                                 RequestHeader requestHeader, ViewDescription view, NodeId nodeToBrowse,
                                                 uint maxResultsToReturn, BrowseDirection browseDirection,
                                                 NodeId referenceTypeId, bool includeSubtypes, uint nodeClassMask,
                                                 BrowseResultMask resultMask = BrowseResultMask.All, CancellationToken ct = default)
 {
     return(client.BrowseAsync(requestHeader, view, maxResultsToReturn,
                               new BrowseDescriptionCollection {
         new BrowseDescription {
             BrowseDirection = browseDirection,
             IncludeSubtypes = includeSubtypes,
             NodeClassMask = nodeClassMask,
             NodeId = nodeToBrowse,
             ReferenceTypeId = referenceTypeId,
             ResultMask = (uint)resultMask
         }
     }, ct));
 }
 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 public MemoryRegisterBrowser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable <IReference> additionalReferences,
     bool internalOnly,
     MemoryRegisterState parent)
     :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     _parent = parent;
     _stage  = Stage.Begin;
 }
Esempio n. 21
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 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 public MemoryBufferBrowser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable<IReference> additionalReferences,
     bool internalOnly,
     MemoryBufferState buffer)
 :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_buffer = buffer;
     m_stage = Stage.Begin;
 }
Esempio n. 22
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 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 /// <param name="context">The system context to use.</param>
 /// <param name="view">The view which may restrict the set of references/nodes found.</param>
 /// <param name="referenceType">The type of references being followed.</param>
 /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
 /// <param name="browseDirection">Which way the references are being followed.</param>
 /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
 /// <param name="additionalReferences">Any additional references that should be included.</param>
 /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
 /// <param name="source">The segment being accessed.</param>
 public ArchiveFolderBrowser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable<IReference> additionalReferences,
     bool internalOnly,
     ArchiveFolderState source)
 :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_source = source;
     m_stage = Stage.Begin;
 }
Esempio n. 23
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 /// <summary>
 /// Creates a new browser object with a set of filters.
 /// </summary>
 /// <param name="context">The system context to use.</param>
 /// <param name="view">The view which may restrict the set of references/nodes found.</param>
 /// <param name="referenceType">The type of references being followed.</param>
 /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
 /// <param name="browseDirection">Which way the references are being followed.</param>
 /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
 /// <param name="additionalReferences">Any additional references that should be included.</param>
 /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
 /// <param name="source">The segment being accessed.</param>
 public SegmentBrowser(
     ISystemContext context,
     ViewDescription view,
     NodeId referenceType,
     bool includeSubtypes,
     BrowseDirection browseDirection,
     QualifiedName browseName,
     IEnumerable <IReference> additionalReferences,
     bool internalOnly,
     SegmentState source)
     :
     base(
         context,
         view,
         referenceType,
         includeSubtypes,
         browseDirection,
         browseName,
         additionalReferences,
         internalOnly)
 {
     m_source = source;
     m_stage  = Stage.Begin;
 }
Esempio n. 24
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        public static Entry For(BrowseDirection direction)
        {
            string text = null;

            switch (direction)
            {
            case BrowseDirection.Forward:
                text = "Forward";
                break;

            case BrowseDirection.Inverse:
                text = "Inverse";
                break;

            case BrowseDirection.Both:
                text = "Both";
                break;

            case BrowseDirection.Invalid:
                text = "Invalid";
                break;
            }
            return(new StringEntry(text));
        }
Esempio n. 25
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        /// <summary>
        /// Get tree
        /// </summary>
        /// <param name="endpointId"></param>
        /// <param name="id"></param>
        /// <param name="parentId"></param>
        /// <param name="discovererId"></param>
        /// <param name="direction"></param>
        /// <returns>ListNode</returns>
        public async Task <PagedResult <ListNode> > GetTreeAsync(string endpointId,
                                                                 string id, List <string> parentId, string discovererId, BrowseDirection direction)
        {
            var pageResult = new PagedResult <ListNode>();
            var model      = new BrowseRequestApiModel {
                TargetNodesOnly = true
            };

            if (direction == BrowseDirection.Forward)
            {
                model.MaxReferencesToReturn = _MAX_REFERENCES;
                model.NodeId = id;
                if (id == string.Empty)
                {
                    Path = string.Empty;
                }
            }
            else
            {
                model.NodeId = parentId.ElementAt(parentId.Count - 2);
            }

            try {
                var browseData = await _twinService.NodeBrowseAsync(endpointId, model);

                var continuationToken = browseData.ContinuationToken;
                var references        = browseData.References;
                var browseDataNext    = new BrowseNextResponseApiModel();

                if (direction == BrowseDirection.Forward)
                {
                    parentId.Add(browseData.Node.NodeId);
                    Path += "/" + browseData.Node.DisplayName;
                }
                else
                {
                    parentId.RemoveAt(parentId.Count - 1);
                    Path = Path.Substring(0, Path.LastIndexOf("/"));
                }

                do
                {
                    if (references != null)
                    {
                        foreach (var nodeReference in references)
                        {
                            pageResult.Results.Add(new ListNode {
                                Id            = nodeReference.Target.NodeId.ToString(),
                                NodeClass     = nodeReference.Target.NodeClass ?? 0,
                                NodeName      = nodeReference.Target.DisplayName.ToString(),
                                Children      = (bool)nodeReference.Target.Children,
                                ParentIdList  = parentId,
                                DiscovererId  = discovererId,
                                AccessLevel   = nodeReference.Target.AccessLevel ?? 0,
                                ParentName    = browseData.Node.DisplayName,
                                DataType      = nodeReference.Target.DataType,
                                Value         = string.Empty,
                                Publishing    = false,
                                PublishedItem = null
                            });
                        }
                    }

                    if (!string.IsNullOrEmpty(continuationToken))
                    {
                        var modelNext = new BrowseNextRequestApiModel {
                            ContinuationToken = continuationToken
                        };
                        browseDataNext = await _twinService.NodeBrowseNextAsync(endpointId, modelNext);

                        references        = browseDataNext.References;
                        continuationToken = browseDataNext.ContinuationToken;
                    }
                    else
                    {
                        browseDataNext.References = null;
                    }
                } while (!string.IsNullOrEmpty(continuationToken) || browseDataNext.References != null);
            }
            catch (Exception e) {
                // skip this node
                Trace.TraceError("Can not browse node '{0}'", id);
                var errorMessage = string.Concat(e.Message, e.InnerException?.Message ?? "--", e?.StackTrace ?? "--");
                Trace.TraceError(errorMessage);
                pageResult.Results.Add(new ListNode {
                    NodeName     = e.Message,
                    DiscovererId = discovererId,
                    ParentName   = "Root"
                });
            }

            pageResult.PageSize  = 10;
            pageResult.RowCount  = pageResult.Results.Count;
            pageResult.PageCount = (int)Math.Ceiling((decimal)pageResult.RowCount / 10);
            return(pageResult);
        }
Esempio n. 26
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        /// <summary>
        /// Get tree
        /// </summary>
        /// <param name="endpointId"></param>
        /// <param name="id"></param>
        /// <param name="parentId"></param>
        /// <param name="discovererId"></param>
        /// <param name="direction"></param>
        /// <returns>ListNode</returns>
        public async Task <PagedResult <ListNode> > GetTreeAsync(string endpointId, string id,
                                                                 List <string> parentId, string discovererId, BrowseDirection direction, int index,
                                                                 CredentialModel credential = null)
        {
            var pageResult = new PagedResult <ListNode>();
            var model      = new BrowseRequestApiModel {
                TargetNodesOnly    = true,
                ReadVariableValues = true
            };

            if (direction == BrowseDirection.Forward)
            {
                model.MaxReferencesToReturn = _MAX_REFERENCES;
                model.NodeId = id;
                if (id == string.Empty)
                {
                    Path = new List <string>();
                }
            }
            else
            {
                model.NodeId = parentId.ElementAt(index - 1);
            }

            model.Header = Elevate(new RequestHeaderApiModel(), credential);

            try {
                var browseData = await _twinService.NodeBrowseAsync(endpointId, model);

                var continuationToken = browseData.ContinuationToken;
                var references        = browseData.References;
                var browseDataNext    = new BrowseNextResponseApiModel();

                if (direction == BrowseDirection.Forward)
                {
                    parentId.Add(browseData.Node.NodeId);
                    Path.Add(browseData.Node.DisplayName);
                }
                else
                {
                    parentId.RemoveAt(parentId.Count - 1);
                    Path.RemoveRange(index, Path.Count - index);
                }

                do
                {
                    if (references != null)
                    {
                        foreach (var nodeReference in references)
                        {
                            pageResult.Results.Add(new ListNode {
                                Id            = nodeReference.Target.NodeId.ToString(),
                                NodeClass     = nodeReference.Target.NodeClass ?? 0,
                                NodeName      = nodeReference.Target.DisplayName.ToString(),
                                Children      = (bool)nodeReference.Target.Children,
                                ParentIdList  = parentId,
                                DiscovererId  = discovererId,
                                AccessLevel   = nodeReference.Target.AccessLevel ?? 0,
                                ParentName    = browseData.Node.DisplayName,
                                DataType      = nodeReference.Target.DataType,
                                Value         = nodeReference.Target.Value?.ToString(),
                                Publishing    = false,
                                PublishedItem = null
                            });
                        }
                    }

                    if (!string.IsNullOrEmpty(continuationToken))
                    {
                        bool?abort = null;
                        if (pageResult.Results.Count > 5)
                        {
                            // TODO: !!! Implement real paging - need to make ux responsive for large # tags !!!
                            abort = true;
                        }
                        var modelNext = new BrowseNextRequestApiModel {
                            ContinuationToken = continuationToken,
                            Abort             = abort
                        };
                        browseDataNext = await _twinService.NodeBrowseNextAsync(endpointId, modelNext);

                        if (abort == true)
                        {
                            break;
                        }
                        references        = browseDataNext.References;
                        continuationToken = browseDataNext.ContinuationToken;
                    }
                    else
                    {
                        browseDataNext.References = null;
                    }
                } while (!string.IsNullOrEmpty(continuationToken) || browseDataNext.References != null);
            }
            catch (Exception e) {
                // skip this node
                _logger.Error($"Can not browse node '{id}'");
                var errorMessage = string.Concat(e.Message, e.InnerException?.Message ?? "--", e?.StackTrace ?? "--");
                _logger.Error(errorMessage);
                string error = JToken.Parse(e.Message).ToString(Formatting.Indented);
                if (error.Contains(StatusCodes.Status401Unauthorized.ToString()))
                {
                    pageResult.Error = "Unauthorized access: Bad User Access Denied.";
                }
                else
                {
                    pageResult.Error = error;
                }
            }

            pageResult.PageSize  = 10;
            pageResult.RowCount  = pageResult.Results.Count;
            pageResult.PageCount = (int)Math.Ceiling((decimal)pageResult.RowCount / 10);
            return(pageResult);
        }
 /// <summary>
 /// Change current browse position.
 /// </summary>
 /// <param name="direction">The direction to browse OPC Server namespace. See <see cref="BrowseDirection"/>.</param>
 /// <param name="filter">Mask of item/folder name.</param>
 public void ChangeBrowsePosition(BrowseDirection direction, string filter)
 {
     _browseServerSpace.ChangeBrowsePosition(direction, filter);
 }
Esempio n. 28
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        /// <summary>
        /// Called to create the browser for the item configuration.
        /// </summary>
        private NodeBrowser OnCreateItemConfigurationBrowser(
            ISystemContext context,
            NodeState node,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable<IReference> additionalReferences,
            bool internalOnly)
        {
            HdaParsedNodeId nodeId = HdaParsedNodeId.Parse(node.NodeId);

            if (nodeId == null)
            {
                return null;
            }

            return new HdaElementBrower(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly,
                nodeId.RootId,
                Opc.Ua.ObjectTypeIds.HistoricalDataConfigurationType,
                Opc.Ua.BrowseNames.HAConfiguration,
                NamespaceIndex);
        }
        /// <summary>
        /// Returns true is the target meets the filter criteria.
        /// </summary>
        private bool ApplyBrowseFilters(
            IReference      reference,
            BrowseDirection browseDirection,
            NodeId          referenceTypeId,
            bool            includeSubtypes)
        {
            // check browse direction.
            if (reference.IsInverse)
            {
                if (browseDirection == BrowseDirection.Forward)
                {
                    return false;
                }
            }
            else
            {
                if (browseDirection == BrowseDirection.Inverse)
                {
                    return false;
                }
            }

            // check reference type filter.
            if (!NodeId.IsNull(referenceTypeId))
            {
                if (reference.ReferenceTypeId != referenceTypeId)
                {
                    if (includeSubtypes)
                    {
                        if (m_server.TypeTree.IsTypeOf(reference.ReferenceTypeId, referenceTypeId))
                        {
                            return true;
                        }
                    }
                        
                    return false;
                }
            }
                   
            // include reference for now.
            return true;
        }
Esempio n. 30
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        /// <summary>
        /// Get tree
        /// </summary>
        /// <param name="endpointId"></param>
        /// <param name="id"></param>
        /// <param name="parentId"></param>
        /// <param name="discovererId"></param>
        /// <param name="direction"></param>
        /// <param name="index"></param>
        /// <param name="credential"></param>
        /// <returns>ListNode</returns>
        public async Task <PagedResult <ListNode> > GetTreeAsync(string endpointId, string id,
                                                                 List <string> parentId, string discovererId, BrowseDirection direction, int index,
                                                                 CredentialModel credential = null)
        {
            var pageResult   = new PagedResult <ListNode>();
            var header       = Elevate(new RequestHeaderApiModel(), credential);
            var previousPage = new PagedResult <ListNode>();
            var model        = new BrowseRequestApiModel {
                TargetNodesOnly       = true,
                ReadVariableValues    = true,
                MaxReferencesToReturn = _MAX_REFERENCES
            };

            if (direction == BrowseDirection.Forward)
            {
                model.NodeId = id;
                if (id == string.Empty)
                {
                    Path = new List <string>();
                }
            }
            else
            {
                model.NodeId = parentId.ElementAt(index - 1);
            }
            model.Header = header;

            try {
                var browseData = await _twinService.NodeBrowseAsync(endpointId, model);

                _displayName = browseData.Node.DisplayName;

                if (direction == BrowseDirection.Forward)
                {
                    parentId.Add(browseData.Node.NodeId);
                    Path.Add(browseData.Node.DisplayName);
                }
                else
                {
                    parentId.RemoveAt(parentId.Count - 1);
                    Path.RemoveRange(index, Path.Count - index);
                }

                if (!string.IsNullOrEmpty(browseData.ContinuationToken))
                {
                    pageResult.PageCount = 2;
                }

                if (browseData.References != null)
                {
                    foreach (var nodeReference in browseData.References)
                    {
                        previousPage.Results.Add(new ListNode {
                            Id            = nodeReference.Target.NodeId.ToString(),
                            NodeClass     = nodeReference.Target.NodeClass ?? 0,
                            NodeName      = nodeReference.Target.DisplayName.ToString(),
                            Children      = (bool)nodeReference.Target.Children,
                            ParentIdList  = parentId,
                            DiscovererId  = discovererId,
                            AccessLevel   = nodeReference.Target.AccessLevel ?? 0,
                            ParentName    = _displayName,
                            DataType      = nodeReference.Target.DataType,
                            Value         = nodeReference.Target.Value?.ToJson()?.TrimQuotes(),
                            Publishing    = false,
                            PublishedItem = null
                        });
                    }
                }
                pageResult.Results           = previousPage.Results;
                pageResult.ContinuationToken = browseData.ContinuationToken;
                pageResult.PageSize          = _commonHelper.PageLength;
                pageResult.RowCount          = pageResult.Results.Count;
            }
            catch (UnauthorizedAccessException) {
                pageResult.Error = "Unauthorized access: Bad User Access Denied.";
            }
            catch (Exception e) {
                // skip this node
                _logger.Error(e, "Can not browse node '{id}'", id);
                var errorMessage = string.Concat(e.Message, e.InnerException?.Message ?? "--", e?.StackTrace ?? "--");
                pageResult.Error = errorMessage;
            }
            return(pageResult);
        }
        /// <summary>
        /// Change current browse position.
        /// </summary>
        /// <param name="direction">The direction to browse OPC Server namespace. See <see cref="BrowseDirection"/>.</param>
        /// <param name="filter">Mask of item/folder name.</param>
		public void ChangeBrowsePosition(BrowseDirection direction, string filter)
		{
			browseServerSpace.ChangeBrowsePosition(direction, filter);				
		}
Esempio n. 32
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        /// <summary>
        /// Creates a browser that finds the references to the branch.
        /// </summary>
        /// <param name="context">The system context to use.</param>
        /// <param name="view">The view which may restrict the set of references/nodes found.</param>
        /// <param name="referenceType">The type of references being followed.</param>
        /// <param name="includeSubtypes">Whether subtypes of the reference type are followed.</param>
        /// <param name="browseDirection">Which way the references are being followed.</param>
        /// <param name="browseName">The browse name of a specific target (used when translating browse paths).</param>
        /// <param name="additionalReferences">Any additional references that should be included.</param>
        /// <param name="internalOnly">If true the browser should not making blocking calls to external systems.</param>
        /// <returns>The browse object (must be disposed).</returns>
        public override INodeBrowser CreateBrowser(
            ISystemContext context, 
            ViewDescription view, 
            NodeId referenceType, 
            bool includeSubtypes, 
            BrowseDirection browseDirection, 
            QualifiedName browseName,
            IEnumerable<IReference> additionalReferences,
            bool internalOnly)
        {
            NodeBrowser browser = new DaElementBrowser(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly,
                this.ItemId,
                this.NodeId.NamespaceIndex);

            PopulateBrowser(context, browser);

            return browser;
        }
        /// <summary>
        /// Adds the targets of references to the control.
        /// </summary>
        private void AddReferences(NodeId referenceTypeId, BrowseDirection browseDirection)
        {
            // fetch the attributes for the reference type.
            INode referenceType = m_session.NodeCache.Find(referenceTypeId);

            if (referenceType == null)
            {
                return;
            }
            
            // browse for the references.
            Browser browser = new Browser(m_session);
            
            browser.BrowseDirection   = browseDirection;
            browser.ReferenceTypeId   = referenceTypeId;
            browser.IncludeSubtypes   = true;
            browser.NodeClassMask     = 0;
            browser.ContinueUntilDone = true;

            ReferenceDescriptionCollection references = browser.Browse(m_nodeId);

            // add results to list.
            foreach (ReferenceDescription reference in references)
            {
                NodeField field = new NodeField();

                field.Name       = referenceType.ToString();     
                field.Value      = reference.ToString();
                field.StatusCode = StatusCodes.Good;

                AddItem(field, "ReferenceType", -1);
            }
        }
Esempio n. 34
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        /// <summary>
        /// Used to receive notifications when a node browser is created.
        /// </summary>
        public NodeBrowser OnCreateBrowser(
            ISystemContext context,
            NodeState node,
            ViewDescription view,
            NodeId referenceType,
            bool includeSubtypes,
            BrowseDirection browseDirection,
            QualifiedName browseName,
            IEnumerable<IReference> additionalReferences,
            bool internalOnly)
        {
            Browser browser = new Browser(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                null,
                false,
                GetClientSession(context as ServerSystemContext),
                m_mapper,
                Object.ReferenceEquals(node, m_root)?null:node,
                m_root.NodeId);

            return browser;
        }
Esempio n. 35
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        /// <summary>
        /// Invokes the Browse service.
        /// </summary>
        /// <param name="requestHeader">The request header.</param>
        /// <param name="view">The view to browse.</param>
        /// <param name="nodeToBrowse">The node to browse.</param>
        /// <param name="maxResultsToReturn">The maximum number of returned values.</param>
        /// <param name="browseDirection">The browse direction.</param>
        /// <param name="referenceTypeId">The reference type id.</param>
        /// <param name="includeSubtypes">If set to <c>true</c> the subtypes of the ReferenceType will be included in the browse.</param>
        /// <param name="nodeClassMask">The node class mask.</param>
        /// <param name="continuationPoint">The continuation point.</param>
        /// <param name="references">The list of node references.</param>
        /// <returns></returns>
        public virtual ResponseHeader Browse(
            RequestHeader requestHeader,
            ViewDescription view,
            NodeId nodeToBrowse,
            uint maxResultsToReturn,
            BrowseDirection browseDirection,
            NodeId referenceTypeId,
            bool includeSubtypes,
            uint nodeClassMask,
            out byte[] continuationPoint,
            out ReferenceDescriptionCollection references)
        {
            BrowseDescription description = new BrowseDescription();

            description.NodeId = nodeToBrowse;
            description.BrowseDirection = browseDirection;
            description.ReferenceTypeId = referenceTypeId;
            description.IncludeSubtypes = includeSubtypes;
            description.NodeClassMask = nodeClassMask;
            description.ResultMask = (uint)BrowseResultMask.All;

            BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
            nodesToBrowse.Add(description);

            BrowseResultCollection results;
            DiagnosticInfoCollection diagnosticInfos;

            ResponseHeader responseHeader = Browse(
                requestHeader,
                view,
                maxResultsToReturn,
                nodesToBrowse,
                out results,
                out diagnosticInfos);

            ClientBase.ValidateResponse(results, nodesToBrowse);
            ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToBrowse);

            if (StatusCode.IsBad(results[0].StatusCode))
            {
                throw new ServiceResultException(new ServiceResult(results[0].StatusCode, 0, diagnosticInfos, responseHeader.StringTable));
            }

            continuationPoint = results[0].ContinuationPoint;
            references = results[0].References;

            return responseHeader;
        }
Esempio n. 36
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        private void BrowseDirectionCTRL_SelectedIndexChanged(object sender, EventArgs e)
        {
            try
            {
                m_browseDirection = (BrowseDirection)BrowseDirectionCTRL.SelectedItem;

                if (NodesTV.SelectedNode != null)
                {
                    NodesTV.SelectedNode.Collapse();
                    NodesTV.SelectedNode.Nodes.Clear();
                    NodesTV.SelectedNode.Nodes.Add(new TreeNode());
                    NodesTV.SelectedNode.Expand();
                    return;
                }
			}
            catch (Exception exception)
            {
				GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
            }
        }
Esempio n. 37
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        /// <summary>
        /// Displays the a root in the control.
        /// </summary>
        public void Initialize(
            Session session, 
            NodeId rootId, 
            NodeId viewId,
            NodeId referenceTypeId, 
            BrowseDirection browseDirection)
        {
            m_session = session;
            m_rootId = rootId;
            m_viewId = viewId;
            m_referenceTypeId = referenceTypeId;
            m_browseDirection = browseDirection;

            NodesTV.Nodes.Clear();

            if (m_session == null)
            {
                return;
            }

            if (NodeId.IsNull(m_rootId))
            {
                m_rootId = Objects.RootFolder;
            }

            if (NodeId.IsNull(m_referenceTypeId))
            {
                m_referenceTypeId = ReferenceTypeIds.HierarchicalReferences;
            }

            ReferenceTypeCTRL.Initialize(m_session, ReferenceTypeIds.HierarchicalReferences);
            ReferenceTypeCTRL.SelectedTypeId = m_referenceTypeId;

            ILocalNode root = m_session.NodeCache.Find(m_rootId) as ILocalNode;

            if (root == null)
            {
                return;
            }
            
            ReferenceDescription reference = new ReferenceDescription();

            reference.ReferenceTypeId = referenceTypeId;
            reference.IsForward = true;
            reference.NodeId = root.NodeId;
            reference.NodeClass = root.NodeClass;
            reference.BrowseName = root.BrowseName;
            reference.DisplayName = root.DisplayName;
            reference.TypeDefinition = root.TypeDefinitionId;

            TreeNode rootNode = new TreeNode(reference.ToString());

            rootNode.ImageKey = rootNode.SelectedImageKey = GuiUtils.GetTargetIcon(session, reference);
            rootNode.Tag = reference;
            rootNode.Nodes.Add(new TreeNode());
            
            NodesTV.Nodes.Add(rootNode);
        }
Esempio n. 38
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        /// <summary>
        /// Begins an asynchronous invocation of the Browse service.
        /// </summary>
        /// <param name="requestHeader">The request header.</param>
        /// <param name="view">The view to browse.</param>
        /// <param name="nodeToBrowse">The node to browse.</param>
        /// <param name="maxResultsToReturn">The maximum number of returned values..</param>
        /// <param name="browseDirection">The browse direction.</param>
        /// <param name="referenceTypeId">The reference type id.</param>
        /// <param name="includeSubtypes">If set to <c>true</c> the subtypes of the ReferenceType will be included in the browse.</param>
        /// <param name="nodeClassMask">The node class mask.</param>
        /// <param name="callback">The callback.</param>
        /// <param name="asyncState"></param>
        /// <returns></returns>
        public IAsyncResult BeginBrowse(
            RequestHeader requestHeader,
            ViewDescription view,
            NodeId nodeToBrowse,
            uint maxResultsToReturn,
            BrowseDirection browseDirection,
            NodeId referenceTypeId,
            bool includeSubtypes,
            uint nodeClassMask,
            AsyncCallback callback,
            object asyncState)
        {
            BrowseDescription description = new BrowseDescription();

            description.NodeId = nodeToBrowse;
            description.BrowseDirection = browseDirection;
            description.ReferenceTypeId = referenceTypeId;
            description.IncludeSubtypes = includeSubtypes;
            description.NodeClassMask = nodeClassMask;
            description.ResultMask = (uint)BrowseResultMask.All;

            BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
            nodesToBrowse.Add(description);

            return BeginBrowse(
                requestHeader,
                view,
                maxResultsToReturn,
                nodesToBrowse,
                callback,
                asyncState);
        }
Esempio n. 39
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        public override INodeBrowser CreateBrowser(
            ISystemContext context, 
            ViewDescription view, 
            NodeId referenceType, 
            bool includeSubtypes, 
            BrowseDirection browseDirection, 
            QualifiedName browseName, 
            IEnumerable<IReference> additionalReferences, 
            bool internalOnly)
        {
            MemoryRegisterBrowser browser = new MemoryRegisterBrowser(
                context,
                view,
                referenceType,
                includeSubtypes,
                browseDirection,
                browseName,
                additionalReferences,
                internalOnly,
                this);

            return browser;
        }