mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-20 08:41:51 +08:00
mtx500
d2e436d340
Fixed a lot of typos in comments, strings and local variable names. No change to misspelled function names and file names.
1251 lines
57 KiB
C#
1251 lines
57 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2022 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Xml;
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using static Opc.Ua.Utils;
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namespace Opc.Ua.Client.ComplexTypes
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{
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/// <summary>
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/// Manages the custom types of a server for a client session.
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/// Loads the custom types into the type factory
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/// of a client session, to allow for decoding and encoding
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/// of custom enumeration types and structured types.
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/// </summary>
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/// <remarks>
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/// Support for V1.03 dictionaries and all V1.04 data type definitions
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/// with the following known restrictions:
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/// - Support only for V1.03 structured types which can be mapped to the V1.04
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/// structured type definition. Unsupported V1.03 types are ignored.
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/// - V1.04 OptionSet does not create the enumeration flags.
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/// </remarks>
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public class ComplexTypeSystem
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{
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// an internal limit to prevent the retry
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// datatype loader mechanism to loop forever
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private const int MaxLoopCount = 100;
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#region Constructors
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/// <summary>
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/// Initializes the type system with a session to load the custom types.
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/// </summary>
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public ComplexTypeSystem(ISession session)
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{
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Initialize(new NodeCacheResolver(session), new ComplexTypeBuilderFactory());
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}
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/// <summary>
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/// Initializes the type system with a complex type resolver to load the custom types.
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/// </summary>
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public ComplexTypeSystem(IComplexTypeResolver complexTypeResolver)
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{
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Initialize(complexTypeResolver, new ComplexTypeBuilderFactory());
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}
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/// <summary>
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/// Initializes the type system with a session to load the custom types
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/// and a customized type builder factory
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/// </summary>
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public ComplexTypeSystem(
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ISession session,
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IComplexTypeFactory complexTypeBuilderFactory)
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{
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Initialize(new NodeCacheResolver(session), complexTypeBuilderFactory);
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}
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/// <summary>
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/// Initializes the type system with a complex type resolver to load the custom types.
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/// </summary>
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public ComplexTypeSystem(
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IComplexTypeResolver complexTypeResolver,
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IComplexTypeFactory complexTypeBuilderFactory)
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{
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Initialize(complexTypeResolver, complexTypeBuilderFactory);
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}
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private void Initialize(
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IComplexTypeResolver complexTypeResolver,
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IComplexTypeFactory complexTypeBuilderFactory)
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{
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m_complexTypeResolver = complexTypeResolver;
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m_complexTypeBuilderFactory = complexTypeBuilderFactory;
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}
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#endregion Constructors
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#region Public Members
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/// <summary>
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/// Load a single custom type with subtypes.
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/// </summary>
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/// <remarks>
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/// Uses inverse references on the server to find the super type(s).
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/// If the new structure contains a type dependency to a yet
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/// unknown type, it loads also the dependent type(s).
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/// For servers without DataTypeDefinition support, all
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/// custom types are loaded.
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/// </remarks>
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public async Task<Type> LoadType(ExpandedNodeId nodeId, bool subTypes = false, bool throwOnError = false, CancellationToken ct = default)
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{
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try
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{
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// add fast path, if no subTypes are requested
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if (!subTypes)
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{
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Type systemType = GetSystemType(nodeId);
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if (systemType != null)
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{
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return systemType;
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}
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}
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// cache the server type system
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_ = await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.BaseDataType, true, ct: ct).ConfigureAwait(false);
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IList<INode> subTypeNodes = await m_complexTypeResolver.LoadDataTypesAsync(nodeId, subTypes, true, ct: ct).ConfigureAwait(false);
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IList<INode> subTypeNodesWithoutKnownTypes = RemoveKnownTypes(subTypeNodes);
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if (subTypeNodesWithoutKnownTypes.Count > 0)
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{
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IList<INode> serverEnumTypes = new List<INode>();
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IList<INode> serverStructTypes = new List<INode>();
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foreach (INode node in subTypeNodesWithoutKnownTypes)
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{
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await AddEnumerationOrStructureTypeAsync(node, serverEnumTypes, serverStructTypes, ct).ConfigureAwait(false);
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}
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// load server types
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if (DisableDataTypeDefinition || !await LoadBaseDataTypesAsync(serverEnumTypes, serverStructTypes, ct).ConfigureAwait(false))
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{
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if (!DisableDataTypeDictionary)
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{
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await LoadDictionaryDataTypes(serverEnumTypes, serverStructTypes, false, ct).ConfigureAwait(false);
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}
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}
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}
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return GetSystemType(nodeId);
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}
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catch (Exception ex)
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{
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Utils.LogError(ex, "Failed to load the custom type {0}.", nodeId);
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if (throwOnError)
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{
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throw;
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}
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return null;
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}
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}
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/// <summary>
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/// Load all custom types of a namespace.
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/// </summary>
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/// <remarks>
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/// If a new type in the namespace contains a type dependency to an
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/// unknown type in another namespace, it loads also the dependent type(s).
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/// For servers without DataTypeDefinition support all
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/// custom types are loaded.
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/// </remarks>
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public async Task<bool> LoadNamespace(string nameSpace, bool throwOnError = false, CancellationToken ct = default)
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{
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try
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{
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int index = m_complexTypeResolver.NamespaceUris.GetIndex(nameSpace);
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if (index < 0)
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{
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throw new ServiceResultException($"Bad argument {nameSpace}. Namespace not found.");
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}
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ushort nameSpaceIndex = (ushort)index;
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_ = await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.BaseDataType, true, ct: ct).ConfigureAwait(false);
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IList<INode> serverEnumTypes = await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.Enumeration, ct: ct).ConfigureAwait(false);
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IList<INode> serverStructTypes = await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.Structure, true, ct: ct).ConfigureAwait(false);
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// filter for namespace
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serverEnumTypes = serverEnumTypes.Where(rd => rd.NodeId.NamespaceIndex == nameSpaceIndex).ToList();
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serverStructTypes = serverStructTypes.Where(rd => rd.NodeId.NamespaceIndex == nameSpaceIndex).ToList();
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// load types
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if (DisableDataTypeDefinition || !await LoadBaseDataTypesAsync(serverEnumTypes, serverStructTypes, ct).ConfigureAwait(false))
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{
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if (DisableDataTypeDictionary)
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{
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return false;
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}
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return await LoadDictionaryDataTypes(serverEnumTypes, serverStructTypes, false, ct).ConfigureAwait(false);
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}
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return true;
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}
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catch (Exception ex)
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{
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Utils.LogError(ex, "Failed to load the custom type namespace {0}.", nameSpace);
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if (throwOnError)
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{
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throw;
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}
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return false;
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}
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}
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/// <summary>
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/// Load all custom types from a server into the session system type factory.
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/// </summary>
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/// <remarks>
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/// The loader follows the following strategy:
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/// - Load all DataType nodes of the Enumeration subtypes.
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/// - Load all DataType nodes of the Structure subtypes.
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/// - Create all enumerated custom types using the DataTypeDefinion attribute, if available.
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/// - Create all remaining enumerated custom types using the EnumValues or EnumStrings property, if available.
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/// - Create all structured types using the DataTypeDefinion attribute, if available.
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/// if there are type definitions remaining
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/// - Load the binary schema dictionaries with type definitions.
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/// - Create all remaining enumerated custom types using the dictionaries.
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/// - Convert all structured types in the dictionaries to the DataTypeDefinion attribute, if possible.
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/// - Create all structured types from the dictionaries using the converted DataTypeDefinion attribute..
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/// </remarks>
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/// <returns>true if all DataTypes were loaded.</returns>
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public async Task<bool> Load(bool onlyEnumTypes = false, bool throwOnError = false, CancellationToken ct = default)
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{
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try
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{
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// load server types in cache
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await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.BaseDataType, true, ct: ct).ConfigureAwait(false);
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IList<INode> serverEnumTypes = await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.Enumeration, ct: ct).ConfigureAwait(false);
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IList<INode> serverStructTypes = onlyEnumTypes ? new List<INode>() :
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await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.Structure, true, ct: ct).ConfigureAwait(false);
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if (DisableDataTypeDefinition || !await LoadBaseDataTypesAsync(serverEnumTypes, serverStructTypes, ct).ConfigureAwait(false))
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{
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if (DisableDataTypeDictionary)
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{
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return false;
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}
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return await LoadDictionaryDataTypes(serverEnumTypes, serverStructTypes, true, ct).ConfigureAwait(false);
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}
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return true;
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}
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catch (Exception ex)
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{
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Utils.LogError(ex, "Failed to load the custom types.");
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if (throwOnError)
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{
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throw;
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}
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return false;
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}
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}
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/// <summary>
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/// Get the types defined in this type system.
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/// </summary>
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public Type[] GetDefinedTypes()
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{
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return m_complexTypeBuilderFactory.GetTypes();
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}
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/// <summary>
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/// Returns data types node ids for everything that was defined.
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/// </summary>
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/// <returns></returns>
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public IEnumerable<ExpandedNodeId> GetDefinedDataTypeIds()
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{
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return m_dataTypeDefinitionCache.Keys.Select(nodeId => NodeId.ToExpandedNodeId(nodeId, m_complexTypeResolver.NamespaceUris));
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}
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/// <summary>
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/// Get the data type definition and dependent definitions for a data type node id.
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/// Recursive through the cache to find all dependent types for strutures fields
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/// contained in the cache.
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/// </summary>
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public NodeIdDictionary<DataTypeDefinition> GetDataTypeDefinitionsForDataType(ExpandedNodeId dataTypeId)
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{
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var dataTypeDefinitions = new NodeIdDictionary<DataTypeDefinition>();
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var dataTypeNodeId = ExpandedNodeId.ToNodeId(dataTypeId, m_complexTypeResolver.NamespaceUris);
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if (!NodeId.IsNull(dataTypeNodeId))
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{
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CollectAllDataTypeDefinitions(dataTypeNodeId, dataTypeDefinitions);
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}
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return dataTypeDefinitions;
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void CollectAllDataTypeDefinitions(NodeId nodeId, NodeIdDictionary<DataTypeDefinition> collect)
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{
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if (NodeId.IsNull(nodeId))
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{
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return;
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}
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if (m_dataTypeDefinitionCache.TryGetValue(nodeId, out DataTypeDefinition dataTypeDefinition))
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{
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collect[nodeId] = dataTypeDefinition;
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if (dataTypeDefinition is StructureDefinition structureDefinition)
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{
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foreach (StructureField field in structureDefinition.Fields)
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{
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if (!IsRecursiveDataType(nodeId, field.DataType) &&
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!collect.ContainsKey(nodeId))
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{
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CollectAllDataTypeDefinitions(field.DataType, collect);
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}
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}
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}
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}
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}
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}
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/// <summary>
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/// Clear references in datatype cache.
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/// </summary>
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public void ClearDataTypeCache()
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{
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m_dataTypeDefinitionCache.Clear();
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}
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#endregion Public Members
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#region Internal Properties
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/// <summary>
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/// Disable the use of DataTypeDefinition to create the complex type definition.
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/// </summary>
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internal bool DisableDataTypeDefinition { get; set; } = false;
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/// <summary>
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/// Disable the use of DataType Dictionaries to create the complex type definition.
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/// </summary>
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internal bool DisableDataTypeDictionary { get; set; } = false;
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#endregion Internal Properties
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#region Private Members
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/// <summary>
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/// Load listed custom types from dictionaries
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/// into the sessions system type factory.
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/// </summary>
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/// <remarks>
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/// Loads all custom types at this time to avoid
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/// complexity when resolving type dependencies.
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/// </remarks>
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private async Task<bool> LoadDictionaryDataTypes(
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IList<INode> serverEnumTypes,
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IList<INode> serverStructTypes,
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bool fullTypeList,
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CancellationToken ct = default
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)
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{
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// build a type dictionary with all known new types
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var allEnumTypes = fullTypeList ? serverEnumTypes : await m_complexTypeResolver.LoadDataTypesAsync(DataTypeIds.Enumeration, ct: ct).ConfigureAwait(false);
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var typeDictionary = new Dictionary<XmlQualifiedName, NodeId>();
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// strip known types from list
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serverEnumTypes = RemoveKnownTypes(allEnumTypes);
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// load the binary schema dictionaries from the server
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Dictionary<NodeId, DataDictionary> typeSystem = await m_complexTypeResolver.LoadDataTypeSystem(ct: ct).ConfigureAwait(false);
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// sort dictionaries with import dependencies to the end of the list
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var sortedTypeSystem = typeSystem.OrderBy(t => t.Value.TypeDictionary?.Import?.Length).ToList();
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bool allTypesLoaded = true;
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// create custom types for all dictionaries
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foreach (KeyValuePair<NodeId, DataDictionary> dictionaryId in sortedTypeSystem)
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{
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try
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{
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DataDictionary dictionary = dictionaryId.Value;
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if (dictionary.TypeDictionary == null ||
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dictionary.TypeDictionary.Items == null)
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{
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continue;
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}
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string targetDictionaryNamespace = dictionary.TypeDictionary.TargetNamespace;
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int targetNamespaceIndex = m_complexTypeResolver.NamespaceUris.GetIndex(targetDictionaryNamespace);
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var structureList = new List<Schema.Binary.TypeDescription>();
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var enumList = new List<Schema.Binary.TypeDescription>();
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// split into enumeration and structure types and sort
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// types with dependencies to the end of the list.
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SplitAndSortDictionary(dictionary, structureList, enumList);
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// create assembly for all types in the same module
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IComplexTypeBuilder complexTypeBuilder = m_complexTypeBuilderFactory.Create(
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targetDictionaryNamespace,
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targetNamespaceIndex,
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dictionary.Name);
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// Add all unknown enumeration types in dictionary
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await AddEnumTypesAsync(complexTypeBuilder, typeDictionary, enumList, allEnumTypes, serverEnumTypes, ct).ConfigureAwait(false);
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// handle structures
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int loopCounter = 0;
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int lastStructureCount = 0;
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while (structureList.Count > 0 &&
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structureList.Count != lastStructureCount &&
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loopCounter < MaxLoopCount)
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{
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loopCounter++;
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lastStructureCount = structureList.Count;
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var retryStructureList = new List<Schema.Binary.TypeDescription>();
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// build structured types
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foreach (Schema.Binary.TypeDescription item in structureList)
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{
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if (item is Schema.Binary.StructuredType structuredObject)
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{
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NodeId nodeId = dictionary.DataTypes.FirstOrDefault(d => d.Value.Name == item.Name).Key;
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if (nodeId == null)
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{
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Utils.LogError(TraceMasks.Error, "Skip the type definition of {0} because the data type node was not found.", item.Name);
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continue;
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}
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// find the data type node and the binary encoding id
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(ExpandedNodeId typeId, ExpandedNodeId binaryEncodingId, DataTypeNode dataTypeNode) =
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await m_complexTypeResolver.BrowseTypeIdsForDictionaryComponentAsync(nodeId, ct).ConfigureAwait(false);
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if (dataTypeNode == null)
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{
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Utils.LogError(TraceMasks.Error, "Skip the type definition of {0} because the data type node was not found.", item.Name);
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continue;
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}
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if (GetSystemType(typeId) != null)
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{
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XmlQualifiedName qName = structuredObject.QName ?? new XmlQualifiedName(structuredObject.Name, targetDictionaryNamespace);
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typeDictionary[qName] = ExpandedNodeId.ToNodeId(typeId, m_complexTypeResolver.NamespaceUris);
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Utils.LogInfo("Skip the type definition of {0} because the type already exists.", item.Name);
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continue;
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}
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// Use DataTypeDefinition attribute, if available (>=V1.04)
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StructureDefinition structureDefinition = null;
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if (!DisableDataTypeDefinition)
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{
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structureDefinition = GetStructureDefinition(dataTypeNode);
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}
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if (structureDefinition == null)
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{
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try
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{
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// convert the binary schema description to a StructureDefinition
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structureDefinition = structuredObject.ToStructureDefinition(
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binaryEncodingId,
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typeDictionary,
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m_complexTypeResolver.NamespaceUris,
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dataTypeNode.NodeId);
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}
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catch (DataTypeNotSupportedException)
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{
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Utils.LogError("Skipped the type definition of {0} because it is not supported.", item.Name);
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continue;
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}
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catch (ServiceResultException sre)
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{
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Utils.LogError(sre, "Skip the type definition of {0}.", item.Name);
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continue;
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}
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}
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ExpandedNodeIdCollection missingTypeIds = null;
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Type complexType = null;
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if (structureDefinition != null)
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{
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IList<NodeId> encodingIds;
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ExpandedNodeId xmlEncodingId;
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(encodingIds, binaryEncodingId, xmlEncodingId) = await m_complexTypeResolver.BrowseForEncodingsAsync(
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typeId, m_supportedEncodings, ct).ConfigureAwait(false);
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try
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{
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// build the actual .NET structured type in assembly
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(complexType, missingTypeIds) = await AddStructuredTypeAsync(
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complexTypeBuilder,
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structureDefinition,
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dataTypeNode.BrowseName,
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typeId,
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binaryEncodingId,
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xmlEncodingId,
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ct
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).ConfigureAwait(false);
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}
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catch (DataTypeNotSupportedException typeNotSupportedException)
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{
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Utils.LogInfo(typeNotSupportedException,
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"Skipped the type definition of {0} because it is not supported.", item.Name);
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continue;
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}
|
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// Add new type to factory
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if (complexType != null)
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{
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// match namespace and add new type to type factory
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|
foreach (var encodingId in encodingIds)
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{
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AddEncodeableType(encodingId, complexType);
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|
}
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|
AddEncodeableType(typeId, complexType);
|
|
XmlQualifiedName qName = structuredObject.QName ?? new XmlQualifiedName(structuredObject.Name, targetDictionaryNamespace);
|
|
typeDictionary[qName] = ExpandedNodeId.ToNodeId(typeId, m_complexTypeResolver.NamespaceUris);
|
|
}
|
|
}
|
|
|
|
if (complexType == null)
|
|
{
|
|
retryStructureList.Add(item);
|
|
Utils.LogTrace("Skipped the type definition of {0}, missing {1}. Retry in next round.", item.Name, missingTypeIds?.ToString() ?? string.Empty);
|
|
}
|
|
}
|
|
}
|
|
structureList = retryStructureList;
|
|
}
|
|
allTypesLoaded = allTypesLoaded && structureList.Count == 0;
|
|
}
|
|
catch (ServiceResultException sre)
|
|
{
|
|
Utils.LogError(sre,
|
|
"Unexpected error processing {0}.", dictionaryId.Value.Name);
|
|
}
|
|
}
|
|
return allTypesLoaded;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Load all custom types with DataTypeDefinition into the type factory.
|
|
/// </summary>
|
|
/// <returns>true if all types were loaded, false otherwise</returns>
|
|
private async Task<bool> LoadBaseDataTypesAsync(
|
|
IList<INode> serverEnumTypes,
|
|
IList<INode> serverStructTypes,
|
|
CancellationToken ct = default
|
|
)
|
|
{
|
|
IList<INode> enumTypesToDoList = new List<INode>();
|
|
IList<INode> structTypesToDoList = new List<INode>();
|
|
|
|
bool repeatDataTypeLoad;
|
|
do
|
|
{
|
|
// strip known types
|
|
serverEnumTypes = RemoveKnownTypes(serverEnumTypes);
|
|
serverStructTypes = RemoveKnownTypes(serverStructTypes);
|
|
|
|
repeatDataTypeLoad = false;
|
|
try
|
|
{
|
|
enumTypesToDoList = await LoadBaseEnumDataTypesAsync(serverEnumTypes, ct).ConfigureAwait(false);
|
|
structTypesToDoList = await LoadBaseStructureDataTypesAsync(serverStructTypes, ct).ConfigureAwait(false);
|
|
}
|
|
catch (DataTypeNotFoundException dtnfex)
|
|
{
|
|
Utils.LogWarning(dtnfex.Message);
|
|
foreach (ExpandedNodeId nodeId in dtnfex.NodeIds)
|
|
{
|
|
// add missing types to list
|
|
var dataTypeNode = await m_complexTypeResolver.FindAsync(nodeId, ct).ConfigureAwait(false);
|
|
if (dataTypeNode != null)
|
|
{
|
|
await AddEnumerationOrStructureTypeAsync(dataTypeNode, serverEnumTypes, serverStructTypes, ct).ConfigureAwait(false);
|
|
repeatDataTypeLoad = true;
|
|
}
|
|
else
|
|
{
|
|
Utils.LogWarning("Datatype {0} was not found.", nodeId);
|
|
}
|
|
}
|
|
}
|
|
} while (repeatDataTypeLoad);
|
|
|
|
// all types loaded
|
|
return enumTypesToDoList.Count == 0 && structTypesToDoList.Count == 0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Load all custom types with DataTypeDefinition into the type factory.
|
|
/// </summary>
|
|
/// <returns>true if all types were loaded, false otherwise</returns>
|
|
private async Task<IList<INode>> LoadBaseEnumDataTypesAsync(
|
|
IList<INode> serverEnumTypes,
|
|
CancellationToken ct = default
|
|
)
|
|
{
|
|
// strip known types
|
|
serverEnumTypes = RemoveKnownTypes(serverEnumTypes);
|
|
|
|
// add new enum Types for all namespaces
|
|
var enumTypesToDoList = new List<INode>();
|
|
int namespaceCount = m_complexTypeResolver.NamespaceUris.Count;
|
|
|
|
// create enumeration types for all namespaces
|
|
for (uint i = 0; i < namespaceCount; i++)
|
|
{
|
|
IComplexTypeBuilder complexTypeBuilder = null;
|
|
var enumTypes = serverEnumTypes.Where(node => node.NodeId.NamespaceIndex == i).ToList();
|
|
if (enumTypes.Count != 0)
|
|
{
|
|
if (complexTypeBuilder == null)
|
|
{
|
|
string targetNamespace = m_complexTypeResolver.NamespaceUris.GetString(i);
|
|
complexTypeBuilder = m_complexTypeBuilderFactory.Create(
|
|
targetNamespace,
|
|
(int)i);
|
|
}
|
|
foreach (INode enumType in enumTypes)
|
|
{
|
|
Type newType = await AddEnumTypeAsync(complexTypeBuilder, enumType as DataTypeNode, ct).ConfigureAwait(false);
|
|
if (newType != null)
|
|
{
|
|
// match namespace and add to type factory
|
|
AddEncodeableType(enumType.NodeId, newType);
|
|
}
|
|
else
|
|
{
|
|
enumTypesToDoList.Add(enumType);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// all types loaded, return remaining
|
|
return enumTypesToDoList;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Load all structure custom types with DataTypeDefinition into the type factory.
|
|
/// </summary>
|
|
/// <returns>true if all types were loaded, false otherwise</returns>
|
|
private async Task<IList<INode>> LoadBaseStructureDataTypesAsync(
|
|
IList<INode> serverStructTypes,
|
|
CancellationToken ct = default
|
|
)
|
|
{
|
|
// strip known types
|
|
serverStructTypes = RemoveKnownTypes(serverStructTypes);
|
|
|
|
// add new enum Types for all namespaces
|
|
int namespaceCount = m_complexTypeResolver.NamespaceUris.Count;
|
|
|
|
bool retryAddStructType;
|
|
var structTypesToDoList = new List<INode>();
|
|
IList<INode> structTypesWorkList = serverStructTypes;
|
|
|
|
// allow the loader to cache the encodings
|
|
IList<ExpandedNodeId> nodeIds = serverStructTypes.Select(n => n.NodeId).ToList();
|
|
_ = await m_complexTypeResolver.BrowseForEncodingsAsync(nodeIds, m_supportedEncodings, ct).ConfigureAwait(false);
|
|
|
|
// create structured types for all namespaces
|
|
int loopCounter = 0;
|
|
do
|
|
{
|
|
loopCounter++;
|
|
retryAddStructType = false;
|
|
for (uint i = 0; i < namespaceCount; i++)
|
|
{
|
|
IComplexTypeBuilder complexTypeBuilder = null;
|
|
var structTypes = structTypesWorkList.Where(node => node.NodeId.NamespaceIndex == i).ToList();
|
|
if (structTypes.Count != 0)
|
|
{
|
|
if (complexTypeBuilder == null)
|
|
{
|
|
string targetNamespace = m_complexTypeResolver.NamespaceUris.GetString(i);
|
|
complexTypeBuilder = m_complexTypeBuilderFactory.Create(
|
|
targetNamespace,
|
|
(int)i);
|
|
}
|
|
foreach (INode structType in structTypes)
|
|
{
|
|
Type newType = null;
|
|
if (!(structType is DataTypeNode dataTypeNode) ||
|
|
dataTypeNode.IsAbstract)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
StructureDefinition structureDefinition = GetStructureDefinition(dataTypeNode);
|
|
if (structureDefinition != null)
|
|
{
|
|
(IList<NodeId> encodingIds, ExpandedNodeId binaryEncodingId, ExpandedNodeId xmlEncodingId)
|
|
= await m_complexTypeResolver.BrowseForEncodingsAsync(structType.NodeId, m_supportedEncodings, ct).ConfigureAwait(false);
|
|
try
|
|
{
|
|
ExpandedNodeId typeId = NormalizeExpandedNodeId(structType.NodeId);
|
|
ExpandedNodeIdCollection missingTypeIds;
|
|
(newType, missingTypeIds) = await AddStructuredTypeAsync(
|
|
complexTypeBuilder,
|
|
structureDefinition,
|
|
dataTypeNode.BrowseName,
|
|
typeId,
|
|
binaryEncodingId,
|
|
xmlEncodingId,
|
|
ct
|
|
).ConfigureAwait(false);
|
|
|
|
if (missingTypeIds?.Count > 0)
|
|
{
|
|
var missingTypeIdsFromWorkList = new ExpandedNodeIdCollection();
|
|
foreach (ExpandedNodeId missingTypeId in missingTypeIds)
|
|
{
|
|
INode typeMatch = structTypesWorkList.FirstOrDefault(n => n.NodeId == missingTypeId);
|
|
if (typeMatch == null)
|
|
{
|
|
missingTypeIdsFromWorkList.Add(missingTypeId);
|
|
}
|
|
}
|
|
foreach (ExpandedNodeId id in missingTypeIdsFromWorkList)
|
|
{
|
|
if (!structTypesToDoList.Where(n => n.NodeId == id).Any())
|
|
{
|
|
structTypesToDoList.Add(await m_complexTypeResolver.FindAsync(id, ct).ConfigureAwait(false));
|
|
}
|
|
retryAddStructType = true;
|
|
}
|
|
}
|
|
}
|
|
catch (DataTypeNotSupportedException)
|
|
{
|
|
Utils.LogError("Skipped the type definition of {0} because it is not supported.", dataTypeNode.BrowseName.Name);
|
|
}
|
|
catch
|
|
{
|
|
// creating the new type failed, likely a missing dependency, retry later
|
|
retryAddStructType = true;
|
|
}
|
|
|
|
if (newType != null)
|
|
{
|
|
foreach (NodeId encodingId in encodingIds)
|
|
{
|
|
AddEncodeableType(encodingId, newType);
|
|
}
|
|
AddEncodeableType(structType.NodeId, newType);
|
|
}
|
|
}
|
|
|
|
if (newType == null)
|
|
{
|
|
structTypesToDoList.Add(structType);
|
|
if (structureDefinition != null)
|
|
{
|
|
retryAddStructType = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// due to type dependencies, retry missing types until there is no more progress
|
|
if (retryAddStructType &&
|
|
structTypesWorkList.Count != structTypesToDoList.Count &&
|
|
loopCounter < MaxLoopCount)
|
|
{
|
|
structTypesWorkList = structTypesToDoList;
|
|
structTypesToDoList = new List<INode>();
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
|
|
} while (retryAddStructType);
|
|
|
|
// all types loaded
|
|
return structTypesToDoList;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Return the structure definition from a DataTypeDefinition
|
|
/// </summary>
|
|
private StructureDefinition GetStructureDefinition(DataTypeNode dataTypeNode)
|
|
{
|
|
if (dataTypeNode.DataTypeDefinition?.Body is StructureDefinition structureDefinition)
|
|
{
|
|
// Validate the DataTypeDefinition structure,
|
|
// but not if the type is supported
|
|
if (structureDefinition.Fields == null ||
|
|
structureDefinition.BaseDataType.IsNullNodeId ||
|
|
structureDefinition.BinaryEncodingId.IsNull)
|
|
{
|
|
return null;
|
|
}
|
|
// Validate the structure according to Part3, Table 36
|
|
foreach (StructureField field in structureDefinition.Fields)
|
|
{
|
|
// validate if the DataTypeDefinition is correctly
|
|
// filled out, some servers don't do it yet...
|
|
if (field.BinaryEncodingId.IsNull ||
|
|
field.DataType.IsNullNodeId ||
|
|
field.TypeId.IsNull ||
|
|
field.Name == null)
|
|
{
|
|
return null;
|
|
}
|
|
if (!(field.ValueRank == ValueRanks.Scalar ||
|
|
field.ValueRank >= ValueRanks.OneDimension))
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
return structureDefinition;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Helper to ensure the expanded nodeId contains a valid namespaceUri.
|
|
/// </summary>
|
|
/// <param name="expandedNodeId">The expanded nodeId.</param>
|
|
/// <returns>The normalized expanded nodeId.</returns>
|
|
private ExpandedNodeId NormalizeExpandedNodeId(ExpandedNodeId expandedNodeId)
|
|
{
|
|
var nodeId = ExpandedNodeId.ToNodeId(expandedNodeId, m_complexTypeResolver.NamespaceUris);
|
|
return NodeId.ToExpandedNodeId(nodeId, m_complexTypeResolver.NamespaceUris);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add data type to enumeration or structure base type list depending on supertype.
|
|
/// </summary>
|
|
private async Task AddEnumerationOrStructureTypeAsync(INode dataTypeNode, IList<INode> serverEnumTypes, IList<INode> serverStructTypes, CancellationToken ct = default)
|
|
{
|
|
NodeId superType = ExpandedNodeId.ToNodeId(dataTypeNode.NodeId, m_complexTypeResolver.NamespaceUris);
|
|
while (true)
|
|
{
|
|
superType = await m_complexTypeResolver.FindSuperTypeAsync(superType, ct).ConfigureAwait(false);
|
|
if (superType.IsNullNodeId)
|
|
{
|
|
throw new ServiceResultException(StatusCodes.BadNodeIdInvalid, $"SuperType for {dataTypeNode.NodeId} not found.");
|
|
}
|
|
if (superType == DataTypeIds.Enumeration)
|
|
{
|
|
serverEnumTypes.Insert(0, dataTypeNode);
|
|
break;
|
|
}
|
|
else if (superType == DataTypeIds.Structure)
|
|
{
|
|
serverStructTypes.Insert(0, dataTypeNode);
|
|
break;
|
|
}
|
|
else if (TypeInfo.GetBuiltInType(superType) != BuiltInType.Null)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Remove all known types in the type factory from a list of DataType nodes.
|
|
/// </summary>
|
|
private IList<INode> RemoveKnownTypes(IList<INode> nodeList)
|
|
{
|
|
return nodeList.Where(
|
|
node => GetSystemType(node.NodeId) == null).Distinct().ToList();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the factory system type for an expanded node id.
|
|
/// </summary>
|
|
private Type GetSystemType(ExpandedNodeId nodeId)
|
|
{
|
|
if (!nodeId.IsAbsolute)
|
|
{
|
|
nodeId = NormalizeExpandedNodeId(nodeId);
|
|
}
|
|
return m_complexTypeResolver.Factory.GetSystemType(nodeId);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add an enum type defined in a binary schema dictionary.
|
|
/// </summary>
|
|
private async Task AddEnumTypesAsync(
|
|
IComplexTypeBuilder complexTypeBuilder,
|
|
Dictionary<XmlQualifiedName, NodeId> typeDictionary,
|
|
IList<Schema.Binary.TypeDescription> enumList,
|
|
IList<INode> allEnumerationTypes,
|
|
IList<INode> enumerationTypes,
|
|
CancellationToken ct = default)
|
|
{
|
|
foreach (Schema.Binary.TypeDescription item in enumList)
|
|
{
|
|
Type newType = null;
|
|
DataTypeNode enumDescription = null;
|
|
DataTypeNode enumType = enumerationTypes.FirstOrDefault(node =>
|
|
node.BrowseName.Name == item.Name &&
|
|
(node.BrowseName.NamespaceIndex == complexTypeBuilder.TargetNamespaceIndex ||
|
|
complexTypeBuilder.TargetNamespaceIndex == -1))
|
|
as DataTypeNode;
|
|
if (enumType != null)
|
|
{
|
|
enumDescription = enumType;
|
|
|
|
// try dictionary enum definition
|
|
if (item is Schema.Binary.EnumeratedType enumeratedObject)
|
|
{
|
|
// 1. use Dictionary entry
|
|
var enumDefinition = enumeratedObject.ToEnumDefinition();
|
|
|
|
// Add EnumDefinition to cache
|
|
m_dataTypeDefinitionCache[enumType.NodeId] = enumDefinition;
|
|
|
|
newType = complexTypeBuilder.AddEnumType(enumeratedObject.Name, enumDefinition);
|
|
}
|
|
if (newType == null)
|
|
{
|
|
// 2. use node cache
|
|
var dataTypeNode = await m_complexTypeResolver.FindAsync(enumType.NodeId, ct).ConfigureAwait(false) as DataTypeNode;
|
|
newType = await AddEnumTypeAsync(complexTypeBuilder, dataTypeNode, ct).ConfigureAwait(false);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
enumDescription = allEnumerationTypes.FirstOrDefault(node =>
|
|
node.BrowseName.Name == item.Name &&
|
|
(node.BrowseName.NamespaceIndex == complexTypeBuilder.TargetNamespaceIndex ||
|
|
complexTypeBuilder.TargetNamespaceIndex == -1))
|
|
as DataTypeNode;
|
|
}
|
|
if (enumDescription != null)
|
|
{
|
|
var qName = new XmlQualifiedName(item.Name, complexTypeBuilder.TargetNamespace);
|
|
typeDictionary[qName] = enumDescription.NodeId;
|
|
}
|
|
if (newType != null)
|
|
{
|
|
// match namespace and add to type factory
|
|
AddEncodeableType(enumType.NodeId, newType);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Helper to add new type with absolute ExpandedNodeId.
|
|
/// </summary>
|
|
private void AddEncodeableType(ExpandedNodeId nodeId, Type type)
|
|
{
|
|
if (NodeId.IsNull(nodeId) || type == null)
|
|
{
|
|
return;
|
|
}
|
|
ExpandedNodeId internalNodeId = NormalizeExpandedNodeId(nodeId);
|
|
Utils.LogDebug("Adding Type {0} as: {1}", type.FullName, internalNodeId);
|
|
m_complexTypeResolver.Factory.AddEncodeableType(internalNodeId, type);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add an enum type defined in a DataType node.
|
|
/// </summary>
|
|
private async Task<Type> AddEnumTypeAsync(
|
|
IComplexTypeBuilder complexTypeBuilder,
|
|
DataTypeNode enumTypeNode,
|
|
CancellationToken ct = default
|
|
)
|
|
{
|
|
Type newType = null;
|
|
if (enumTypeNode != null)
|
|
{
|
|
QualifiedName name = enumTypeNode.BrowseName;
|
|
|
|
// 1. use DataTypeDefinition
|
|
if (DisableDataTypeDefinition ||
|
|
!(enumTypeNode.DataTypeDefinition?.Body is EnumDefinition enumDefinition))
|
|
{
|
|
// browse for EnumFields or EnumStrings property
|
|
object enumTypeArray = await m_complexTypeResolver.GetEnumTypeArrayAsync(enumTypeNode.NodeId, ct).ConfigureAwait(false);
|
|
if (enumTypeArray is ExtensionObject[] extensionObject)
|
|
{
|
|
// 2. use EnumValues
|
|
enumDefinition = extensionObject.ToEnumDefinition();
|
|
}
|
|
else if (enumTypeArray is LocalizedText[] localizedText)
|
|
{
|
|
// 3. use EnumStrings
|
|
enumDefinition = localizedText.ToEnumDefinition();
|
|
}
|
|
else
|
|
{
|
|
// 4. Give up
|
|
enumDefinition = null;
|
|
}
|
|
}
|
|
|
|
if (enumDefinition != null)
|
|
{
|
|
// Add EnumDefinition to cache
|
|
m_dataTypeDefinitionCache[enumTypeNode.NodeId] = enumDefinition;
|
|
|
|
newType = complexTypeBuilder.AddEnumType(name, enumDefinition);
|
|
}
|
|
}
|
|
return newType;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add structured type to assembly with StructureDefinition.
|
|
/// </summary>
|
|
private async Task<(Type structureType, ExpandedNodeIdCollection missingTypes)> AddStructuredTypeAsync(
|
|
IComplexTypeBuilder complexTypeBuilder,
|
|
StructureDefinition structureDefinition,
|
|
QualifiedName typeName,
|
|
ExpandedNodeId complexTypeId,
|
|
ExpandedNodeId binaryEncodingId,
|
|
ExpandedNodeId xmlEncodingId,
|
|
CancellationToken ct = default
|
|
)
|
|
{
|
|
// init missing type list
|
|
ExpandedNodeIdCollection missingTypes = null;
|
|
|
|
var localDataTypeId = ExpandedNodeId.ToNodeId(complexTypeId, m_complexTypeResolver.NamespaceUris);
|
|
bool allowSubTypes = IsAllowSubTypes(structureDefinition);
|
|
|
|
// check all types
|
|
var typeList = new List<Type>();
|
|
foreach (StructureField field in structureDefinition.Fields)
|
|
{
|
|
Type newType = await GetFieldTypeAsync(field, allowSubTypes, ct).ConfigureAwait(false);
|
|
if (newType == null &&
|
|
!IsRecursiveDataType(localDataTypeId, field.DataType))
|
|
{
|
|
if (missingTypes == null)
|
|
{
|
|
missingTypes = new ExpandedNodeIdCollection() { field.DataType };
|
|
}
|
|
else if (!missingTypes.Contains(field.DataType))
|
|
{
|
|
missingTypes.Add(field.DataType);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
typeList.Add(newType);
|
|
}
|
|
}
|
|
|
|
if (missingTypes != null)
|
|
{
|
|
return (null, missingTypes);
|
|
}
|
|
|
|
// Add StructureDefinition to cache
|
|
m_dataTypeDefinitionCache[localDataTypeId] = structureDefinition;
|
|
|
|
IComplexTypeFieldBuilder fieldBuilder = complexTypeBuilder.AddStructuredType(
|
|
typeName,
|
|
structureDefinition
|
|
);
|
|
|
|
fieldBuilder.AddTypeIdAttribute(complexTypeId, binaryEncodingId, xmlEncodingId);
|
|
|
|
int order = 1;
|
|
List<Type>.Enumerator typeListEnumerator = typeList.GetEnumerator();
|
|
foreach (StructureField field in structureDefinition.Fields)
|
|
{
|
|
typeListEnumerator.MoveNext();
|
|
|
|
// check for recursive data type:
|
|
// field has the same data type as the parent structure
|
|
var nodeId = ExpandedNodeId.ToNodeId(complexTypeId, m_complexTypeResolver.NamespaceUris);
|
|
bool isRecursiveDataType = IsRecursiveDataType(nodeId, field.DataType);
|
|
if (isRecursiveDataType)
|
|
{
|
|
fieldBuilder.AddField(field, fieldBuilder.GetStructureType(field.ValueRank), order);
|
|
}
|
|
else
|
|
{
|
|
fieldBuilder.AddField(field, typeListEnumerator.Current, order);
|
|
}
|
|
order++;
|
|
}
|
|
|
|
return (fieldBuilder.CreateType(), missingTypes);
|
|
}
|
|
|
|
bool IsAllowSubTypes(StructureDefinition structureDefinition)
|
|
{
|
|
switch (structureDefinition.StructureType)
|
|
{
|
|
case StructureType.UnionWithSubtypedValues:
|
|
case StructureType.StructureWithSubtypedValues:
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private async Task<bool> IsAbstractTypeAsync(NodeId fieldDataType, CancellationToken ct = default)
|
|
{
|
|
var dataTypeNode = await m_complexTypeResolver.FindAsync(fieldDataType, ct).ConfigureAwait(false) as DataTypeNode;
|
|
return dataTypeNode?.IsAbstract == true;
|
|
}
|
|
|
|
private bool IsRecursiveDataType(NodeId structureDataType, NodeId fieldDataType)
|
|
=> fieldDataType.Equals(structureDataType);
|
|
|
|
/// <summary>
|
|
/// Determine the type of a field in a StructureField definition.
|
|
/// </summary>
|
|
private async Task<Type> GetFieldTypeAsync(StructureField field, bool allowSubTypes, CancellationToken ct = default)
|
|
{
|
|
if (field.ValueRank != ValueRanks.Scalar &&
|
|
field.ValueRank < ValueRanks.OneDimension)
|
|
{
|
|
throw new DataTypeNotSupportedException(field.DataType, $"The ValueRank {field.ValueRank} is not supported.");
|
|
}
|
|
|
|
Type fieldType = field.DataType.NamespaceIndex == 0 ?
|
|
TypeInfo.GetSystemType(field.DataType, m_complexTypeResolver.Factory) :
|
|
GetSystemType(field.DataType);
|
|
|
|
if (fieldType == null)
|
|
{
|
|
NodeId superType = await GetBuiltInSuperTypeAsync(field.DataType, allowSubTypes, field.IsOptional, ct).ConfigureAwait(false);
|
|
if (superType?.IsNullNodeId == false)
|
|
{
|
|
field.DataType = superType;
|
|
return await GetFieldTypeAsync(field, allowSubTypes, ct).ConfigureAwait(false);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
if (field.ValueRank == ValueRanks.OneDimension)
|
|
{
|
|
fieldType = fieldType.MakeArrayType();
|
|
}
|
|
else if (field.ValueRank >= ValueRanks.TwoDimensions)
|
|
{
|
|
fieldType = fieldType.MakeArrayType(field.ValueRank);
|
|
}
|
|
|
|
return fieldType;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Find superType for a datatype.
|
|
/// </summary>
|
|
private async Task<NodeId> GetBuiltInSuperTypeAsync(NodeId dataType, bool allowSubTypes, bool isOptional, CancellationToken ct = default)
|
|
{
|
|
const int MaxSuperTypes = 100;
|
|
|
|
int iterations = 0;
|
|
NodeId superType = dataType;
|
|
while (iterations++ < MaxSuperTypes)
|
|
{
|
|
superType = await m_complexTypeResolver.FindSuperTypeAsync(superType, ct).ConfigureAwait(false);
|
|
if (superType?.IsNullNodeId != false)
|
|
{
|
|
return null;
|
|
}
|
|
if (superType.NamespaceIndex == 0)
|
|
{
|
|
if (superType == DataTypeIds.Enumeration &&
|
|
dataType.NamespaceIndex == 0)
|
|
{
|
|
// enumerations of namespace 0 in a structure
|
|
// which are not in the type system are encoded as UInt32
|
|
return new NodeId((uint)BuiltInType.UInt32);
|
|
}
|
|
if (superType == DataTypeIds.Enumeration)
|
|
{
|
|
return null;
|
|
}
|
|
else if (superType == DataTypeIds.Structure)
|
|
{
|
|
// throw on invalid combinations of allowSubTypes, isOptional and abstract types
|
|
// in such case the encoding as ExtensionObject is undetermined and not specified
|
|
if ((dataType != DataTypeIds.Structure) &&
|
|
((allowSubTypes && !isOptional) || !allowSubTypes) &&
|
|
await IsAbstractTypeAsync(dataType, ct).ConfigureAwait(false))
|
|
{
|
|
throw new DataTypeNotSupportedException("Invalid definition of a abstract subtype of a structure.");
|
|
}
|
|
|
|
if (allowSubTypes && isOptional)
|
|
{
|
|
return superType;
|
|
}
|
|
return null;
|
|
}
|
|
// end search if a valid BuiltInType is found. Treat type as opaque.
|
|
else if (superType.IdType == IdType.Numeric &&
|
|
(uint)superType.Identifier >= (uint)BuiltInType.Boolean &&
|
|
(uint)superType.Identifier <= (uint)BuiltInType.DiagnosticInfo)
|
|
{
|
|
return superType;
|
|
}
|
|
// no valid supertype found
|
|
else if (superType == DataTypeIds.BaseDataType)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Split the dictionary types into a list of structures and enumerations.
|
|
/// Sort the structures by dependencies, with structures with dependent
|
|
/// types at the end of the list, so they can be added to the factory in order.
|
|
/// </summary>
|
|
private void SplitAndSortDictionary(
|
|
DataDictionary dictionary,
|
|
List<Schema.Binary.TypeDescription> structureList,
|
|
List<Schema.Binary.TypeDescription> enumList
|
|
)
|
|
{
|
|
foreach (Schema.Binary.TypeDescription item in dictionary.TypeDictionary.Items)
|
|
{
|
|
if (item is Schema.Binary.StructuredType structuredObject)
|
|
{
|
|
IEnumerable<Schema.Binary.FieldType> dependentFields = structuredObject.Field.Where(f => f.TypeName.Namespace == dictionary.TypeDictionary.TargetNamespace);
|
|
if (!dependentFields.Any())
|
|
{
|
|
structureList.Insert(0, structuredObject);
|
|
}
|
|
else
|
|
{
|
|
structureList.Add(structuredObject);
|
|
}
|
|
}
|
|
else if (item is Schema.Binary.EnumeratedType)
|
|
{
|
|
enumList.Add(item);
|
|
}
|
|
else if (item is Schema.Binary.OpaqueType)
|
|
{
|
|
// no need to handle Opaque types
|
|
}
|
|
else
|
|
{
|
|
throw ServiceResultException.Create(StatusCodes.BadUnexpectedError,
|
|
"Unexpected Type in binary schema: {0}.", item.GetType().Name);
|
|
}
|
|
}
|
|
}
|
|
#endregion Private Members
|
|
|
|
#region Private Fields
|
|
private IComplexTypeResolver m_complexTypeResolver;
|
|
private IComplexTypeFactory m_complexTypeBuilderFactory;
|
|
private NodeIdDictionary<DataTypeDefinition> m_dataTypeDefinitionCache = new NodeIdDictionary<DataTypeDefinition>();
|
|
private static readonly string[] m_supportedEncodings = new string[] { BrowseNames.DefaultBinary, BrowseNames.DefaultXml, BrowseNames.DefaultJson };
|
|
#endregion Private Fields
|
|
}
|
|
}//namespace
|