TypeScript node-opcua-data-model.makeNodeClassMask函數代碼示例

    it("should browse multiple nodes ", async () => {

        const nodeToBrowse = /*BrowseDescription*/ {
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: false,
            nodeClassMask: makeNodeClassMask("Object"),
            nodeId: "i=84",
            referenceTypeId: null,
            resultMask: makeResultMask("ReferenceType | IsForward | BrowseName | NodeClass | TypeDefinition")
        };

        const browseResults = await session.browse([nodeToBrowse, nodeToBrowse]);

        browseResults.should.be.instanceOf(Array);
        browseResults[0].constructor.name.should.eql("BrowseResult");
        browseResults[0].references!.length.should.eql(3);

        browseResults[0].references![0].browseName.toString().should.eql("Objects");
        browseResults[0].references![1].browseName.toString().should.eql("Types");
        browseResults[0].references![2].browseName.toString().should.eql("Views");

        browseResults[1].constructor.name.should.eql("BrowseResult");
        browseResults[1].references!.length.should.eql(3);
        browseResults[1].references![0].browseName.toString().should.eql("Objects");
        browseResults[1].references![1].browseName.toString().should.eql("Types");
        browseResults[1].references![2].browseName.toString().should.eql("Views");
    });

 const nodesToBrowse2 = references.map((ref: ReferenceDescription) => {
     return {
         browseDirection: BrowseDirection.Inverse,
         includeSubtypes: false,
         nodeClassMask: makeNodeClassMask("Object | Variable"),
         nodeId: ref.nodeId,
         referenceTypeId: resolveNodeId("HasDescription"),
         resultMask: makeResultMask("NodeId | ReferenceType | BrowseName | NodeClass | TypeDefinition")
     };
 });

export async function extractNamespaceDataType(
  session: IBasicSession,
  dataTypeManager: ExtraDataTypeManager
) {

    // read namespace array
    const dataValueNamespaceArray = await session.read({
        attributeId: AttributeIds.Value,
        nodeId: resolveNodeId("Server_NamespaceArray")
    });

    if (dataValueNamespaceArray.statusCode === StatusCodes.Good) {
        dataTypeManager.setNamespaceArray(dataValueNamespaceArray.value.value as string[]);
    }

    // DatType/OPCBinary => i=93 [OPCBinarySchema_TypeSystem]
    const opcBinaryNodeId = resolveNodeId("OPCBinarySchema_TypeSystem");

    const nodeToBrowse = {
        browseDirection: BrowseDirection.Forward,
        includeSubtypes: false,
        nodeClassMask: makeNodeClassMask("Variable"),
        nodeId: opcBinaryNodeId,
        referenceTypeId: resolveNodeId("HasComponent"),
        resultMask: makeResultMask("ReferenceType | IsForward | BrowseName | NodeClass | TypeDefinition")
    };
    const result = await session.browse(nodeToBrowse);

    // filter nodes that have the expected namespace Index
    const references = result.references!.filter(
      (e: ReferenceDescription) => e.nodeId.namespace !== 0);

    /* istanbul ignore next */
    if (references.length === 0) {
        return;
    }
    for (const ref of references) {
        const typeDictionary = await extractSchema(session, ref.nodeId);
        await exploreDataTypeDefinition(session, ref.nodeId, typeDictionary, dataTypeManager.namespaceArray);
        dataTypeManager.registerTypeDictionary(ref.nodeId, typeDictionary);
    }

}

    it("should return 1 refs for browseNode on Server (BrowseDirection.Forward) and NodeClass set to Method", () => {

        const mask = makeNodeClassMask("Method");

        const server = rootFolder.objects.server;
        server.browseName.toString().should.equal("Server");

        const references = server.browseNode({
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            nodeClassMask: mask, // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
            referenceTypeId: "HierarchicalReferences",
            resultMask: 0x3F
        });

        const browseNames = references.map((r) => r.browseName.name);

        references.length.should.equal(1);

        const expectedBrowseNames = ["GetMonitoredItems"];
        _.intersection(browseNames, expectedBrowseNames).length.should.eql(expectedBrowseNames.length);

    });

export async function exploreDataTypeDefinition(
  session: IBasicSession,
  dataTypeDictionaryTypeNode: NodeId,
  typeDictionary: TypeDictionary,
  namespaces: string[]
) {

    const nodeToBrowse = {
        browseDirection: BrowseDirection.Forward,
        includeSubtypes: false,
        nodeClassMask: makeNodeClassMask("Variable"),
        nodeId: dataTypeDictionaryTypeNode,
        referenceTypeId: resolveNodeId("HasComponent"),
        resultMask: makeResultMask("ReferenceType | IsForward | BrowseName | NodeClass | TypeDefinition")
    };
    const result = await session.browse(nodeToBrowse);
    const references = result.references || [];

    /* istanbul ignore next */
    if (references.length === 0) {
        return;
    }

    // request the Definition of each not
    const nodesToBrowse2 = references.map((ref: ReferenceDescription) => {
        return {
            browseDirection: BrowseDirection.Inverse,
            includeSubtypes: false,
            nodeClassMask: makeNodeClassMask("Object | Variable"),
            nodeId: ref.nodeId,
            referenceTypeId: resolveNodeId("HasDescription"),
            resultMask: makeResultMask("NodeId | ReferenceType | BrowseName | NodeClass | TypeDefinition")
        };
    });
    const results2 = await session.browse(nodesToBrowse2);

    const binaryEncodingNodeIds = results2.map((br: BrowseResult) => {
        const defaultBin =  br.references!.filter((r: ReferenceDescription) => r.browseName.toString() === "Default Binary");

        /* istanbul ignore next */
        if (defaultBin.length < 1) {
            return ExpandedNodeId;
        }
        return ExpandedNodeId.fromNodeId(defaultBin[0].nodeId, namespaces[defaultBin[0].nodeId.namespace]);
    });

    const tuples = _.zip(references, binaryEncodingNodeIds);

    for (const [ref, defaultBinary] of tuples) {
        const name = ref.browseName!.name!.toString();
        const constructor = getOrCreateConstructor(name, typeDictionary, defaultBinary);

        /* istanbul ignore next */
        if (doDebug) {
            try {
                const testObject = new constructor();
                debugLog(testObject.toString());
            } catch (err) {
                debugLog(err.message);
            }
        }
    }
}

export async function getDataTypeDefinition(session: IBasicSession, dataTypeNodeId: NodeId): Promise<void> {

    // DataType
    //    | 1
    //    | n
    //    +- HasEncoding-> "Default Binary"
    //                           |
    //                           +-- HasDescription -> "MyItemType"
    //                                                       +- ComponentOf -> Schema
    //
    // Note that in 1.04 compliant server, DataType definition might be available
    //           in a DataTypeDefinition attributes of the DataType object
    //           However this is a brand new aspect of the specification and is not widely implemented
    //           it is also optional
    //           It will takes time for old opcua server to be refurbished and we may have to
    //           keep the current method to access type definition from embedded xsd.
    //
    const nodeToBrowse1 = {
        browseDirection: BrowseDirection.Forward,
        includeSubtypes: false,
        nodeClassMask: makeNodeClassMask("Object"),
        nodeId: dataTypeNodeId,
        referenceTypeId: resolveNodeId("HasEncoding"),
        resultMask: makeResultMask("NodeId | ReferenceType | BrowseName | NodeClass | TypeDefinition")
    };
    const result1 = await session.browse(nodeToBrowse1);
    assert(result1.references && result1.references.length === 1);

    const encodingReference = result1.references![0]!;
    assert(encodingReference.browseName.toString() === "Default Binary");

    // Xx console.log("Has Encoding ", encodingReference.browseName.toString(), encodingReference.nodeId.toString());

    const nodeToBrowse2 = {
        browseDirection: BrowseDirection.Forward,
        includeSubtypes: false,
        nodeClassMask: makeNodeClassMask("Variable"),
        nodeId: encodingReference.nodeId,
        referenceTypeId: resolveNodeId("HasDescription"),
        resultMask: makeResultMask("NodeId | ReferenceType | BrowseName | NodeClass | TypeDefinition")
    };
    const result2 = await session.browse(nodeToBrowse2);
    assert(result2.references && result2.references.length === 1);
    const definitionRef = result2.references![0]!;

    // xx console.log("HasDefinition ", definitionRef.browseName.toString(), definitionRef.nodeId.toString());

    const nameDataValue = await session.read({
        attributeId: AttributeIds.Value,
        nodeId: definitionRef.nodeId
    });
    const name = nameDataValue.value.value as string;
    //  xx console.log("name ", name);

    // find parent node to access the xsd File
    const nodeToBrowse3 = {
        browseDirection: BrowseDirection.Inverse,
        includeSubtypes: false,
        nodeClassMask: makeNodeClassMask("Variable"),
        nodeId: definitionRef.nodeId,
        referenceTypeId: resolveNodeId("HasComponent"),
        resultMask: makeResultMask("NodeId | ReferenceType | BrowseName | NodeClass | TypeDefinition")
    };
    const result3 = await session.browse(nodeToBrowse3);
    assert(result3.references && result3.references.length === 1);
    const schemaNode = result3.references![0]!.nodeId;
    const typeDictionary = await extractSchema(session, schemaNode);
    return (typeDictionary.structuredTypes as any)[name];
}

export function readUAStructure(
    proxyManager: UAProxyManager,
    obj: any,
    callback: ErrorCallback
) {

    const session = proxyManager.session;

    //   0   Object
    //   1   Variable
    //   2   Method
    const nodeId = obj.nodeId;
    const nodesToBrowse = [

        // Components (except Methods)
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            nodeClassMask: makeNodeClassMask("Object | Variable"), // we don't want Method here
            nodeId,
            referenceTypeId: makeRefId("HasComponent"),
            resultMask,
        },
        // Properties
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            // nodeClassMask: makeNodeClassMask("Variable"),
            nodeId,
            referenceTypeId: makeRefId("HasProperty"),
            resultMask
        },

        // Methods
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            nodeClassMask: makeNodeClassMask("Method"),
            nodeId,
            referenceTypeId: makeRefId("HasComponent"),
            resultMask
        },
        // TypeDefinition
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Both,
            includeSubtypes: true,
            nodeId,
            referenceTypeId: makeRefId("HasTypeDefinition"),
            resultMask
        },
        // FromState
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            nodeId,
            referenceTypeId: makeRefId("FromState"),
            resultMask
        },
        // ToState
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            nodeId,
            referenceTypeId: makeRefId("ToState"),
            resultMask
        },
        // (for folders ) Organizes
        {
            // BrowseDescription
            browseDirection: BrowseDirection.Forward,
            includeSubtypes: true,
            nodeId,
            referenceTypeId: makeRefId("Organizes"),
            resultMask
        }
    ];
    session.browse(nodesToBrowse, (err: Error | null, browseResults?: BrowseResult[]) => {

        function t(references: ReferenceDescription[]) {
            return references.map((r: ReferenceDescription) => r.browseName.name + " " + r.nodeId.toString());
        }

        browseResults = browseResults || [];

        // istanbul ignore next
        if (err) {
            return callback(err);
        }

        // xx console.log("Components", t(results[0].references));
        // xx console.log("Properties", t(results[1].references));
        // xx console.log("Methods", t(results[2].references));
        async.parallel([

//.........這裏部分代碼省略.........