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annebanneb
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added describerecord
1 parent 055c19a commit 1862c64

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3 files changed

+140
-4
lines changed

3 files changed

+140
-4
lines changed

‎cswrequests.js

+10-4
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
import { parseXml, evaluateXPath } from "./parsexml.js";
1+
import { parseXml, evaluateXPath, getDCMITerms } from "./parsexml.js";
22

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const nodeValue = (nodes, index) => nodes[index] ? nodes[index].nodeValue : undefined;
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const nodeArray = (nodes) => nodes?.length ? Array.from(nodes).map(node => node.nodeValue) : [];
@@ -88,15 +88,21 @@ export async function fetchDescribeRecord(url, cswVersion) {
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const briefRecordTypeName = bareTypeName(nodeArray(evaluateXPath(cswDescribeRecord, '//xs:element[@name="BriefRecord"]/@type')));
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const briefRecordType = nodeArray(evaluateXPath(cswDescribeRecord, `//xs:complexType[@name="${briefRecordTypeName}"]/xs:complexContent/xs:extension/xs:sequence/xs:element/@ref`));
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const summaryRecordTypeName = bareTypeName(nodeArray(evaluateXPath(cswDescribeRecord, '//xs:element[@name="SummaryRecord"]/@type')))
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const summaryRecordTypeName = bareTypeName(nodeArray(evaluateXPath(cswDescribeRecord, '//xs:element[@name="SummaryRecord"]/@type')));
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const summaryRecordType = nodeArray(evaluateXPath(cswDescribeRecord, `//xs:complexType[@name="${summaryRecordTypeName}"]/xs:complexContent/xs:extension/xs:sequence/xs:element/@ref`));
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const recordTypeName = bareTypeName(nodeArray(evaluateXPath(cswDescribeRecord, '//xs:element[@name="Record"]/@type')));
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const recordType = nodeArray(evaluateXPath(cswDescribeRecord, `//xs:complexType[@name="${recordTypeName}"]/xs:complexContent/xs:extension/xs:sequence/xs:element/@ref`));
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const recordFields = recordType.map(field=>{return {name: field}});
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recordFields.push(...(await getDCMITerms()));
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const summaryRecord = {
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cswVersion,
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recordTypes: nodeArray(evaluateXPath(cswDescribeRecord, '//csw:DescribeRecordResponse/csw:SchemaComponent/xs:schema/xs:element/@name')),
100+
//recordTypes: nodeArray(evaluateXPath(cswDescribeRecord, '//csw:DescribeRecordResponse/csw:SchemaComponent/xs:schema/xs:element/@name')),
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recordFields: nodeArray(evaluateXPath(cswDescribeRecord, '//xs:element[@name="Record"]/xs:complexType/xs:sequence/xs:element/@name')),
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summaryRecordFields: nodeArray(evaluateXPath(cswDescribeRecord, '//xs:element[@name="SummaryRecord"]/xs:complexType/xs:sequence/xs:element/@name')),
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briefRecordFields: briefRecordType
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briefRecordFields: briefRecordType.map(field=>{return {name: field}}),
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summaryRecordFields: summaryRecordType.map(field=>{return {name: field}}),
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recordFields
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};
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return {

‎parsexml.js

+36
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
1+
import fs from 'fs';
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// Define a variable to hold the appropriate DOMParser instance
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let domParserPromise;
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let xpath;
@@ -18,6 +19,41 @@ let xpath;
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}
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})();
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async function loadXSD(filename) {
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while (!domParserPromise) {
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await new Promise(resolve => setTimeout(resolve, 100));
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}
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const DOMParserInstance = await domParserPromise;
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const data = fs.readFileSync(filename, 'utf8');
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const doc = DOMParserInstance.parseFromString(data, 'text/xml');
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return doc;
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}
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async function loadAndParseXSDs() {
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try {
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//const dcmes = await loadXSD('rec-dcmes.xsd');
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const dcterms = await loadXSD('rec-dcterms.xsd');
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// Now you have the parsed XSDs as DOM documents.
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// You can start extracting field definitions from here.
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// For example, to get all 'element' nodes in the 'dcmes' document:
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const select = xpath.useNamespaces({ xs: 'http://www.w3.org/2001/XMLSchema' });
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const elements = select('//descendant-or-self::xs:element', dcterms);
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const fieldNames = elements.map((element) => {
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const name = element.getAttribute('name');
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const substitutionGroup = element.getAttribute('substitutionGroup');
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return { name: name !== ''? 'dct:'+ name : '', substitutionGroup };
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}).filter((element)=>element.name !== '');
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return fieldNames
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} catch (err) {
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console.error(err);
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return [];
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}
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}
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export const getDCMITerms = async () => {
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return loadAndParseXSDs();
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}
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// Function to parse XML with the pre-initialized DOMParser
2258
export const parseXml = async (xmlString) => {
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const DOMParserInstance = await domParserPromise;

‎rec-dcterms.xsd

+94
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,94 @@
1+
<?xml version="1.0" encoding="ISO-8859-1"?>
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<xs:schema id="dcmi-terms" targetNamespace="http://purl.org/dc/terms/"
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xmlns:xs="http://www.w3.org/2001/XMLSchema"
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xmlns:dct="http://purl.org/dc/terms/"
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xmlns:dc="http://purl.org/dc/elements/1.1/" elementFormDefault="qualified"
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attributeFormDefault="unqualified" version="2.0.2.2">
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<xs:annotation>
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<xs:documentation xml:lang="en"
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source="http://dublincore.org/documents/dcmi-terms/">This schema declares additional DCMI elements and element refinements
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in the "http://purl.org/dc/terms/" namespace.</xs:documentation>
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</xs:annotation>
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<xs:import namespace="http://purl.org/dc/elements/1.1/" schemaLocation="http://schemas.opengis.net/csw/2.0.2/rec-dcmes.xsd"/>
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<xs:element name="abstract" type="dc:SimpleLiteral"
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substitutionGroup="dc:description"/>
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<xs:element name="accessRights" type="dc:SimpleLiteral"
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substitutionGroup="dc:rights"/>
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<xs:element name="alternative" type="dc:SimpleLiteral"
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substitutionGroup="dc:title"/>
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<xs:element name="audience" type="dc:SimpleLiteral"
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substitutionGroup="dc:DC-element"/>
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<xs:element name="available" type="dc:SimpleLiteral"
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substitutionGroup="dc:date"/>
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<xs:element name="bibliographicCitation" type="dc:SimpleLiteral"
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substitutionGroup="dc:identifier"/>
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<xs:element name="conformsTo" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="created" type="dc:SimpleLiteral"
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substitutionGroup="dc:date"/>
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<xs:element name="dateAccepted" type="dc:SimpleLiteral"
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substitutionGroup="dc:date"/>
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<xs:element name="dateCopyrighted" type="dc:SimpleLiteral"
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substitutionGroup="dc:date"/>
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<xs:element name="dateSubmitted" type="dc:SimpleLiteral"
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substitutionGroup="dc:date"/>
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<xs:element name="educationLevel" type="dc:SimpleLiteral"
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substitutionGroup="dct:audience"/>
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<xs:element name="extent" type="dc:SimpleLiteral"
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substitutionGroup="dc:format"/>
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<xs:element name="hasFormat" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="hasPart" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="hasVersion" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="isFormatOf" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="isPartOf" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="isReferencedBy" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="isReplacedBy" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="isRequiredBy" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="issued" type="dc:SimpleLiteral" substitutionGroup="dc:date"/>
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<xs:element name="isVersionOf" type="dc:SimpleLiteral"
57+
substitutionGroup="dc:relation"/>
58+
<xs:element name="license" type="dc:SimpleLiteral"
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substitutionGroup="dc:rights"/>
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<xs:element name="mediator" type="dc:SimpleLiteral"
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substitutionGroup="dct:audience"/>
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<xs:element name="medium" type="dc:SimpleLiteral"
63+
substitutionGroup="dc:format"/>
64+
<xs:element name="modified" type="dc:SimpleLiteral"
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substitutionGroup="dc:date"/>
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<xs:element name="provenance" type="dc:SimpleLiteral"
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substitutionGroup="dc:DC-element"/>
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<xs:element name="references" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="replaces" type="dc:SimpleLiteral"
71+
substitutionGroup="dc:relation"/>
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<xs:element name="requires" type="dc:SimpleLiteral"
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substitutionGroup="dc:relation"/>
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<xs:element name="rightsHolder" type="dc:SimpleLiteral"
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substitutionGroup="dc:DC-element"/>
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<xs:element name="spatial" type="dc:SimpleLiteral"
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substitutionGroup="dc:coverage"/>
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<xs:element name="tableOfContents" type="dc:SimpleLiteral"
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substitutionGroup="dc:description"/>
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<xs:element name="temporal" type="dc:SimpleLiteral"
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substitutionGroup="dc:coverage"/>
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<xs:element name="valid" type="dc:SimpleLiteral" substitutionGroup="dc:date"/>
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<xs:group name="DCMI-terms">
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<xs:annotation>
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<xs:documentation xml:lang="en">This group is included as a convenience for schema authors who need
86+
to refer to the complete set of DCMI metadata terms.</xs:documentation>
87+
</xs:annotation>
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<xs:sequence>
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<xs:choice minOccurs="0" maxOccurs="unbounded">
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<xs:element ref="dc:DC-element"/>
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</xs:choice>
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</xs:sequence>
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</xs:group>
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</xs:schema>

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