@innotrade/enapso-sparql-tools/deprecated/schema/getClassSchemaMeta.js

ENAPSO Platform Independent SPARQL Tools

// Innotrade Enapso SPARQL Toolbox
// (C) Copyright 2019 Innotrade GmbH, Herzogenrath, NRW, Germany
// Authors: Alexander Schulze, Osvaldo Aguilar Lauzurique

const Joi = require('joi');
const validURL = require('../utils/validate-url');
const regexValidators = require('../utils/regex-validators');

const inputSchema = {
    classIRI: Joi.string().regex(regexValidators.IRI).required(),
    namedGraph: Joi.string().min(1),
    mappingProperty: Joi.string().min(1)
};

/**
 *
 * @param {string} classIRI - target class IRI
 * @param {string} namedGraph - namedGraph where target class is located
 * @param {string} mappingProperty - optional base mapping property
 */
function getClassSchemaMeta(classIRI, namedGraph, mappingProperty) {
    const valid = Joi.validate(
        { classIRI, namedGraph, mappingProperty },
        inputSchema
    );
    if (valid.error) {
        throw new Error(valid.error.details[0].message);
    }

    if (validURL(classIRI)) {
        classIRI = `<${classIRI}>`;
    }

    let triples = `   
bind(${classIRI} as ?node ) .

?node  (rdfs:subClassOf|(owl:intersectionOf/rdf:rest*/rdf:first))* ?restriction .
filter (isBlank(?restriction))

?restriction  owl:onProperty ?edge . 
?restriction  (owl:onClass|owl:onDataRange|owl:someValuesFrom) ?filler .

OPTIONAL { ?restriction owl:someValuesFrom ?some } .
OPTIONAL { ?restriction owl:minQualifiedCardinality ?min } .
OPTIONAL { ?restriction owl:qualifiedCardinality ?exactly } .
OPTIONAL { ?restriction owl:maxQualifiedCardinality ?max } . 

OPTIONAL {
	?axiom owl:annotatedSource ?node .
	?axiom a owl:Axiom .
	?axiom owl:annotatedTarget ?restrictionAnnotation .

	?restrictionAnnotation owl:onProperty ?edge . 
	?restrictionAnnotation (owl:onClass|owl:onDataRange|owl:someValuesFrom) ?filler .

	OPTIONAL { ?restrictionAnnotation owl:someValuesFrom ?some } .
	OPTIONAL { ?restrictionAnnotation owl:minQualifiedCardinality ?min } .
	OPTIONAL { ?restrictionAnnotation owl:qualifiedCardinality ?exactly } .
	OPTIONAL { ?restrictionAnnotation owl:maxQualifiedCardinality ?max } .  

	${mappingProperty ? `?axiom ${mappingProperty} ?mapping .` : ``} 
} 

BIND( IF( ?some != "" , concat("some_", str(?some) ), "") as ?restrictionType ) .
BIND( IF( ?exactly > 0 , concat("exactly_",str(?exactly)), "") as ?restrictionType ) .
BIND( IF( ?min > 0 , concat("min_",str(?min)), "") as ?restrictionType ) .
BIND( IF( ?max > 0 , concat("max_",str(?max)), "") as ?restrictionType ) . 
	`;
    if (namedGraph !== null && namedGraph !== undefined && namedGraph !== '') {
        triples =
            `
          GRAPH <${namedGraph}> {
          ` +
            triples +
            ` 
        }`;
    }

    let headers = `?node ?edge ?filler ?mapping ?min ?max ?some ?exactly`;
    // Return query to ask for the given class schema
    return { headers, triples };
}

module.exports = exports = getClassSchemaMeta;