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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| import { NamedNode } from '@rdfjs/types' | ||
| import { xsd } from '@tpluscode/rdf-ns-builders' | ||
| import { validators } from 'rdf-validate-datatype' | ||
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| type Validator = (value: string) => boolean | ||
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| interface Datatype { | ||
| check: Validator | ||
| name: NamedNode | ||
| } | ||
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| export class DatatypeChecker { | ||
| private datatypes: Datatype[] = [] | ||
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| constructor() { | ||
| this.add(xsd.integer) | ||
| this.add(xsd.decimal) | ||
| this.add(xsd.date) | ||
| } | ||
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| private add(name: NamedNode) { | ||
| const check = validators.find(name) | ||
| if (check) { | ||
| this.datatypes.push({ check, name }) | ||
| } | ||
| } | ||
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| public determineDatatype(values: string[]): NamedNode { | ||
| let i = 0 | ||
| let current = this.datatypes[i] | ||
| for (const value of values) { | ||
| while (!current.check(value)) { | ||
| if (++i === this.datatypes.length) { | ||
| return xsd.string | ||
| } | ||
| current = this.datatypes[i] | ||
| } | ||
| } | ||
| return current.name | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,79 +1,16 @@ | ||
| import { describe, it } from 'mocha' | ||
| import { expect } from 'chai' | ||
| import { validators } from 'rdf-validate-datatype' | ||
| import { xsd } from '@tpluscode/rdf-ns-builders' | ||
| import { NamedNode } from '@rdfjs/types' | ||
| import { DatatypeChecker } from '../DatatypeChecker' | ||
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| type Validator = (value: string) => boolean | ||
| const datatypeChecker = new DatatypeChecker() | ||
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| const datatypes: Array<{ check: Validator; name: NamedNode }> = [] | ||
|
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| const add = (name: NamedNode) => { | ||
| const check = validators.find(name) | ||
| if (check) { | ||
| datatypes.push({ check, name }) | ||
| } | ||
| } | ||
|
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| add(xsd.integer) | ||
| add(xsd.decimal) | ||
| add(xsd.date) | ||
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| const datatype = (values: string[]) => { | ||
| let i = 0 | ||
| let current = datatypes[i] | ||
| for (const value of values) { | ||
| while (!current.check(value)) { | ||
| if (++i === datatypes.length) { | ||
| return xsd.string | ||
| } | ||
| current = datatypes[i] | ||
| } | ||
| } | ||
| return current.name | ||
| } | ||
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| describe.only('@cube-creator/model/CsvColumn', () => { | ||
| describe('columnDatatype', () => { | ||
| it('recognize integers', () => { | ||
| const isInteger = validators.find(xsd.integer) | ||
| expect(isInteger).to.be.not.null | ||
| if (isInteger) { | ||
| expect(isInteger('42')).to.be.true | ||
| expect(isInteger('-42')).to.be.true | ||
| expect(isInteger('foo')).to.be.false | ||
| expect(isInteger('42.0')).to.be.false | ||
| expect(isInteger('2021-01-01')).to.be.false | ||
| } | ||
| }) | ||
| it('recognize decimals', () => { | ||
| const isDecimal = validators.find(xsd.decimal) | ||
| expect(isDecimal).to.be.not.null | ||
| if (isDecimal) { | ||
| expect(isDecimal('42')).to.be.true | ||
| expect(isDecimal('-42')).to.be.true | ||
| expect(isDecimal('foo')).to.be.false | ||
| expect(isDecimal('42.0')).to.be.true | ||
| expect(isDecimal('2021-01-01')).to.be.false | ||
| } | ||
| }) | ||
| it('recognize dates', () => { | ||
| const isDate = validators.find(xsd.date) | ||
| expect(isDate).to.be.not.null | ||
| if (isDate) { | ||
| expect(isDate('2021-01-01')).to.be.true | ||
| expect(isDate('2021-01-01T00:00:00Z')).to.be.false | ||
| expect(isDate('foo')).to.be.false | ||
| } | ||
| }) | ||
| }) | ||
| describe('datatype', () => { | ||
| it('recognize datatype', () => { | ||
| expect(datatype(['42']).equals(xsd.integer)).to.be.true | ||
| expect(datatype(['42', '42']).equals(xsd.integer)).to.be.true | ||
| expect(datatype(['42', '42.1']).equals(xsd.decimal)).to.be.true | ||
| expect(datatype(['42', 'foo']).equals(xsd.string)).to.be.true | ||
| expect(datatype(['2021-01-01', '2021-01-01']).equals(xsd.date)).to.be.true | ||
| }) | ||
| describe('@cube-creator/model/DatatypeChecker', () => { | ||
| it('recognize datatype', () => { | ||
| expect(datatypeChecker.determineDatatype(['42']).equals(xsd.integer)).to.be.true | ||
| expect(datatypeChecker.determineDatatype(['42', '42']).equals(xsd.integer)).to.be.true | ||
| expect(datatypeChecker.determineDatatype(['42', '42.1']).equals(xsd.decimal)).to.be.true | ||
| expect(datatypeChecker.determineDatatype(['42', 'foo']).equals(xsd.string)).to.be.true | ||
| expect(datatypeChecker.determineDatatype(['2021-01-01', '2021-01-01']).equals(xsd.date)).to.be.true | ||
| }) | ||
| }) |
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