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import { XmlParser } from './XmlParser';
import { Parser } from './Parser';
import { VtlParser } from './VtlParser';
import { FileExtension } from '../TemplateType';
import { JinjaXMLParser } from './JinjaXML';
import { VtlYMLParser } from './VtlYMLParser';
import { JinjaYMLParser } from './JinjaYML';
export class ParserFactory {
getParser(fileContent: string, fileExtension: string): Parser {
let parser: Parser;
console.log('file extension =' + fileExtension);
if (fileExtension === FileExtension.Velocity) {
if (this.isXML(fileContent)) {
parser = new XmlParser();
} else if (this.isJSON(fileContent)) {
parser = new VtlParser();
} else {
parser = new VtlYMLParser();
}
} else if (fileExtension === FileExtension.Jinja) {
if (this.isXML(fileContent)) {
parser = new JinjaXMLParser();
} else if (this.isJSON(fileContent)) {
// TODO: implement JSON parser
} else {
parser = new JinjaYMLParser();
}
} else if (fileExtension === FileExtension.XML) {
parser = new XmlParser();
}
return parser;
}
private isXML(fileContent: string): boolean {
return fileContent.includes('<?xml version="1.0" encoding="UTF-8"?>');
}
private isJSON(fileContent: string): boolean {
try {
JSON.parse(fileContent);
} catch (e) {
return false;
}
return true;
}
}
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