Method writeDocuments

tools/src/main/java/be/gov/data/tools/EDP.java:869–894

Write document (license, standard...) info @param w XML writer @param con RDF triple store connection @throws XMLStreamException

(XMLStreamWriter w, RepositoryConnection con, IRI pred, String classWrap)

	 * @throws XMLStreamException
	 */
	private static void writeDocuments(XMLStreamWriter w, RepositoryConnection con, IRI pred, String classWrap) throws XMLStreamException {

		Set<IRI> documents;
	
		try (RepositoryResult<Statement> res = con.getStatements(null, pred, null)) {
			documents = res.stream()
							.map(Statement::getObject)
							.filter(IRI.class::isInstance)
							.map(IRI.class::cast)
							.filter(i -> i.toString().startsWith("http"))
							.filter(i -> con.hasStatement(null, null, i, false))
							.collect(Collectors.toSet());		
		}

		if (documents == null || documents.isEmpty()) {
			return;
		}

		for (IRI document: documents) {
			w.writeStartElement(classWrap);
			w.writeAttribute("rdf:about", document.toString());
			writeGenericInfo(w, con, document);
			w.writeEndElement();
		}
		LOG.info("Wrote {} {} documents", documents.size(), classWrap);
	}

	/**
	 * Write location info