2 * Copyright (c) 2017 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.model.export;
10 import static java.util.Objects.requireNonNull;
12 import java.io.IOException;
13 import java.io.InputStream;
14 import java.io.StringWriter;
15 import java.util.Optional;
16 import javax.xml.transform.OutputKeys;
17 import javax.xml.transform.Transformer;
18 import javax.xml.transform.TransformerException;
19 import javax.xml.transform.TransformerFactory;
20 import javax.xml.transform.TransformerFactoryConfigurationError;
21 import javax.xml.transform.dom.DOMSource;
22 import javax.xml.transform.stream.StreamResult;
23 import org.opendaylight.yangtools.util.xml.UntrustedXML;
24 import org.opendaylight.yangtools.yang.common.Revision;
25 import org.opendaylight.yangtools.yang.common.YangConstants;
26 import org.opendaylight.yangtools.yang.model.api.Module;
27 import org.w3c.dom.Document;
28 import org.w3c.dom.Node;
29 import org.xml.sax.SAXException;
31 public final class YinExportTestUtils {
32 private YinExportTestUtils() {
33 throw new UnsupportedOperationException("Utility class");
36 public static Document loadDocument(final String prefix, final Module module) throws IOException, SAXException {
37 final Optional<Revision> rev = module.getRevision();
38 final String fileName = !rev.isPresent() ? module.getName() : module.getName() + '@' + rev.get().toString();
39 return loadDocument(prefix + '/' + fileName + YangConstants.RFC6020_YIN_FILE_EXTENSION);
42 public static Document loadDocument(final String xmlPath) throws IOException, SAXException {
43 final InputStream resourceAsStream = SchemaContextEmitterTest.class.getResourceAsStream(xmlPath);
44 return requireNonNull(readXmlToDocument(resourceAsStream));
47 static Document readXmlToDocument(final InputStream xmlContent) throws IOException, SAXException {
48 final Document doc = UntrustedXML.newDocumentBuilder().parse(xmlContent);
49 doc.getDocumentElement().normalize();
53 public static String toString(final Node xml) {
55 final Transformer transformer = TransformerFactory.newInstance().newTransformer();
56 transformer.setOutputProperty(OutputKeys.INDENT, "yes");
57 transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
59 final StreamResult result = new StreamResult(new StringWriter());
60 final DOMSource source = new DOMSource(xml);
61 transformer.transform(source, result);
63 return result.getWriter().toString();
64 } catch (IllegalArgumentException | TransformerFactoryConfigurationError | TransformerException e) {
65 throw new RuntimeException("Unable to serialize xml element " + xml, e);