2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.restconf.common.formatters;
10 import static org.opendaylight.restconf.common.formatters.NotificationFormatter.XML_OUTPUT_FACTORY;
11 import static org.opendaylight.restconf.common.formatters.XMLNotificationFormatter.DATA_CHANGED_NAMESPACE;
12 import static org.opendaylight.restconf.common.formatters.XMLNotificationFormatter.DATA_CHANGED_NOTIFICATION_ELEMENT;
13 import static org.opendaylight.restconf.common.formatters.XMLNotificationFormatter.NOTIFICATION_ELEMENT;
14 import static org.opendaylight.restconf.common.formatters.XMLNotificationFormatter.NOTIFICATION_NAMESPACE;
16 import java.io.IOException;
17 import java.io.StringWriter;
18 import java.time.Instant;
19 import java.util.Collection;
20 import javax.xml.stream.XMLStreamException;
21 import javax.xml.stream.XMLStreamWriter;
22 import javax.xml.xpath.XPathExpressionException;
23 import org.opendaylight.restconf.common.serializer.XmlDataTreeCandidateSerializer;
24 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
25 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
27 public final class XMLDataTreeCandidateFormatter extends DataTreeCandidateFormatter {
28 private static final XMLDataTreeCandidateFormatter INSTANCE = new XMLDataTreeCandidateFormatter();
30 public static final DataTreeCandidateFormatterFactory FACTORY =
31 new DataTreeCandidateFormatterFactory() {
33 public XMLDataTreeCandidateFormatter getFormatter(final String xpathFilter)
34 throws XPathExpressionException {
35 return new XMLDataTreeCandidateFormatter(xpathFilter);
39 public XMLDataTreeCandidateFormatter getFormatter() {
44 private XMLDataTreeCandidateFormatter() {
47 private XMLDataTreeCandidateFormatter(final String xpathFilter) throws XPathExpressionException {
52 String createText(final EffectiveModelContext schemaContext, final Collection<DataTreeCandidate> input,
53 final Instant now, final boolean leafNodesOnly, final boolean skipData) throws Exception {
54 StringWriter writer = new StringWriter();
56 final XMLStreamWriter xmlStreamWriter;
58 xmlStreamWriter = XML_OUTPUT_FACTORY.createXMLStreamWriter(writer);
59 xmlStreamWriter.setDefaultNamespace(NOTIFICATION_NAMESPACE);
61 xmlStreamWriter.writeStartElement(NOTIFICATION_NAMESPACE, NOTIFICATION_ELEMENT);
62 xmlStreamWriter.writeDefaultNamespace(NOTIFICATION_NAMESPACE);
64 xmlStreamWriter.writeStartElement("eventTime");
65 xmlStreamWriter.writeCharacters(toRFC3339(now));
66 xmlStreamWriter.writeEndElement();
68 xmlStreamWriter.setDefaultNamespace(DATA_CHANGED_NAMESPACE);
69 xmlStreamWriter.writeStartElement(DATA_CHANGED_NAMESPACE, DATA_CHANGED_NOTIFICATION_ELEMENT);
71 final XmlDataTreeCandidateSerializer serializer =
72 new XmlDataTreeCandidateSerializer(schemaContext, xmlStreamWriter);
74 for (final DataTreeCandidate candidate : input) {
75 serializer.serialize(candidate, leafNodesOnly, skipData);
78 // data-changed-notification
79 xmlStreamWriter.writeEndElement();
82 xmlStreamWriter.writeEndElement();
83 xmlStreamWriter.close();
84 } catch (XMLStreamException e) {
85 throw new IOException("Failed to write notification content", e);
89 return writer.toString();