2 * Copyright (c) 2019 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.yangtools.yang.data.codec.xml;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.annotations.VisibleForTesting;
13 import com.google.common.base.MoreObjects.ToStringHelper;
14 import java.io.IOException;
15 import java.net.URISyntaxException;
16 import java.util.List;
17 import javax.xml.stream.XMLStreamException;
18 import javax.xml.stream.XMLStreamReader;
19 import javax.xml.transform.dom.DOMSource;
20 import org.eclipse.jdt.annotation.NonNullByDefault;
21 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
22 import org.opendaylight.yangtools.yang.data.impl.schema.AbstractNormalizableAnydata;
23 import org.opendaylight.yangtools.yang.model.api.EffectiveStatementInference;
24 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
25 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
26 import org.xml.sax.SAXException;
29 * Internal parser representation of a parsed-out chunk of XML. This format is completely internal to the parser
30 * and can be changed at any time. Current implementation uses W3C DOM tree as the backing implementations, but others
31 * are possible as well.
34 * Note that the DOMSource is expected to contain a top-level synthetic element, which acts as holder of namespace
35 * declarations coming from parsing context but is otherwise ignored. Parser-side of things is expected to reuse the
36 * {@code anydata} element name for this purpose. Writer-side of things is expected to skip this element except for
37 * its namespace declarations.
39 * @author Robert Varga
42 final class DOMSourceAnydata extends AbstractNormalizableAnydata {
43 private final DOMSource source;
45 DOMSourceAnydata(final DOMSource source) {
46 this.source = requireNonNull(source);
49 XMLStreamReader toStreamReader() throws XMLStreamException {
50 return new DOMSourceXMLStreamReader(source);
54 protected void writeTo(final NormalizedNodeStreamWriter streamWriter, final EffectiveStatementInference inference)
56 final List<? extends EffectiveStatement<?, ?>> path = inference.statementPath();
58 throw new IOException("Cannot handle empty inference " + inference);
60 final EffectiveStatement<?, ?> stmt = path.get(path.size() - 1);
61 if (!(stmt instanceof SchemaNode)) {
62 throw new IOException("Unhandled statement " + stmt);
65 final XmlParserStream xmlParser;
67 xmlParser = XmlParserStream.create(streamWriter, inference.getEffectiveModelContext(), (SchemaNode) stmt);
68 } catch (IllegalArgumentException e) {
69 throw new IOException("Failed to instantiate XML parser", e);
73 final XMLStreamReader reader = toStreamReader();
76 xmlParser.parse(reader).flush();
77 } catch (XMLStreamException | URISyntaxException | SAXException e) {
78 throw new IOException("Failed to parse payload", e);
83 protected ToStringHelper addToStringAttributes(final ToStringHelper helper) {
84 return helper.add("source", source);
88 DOMSource getSource() {