2 * Copyright (c) 2018 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.netconf.mdsal.connector.ops;
10 import com.google.common.collect.ImmutableMap;
11 import java.io.IOException;
12 import java.net.URISyntaxException;
13 import java.util.Iterator;
14 import javax.xml.stream.XMLStreamException;
15 import javax.xml.transform.dom.DOMSource;
16 import org.eclipse.jdt.annotation.NonNull;
17 import org.opendaylight.netconf.api.DocumentedException;
18 import org.opendaylight.netconf.api.NetconfDocumentedException;
19 import org.opendaylight.netconf.api.xml.XmlElement;
20 import org.opendaylight.netconf.mdsal.connector.CurrentSchemaContext;
21 import org.opendaylight.yangtools.yang.common.ErrorSeverity;
22 import org.opendaylight.yangtools.yang.common.ErrorTag;
23 import org.opendaylight.yangtools.yang.common.ErrorType;
24 import org.opendaylight.yangtools.yang.common.QName;
25 import org.opendaylight.yangtools.yang.common.XMLNamespace;
26 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
27 import org.opendaylight.yangtools.yang.data.codec.xml.XmlParserStream;
28 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
29 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
30 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
31 import org.opendaylight.yangtools.yang.model.api.Module;
32 import org.opendaylight.yangtools.yang.model.api.SchemaTreeInference;
33 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
36 import org.w3c.dom.Element;
37 import org.w3c.dom.NodeList;
38 import org.xml.sax.SAXException;
40 abstract class AbstractEdit extends AbstractConfigOperation {
41 private static final Logger LOG = LoggerFactory.getLogger(AbstractEdit.class);
42 private static final String TARGET_KEY = "target";
44 final CurrentSchemaContext schemaContext;
46 AbstractEdit(final String netconfSessionIdForReporting, final CurrentSchemaContext schemaContext) {
47 super(netconfSessionIdForReporting);
48 this.schemaContext = schemaContext;
51 static final void parseIntoNormalizedNode(final SchemaTreeInference inference, final XmlElement element,
52 final NormalizedNodeStreamWriter writer) throws DocumentedException {
53 final var path = inference.statementPath();
54 final var schemaNode = path.get(path.size() - 1);
55 if (!(schemaNode instanceof ContainerSchemaNode) && !(schemaNode instanceof ListSchemaNode)) {
56 // This should never happen since any edit operation on any other node type
57 // should not be possible nor makes sense
58 LOG.debug("DataNode from module is not ContainerSchemaNode nor ListSchemaNode, aborting..");
59 throw new UnsupportedOperationException("implement exception if parse fails");
62 final XmlParserStream xmlParser = XmlParserStream.create(writer, inference);
64 xmlParser.traverse(new DOMSource(element.getDomElement()));
65 } catch (final XMLStreamException | URISyntaxException | IOException | SAXException ex) {
66 throw new NetconfDocumentedException("Error parsing input: " + ex.getMessage(), ex,
67 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, ErrorSeverity.ERROR);
71 final SchemaTreeInference getSchemaNodeFromNamespace(final String namespace, final XmlElement element)
72 throws DocumentedException {
73 final XMLNamespace ns;
75 ns = XMLNamespace.of(namespace);
76 } catch (final IllegalArgumentException e) {
77 throw new NetconfDocumentedException("Unable to create URI for namespace : " + namespace, e,
78 ErrorType.APPLICATION, ErrorTag.INVALID_VALUE, ErrorSeverity.ERROR);
81 // Returns module with newest revision since findModuleByNamespace returns a set of modules and we only
82 // need the newest one
83 final EffectiveModelContext ctx = schemaContext.getCurrentContext();
84 final Iterator<? extends @NonNull Module> it = ctx.findModules(ns).iterator();
86 // No module is present with this namespace
87 throw new NetconfDocumentedException("Unable to find module by namespace: " + namespace,
88 ErrorType.APPLICATION, ErrorTag.UNKNOWN_NAMESPACE, ErrorSeverity.ERROR);
91 final Module module = it.next();
92 final SchemaInferenceStack stack = SchemaInferenceStack.of(ctx);
93 final String elementName = element.getName();
95 // FIXME: This is a bit suspect. The element is formed using XML encoding, hence it corresponds to
96 // enterDataTree(). But then we use the result of this method to create a NormalizedNode tree,
97 // which contains ChoiceNode. This needs to be tested with something like to following:
108 stack.enterSchemaTree(QName.create(module.getQNameModule(), elementName));
109 } catch (IllegalArgumentException e) {
110 throw new DocumentedException(
111 "Unable to find node " + elementName + " with namespace: " + namespace + " in module: " + module, e,
112 ErrorType.APPLICATION, ErrorTag.UNKNOWN_NAMESPACE, ErrorSeverity.ERROR);
115 return stack.toSchemaTreeInference();
118 static final XmlElement extractTargetElement(final XmlElement operationElement, final String operationName)
119 throws DocumentedException {
120 final NodeList elementsByTagName = getElementsByTagName(operationElement, TARGET_KEY);
121 // Direct lookup instead of using XmlElement class due to performance
122 if (elementsByTagName.getLength() == 0) {
123 throw new DocumentedException("Missing target element", ErrorType.PROTOCOL, ErrorTag.MISSING_ATTRIBUTE,
124 ErrorSeverity.ERROR, ImmutableMap.of("bad-attribute", TARGET_KEY, "bad-element", operationName));
125 } else if (elementsByTagName.getLength() > 1) {
126 throw new DocumentedException("Multiple target elements", ErrorType.RPC, ErrorTag.UNKNOWN_ATTRIBUTE,
127 ErrorSeverity.ERROR);
129 return XmlElement.fromDomElement((Element) elementsByTagName.item(0)).getOnlyChildElement();