2 * Copyright (c) 2016 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.restconf.jersey.providers;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.Iterables;
12 import java.io.IOException;
13 import java.io.InputStream;
14 import java.util.ArrayDeque;
15 import java.util.ArrayList;
16 import java.util.Collection;
17 import java.util.Collections;
18 import java.util.Deque;
19 import java.util.List;
20 import javax.ws.rs.Consumes;
21 import javax.ws.rs.WebApplicationException;
22 import javax.ws.rs.core.MediaType;
23 import javax.ws.rs.ext.Provider;
24 import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
25 import org.opendaylight.netconf.sal.restconf.impl.NormalizedNodeContext;
26 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
27 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
28 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
29 import org.opendaylight.restconf.Rfc8040;
30 import org.opendaylight.restconf.utils.RestconfConstants;
31 import org.opendaylight.yangtools.util.xml.UntrustedXML;
32 import org.opendaylight.yangtools.yang.common.QName;
33 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
34 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
35 import org.opendaylight.yangtools.yang.data.impl.codec.xml.XmlUtils;
36 import org.opendaylight.yangtools.yang.data.impl.schema.SchemaUtils;
37 import org.opendaylight.yangtools.yang.data.impl.schema.transform.dom.parser.DomToNormalizedNodeParserFactory;
38 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
39 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
40 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
41 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
42 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
43 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
44 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
45 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
46 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
47 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
48 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
49 import org.slf4j.Logger;
50 import org.slf4j.LoggerFactory;
51 import org.w3c.dom.Document;
52 import org.w3c.dom.Element;
55 @Consumes({ Rfc8040.MediaTypes.DATA + RestconfConstants.XML, MediaType.APPLICATION_XML, MediaType.TEXT_XML })
56 public class XmlNormalizedNodeBodyReader extends AbstractNormalizedNodeBodyReader {
57 private static final Logger LOG = LoggerFactory.getLogger(XmlNormalizedNodeBodyReader.class);
59 @SuppressWarnings("checkstyle:IllegalCatch")
61 protected NormalizedNodeContext readBody(final InstanceIdentifierContext<?> path, final InputStream entityStream)
62 throws IOException, WebApplicationException {
64 final Document doc = UntrustedXML.newDocumentBuilder().parse(entityStream);
65 return parse(path,doc);
66 } catch (final RestconfDocumentedException e) {
68 } catch (final Exception e) {
69 LOG.debug("Error parsing xml input", e);
71 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
72 ErrorTag.MALFORMED_MESSAGE, e);
76 private NormalizedNodeContext parse(final InstanceIdentifierContext<?> pathContext,final Document doc) {
78 final List<Element> elements = Collections.singletonList(doc.getDocumentElement());
79 final SchemaNode schemaNodeContext = pathContext.getSchemaNode();
80 DataSchemaNode schemaNode;
81 boolean isRpc = false;
82 if (schemaNodeContext instanceof RpcDefinition) {
83 schemaNode = ((RpcDefinition) schemaNodeContext).getInput();
85 } else if (schemaNodeContext instanceof DataSchemaNode) {
86 schemaNode = (DataSchemaNode) schemaNodeContext;
88 throw new IllegalStateException("Unknown SchemaNode");
91 final String docRootElm = doc.getDocumentElement().getLocalName();
92 final String docRootNamespace = doc.getDocumentElement().getNamespaceURI();
93 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
94 InstanceIdentifierContext<? extends SchemaNode> outIIContext;
96 final DomToNormalizedNodeParserFactory parserFactory =
97 DomToNormalizedNodeParserFactory.getInstance(XmlUtils.DEFAULT_XML_CODEC_PROVIDER,
98 pathContext.getSchemaContext());
100 if (isPost() && !isRpc) {
101 final Deque<Object> foundSchemaNodes = findPathToSchemaNodeByName(schemaNode, docRootElm, docRootNamespace);
102 if (foundSchemaNodes.isEmpty()) {
103 throw new IllegalStateException(String.format("Child \"%s\" was not found in parent schema node \"%s\"",
104 docRootElm, schemaNode.getQName()));
106 while (!foundSchemaNodes.isEmpty()) {
107 final Object child = foundSchemaNodes.pop();
108 if (child instanceof AugmentationSchema) {
109 final AugmentationSchema augmentSchemaNode = (AugmentationSchema) child;
110 iiToDataList.add(SchemaUtils.getNodeIdentifierForAugmentation(augmentSchemaNode));
111 } else if (child instanceof DataSchemaNode) {
112 schemaNode = (DataSchemaNode) child;
113 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(schemaNode.getQName()));
118 final QName scQName = schemaNode.getQName();
119 Preconditions.checkState(
120 docRootElm.equals(scQName.getLocalName())
121 && docRootNamespace.equals(scQName.getNamespace().toASCIIString()),
122 String.format("Not correct message root element \"%s\", should be \"%s\"",
123 docRootElm, scQName));
126 final NormalizedNode<?, ?> parsed;
127 if (schemaNode instanceof ContainerSchemaNode) {
128 parsed = parserFactory.getContainerNodeParser().parse(
129 Collections.singletonList(doc.getDocumentElement()), (ContainerSchemaNode) schemaNode);
130 } else if (schemaNode instanceof ListSchemaNode) {
131 parsed = parserFactory.getMapEntryNodeParser().parse(elements, (ListSchemaNode) schemaNode);
133 iiToDataList.add(parsed.getIdentifier());
135 } else if (schemaNode instanceof LeafSchemaNode) {
136 parsed = parserFactory.getLeafNodeParser().parse(elements, (LeafSchemaNode) schemaNode);
138 LOG.warn("Unknown schema node extension {} was not parsed", schemaNode.getClass());
142 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
143 pathContext.getInstanceIdentifier().getPathArguments(), iiToDataList));
145 outIIContext = new InstanceIdentifierContext<>(fullIIToData, pathContext.getSchemaNode(),
146 pathContext.getMountPoint(),
147 pathContext.getSchemaContext());
149 return new NormalizedNodeContext(outIIContext, parsed);
152 private static Deque<Object> findPathToSchemaNodeByName(final DataSchemaNode schemaNode, final String elementName,
153 final String namespace) {
154 final Deque<Object> result = new ArrayDeque<>();
155 final ArrayList<ChoiceSchemaNode> choiceSchemaNodes = new ArrayList<>();
156 final Collection<DataSchemaNode> children = ((DataNodeContainer) schemaNode).getChildNodes();
157 for (final DataSchemaNode child : children) {
158 if (child instanceof ChoiceSchemaNode) {
159 choiceSchemaNodes.add((ChoiceSchemaNode) child);
160 } else if (child.getQName().getLocalName().equalsIgnoreCase(elementName)
161 && child.getQName().getNamespace().toString().equalsIgnoreCase(namespace)) {
162 // add child to result
166 if (child.isAugmenting()) {
167 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, child);
168 if (augment != null) {
169 result.push(augment);
178 for (final ChoiceSchemaNode choiceNode : choiceSchemaNodes) {
179 for (final ChoiceCaseNode caseNode : choiceNode.getCases()) {
180 final Deque<Object> resultFromRecursion = findPathToSchemaNodeByName(caseNode, elementName, namespace);
181 if (!resultFromRecursion.isEmpty()) {
182 resultFromRecursion.push(choiceNode);
183 if (choiceNode.isAugmenting()) {
184 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, choiceNode);
185 if (augment != null) {
186 resultFromRecursion.push(augment);
189 return resultFromRecursion;
196 private static AugmentationSchema findCorrespondingAugment(final DataSchemaNode parent,
197 final DataSchemaNode child) {
198 if (parent instanceof AugmentationTarget && !(parent instanceof ChoiceSchemaNode)) {
199 for (final AugmentationSchema augmentation : ((AugmentationTarget) parent).getAvailableAugmentations()) {
200 final DataSchemaNode childInAugmentation = augmentation.getDataChildByName(child.getQName());
201 if (childInAugmentation != null) {