2 * Copyright (c) 2014 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.sal.rest.impl;
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.lang.annotation.Annotation;
15 import java.lang.reflect.Type;
16 import java.util.ArrayDeque;
17 import java.util.ArrayList;
18 import java.util.Collection;
19 import java.util.Collections;
20 import java.util.Deque;
21 import java.util.List;
22 import javax.ws.rs.Consumes;
23 import javax.ws.rs.WebApplicationException;
24 import javax.ws.rs.core.MediaType;
25 import javax.ws.rs.core.MultivaluedMap;
26 import javax.ws.rs.ext.MessageBodyReader;
27 import javax.ws.rs.ext.Provider;
28 import org.opendaylight.netconf.sal.rest.api.Draft02;
29 import org.opendaylight.netconf.sal.rest.api.RestconfService;
30 import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
31 import org.opendaylight.netconf.sal.restconf.impl.NormalizedNodeContext;
32 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
33 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
34 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
35 import org.opendaylight.restconf.utils.RestconfConstants;
36 import org.opendaylight.yangtools.util.xml.UntrustedXML;
37 import org.opendaylight.yangtools.yang.common.QName;
38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
39 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
40 import org.opendaylight.yangtools.yang.data.impl.codec.xml.XmlUtils;
41 import org.opendaylight.yangtools.yang.data.impl.schema.SchemaUtils;
42 import org.opendaylight.yangtools.yang.data.impl.schema.transform.dom.parser.DomToNormalizedNodeParserFactory;
43 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
44 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
45 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
46 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
47 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
48 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
49 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
50 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
51 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
52 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
53 import org.slf4j.Logger;
54 import org.slf4j.LoggerFactory;
55 import org.w3c.dom.Document;
56 import org.w3c.dom.Element;
57 import org.xml.sax.SAXException;
60 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.XML, Draft02.MediaTypes.OPERATION + RestconfService.XML,
61 MediaType.APPLICATION_XML, MediaType.TEXT_XML })
62 public class XmlNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
64 private final static Logger LOG = LoggerFactory.getLogger(XmlNormalizedNodeBodyReader.class);
67 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
68 final MediaType mediaType) {
73 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
74 final Annotation[] annotations, final MediaType mediaType,
75 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
76 WebApplicationException {
78 if (getUriInfo().getAbsolutePath().getPath().contains(RestconfConstants.DRAFT_PATTERN)) {
79 final org.opendaylight.restconf.jersey.providers.XmlNormalizedNodeBodyReader xmlReaderNewRest =
80 new org.opendaylight.restconf.jersey.providers.XmlNormalizedNodeBodyReader();
81 xmlReaderNewRest.injectParams(getUriInfo(), getRequest());
82 return xmlReaderNewRest.readFrom(type, genericType, annotations, mediaType, httpHeaders, entityStream);
84 return readFrom(entityStream);
86 } catch (final RestconfDocumentedException e){
88 } catch (final Exception e) {
89 LOG.debug("Error parsing xml input", e);
91 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
92 ErrorTag.MALFORMED_MESSAGE);
96 private NormalizedNodeContext readFrom(final InputStream entityStream) throws IOException, SAXException {
97 final InstanceIdentifierContext<?> path = getInstanceIdentifierContext();
99 if (entityStream.available() < 1) {
100 // represent empty nopayload input
101 return new NormalizedNodeContext(path, null);
104 final Document doc = UntrustedXML.newDocumentBuilder().parse(entityStream);
105 return parse(path, doc);
108 private NormalizedNodeContext parse(final InstanceIdentifierContext<?> pathContext,final Document doc) {
110 final List<Element> elements = Collections.singletonList(doc.getDocumentElement());
111 final SchemaNode schemaNodeContext = pathContext.getSchemaNode();
112 DataSchemaNode schemaNode;
113 boolean isRpc = false;
114 if (schemaNodeContext instanceof RpcDefinition) {
115 schemaNode = ((RpcDefinition) schemaNodeContext).getInput();
117 } else if (schemaNodeContext instanceof DataSchemaNode) {
118 schemaNode = (DataSchemaNode) schemaNodeContext;
120 throw new IllegalStateException("Unknown SchemaNode");
123 final String docRootElm = doc.getDocumentElement().getLocalName();
124 final String docRootNamespace = doc.getDocumentElement().getNamespaceURI();
125 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
126 InstanceIdentifierContext<? extends SchemaNode> outIIContext;
129 // FIXME the factory instance should be cached if the schema context is the same
130 final DomToNormalizedNodeParserFactory parserFactory =
131 DomToNormalizedNodeParserFactory.getInstance(XmlUtils.DEFAULT_XML_CODEC_PROVIDER, pathContext.getSchemaContext());
133 if (isPost() && !isRpc) {
134 final Deque<Object> foundSchemaNodes = findPathToSchemaNodeByName(schemaNode, docRootElm, docRootNamespace);
135 if (foundSchemaNodes.isEmpty()) {
136 throw new IllegalStateException(String.format("Child \"%s\" was not found in parent schema node \"%s\"",
137 docRootElm, schemaNode.getQName()));
139 while (!foundSchemaNodes.isEmpty()) {
140 final Object child = foundSchemaNodes.pop();
141 if (child instanceof AugmentationSchema) {
142 final AugmentationSchema augmentSchemaNode = (AugmentationSchema) child;
143 iiToDataList.add(SchemaUtils.getNodeIdentifierForAugmentation(augmentSchemaNode));
144 } else if (child instanceof DataSchemaNode) {
145 schemaNode = (DataSchemaNode) child;
146 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(schemaNode.getQName()));
151 final QName scQName = schemaNode.getQName();
152 Preconditions.checkState(
153 docRootElm.equals(scQName.getLocalName())
154 && docRootNamespace.equals(scQName.getNamespace().toASCIIString()),
155 String.format("Not correct message root element \"%s\", should be \"%s\"",
156 docRootElm, scQName));
159 NormalizedNode<?, ?> parsed = null;
161 if (schemaNode instanceof ContainerSchemaNode) {
162 parsed = parserFactory.getContainerNodeParser().parse(Collections.singletonList(doc.getDocumentElement()), (ContainerSchemaNode) schemaNode);
163 } else if(schemaNode instanceof ListSchemaNode) {
164 final ListSchemaNode casted = (ListSchemaNode) schemaNode;
165 parsed = parserFactory.getMapEntryNodeParser().parse(elements, casted);
167 iiToDataList.add(parsed.getIdentifier());
170 // FIXME : add another DataSchemaNode extensions e.g. LeafSchemaNode
172 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
173 pathContext.getInstanceIdentifier().getPathArguments(), iiToDataList));
175 outIIContext = new InstanceIdentifierContext<>(fullIIToData, pathContext.getSchemaNode(), pathContext.getMountPoint(),
176 pathContext.getSchemaContext());
178 return new NormalizedNodeContext(outIIContext, parsed);
181 private static Deque<Object> findPathToSchemaNodeByName(final DataSchemaNode schemaNode, final String elementName,
182 final String namespace) {
183 final Deque<Object> result = new ArrayDeque<>();
184 final ArrayList<ChoiceSchemaNode> choiceSchemaNodes = new ArrayList<>();
185 final Collection<DataSchemaNode> children = ((DataNodeContainer) schemaNode).getChildNodes();
186 for (final DataSchemaNode child : children) {
187 if (child instanceof ChoiceSchemaNode) {
188 choiceSchemaNodes.add((ChoiceSchemaNode) child);
189 } else if (child.getQName().getLocalName().equalsIgnoreCase(elementName)
190 && child.getQName().getNamespace().toString().equalsIgnoreCase(namespace)) {
191 // add child to result
195 if (child.isAugmenting()) {
196 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, child);
197 if (augment != null) {
198 result.push(augment);
207 for (final ChoiceSchemaNode choiceNode : choiceSchemaNodes) {
208 for (final ChoiceCaseNode caseNode : choiceNode.getCases()) {
209 final Deque<Object> resultFromRecursion = findPathToSchemaNodeByName(caseNode, elementName, namespace);
210 if (!resultFromRecursion.isEmpty()) {
211 resultFromRecursion.push(choiceNode);
212 if (choiceNode.isAugmenting()) {
213 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, choiceNode);
214 if (augment != null) {
215 resultFromRecursion.push(augment);
218 return resultFromRecursion;
225 private static AugmentationSchema findCorrespondingAugment(final DataSchemaNode parent, final DataSchemaNode child) {
226 if ((parent instanceof AugmentationTarget) && !(parent instanceof ChoiceSchemaNode)) {
227 for (final AugmentationSchema augmentation : ((AugmentationTarget) parent).getAvailableAugmentations()) {
228 final DataSchemaNode childInAugmentation = augmentation.getDataChildByName(child.getQName());
229 if (childInAugmentation != null) {