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.collect.Iterables;
11 import java.io.IOException;
12 import java.io.InputStream;
13 import java.lang.annotation.Annotation;
14 import java.lang.reflect.Type;
15 import java.util.ArrayDeque;
16 import java.util.ArrayList;
17 import java.util.Collection;
18 import java.util.Collections;
19 import java.util.Deque;
20 import java.util.List;
21 import javax.ws.rs.Consumes;
22 import javax.ws.rs.WebApplicationException;
23 import javax.ws.rs.core.MediaType;
24 import javax.ws.rs.core.MultivaluedMap;
25 import javax.ws.rs.ext.MessageBodyReader;
26 import javax.ws.rs.ext.Provider;
27 import org.opendaylight.netconf.sal.rest.api.Draft02;
28 import org.opendaylight.netconf.sal.rest.api.RestconfService;
29 import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
30 import org.opendaylight.netconf.sal.restconf.impl.NormalizedNodeContext;
31 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
32 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
33 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
34 import org.opendaylight.restconf.utils.RestconfConstants;
35 import org.opendaylight.yangtools.util.xml.UntrustedXML;
36 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
37 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
38 import org.opendaylight.yangtools.yang.data.impl.codec.xml.XmlUtils;
39 import org.opendaylight.yangtools.yang.data.impl.schema.SchemaUtils;
40 import org.opendaylight.yangtools.yang.data.impl.schema.transform.dom.parser.DomToNormalizedNodeParserFactory;
41 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
42 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
43 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
44 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
45 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
46 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
47 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
48 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
49 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
50 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
51 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
52 import org.slf4j.Logger;
53 import org.slf4j.LoggerFactory;
54 import org.w3c.dom.Document;
55 import org.w3c.dom.Element;
56 import org.xml.sax.SAXException;
59 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.XML, Draft02.MediaTypes.OPERATION + RestconfService.XML,
60 MediaType.APPLICATION_XML, MediaType.TEXT_XML })
61 public class XmlNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
63 private final static Logger LOG = LoggerFactory.getLogger(XmlNormalizedNodeBodyReader.class);
66 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
67 final MediaType mediaType) {
72 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
73 final Annotation[] annotations, final MediaType mediaType,
74 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
75 WebApplicationException {
77 if (getUriInfo().getAbsolutePath().getPath().contains(RestconfConstants.DRAFT_PATTERN)) {
78 final org.opendaylight.restconf.jersey.providers.XmlNormalizedNodeBodyReader xmlReaderNewRest =
79 new org.opendaylight.restconf.jersey.providers.XmlNormalizedNodeBodyReader();
80 xmlReaderNewRest.injectParams(getUriInfo(), getRequest());
81 return xmlReaderNewRest.readFrom(type, genericType, annotations, mediaType, httpHeaders, entityStream);
83 return readFrom(entityStream);
85 } catch (final RestconfDocumentedException e){
87 } catch (final Exception e) {
88 LOG.debug("Error parsing xml input", e);
90 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
91 ErrorTag.MALFORMED_MESSAGE);
95 private NormalizedNodeContext readFrom(final InputStream entityStream) throws IOException, SAXException {
96 final InstanceIdentifierContext<?> path = getInstanceIdentifierContext();
98 if (entityStream.available() < 1) {
99 // represent empty nopayload input
100 return new NormalizedNodeContext(path, null);
103 final Document doc = UntrustedXML.newDocumentBuilder().parse(entityStream);
104 return parse(path, doc);
107 private NormalizedNodeContext parse(final InstanceIdentifierContext<?> pathContext,final Document doc) {
109 final List<Element> elements = Collections.singletonList(doc.getDocumentElement());
110 final SchemaNode schemaNodeContext = pathContext.getSchemaNode();
111 DataSchemaNode schemaNode;
112 boolean isRpc = false;
113 if (schemaNodeContext instanceof RpcDefinition) {
114 schemaNode = ((RpcDefinition) schemaNodeContext).getInput();
116 } else if (schemaNodeContext instanceof DataSchemaNode) {
117 schemaNode = (DataSchemaNode) schemaNodeContext;
119 throw new IllegalStateException("Unknown SchemaNode");
122 final String docRootElm = doc.getDocumentElement().getLocalName();
123 final String docRootNamespace = doc.getDocumentElement().getNamespaceURI();
124 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
125 InstanceIdentifierContext<? extends SchemaNode> outIIContext;
128 // FIXME the factory instance should be cached if the schema context is the same
129 final DomToNormalizedNodeParserFactory parserFactory =
130 DomToNormalizedNodeParserFactory.getInstance(XmlUtils.DEFAULT_XML_CODEC_PROVIDER, pathContext.getSchemaContext());
132 if (isPost() && !isRpc) {
133 final Deque<Object> foundSchemaNodes = findPathToSchemaNodeByName(schemaNode, docRootElm, docRootNamespace);
134 if (foundSchemaNodes.isEmpty()) {
135 throw new IllegalStateException(String.format("Child \"%s\" was not found in parent schema node \"%s\"",
136 docRootElm, schemaNode.getQName()));
138 while (!foundSchemaNodes.isEmpty()) {
139 final Object child = foundSchemaNodes.pop();
140 if (child instanceof AugmentationSchema) {
141 final AugmentationSchema augmentSchemaNode = (AugmentationSchema) child;
142 iiToDataList.add(SchemaUtils.getNodeIdentifierForAugmentation(augmentSchemaNode));
143 } else if (child instanceof DataSchemaNode) {
144 schemaNode = (DataSchemaNode) child;
145 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(schemaNode.getQName()));
150 final NormalizedNode<?, ?> parsed;
151 if (schemaNode instanceof ContainerSchemaNode) {
152 parsed = parserFactory.getContainerNodeParser().parse(
153 Collections.singletonList(doc.getDocumentElement()), (ContainerSchemaNode) schemaNode);
154 } else if (schemaNode instanceof ListSchemaNode) {
155 parsed = parserFactory.getMapEntryNodeParser().parse(elements, (ListSchemaNode) schemaNode);
157 iiToDataList.add(parsed.getIdentifier());
159 } else if (schemaNode instanceof LeafSchemaNode) {
160 parsed = parserFactory.getLeafNodeParser().parse(elements, (LeafSchemaNode) schemaNode);
162 LOG.warn("Unknown schema node extension {} was not parsed", schemaNode.getClass());
166 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
167 pathContext.getInstanceIdentifier().getPathArguments(), iiToDataList));
169 outIIContext = new InstanceIdentifierContext<>(fullIIToData, pathContext.getSchemaNode(), pathContext.getMountPoint(),
170 pathContext.getSchemaContext());
172 return new NormalizedNodeContext(outIIContext, parsed);
175 private static Deque<Object> findPathToSchemaNodeByName(final DataSchemaNode schemaNode, final String elementName,
176 final String namespace) {
177 final Deque<Object> result = new ArrayDeque<>();
178 final ArrayList<ChoiceSchemaNode> choiceSchemaNodes = new ArrayList<>();
179 final Collection<DataSchemaNode> children = ((DataNodeContainer) schemaNode).getChildNodes();
180 for (final DataSchemaNode child : children) {
181 if (child instanceof ChoiceSchemaNode) {
182 choiceSchemaNodes.add((ChoiceSchemaNode) child);
183 } else if (child.getQName().getLocalName().equalsIgnoreCase(elementName)
184 && child.getQName().getNamespace().toString().equalsIgnoreCase(namespace)) {
185 // add child to result
189 if (child.isAugmenting()) {
190 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, child);
191 if (augment != null) {
192 result.push(augment);
201 for (final ChoiceSchemaNode choiceNode : choiceSchemaNodes) {
202 for (final ChoiceCaseNode caseNode : choiceNode.getCases()) {
203 final Deque<Object> resultFromRecursion = findPathToSchemaNodeByName(caseNode, elementName, namespace);
204 if (!resultFromRecursion.isEmpty()) {
205 resultFromRecursion.push(choiceNode);
206 if (choiceNode.isAugmenting()) {
207 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, choiceNode);
208 if (augment != null) {
209 resultFromRecursion.push(augment);
212 return resultFromRecursion;
219 private static AugmentationSchema findCorrespondingAugment(final DataSchemaNode parent, final DataSchemaNode child) {
220 if ((parent instanceof AugmentationTarget) && !(parent instanceof ChoiceSchemaNode)) {
221 for (final AugmentationSchema augmentation : ((AugmentationTarget) parent).getAvailableAugmentations()) {
222 final DataSchemaNode childInAugmentation = augmentation.getDataChildByName(child.getQName());
223 if (childInAugmentation != null) {