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.ListSchemaNode;
49 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
50 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
51 import org.slf4j.Logger;
52 import org.slf4j.LoggerFactory;
53 import org.w3c.dom.Document;
54 import org.w3c.dom.Element;
55 import org.xml.sax.SAXException;
58 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.XML, Draft02.MediaTypes.OPERATION + RestconfService.XML,
59 MediaType.APPLICATION_XML, MediaType.TEXT_XML })
60 public class XmlNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
62 private final static Logger LOG = LoggerFactory.getLogger(XmlNormalizedNodeBodyReader.class);
65 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
66 final MediaType mediaType) {
71 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
72 final Annotation[] annotations, final MediaType mediaType,
73 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
74 WebApplicationException {
76 if (getUriInfo().getAbsolutePath().getPath().contains(RestconfConstants.DRAFT_PATTERN)) {
77 final org.opendaylight.restconf.jersey.providers.XmlNormalizedNodeBodyReader xmlReaderNewRest =
78 new org.opendaylight.restconf.jersey.providers.XmlNormalizedNodeBodyReader();
79 xmlReaderNewRest.injectParams(getUriInfo(), getRequest());
80 return xmlReaderNewRest.readFrom(type, genericType, annotations, mediaType, httpHeaders, entityStream);
82 return readFrom(entityStream);
84 } catch (final RestconfDocumentedException e){
86 } catch (final Exception e) {
87 LOG.debug("Error parsing xml input", e);
89 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
90 ErrorTag.MALFORMED_MESSAGE);
94 private NormalizedNodeContext readFrom(final InputStream entityStream) throws IOException, SAXException {
95 final InstanceIdentifierContext<?> path = getInstanceIdentifierContext();
97 if (entityStream.available() < 1) {
98 // represent empty nopayload input
99 return new NormalizedNodeContext(path, null);
102 final Document doc = UntrustedXML.newDocumentBuilder().parse(entityStream);
103 return parse(path, doc);
106 private NormalizedNodeContext parse(final InstanceIdentifierContext<?> pathContext,final Document doc) {
108 final List<Element> elements = Collections.singletonList(doc.getDocumentElement());
109 final SchemaNode schemaNodeContext = pathContext.getSchemaNode();
110 DataSchemaNode schemaNode;
111 boolean isRpc = false;
112 if (schemaNodeContext instanceof RpcDefinition) {
113 schemaNode = ((RpcDefinition) schemaNodeContext).getInput();
115 } else if (schemaNodeContext instanceof DataSchemaNode) {
116 schemaNode = (DataSchemaNode) schemaNodeContext;
118 throw new IllegalStateException("Unknown SchemaNode");
121 final String docRootElm = doc.getDocumentElement().getLocalName();
122 final String docRootNamespace = doc.getDocumentElement().getNamespaceURI();
123 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
124 InstanceIdentifierContext<? extends SchemaNode> outIIContext;
127 // FIXME the factory instance should be cached if the schema context is the same
128 final DomToNormalizedNodeParserFactory parserFactory =
129 DomToNormalizedNodeParserFactory.getInstance(XmlUtils.DEFAULT_XML_CODEC_PROVIDER, pathContext.getSchemaContext());
131 if (isPost() && !isRpc) {
132 final Deque<Object> foundSchemaNodes = findPathToSchemaNodeByName(schemaNode, docRootElm, docRootNamespace);
133 if (foundSchemaNodes.isEmpty()) {
134 throw new IllegalStateException(String.format("Child \"%s\" was not found in parent schema node \"%s\"",
135 docRootElm, schemaNode.getQName()));
137 while (!foundSchemaNodes.isEmpty()) {
138 final Object child = foundSchemaNodes.pop();
139 if (child instanceof AugmentationSchema) {
140 final AugmentationSchema augmentSchemaNode = (AugmentationSchema) child;
141 iiToDataList.add(SchemaUtils.getNodeIdentifierForAugmentation(augmentSchemaNode));
142 } else if (child instanceof DataSchemaNode) {
143 schemaNode = (DataSchemaNode) child;
144 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(schemaNode.getQName()));
149 NormalizedNode<?, ?> parsed = null;
151 if (schemaNode instanceof ContainerSchemaNode) {
152 parsed = parserFactory.getContainerNodeParser().parse(Collections.singletonList(doc.getDocumentElement()), (ContainerSchemaNode) schemaNode);
153 } else if(schemaNode instanceof ListSchemaNode) {
154 final ListSchemaNode casted = (ListSchemaNode) schemaNode;
155 parsed = parserFactory.getMapEntryNodeParser().parse(elements, casted);
157 iiToDataList.add(parsed.getIdentifier());
160 // FIXME : add another DataSchemaNode extensions e.g. LeafSchemaNode
162 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
163 pathContext.getInstanceIdentifier().getPathArguments(), iiToDataList));
165 outIIContext = new InstanceIdentifierContext<>(fullIIToData, pathContext.getSchemaNode(), pathContext.getMountPoint(),
166 pathContext.getSchemaContext());
168 return new NormalizedNodeContext(outIIContext, parsed);
171 private static Deque<Object> findPathToSchemaNodeByName(final DataSchemaNode schemaNode, final String elementName,
172 final String namespace) {
173 final Deque<Object> result = new ArrayDeque<>();
174 final ArrayList<ChoiceSchemaNode> choiceSchemaNodes = new ArrayList<>();
175 final Collection<DataSchemaNode> children = ((DataNodeContainer) schemaNode).getChildNodes();
176 for (final DataSchemaNode child : children) {
177 if (child instanceof ChoiceSchemaNode) {
178 choiceSchemaNodes.add((ChoiceSchemaNode) child);
179 } else if (child.getQName().getLocalName().equalsIgnoreCase(elementName)
180 && child.getQName().getNamespace().toString().equalsIgnoreCase(namespace)) {
181 // add child to result
185 if (child.isAugmenting()) {
186 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, child);
187 if (augment != null) {
188 result.push(augment);
197 for (final ChoiceSchemaNode choiceNode : choiceSchemaNodes) {
198 for (final ChoiceCaseNode caseNode : choiceNode.getCases()) {
199 final Deque<Object> resultFromRecursion = findPathToSchemaNodeByName(caseNode, elementName, namespace);
200 if (!resultFromRecursion.isEmpty()) {
201 resultFromRecursion.push(choiceNode);
202 if (choiceNode.isAugmenting()) {
203 final AugmentationSchema augment = findCorrespondingAugment(schemaNode, choiceNode);
204 if (augment != null) {
205 resultFromRecursion.push(augment);
208 return resultFromRecursion;
215 private static AugmentationSchema findCorrespondingAugment(final DataSchemaNode parent, final DataSchemaNode child) {
216 if ((parent instanceof AugmentationTarget) && !(parent instanceof ChoiceSchemaNode)) {
217 for (final AugmentationSchema augmentation : ((AugmentationTarget) parent).getAvailableAugmentations()) {
218 final DataSchemaNode childInAugmentation = augmentation.getDataChildByName(child.getQName());
219 if (childInAugmentation != null) {