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 com.google.gson.stream.JsonReader;
12 import java.io.IOException;
13 import java.io.InputStream;
14 import java.io.InputStreamReader;
15 import java.lang.annotation.Annotation;
16 import java.lang.reflect.Type;
17 import java.util.ArrayList;
18 import java.util.List;
19 import javax.ws.rs.Consumes;
20 import javax.ws.rs.WebApplicationException;
21 import javax.ws.rs.core.MediaType;
22 import javax.ws.rs.core.MultivaluedMap;
23 import javax.ws.rs.ext.MessageBodyReader;
24 import javax.ws.rs.ext.Provider;
25 import org.opendaylight.netconf.sal.rest.api.Draft02;
26 import org.opendaylight.netconf.sal.rest.api.RestconfService;
27 import org.opendaylight.netconf.sal.restconf.impl.ControllerContext;
28 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
29 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
30 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
31 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
32 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
33 import org.opendaylight.restconf.utils.RestconfConstants;
34 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
35 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
36 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
37 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
38 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
39 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
40 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
41 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
42 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
43 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
44 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
45 import org.opendaylight.yangtools.yang.data.impl.schema.ResultAlreadySetException;
46 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
47 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
48 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
49 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
50 import org.slf4j.Logger;
51 import org.slf4j.LoggerFactory;
54 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.JSON, Draft02.MediaTypes.OPERATION + RestconfService.JSON,
55 MediaType.APPLICATION_JSON })
56 public class JsonNormalizedNodeBodyReader
57 extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
59 private static final Logger LOG = LoggerFactory.getLogger(JsonNormalizedNodeBodyReader.class);
62 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
63 final MediaType mediaType) {
67 @SuppressWarnings("checkstyle:IllegalCatch")
69 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
70 final Annotation[] annotations, final MediaType mediaType,
71 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
72 WebApplicationException {
74 if (getUriInfo().getAbsolutePath().getPath().contains(RestconfConstants.DRAFT_PATTERN)) {
75 final org.opendaylight.restconf.jersey.providers.JsonNormalizedNodeBodyReader jsonReaderNewRest =
76 new org.opendaylight.restconf.jersey.providers.JsonNormalizedNodeBodyReader();
77 jsonReaderNewRest.injectParams(getUriInfo(), getRequest());
78 return jsonReaderNewRest.readFrom(type, genericType, annotations, mediaType, httpHeaders, entityStream);
81 return readFrom(getInstanceIdentifierContext(), entityStream, isPost());
82 } catch (final Exception e) {
83 propagateExceptionAs(e);
88 @SuppressWarnings("checkstyle:IllegalCatch")
89 public static NormalizedNodeContext readFrom(final String uriPath, final InputStream entityStream,
90 final boolean isPost) throws RestconfDocumentedException {
93 return readFrom(ControllerContext.getInstance().toInstanceIdentifier(uriPath), entityStream, isPost);
94 } catch (final Exception e) {
95 propagateExceptionAs(e);
100 private static NormalizedNodeContext readFrom(final InstanceIdentifierContext<?> path,
101 final InputStream entityStream, final boolean isPost)
103 if (entityStream.available() < 1) {
104 return new NormalizedNodeContext(path, null);
106 final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
107 final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
109 final SchemaNode parentSchema;
111 // FIXME: We need dispatch for RPC.
112 parentSchema = path.getSchemaNode();
113 } else if (path.getSchemaNode() instanceof SchemaContext) {
114 parentSchema = path.getSchemaContext();
116 if (SchemaPath.ROOT.equals(path.getSchemaNode().getPath().getParent())) {
117 parentSchema = path.getSchemaContext();
119 parentSchema = SchemaContextUtil
120 .findDataSchemaNode(path.getSchemaContext(), path.getSchemaNode().getPath().getParent());
124 final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(), parentSchema);
125 final JsonReader reader = new JsonReader(new InputStreamReader(entityStream));
126 jsonParser.parse(reader);
128 NormalizedNode<?, ?> result = resultHolder.getResult();
129 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
130 InstanceIdentifierContext<? extends SchemaNode> newIIContext;
132 while (result instanceof AugmentationNode || result instanceof ChoiceNode) {
133 final Object childNode = ((DataContainerNode<?>) result).getValue().iterator().next();
135 iiToDataList.add(result.getIdentifier());
137 result = (NormalizedNode<?, ?>) childNode;
141 if (result instanceof MapEntryNode) {
142 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(result.getNodeType()));
143 iiToDataList.add(result.getIdentifier());
145 iiToDataList.add(result.getIdentifier());
148 if (result instanceof MapNode) {
149 result = Iterables.getOnlyElement(((MapNode) result).getValue());
153 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
154 path.getInstanceIdentifier().getPathArguments(), iiToDataList));
156 newIIContext = new InstanceIdentifierContext<>(fullIIToData, path.getSchemaNode(), path.getMountPoint(),
157 path.getSchemaContext());
159 return new NormalizedNodeContext(newIIContext, result);
162 private static void propagateExceptionAs(final Exception exception) throws RestconfDocumentedException {
163 if (exception instanceof RestconfDocumentedException) {
164 throw (RestconfDocumentedException)exception;
167 if (exception instanceof ResultAlreadySetException) {
168 LOG.debug("Error parsing json input:", exception);
170 throw new RestconfDocumentedException("Error parsing json input: Failed to create new parse result data. "
171 + "Are you creating multiple resources/subresources in POST request?", exception);
174 LOG.debug("Error parsing json input", exception);
176 throw new RestconfDocumentedException("Error parsing input: " + exception.getMessage(), ErrorType.PROTOCOL,
177 ErrorTag.MALFORMED_MESSAGE, exception);