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.nio.charset.StandardCharsets;
18 import java.util.ArrayList;
19 import java.util.List;
20 import java.util.Optional;
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.ControllerContext;
30 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
31 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
32 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
33 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
34 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
35 import org.opendaylight.restconf.common.util.RestUtil;
36 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
37 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
38 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
39 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
40 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
41 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
42 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
43 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
44 import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactorySupplier;
45 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
46 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
47 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
48 import org.opendaylight.yangtools.yang.data.impl.schema.ResultAlreadySetException;
49 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
50 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
51 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
52 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
53 import org.slf4j.Logger;
54 import org.slf4j.LoggerFactory;
58 Draft02.MediaTypes.DATA + RestconfService.JSON,
59 Draft02.MediaTypes.OPERATION + RestconfService.JSON,
60 MediaType.APPLICATION_JSON
62 public class JsonNormalizedNodeBodyReader
63 extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
65 private static final Logger LOG = LoggerFactory.getLogger(JsonNormalizedNodeBodyReader.class);
67 public JsonNormalizedNodeBodyReader(ControllerContext controllerContext) {
68 super(controllerContext);
72 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
73 final MediaType mediaType) {
77 @SuppressWarnings("checkstyle:IllegalCatch")
79 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
80 final Annotation[] annotations, final MediaType mediaType,
81 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws
82 WebApplicationException {
84 return readFrom(getInstanceIdentifierContext(), entityStream, isPost());
85 } catch (final Exception e) {
86 propagateExceptionAs(e);
91 @SuppressWarnings("checkstyle:IllegalCatch")
92 public static NormalizedNodeContext readFrom(final String uriPath, final InputStream entityStream,
93 final boolean isPost, final ControllerContext controllerContext) throws RestconfDocumentedException {
96 return readFrom(controllerContext.toInstanceIdentifier(uriPath), entityStream, isPost);
97 } catch (final Exception e) {
98 propagateExceptionAs(e);
103 private static NormalizedNodeContext readFrom(final InstanceIdentifierContext<?> path,
104 final InputStream entityStream, final boolean isPost)
106 final Optional<InputStream> nonEmptyInputStreamOptional = RestUtil.isInputStreamEmpty(entityStream);
107 if (!nonEmptyInputStreamOptional.isPresent()) {
108 return new NormalizedNodeContext(path, null);
110 final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
111 final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
113 final SchemaNode parentSchema;
115 // FIXME: We need dispatch for RPC.
116 parentSchema = path.getSchemaNode();
117 } else if (path.getSchemaNode() instanceof SchemaContext) {
118 parentSchema = path.getSchemaContext();
120 if (SchemaPath.ROOT.equals(path.getSchemaNode().getPath().getParent())) {
121 parentSchema = path.getSchemaContext();
123 parentSchema = SchemaContextUtil
124 .findDataSchemaNode(path.getSchemaContext(), path.getSchemaNode().getPath().getParent());
128 final JsonParserStream jsonParser = JsonParserStream.create(writer,
129 JSONCodecFactorySupplier.DRAFT_LHOTKA_NETMOD_YANG_JSON_02.getShared(path.getSchemaContext()), parentSchema);
130 final JsonReader reader = new JsonReader(new InputStreamReader(nonEmptyInputStreamOptional.get(),
131 StandardCharsets.UTF_8));
132 jsonParser.parse(reader);
134 NormalizedNode<?, ?> result = resultHolder.getResult();
135 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
136 InstanceIdentifierContext<? extends SchemaNode> newIIContext;
138 while (result instanceof AugmentationNode || result instanceof ChoiceNode) {
139 final Object childNode = ((DataContainerNode<?>) result).getValue().iterator().next();
141 iiToDataList.add(result.getIdentifier());
143 result = (NormalizedNode<?, ?>) childNode;
147 if (result instanceof MapEntryNode) {
148 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(result.getNodeType()));
149 iiToDataList.add(result.getIdentifier());
151 iiToDataList.add(result.getIdentifier());
154 if (result instanceof MapNode) {
155 result = Iterables.getOnlyElement(((MapNode) result).getValue());
159 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
160 path.getInstanceIdentifier().getPathArguments(), iiToDataList));
162 newIIContext = new InstanceIdentifierContext<>(fullIIToData, path.getSchemaNode(), path.getMountPoint(),
163 path.getSchemaContext());
165 return new NormalizedNodeContext(newIIContext, result);
168 private static void propagateExceptionAs(final Exception exception) throws RestconfDocumentedException {
169 if (exception instanceof RestconfDocumentedException) {
170 throw (RestconfDocumentedException)exception;
173 if (exception instanceof ResultAlreadySetException) {
174 LOG.debug("Error parsing json input:", exception);
176 throw new RestconfDocumentedException("Error parsing json input: Failed to create new parse result data. "
177 + "Are you creating multiple resources/subresources in POST request?", exception);
180 LOG.debug("Error parsing json input", exception);
182 throw new RestconfDocumentedException("Error parsing input: " + exception.getMessage(), ErrorType.PROTOCOL,
183 ErrorTag.MALFORMED_MESSAGE, exception);