2 * Copyright (c) 2016 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.restconf.nb.rfc8040.jersey.providers;
10 import com.google.common.collect.Iterables;
11 import com.google.gson.stream.JsonReader;
12 import java.io.InputStream;
13 import java.io.InputStreamReader;
14 import java.nio.charset.StandardCharsets;
15 import java.util.ArrayList;
16 import java.util.List;
17 import javax.ws.rs.Consumes;
18 import javax.ws.rs.WebApplicationException;
19 import javax.ws.rs.core.MediaType;
20 import javax.ws.rs.ext.Provider;
21 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
22 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
23 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
24 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
25 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
26 import org.opendaylight.restconf.nb.rfc8040.Rfc8040;
27 import org.opendaylight.restconf.nb.rfc8040.handlers.DOMMountPointServiceHandler;
28 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
29 import org.opendaylight.restconf.nb.rfc8040.jersey.providers.spi.AbstractNormalizedNodeBodyReader;
30 import org.opendaylight.restconf.nb.rfc8040.utils.RestconfConstants;
31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
32 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
33 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
34 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
35 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
36 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
37 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
38 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
39 import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactorySupplier;
40 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
41 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
42 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
43 import org.opendaylight.yangtools.yang.data.impl.schema.ResultAlreadySetException;
44 import org.opendaylight.yangtools.yang.model.api.OperationDefinition;
45 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
46 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
47 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
48 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
49 import org.slf4j.Logger;
50 import org.slf4j.LoggerFactory;
53 @Consumes({ Rfc8040.MediaTypes.DATA + RestconfConstants.JSON, MediaType.APPLICATION_JSON })
54 public class JsonNormalizedNodeBodyReader extends AbstractNormalizedNodeBodyReader {
55 private static final Logger LOG = LoggerFactory.getLogger(JsonNormalizedNodeBodyReader.class);
57 public JsonNormalizedNodeBodyReader(SchemaContextHandler schemaContextHandler,
58 DOMMountPointServiceHandler mountPointServiceHandler) {
59 super(schemaContextHandler, mountPointServiceHandler);
62 @SuppressWarnings("checkstyle:IllegalCatch")
64 protected NormalizedNodeContext readBody(final InstanceIdentifierContext<?> path, final InputStream entityStream)
65 throws WebApplicationException {
67 return readFrom(path, entityStream, isPost());
68 } catch (final Exception e) {
69 propagateExceptionAs(e);
74 public static NormalizedNodeContext readFrom(
75 final InstanceIdentifierContext<?> path, final InputStream entityStream, final boolean isPost) {
76 final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
77 final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
79 final SchemaNode parentSchema;
81 parentSchema = path.getSchemaNode();
82 } else if (path.getSchemaNode() instanceof SchemaContext) {
83 parentSchema = path.getSchemaContext();
85 if (SchemaPath.ROOT.equals(path.getSchemaNode().getPath().getParent())) {
86 parentSchema = path.getSchemaContext();
88 parentSchema = SchemaContextUtil
89 .findDataSchemaNode(path.getSchemaContext(), path.getSchemaNode().getPath().getParent());
93 final JsonParserStream jsonParser = JsonParserStream.create(writer,
94 JSONCodecFactorySupplier.RFC7951.getShared(path.getSchemaContext()), parentSchema);
96 final JsonReader reader = new JsonReader(new InputStreamReader(entityStream, StandardCharsets.UTF_8));
97 jsonParser.parse(reader);
99 NormalizedNode<?, ?> result = resultHolder.getResult();
100 final List<YangInstanceIdentifier.PathArgument> iiToDataList = new ArrayList<>();
101 InstanceIdentifierContext<? extends SchemaNode> newIIContext;
103 while (result instanceof AugmentationNode || result instanceof ChoiceNode) {
104 final Object childNode = ((DataContainerNode<?>) result).getValue().iterator().next();
106 iiToDataList.add(result.getIdentifier());
108 result = (NormalizedNode<?, ?>) childNode;
112 if (result instanceof MapEntryNode) {
113 iiToDataList.add(new YangInstanceIdentifier.NodeIdentifier(result.getNodeType()));
114 iiToDataList.add(result.getIdentifier());
116 if (!(parentSchema instanceof OperationDefinition)) {
117 iiToDataList.add(result.getIdentifier());
121 if (result instanceof MapNode) {
122 result = Iterables.getOnlyElement(((MapNode) result).getValue());
126 final YangInstanceIdentifier fullIIToData = YangInstanceIdentifier.create(Iterables.concat(
127 path.getInstanceIdentifier().getPathArguments(), iiToDataList));
129 newIIContext = new InstanceIdentifierContext<>(fullIIToData, path.getSchemaNode(), path.getMountPoint(),
130 path.getSchemaContext());
132 return new NormalizedNodeContext(newIIContext, result);
135 private static void propagateExceptionAs(final Exception exception) throws RestconfDocumentedException {
136 if (exception instanceof RestconfDocumentedException) {
137 throw (RestconfDocumentedException)exception;
140 if (exception instanceof ResultAlreadySetException) {
141 LOG.debug("Error parsing json input:", exception);
143 throw new RestconfDocumentedException("Error parsing json input: Failed to create new parse result data. "
144 + "Are you creating multiple resources/subresources in POST request?", exception);
147 LOG.debug("Error parsing json input", exception);
149 throw new RestconfDocumentedException("Error parsing input: " + exception.getMessage(), ErrorType.PROTOCOL,
150 ErrorTag.MALFORMED_MESSAGE, exception);