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.controller.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 javax.ws.rs.Consumes;
18 import javax.ws.rs.WebApplicationException;
19 import javax.ws.rs.core.MediaType;
20 import javax.ws.rs.core.MultivaluedMap;
21 import javax.ws.rs.ext.MessageBodyReader;
22 import javax.ws.rs.ext.Provider;
23 import org.opendaylight.controller.sal.rest.api.Draft02;
24 import org.opendaylight.controller.sal.rest.api.RestconfService;
25 import org.opendaylight.controller.sal.restconf.impl.InstanceIdentifierContext;
26 import org.opendaylight.controller.sal.restconf.impl.NormalizedNodeContext;
27 import org.opendaylight.controller.sal.restconf.impl.RestconfDocumentedException;
28 import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorTag;
29 import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorType;
30 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
31 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
32 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
33 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
34 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
35 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
36 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
37 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
38 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
39 import org.opendaylight.yangtools.yang.data.impl.schema.ResultAlreadySetException;
40 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
41 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
42 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
43 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
48 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.JSON, Draft02.MediaTypes.OPERATION + RestconfService.JSON,
49 MediaType.APPLICATION_JSON })
50 public class JsonNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
52 private final static Logger LOG = LoggerFactory.getLogger(JsonNormalizedNodeBodyReader.class);
55 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
56 final MediaType mediaType) {
61 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
62 final Annotation[] annotations, final MediaType mediaType,
63 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
64 WebApplicationException {
66 final InstanceIdentifierContext<?> path = getInstanceIdentifierContext();
67 if (entityStream.available() < 1) {
68 return new NormalizedNodeContext(path, null);
70 final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
71 final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
73 final SchemaNode parentSchema;
75 // FIXME: We need dispatch for RPC.
76 parentSchema = path.getSchemaNode();
77 } else if(path.getSchemaNode() instanceof SchemaContext) {
78 parentSchema = path.getSchemaContext();
80 if (SchemaPath.ROOT.equals(path.getSchemaNode().getPath().getParent())) {
81 parentSchema = path.getSchemaContext();
83 parentSchema = SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(), path.getSchemaNode().getPath().getParent());
87 final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(), parentSchema);
88 final JsonReader reader = new JsonReader(new InputStreamReader(entityStream));
89 jsonParser.parse(reader);
91 NormalizedNode<?, ?> partialResult = resultHolder.getResult();
92 final NormalizedNode<?, ?> result;
94 // FIXME: Also II should be updated unwrap result from augmentation and choice nodes on PUT
96 while (partialResult instanceof AugmentationNode || partialResult instanceof ChoiceNode) {
97 final Object childNode = ((DataContainerNode) partialResult).getValue().iterator().next();
98 partialResult = (NormalizedNode<?, ?>) childNode;
102 if (partialResult instanceof MapNode && !isPost()) {
103 result = Iterables.getOnlyElement(((MapNode) partialResult).getValue());
105 result = partialResult;
107 return new NormalizedNodeContext(path,result);
108 } catch (final RestconfDocumentedException e) {
110 } catch (final ResultAlreadySetException e) {
111 LOG.debug("Error parsing json input:", e);
113 throw new RestconfDocumentedException("Error parsing json input: Failed to create new parse result data. " +
114 "Are you creating multiple resources/subresources in POST request?");
115 } catch (final Exception e) {
116 LOG.debug("Error parsing json input", e);
118 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
119 ErrorTag.MALFORMED_MESSAGE);