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.MapNode;
31 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
32 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
33 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
34 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
35 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
36 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
37 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
38 import org.slf4j.Logger;
39 import org.slf4j.LoggerFactory;
42 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.JSON, Draft02.MediaTypes.OPERATION + RestconfService.JSON,
43 MediaType.APPLICATION_JSON })
44 public class JsonNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
46 private final static Logger LOG = LoggerFactory.getLogger(JsonNormalizedNodeBodyReader.class);
49 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
50 final MediaType mediaType) {
55 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
56 final Annotation[] annotations, final MediaType mediaType,
57 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
58 WebApplicationException {
60 final InstanceIdentifierContext<?> path = getIdentifierWithSchema().get();
61 final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
62 final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
64 final SchemaNode parentSchema = SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(), path.getSchemaNode().getPath().getParent());
65 final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(), parentSchema);
66 final JsonReader reader = new JsonReader(new InputStreamReader(entityStream));
67 jsonParser.parse(reader);
69 final NormalizedNode<?, ?> partialResult = resultHolder.getResult();
70 final NormalizedNode<?, ?> result;
71 if(partialResult instanceof MapNode) {
73 result = Iterables.getOnlyElement(((MapNode) partialResult).getValue());
75 result = partialResult;
77 return new NormalizedNodeContext(path,result);
78 } catch (final Exception e) {
79 LOG.debug("Error parsing json input", e);
81 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
82 ErrorTag.MALFORMED_MESSAGE);