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.SchemaContext;
37 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
38 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
39 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
44 @Consumes({ Draft02.MediaTypes.DATA + RestconfService.JSON, Draft02.MediaTypes.OPERATION + RestconfService.JSON,
45 MediaType.APPLICATION_JSON })
46 public class JsonNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsProvider implements MessageBodyReader<NormalizedNodeContext> {
48 private final static Logger LOG = LoggerFactory.getLogger(JsonNormalizedNodeBodyReader.class);
51 public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations,
52 final MediaType mediaType) {
57 public NormalizedNodeContext readFrom(final Class<NormalizedNodeContext> type, final Type genericType,
58 final Annotation[] annotations, final MediaType mediaType,
59 final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException,
60 WebApplicationException {
62 final InstanceIdentifierContext<?> path = getIdentifierWithSchema().get();
63 if (entityStream.available() < 1) {
64 return new NormalizedNodeContext(path, null);
66 final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
67 final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
69 final SchemaNode parentSchema;
71 // FIXME: We need dispatch for RPC.
72 parentSchema = path.getSchemaNode();
73 } else if(path.getSchemaNode() instanceof SchemaContext) {
74 parentSchema = path.getSchemaContext();
76 if (SchemaPath.ROOT.equals(path.getSchemaNode().getPath().getParent())) {
77 parentSchema = path.getSchemaContext();
79 parentSchema = SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(), path.getSchemaNode().getPath().getParent());
83 final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(), parentSchema);
84 final JsonReader reader = new JsonReader(new InputStreamReader(entityStream));
85 jsonParser.parse(reader);
87 final NormalizedNode<?, ?> partialResult = resultHolder.getResult();
88 final NormalizedNode<?, ?> result;
89 if(partialResult instanceof MapNode) {
90 result = Iterables.getOnlyElement(((MapNode) partialResult).getValue());
92 result = partialResult;
94 return new NormalizedNodeContext(path,result);
95 } catch (final Exception e) {
96 LOG.debug("Error parsing json input", e);
98 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
99 ErrorTag.MALFORMED_MESSAGE);