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.base.Charsets;
11 import java.io.IOException;
12 import java.io.OutputStream;
13 import java.io.OutputStreamWriter;
14 import java.lang.annotation.Annotation;
15 import java.lang.reflect.Type;
17 import java.util.Iterator;
18 import javax.ws.rs.Produces;
19 import javax.ws.rs.WebApplicationException;
20 import javax.ws.rs.core.MediaType;
21 import javax.ws.rs.core.MultivaluedMap;
22 import javax.ws.rs.core.Response;
23 import javax.ws.rs.ext.MessageBodyWriter;
24 import javax.ws.rs.ext.Provider;
25 import org.opendaylight.controller.sal.rest.api.Draft02;
26 import org.opendaylight.controller.sal.rest.api.RestconfService;
27 import org.opendaylight.controller.sal.restconf.impl.InstanceIdentifierContext;
28 import org.opendaylight.controller.sal.restconf.impl.NormalizedNodeContext;
29 import org.opendaylight.controller.sal.restconf.impl.RestconfDocumentedException;
30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
31 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
32 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
33 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
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.api.schema.stream.NormalizedNodeWriter;
37 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
38 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
39 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
40 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
41 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
44 @Produces({ Draft02.MediaTypes.API + RestconfService.JSON, Draft02.MediaTypes.DATA + RestconfService.JSON,
45 Draft02.MediaTypes.OPERATION + RestconfService.JSON, MediaType.APPLICATION_JSON })
46 public class NormalizedNodeJsonBodyWriter implements MessageBodyWriter<NormalizedNodeContext> {
49 public boolean isWriteable(final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
50 return type.equals(NormalizedNodeContext.class);
54 public long getSize(final NormalizedNodeContext t, final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
59 public void writeTo(final NormalizedNodeContext t, final Class<?> type, final Type genericType, final Annotation[] annotations,
60 final MediaType mediaType, final MultivaluedMap<String, Object> httpHeaders, final OutputStream entityStream)
61 throws IOException, WebApplicationException {
62 NormalizedNode<?, ?> data = t.getData();
63 InstanceIdentifierContext context = t.getInstanceIdentifierContext();
64 DataSchemaNode schema = context.getSchemaNode();
65 SchemaPath path = context.getSchemaNode().getPath();
66 OutputStreamWriter outputWriter = new OutputStreamWriter(entityStream, Charsets.UTF_8);
68 throw new RestconfDocumentedException(Response.Status.NOT_FOUND);
71 boolean isDataRoot = false;
73 outputWriter.write('{');
74 if (SchemaPath.ROOT.equals(path)) {
77 path = path.getParent();
78 // FIXME: Add proper handling of reading root.
80 if(!schema.isAugmenting() && !(schema instanceof SchemaContext)) {
81 initialNs = schema.getQName().getNamespace();
83 NormalizedNodeStreamWriter jsonWriter = JSONNormalizedNodeStreamWriter.create(context.getSchemaContext(),path,initialNs,outputWriter);
84 NormalizedNodeWriter nnWriter = NormalizedNodeWriter.forStreamWriter(jsonWriter);
86 writeDataRoot(outputWriter,nnWriter,(ContainerNode) data);
88 if(data instanceof MapEntryNode) {
89 data = ImmutableNodes.mapNodeBuilder(data.getNodeType()).withChild(((MapEntryNode) data)).build();
94 outputWriter.write('}');
98 private void writeDataRoot(OutputStreamWriter outputWriter, NormalizedNodeWriter nnWriter, ContainerNode data) throws IOException {
99 Iterator<DataContainerChild<? extends PathArgument, ?>> iterator = data.getValue().iterator();
100 while(iterator.hasNext()) {
101 DataContainerChild<? extends PathArgument, ?> child = iterator.next();
102 nnWriter.write(child);