package org.opendaylight.controller.sal.rest.impl;
import com.google.common.base.Charsets;
+import com.google.common.base.Optional;
+import com.google.gson.stream.JsonWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.net.URI;
-import java.util.Iterator;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
-import javax.ws.rs.core.Response;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import org.opendaylight.controller.sal.rest.api.Draft02;
+import org.opendaylight.controller.sal.rest.api.RestconfNormalizedNodeWriter;
import org.opendaylight.controller.sal.rest.api.RestconfService;
import org.opendaylight.controller.sal.restconf.impl.InstanceIdentifierContext;
import org.opendaylight.controller.sal.restconf.impl.NormalizedNodeContext;
-import org.opendaylight.controller.sal.restconf.impl.RestconfDocumentedException;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
-import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
+import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactory;
import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
+import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.opendaylight.yangtools.yang.model.api.SchemaPath;
@Provider
Draft02.MediaTypes.OPERATION + RestconfService.JSON, MediaType.APPLICATION_JSON })
public class NormalizedNodeJsonBodyWriter implements MessageBodyWriter<NormalizedNodeContext> {
+ private static final int DEFAULT_INDENT_SPACES_NUM = 2;
+
@Override
public boolean isWriteable(final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
return type.equals(NormalizedNodeContext.class);
final MediaType mediaType, final MultivaluedMap<String, Object> httpHeaders, final OutputStream entityStream)
throws IOException, WebApplicationException {
NormalizedNode<?, ?> data = t.getData();
- final InstanceIdentifierContext context = t.getInstanceIdentifierContext();
- final DataSchemaNode schema = context.getSchemaNode();
- SchemaPath path = context.getSchemaNode().getPath();
- final OutputStreamWriter outputWriter = new OutputStreamWriter(entityStream, Charsets.UTF_8);
if (data == null) {
- throw new RestconfDocumentedException(Response.Status.NOT_FOUND);
+ return;
}
- boolean isDataRoot = false;
- URI initialNs = null;
+ @SuppressWarnings("unchecked")
+ final InstanceIdentifierContext<SchemaNode> context = (InstanceIdentifierContext<SchemaNode>) t.getInstanceIdentifierContext();
+
+ SchemaPath path = context.getSchemaNode().getPath();
+ final JsonWriter jsonWriter = createJsonWriter(entityStream, t.getWriterParameters().isPrettyPrint());
+ jsonWriter.beginObject();
+ writeNormalizedNode(jsonWriter,path,context,data, t.getWriterParameters().getDepth());
+ jsonWriter.endObject();
+ jsonWriter.flush();
+ }
+
+ private void writeNormalizedNode(JsonWriter jsonWriter, SchemaPath path,
+ InstanceIdentifierContext<SchemaNode> context, NormalizedNode<?, ?> data, Optional<Integer> depth) throws
+ IOException {
+ final RestconfNormalizedNodeWriter nnWriter;
if (SchemaPath.ROOT.equals(path)) {
- isDataRoot = true;
+ /*
+ * Creates writer without initialNs and we write children of root data container
+ * which is not visible in restconf
+ */
+ nnWriter = createNormalizedNodeWriter(context,path,jsonWriter, depth);
+ writeChildren(nnWriter,(ContainerNode) data);
+ } else if (context.getSchemaNode() instanceof RpcDefinition) {
+ /*
+ * RpcDefinition is not supported as initial codec in JSONStreamWriter,
+ * so we need to emit initial output declaratation..
+ */
+ path = ((RpcDefinition) context.getSchemaNode()).getOutput().getPath();
+ nnWriter = createNormalizedNodeWriter(context,path,jsonWriter, depth);
+ jsonWriter.name("output");
+ jsonWriter.beginObject();
+ writeChildren(nnWriter, (ContainerNode) data);
+ jsonWriter.endObject();
} else {
path = path.getParent();
- // FIXME: Add proper handling of reading root.
- }
- if(!schema.isAugmenting() && !(schema instanceof SchemaContext)) {
- initialNs = schema.getQName().getNamespace();
- }
- final NormalizedNodeStreamWriter jsonWriter = JSONNormalizedNodeStreamWriter.create(context.getSchemaContext(),path,initialNs,outputWriter);
- final NormalizedNodeWriter nnWriter = NormalizedNodeWriter.forStreamWriter(jsonWriter);
- if(isDataRoot) {
- writeDataRoot(outputWriter,nnWriter,(ContainerNode) data);
- } else {
+
if(data instanceof MapEntryNode) {
data = ImmutableNodes.mapNodeBuilder(data.getNodeType()).withChild(((MapEntryNode) data)).build();
}
+ nnWriter = createNormalizedNodeWriter(context,path,jsonWriter, depth);
nnWriter.write(data);
}
nnWriter.flush();
- outputWriter.flush();
}
- private void writeDataRoot(final OutputStreamWriter outputWriter, final NormalizedNodeWriter nnWriter, final ContainerNode data) throws IOException {
- final Iterator<DataContainerChild<? extends PathArgument, ?>> iterator = data.getValue().iterator();
- while(iterator.hasNext()) {
- final DataContainerChild<? extends PathArgument, ?> child = iterator.next();
+ private void writeChildren(final RestconfNormalizedNodeWriter nnWriter, final ContainerNode data) throws IOException {
+ for(final DataContainerChild<? extends PathArgument, ?> child : data.getValue()) {
nnWriter.write(child);
- nnWriter.flush();
}
}
+ private RestconfNormalizedNodeWriter createNormalizedNodeWriter(final InstanceIdentifierContext<SchemaNode> context,
+ final SchemaPath path, final JsonWriter jsonWriter, Optional<Integer> depth) {
+
+ final SchemaNode schema = context.getSchemaNode();
+ final JSONCodecFactory codecs = getCodecFactory(context);
+
+ final URI initialNs;
+ if ((schema instanceof DataSchemaNode)
+ && !((DataSchemaNode)schema).isAugmenting()
+ && !(schema instanceof SchemaContext)) {
+ initialNs = schema.getQName().getNamespace();
+ } else if (schema instanceof RpcDefinition) {
+ initialNs = schema.getQName().getNamespace();
+ } else {
+ initialNs = null;
+ }
+ final NormalizedNodeStreamWriter streamWriter = JSONNormalizedNodeStreamWriter.createNestedWriter(codecs,path,initialNs,jsonWriter);
+ if (depth.isPresent()) {
+ return DepthAwareNormalizedNodeWriter.forStreamWriter(streamWriter, depth.get());
+ } else {
+ return RestconfDelegatingNormalizedNodeWriter.forStreamWriter(streamWriter);
+ }
+ }
+
+ private JsonWriter createJsonWriter(final OutputStream entityStream, boolean prettyPrint) {
+ if (prettyPrint) {
+ return JsonWriterFactory.createJsonWriter(new OutputStreamWriter(entityStream, Charsets.UTF_8),
+ DEFAULT_INDENT_SPACES_NUM);
+ } else {
+ return JsonWriterFactory.createJsonWriter(new OutputStreamWriter(entityStream, Charsets.UTF_8));
+ }
+ }
+
+ private JSONCodecFactory getCodecFactory(final InstanceIdentifierContext<?> context) {
+ // TODO: Performance: Cache JSON Codec factory and schema context
+ return JSONCodecFactory.create(context.getSchemaContext());
+ }
+
}
Code Review / controller.git / blobdiff