package org.opendaylight.controller.sal.rest.impl;
import com.google.common.base.Charsets;
+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.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.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.SchemaContext;
final MediaType mediaType, final MultivaluedMap<String, Object> httpHeaders, final OutputStream entityStream)
throws IOException, WebApplicationException {
NormalizedNode<?, ?> data = t.getData();
- InstanceIdentifierContext context = t.getInstanceIdentifierContext();
- DataSchemaNode schema = context.getSchemaNode();
- SchemaPath path = context.getSchemaNode().getPath();
- OutputStreamWriter outputWriter = new OutputStreamWriter(entityStream, Charsets.UTF_8);
if (data == null) {
- throw new RestconfDocumentedException(Response.Status.NOT_FOUND);
+ return;
}
+ final InstanceIdentifierContext<DataSchemaNode> context = (InstanceIdentifierContext<DataSchemaNode>) t.getInstanceIdentifierContext();
+
+ SchemaPath path = context.getSchemaNode().getPath();
boolean isDataRoot = false;
- URI initialNs = null;
- outputWriter.write('{');
if (SchemaPath.ROOT.equals(path)) {
isDataRoot = true;
} else {
path = path.getParent();
// FIXME: Add proper handling of reading root.
}
- if(!schema.isAugmenting() && !(schema instanceof SchemaContext)) {
- initialNs = schema.getQName().getNamespace();
- }
- NormalizedNodeStreamWriter jsonWriter = JSONNormalizedNodeStreamWriter.create(context.getSchemaContext(),path,initialNs,outputWriter);
- NormalizedNodeWriter nnWriter = NormalizedNodeWriter.forStreamWriter(jsonWriter);
+
+ final JsonWriter jsonWriter = createJsonWriter(entityStream);
+ final NormalizedNodeWriter nnWriter = createNormalizedNodeWriter(context,path,jsonWriter);
+
+ jsonWriter.beginObject();
if(isDataRoot) {
- writeDataRoot(outputWriter,nnWriter,(ContainerNode) data);
+ writeDataRoot(nnWriter,(ContainerNode) data);
} else {
if(data instanceof MapEntryNode) {
data = ImmutableNodes.mapNodeBuilder(data.getNodeType()).withChild(((MapEntryNode) data)).build();
}
nnWriter.write(data);
}
+
nnWriter.flush();
- outputWriter.write('}');
- outputWriter.flush();
+ jsonWriter.endObject();
+ jsonWriter.flush();
+ }
+
+ private NormalizedNodeWriter createNormalizedNodeWriter(final InstanceIdentifierContext<DataSchemaNode> context,
+ final SchemaPath path, final JsonWriter jsonWriter) {
+
+ final DataSchemaNode schema = context.getSchemaNode();
+ final JSONCodecFactory codecs = getCodecFactory(context);
+
+ URI initialNs = null;
+ if(!schema.isAugmenting() && !(schema instanceof SchemaContext)) {
+ initialNs = schema.getQName().getNamespace();
+ }
+ final NormalizedNodeStreamWriter streamWriter = JSONNormalizedNodeStreamWriter.createNestedWriter(codecs,path,initialNs,jsonWriter);
+ return NormalizedNodeWriter.forStreamWriter(streamWriter);
+ }
+
+ private JsonWriter createJsonWriter(final OutputStream entityStream) {
+ // FIXME BUG-2153: Add pretty print support
+ 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());
}
- private void writeDataRoot(OutputStreamWriter outputWriter, NormalizedNodeWriter nnWriter, ContainerNode data) throws IOException {
- Iterator<DataContainerChild<? extends PathArgument, ?>> iterator = data.getValue().iterator();
- while(iterator.hasNext()) {
- DataContainerChild<? extends PathArgument, ?> child = iterator.next();
+ private void writeDataRoot(final NormalizedNodeWriter nnWriter, final ContainerNode data) throws IOException {
+ for(final DataContainerChild<? extends PathArgument, ?> child : data.getValue()) {
nnWriter.write(child);
- nnWriter.flush();
}
}