Merge "Bug 2948: Perform create snapshot synchronously"

[controller.git] / opendaylight / md-sal / sal-rest-connector / src / main / java / org / opendaylight / controller / sal / rest / impl / NormalizedNodeJsonBodyWriter.java

diff --git a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/NormalizedNodeJsonBodyWriter.java b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/NormalizedNodeJsonBodyWriter.java
index edf42b681fa2a458e2429145febb8fe649c4aaaa..5c17f2a14ab2558c4acd089e224828a9248530eb 100644 (file)
--- a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/NormalizedNodeJsonBodyWriter.java
+++ b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/NormalizedNodeJsonBodyWriter.java
@@ -37,7 +37,9 @@ import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamW
 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
@@ -64,44 +66,71 @@ public class NormalizedNodeJsonBodyWriter implements MessageBodyWriter<Normalize
             return;
         }
 
-        final InstanceIdentifierContext<DataSchemaNode> context = (InstanceIdentifierContext<DataSchemaNode>) t.getInstanceIdentifierContext();
+        @SuppressWarnings("unchecked")
+        final InstanceIdentifierContext<SchemaNode> context = (InstanceIdentifierContext<SchemaNode>) t.getInstanceIdentifierContext();
 
         SchemaPath path = context.getSchemaNode().getPath();
-        boolean isDataRoot = false;
+        final JsonWriter jsonWriter = createJsonWriter(entityStream);
+        jsonWriter.beginObject();
+        writeNormalizedNode(jsonWriter,path,context,data);
+        jsonWriter.endObject();
+        jsonWriter.flush();
+    }
+
+    private void writeNormalizedNode(JsonWriter jsonWriter, SchemaPath path,
+            InstanceIdentifierContext<SchemaNode> context, NormalizedNode<?, ?> data) throws IOException {
+        final NormalizedNodeWriter 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);
+            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);
+            jsonWriter.name("output");
+            jsonWriter.beginObject();
+            writeChildren(nnWriter, (ContainerNode) data);
+            jsonWriter.endObject();
         } else {
             path = path.getParent();
-            // FIXME: Add proper handling of reading root.
-        }
 
-        final JsonWriter jsonWriter = createJsonWriter(entityStream);
-        final NormalizedNodeWriter nnWriter = createNormalizedNodeWriter(context,path,jsonWriter);
-
-        jsonWriter.beginObject();
-        if(isDataRoot) {
-            writeDataRoot(nnWriter,(ContainerNode) data);
-        } else {
             if(data instanceof MapEntryNode) {
                 data = ImmutableNodes.mapNodeBuilder(data.getNodeType()).withChild(((MapEntryNode) data)).build();
             }
+            nnWriter = createNormalizedNodeWriter(context,path,jsonWriter);
             nnWriter.write(data);
         }
-
         nnWriter.flush();
-        jsonWriter.endObject();
-        jsonWriter.flush();
     }
 
-    private NormalizedNodeWriter createNormalizedNodeWriter(final InstanceIdentifierContext<DataSchemaNode> context,
+    private void writeChildren(final NormalizedNodeWriter nnWriter, final ContainerNode data) throws IOException {
+        for(final DataContainerChild<? extends PathArgument, ?> child : data.getValue()) {
+            nnWriter.write(child);
+        }
+    }
+
+    private NormalizedNodeWriter createNormalizedNodeWriter(final InstanceIdentifierContext<SchemaNode> context,
             final SchemaPath path, final JsonWriter jsonWriter) {
 
-        final DataSchemaNode schema = context.getSchemaNode();
+        final SchemaNode schema = context.getSchemaNode();
         final JSONCodecFactory codecs = getCodecFactory(context);
 
-        URI initialNs = null;
-        if(!schema.isAugmenting() && !(schema instanceof SchemaContext)) {
+        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);
         return NormalizedNodeWriter.forStreamWriter(streamWriter);
@@ -113,15 +142,9 @@ public class NormalizedNodeJsonBodyWriter implements MessageBodyWriter<Normalize
 
     }
 
-    private JSONCodecFactory getCodecFactory(final InstanceIdentifierContext context) {
+    private JSONCodecFactory getCodecFactory(final InstanceIdentifierContext<?> context) {
         // TODO: Performance: Cache JSON Codec factory and schema context
         return JSONCodecFactory.create(context.getSchemaContext());
     }
 
-    private void writeDataRoot(final NormalizedNodeWriter nnWriter, final ContainerNode data) throws IOException {
-        for(final DataContainerChild<? extends PathArgument, ?> child : data.getValue()) {
-            nnWriter.write(child);
-        }
-    }
-
 }