1 files changed, 41 insertions, 0 deletions
diff --git a/framework/src/onos/core/common/src/main/java/org/onosproject/codec/impl/TopologyCodec.java b/framework/src/onos/core/common/src/main/java/org/onosproject/codec/impl/TopologyCodec.java
new file mode 100644
index 00000000..f6529eb5
--- /dev/null
+++ b/framework/src/onos/core/common/src/main/java/org/onosproject/codec/impl/TopologyCodec.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.codec.impl;
+
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.net.topology.Topology;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Topology JSON codec.
+ */
+public final class TopologyCodec extends JsonCodec<Topology> {
+
+    @Override
+    public ObjectNode encode(Topology topology, CodecContext context) {
+        checkNotNull(topology, "Topology cannot be null");
+
+        return context.mapper().createObjectNode()
+                .put("time", topology.time())
+                .put("devices", topology.deviceCount())
+                .put("links", topology.linkCount())
+                .put("clusters", topology.clusterCount());
+    }
+}