ONOS checkin based on commit tag e796610b1f721d02f9b0e213cf6f7790c10ecd60

Change-Id: Ife8810491034fe7becdba75dda20de4267bd15cd

1 files changed, 81 insertions, 0 deletions

diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/store/service/Serializer.java b/framework/src/onos/core/api/src/main/java/org/onosproject/store/service/Serializer.java
new file mode 100644
index 00000000..6245175f
--- /dev/null
+++ b/framework/src/onos/core/api/src/main/java/org/onosproject/store/service/Serializer.java
@@ -0,0 +1,81 @@
+/*
+ * 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.store.service;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.onlab.util.KryoNamespace;
+
+import com.google.common.collect.Lists;
+
+/**
+ * Interface for serialization of store artifacts.
+ */
+public interface Serializer {
+    /**
+     * Serialize the specified object.
+     * @param object object to serialize.
+     * @return serialized bytes.
+     * @param <T> encoded type
+     */
+    <T> byte[] encode(T object);
+
+    /**
+     * Deserialize the specified bytes.
+     * @param bytes byte array to deserialize.
+     * @return deserialized object.
+     * @param <T> decoded type
+     */
+    <T> T decode(byte[] bytes);
+
+    /**
+     * Creates a new Serializer instance from a KryoNamespace.
+     *
+     * @param kryo kryo namespace
+     * @return Serializer instance
+     */
+    static Serializer using(KryoNamespace kryo) {
+        return using(Arrays.asList(kryo));
+    }
+
+    static Serializer using(List<KryoNamespace> namespaces, Class<?>... classes) {
+        KryoNamespace.Builder builder = new KryoNamespace.Builder();
+        namespaces.forEach(builder::register);
+        Lists.newArrayList(classes).forEach(builder::register);
+        builder.register(MapEvent.class, MapEvent.Type.class, Versioned.class);
+        KryoNamespace namespace = builder.build();
+        return new Serializer() {
+            @Override
+            public <T> byte[] encode(T object) {
+                return namespace.serialize(object);
+            }
+
+            @Override
+            public <T> T decode(byte[] bytes) {
+                return namespace.deserialize(bytes);
+            }
+        };
+    }
+
+    static Serializer forTypes(Class<?>... classes) {
+        return using(KryoNamespace.newBuilder()
+                                  .register(classes)
+                                  .register(MapEvent.class, MapEvent.Type.class)
+                                  .build());
+    }
+}