| /* |
| * 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)); |
| } |
| |
| /** |
| * Creates a new Serializer instance from a KryoNamespace and some additional classes. |
| * |
| * @param namespace kryo namespace |
| * @param classes variable length array of classes to register |
| * @return Serializer instance |
| */ |
| static Serializer using(KryoNamespace namespace, Class<?>... classes) { |
| return using(Arrays.asList(namespace), classes); |
| } |
| |
| /** |
| * Creates a new Serializer instance from a list of KryoNamespaces and some additional classes. |
| * |
| * @param namespaces kryo namespaces |
| * @param classes variable length array of classes to register |
| * @return Serializer instance |
| */ |
| 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()); |
| } |
| } |