core/api/src/main/java/org/onlab/onos/codec/CodecService.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.onlab.onos.codec;

import java.util.Set;

/**
 * Service for registering and retrieving JSON codecs for various entities.
 */
public interface CodecService {

    /**
     * Returns the set of classes with currently registered codecs.
     *
     * @return set of entity classes
     */
    Set<Class<?>> getCodecs();

    /**
     * Returns the JSON codec for the specified entity class.
     *
     * @param entityClass entity class
     * @return JSON codec; null if no codec available for the class
     */
    JsonCodec getCodec(Class<?> entityClass);

    /**
     * Registers the specified JSON codec for the given entity class.
     *
     * @param entityClass entity class
     * @param codec       JSON codec
     */
    void registerCodec(Class<?> entityClass, JsonCodec codec);

    /**
     * Unregisters the JSON codec for the specified entity class.
     *
     * @param entityClass entity class
     */
    void unregisterCodec(Class<?> entityClass);

}