dubbo SerializableClassRegistry 源码

  • 2022-10-20
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dubbo SerializableClassRegistry 代码

文件路径:/dubbo-serialization/dubbo-serialization-api/src/main/java/org/apache/dubbo/common/serialize/support/SerializableClassRegistry.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.apache.dubbo.common.serialize.support;

import java.util.HashMap;
import java.util.Map;

/**
 * Provide a unified serialization registry, this class used for {@code dubbo-serialization-fst}
 * and {@code dubbo-serialization-kryo}, it will register some classes at startup time (for example {@link AbstractKryoFactory#create})
 */
public abstract class SerializableClassRegistry {


    private static final Map<Class<?>, Object> REGISTRATIONS = new HashMap<>();

    /**
     * only supposed to be called at startup time
     *
     * @param clazz object type
     */
    public static void registerClass(Class<?> clazz) {
        registerClass(clazz, null);
    }

    /**
     * only supposed to be called at startup time
     *
     * @param clazz object type
     * @param serializer object serializer
     */
    public static void registerClass(Class<?> clazz, Object serializer) {
        if (clazz == null) {
            throw new IllegalArgumentException("Class registered to kryo cannot be null!");
        }
        REGISTRATIONS.put(clazz, serializer);
    }

    /**
     * get registered classes
     *
     * @return class serializer
     * */
    public static Map<Class<?>, Object> getRegisteredClasses() {
        return REGISTRATIONS;
    }
}

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