com.alibaba.dubbo.common.serialize.support.kryo.CompatibleKryo Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dubbo2 Show documentation

The all in one project of dubbo2

The newest version!

/**
 * Copyright 1999-2014 dangdang.com.
 *
 * 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 com.alibaba.dubbo.common.serialize.support.kryo;

import com.alibaba.dubbo.common.logger.Logger;
import com.alibaba.dubbo.common.logger.LoggerFactory;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.serializers.JavaSerializer;

/**
 * @author lishen
 */
public class CompatibleKryo extends Kryo {

    private static final Logger logger = LoggerFactory.getLogger(CompatibleKryo.class);

    @Override
    public Serializer getDefaultSerializer(Class type) {
        if (type == null) {
            throw new IllegalArgumentException("type cannot be null.");
        }

        if (!type.isArray() && !ReflectionUtils.checkZeroArgConstructor(type)) {
            if (logger.isWarnEnabled()) {
                logger.warn(type + " has no zero-arg constructor and this will affect the serialization performance");
            }
            return new JavaSerializer();
        }
        return super.getDefaultSerializer(type);
    }
}