org.springframework.integration.codec.kryo.AbstractKryoRegistrar.java Source code

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Here is the source code for org.springframework.integration.codec.kryo.AbstractKryoRegistrar.java

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/*
 * Copyright 2015-2016 the original author or authors.
 *
 * 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.springframework.integration.codec.kryo;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Registration;

/**
 * Base class for {@link KryoRegistrar} implementations.
 *
 * @author David Turanski
 * @since 4.2
 */
public abstract class AbstractKryoRegistrar implements KryoRegistrar {

    protected final static Kryo kryo = new Kryo();

    protected final Log log = LogFactory.getLog(this.getClass());

    @Override
    public void registerTypes(Kryo kryo) {
        for (Registration registration : getRegistrations()) {
            register(kryo, registration);
        }
    }

    /**
     * Subclasses implement this to get provided registrations.
     * @return a list of {@link Registration}
     */
    public abstract List<Registration> getRegistrations();

    private void register(Kryo kryo, Registration registration) {
        int id = registration.getId();

        Registration existing = kryo.getRegistration(id);

        if (existing != null) {
            throw new RuntimeException((String.format("registration already exists %s", existing)));
        }

        if (this.log.isInfoEnabled()) {
            this.log.info(String.format("registering %s with serializer %s", registration,
                    registration.getSerializer().getClass().getName()));
        }

        kryo.register(registration);
    }

}