kafka_08_使用第三方工具序列化和反序列化

1. gradle依赖

// https://mvnrepository.com/artifact/io.protostuff/protostuff-core
compile group: 'io.protostuff', name: 'protostuff-core', version: '1.6.0'

// https://mvnrepository.com/artifact/io.protostuff/protostuff-runtime
compile group: 'io.protostuff', name: 'protostuff-runtime', version: '1.6.0'

2. 序列化类的编写

import com.ghq.kafka.entity.Company;
import io.protostuff.LinkedBuffer;
import io.protostuff.ProtostuffIOUtil;
import io.protostuff.Schema;
import io.protostuff.runtime.RuntimeSchema;
import org.apache.kafka.common.serialization.Serializer;

import java.util.Map;

public class ProtostuffSerializer implements Serializer {

    @Override
    public void configure(Map configs, boolean isKey) {

    }

    @Override
    public byte[] serialize(String topic, Company data) {
        if (data == null) {
            return null;
        }
        Schema schema = RuntimeSchema.getSchema(data.getClass());
        LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE);
        byte[] bytes = null;
        try {
            bytes  = ProtostuffIOUtil.toByteArray(data, schema, buffer);
        }catch (Exception e){

            e.printStackTrace();
        }finally {
            buffer.clear();
        }


        return bytes;
    }

    @Override
    public void close() {

    }
}

3. 反序列化类的编写

import com.ghq.kafka.entity.Company;
import io.protostuff.ProtostuffIOUtil;
import io.protostuff.Schema;
import io.protostuff.runtime.RuntimeSchema;
import org.apache.kafka.common.serialization.Deserializer;

import java.util.Map;

public class ProtostuffDeserializer implements Deserializer {
    @Override
    public void configure(Map configs, boolean isKey) {

    }

    @Override
    public Company deserialize(String topic, byte[] data) {
        if (data == null) {
            return null;
        }

        Schema schema = RuntimeSchema.getSchema(Company.class);

        Company company = new Company();

        ProtostuffIOUtil.mergeFrom(data, company, schema);
        return company;
    }

    @Override
    public void close() {

    }
}

如何使用？

参考：https://www.jianshu.com/p/35a432bcb006