分布式服务架构学习（八）：实现自己的序列化工具引擎（七）-序列化protostuff实现

Myth丶恋晨 2022-05-17 07:04 227阅读 0赞

protostuff基于Google protobuf，其中，protostuff-runtime实现了无需预编译的Java Bean进行protobuf序列化/反序列化的能力。

对于仅适用Java语言，且无需跨语言的适用场景，protostuff继承了Google protobuf的高性能的同事免去了编写.proto文件的麻烦，是非常值得推荐的序列化/反序列化方案。

代码如下：

package ares.remoting.framework.serialization.serializer.impl;
    
    import ares.remoting.framework.serialization.serializer.ISerializer;
    import com.dyuproject.protostuff.LinkedBuffer;
    import com.dyuproject.protostuff.ProtostuffIOUtil;
    import com.dyuproject.protostuff.Schema;
    import com.dyuproject.protostuff.runtime.RuntimeSchema;
    
    import java.util.Map;
    import java.util.concurrent.ConcurrentHashMap;
    
    /**
     * @author fuss created on 18/7/23.
     * @version $Id$
     */
    public class ProtoStuffSerializer implements ISerializer {
    
    
        private static Map<Class<?>, Schema<?>> cachedSchema = new ConcurrentHashMap<Class<?>, Schema<?>>();
    
    
        @SuppressWarnings("unchecked")
        private static <T> Schema<T> getSchema(Class<T> cls) {
            Schema<T> schema = (Schema<T>) cachedSchema.get(cls);
            if (schema == null) {
                schema = RuntimeSchema.createFrom(cls);
                cachedSchema.put(cls, schema);
            }
            return schema;
        }
    
        @SuppressWarnings("unchecked")
        public <T> byte[] serialize(T obj) {
            Class<T> cls = (Class<T>) obj.getClass();
            LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE);
            try {
                Schema<T> schema = getSchema(cls);
                return ProtostuffIOUtil.toByteArray(obj, schema, buffer);
            } catch (Exception e) {
                throw new RuntimeException(e);
            } finally {
                buffer.clear();
            }
        }
    
        public <T> T deserialize(byte[] data, Class<T> cls) {
            try {
                T message = (T) cls.getConstructors()[0].newInstance();
                Schema<T> schema = getSchema(cls);
                ProtostuffIOUtil.mergeFrom(data, message, schema);
                return message;
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    
    
    }

maven依赖，代码如下：

<dependency>
                <groupId>com.dyuproject.protostuff</groupId>
                <artifactId>protostuff-core</artifactId>
                <version>1.0.9</version>
            </dependency>
            <dependency>
                <groupId>com.dyuproject.protostuff</groupId>
                <artifactId>protostuff-runtime</artifactId>
                <version>1.0.9</version>
            </dependency>