如何将获取的Google cloud数据存储实体(com.google.cloud.datastore.Entity)映射到自定义Java对象

import com.google.cloud.datastore.Datastore;
import com.google.cloud.datastore.DatastoreOptions;
import com.google.cloud.datastore.Entity;
import com.google.cloud.datastore.Key;
import com.google.cloud.datastore.KeyFactory;

public class EntityMapper {
    private Datastore datastore;
    private KeyFactory keyFactory;

    public EntityMapper() {
        // 创建Google Cloud Datastore客户端
        datastore = DatastoreOptions.getDefaultInstance().getService();
        // 创建KeyFactory用于创建实体的键
        keyFactory = datastore.newKeyFactory();
    }

    public MyCustomObject mapEntityToCustomObject(Entity entity) {
        MyCustomObject customObject = new MyCustomObject();

        // 从实体中读取属性并设置到自定义Java对象中
        customObject.setId(entity.getKey().getId());
        customObject.setName(entity.getString("name"));
        customObject.setAge(entity.getLong("age"));

        return customObject;
    }

    public static void main(String[] args) {
        EntityMapper entityMapper = new EntityMapper();

        // 获取Google Cloud数据存储实体
        Key key = entityMapper.keyFactory().setKind("MyEntity").newKey("entityId");
        Entity entity = entityMapper.datastore().get(key);

        // 将实体映射到自定义Java对象
        MyCustomObject customObject = entityMapper.mapEntityToCustomObject(entity);

        // 使用映射后的自定义Java对象进行进一步的业务逻辑处理或者展示
        System.out.println(customObject.getName());
        System.out.println(customObject.getAge());
    }
}