dubbo Fastjson2CreatorManager 源码

2022-10-20
浏览 (277)

dubbo Fastjson2CreatorManager 代码

文件路径：/dubbo-serialization/dubbo-serialization-fastjson2/src/main/java/org/apache/dubbo/common/serialize/fastjson2/Fastjson2CreatorManager.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.dubbo.common.serialize.fastjson2;

import org.apache.dubbo.rpc.model.FrameworkModel;
import org.apache.dubbo.rpc.model.ScopeClassLoaderListener;

import com.alibaba.fastjson2.JSONFactory;
import com.alibaba.fastjson2.reader.ObjectReaderCreatorASM;
import com.alibaba.fastjson2.writer.ObjectWriterCreatorASM;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public class Fastjson2CreatorManager implements ScopeClassLoaderListener<FrameworkModel> {

    /**
     * An empty classLoader used when classLoader is system classLoader. Prevent the NPE.
     */
    private static final ClassLoader SYSTEM_CLASSLOADER_KEY = new ClassLoader() {};

    private final Map<ClassLoader, ObjectReaderCreatorASM> readerMap = new ConcurrentHashMap<>();
    private final Map<ClassLoader, ObjectWriterCreatorASM> writerMap = new ConcurrentHashMap<>();

    public Fastjson2CreatorManager(FrameworkModel frameworkModel) {
        frameworkModel.addClassLoaderListener(this);
    }

    public void setCreator(ClassLoader classLoader) {
        if (classLoader == null) {
            classLoader = SYSTEM_CLASSLOADER_KEY;
        }
        JSONFactory.setContextReaderCreator(readerMap.computeIfAbsent(classLoader, ObjectReaderCreatorASM::new));
        JSONFactory.setContextWriterCreator(writerMap.computeIfAbsent(classLoader, ObjectWriterCreatorASM::new));
    }

    @Override
    public void onAddClassLoader(FrameworkModel scopeModel, ClassLoader classLoader) {
        // nop
    }

    @Override
    public void onRemoveClassLoader(FrameworkModel scopeModel, ClassLoader classLoader) {
        readerMap.remove(classLoader);
        writerMap.remove(classLoader);
    }
}

相关信息

dubbo 源码目录

相关文章

dubbo FastJson2ObjectInput 源码

dubbo FastJson2ObjectOutput 源码

dubbo FastJson2Serialization 源码

dubbo Fastjson2ScopeModelInitializer 源码

0 赞

所属分类： 后端技术
本文标签： Java
版权声明： 原创文章如转载，请注明本文链接: https://www.seaxiang.com/blog/1ff2e722be994355901ea008cbb3a193

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
6、 harmony 鸿蒙初识ArkTS语言
7、 golang
8、 flink kafka connector scan.startup.mode 的几个选项
9、 openharmony
10、 Vue中input框自动聚焦

Loading...