org.apache.dubbo.common.serialization.ClassHolder Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dubbo Show documentation

The all in one project of dubbo

The newest version!

/*
 * 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.serialization;

import org.apache.dubbo.common.utils.ConcurrentHashSet;

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

public class ClassHolder {
    private final Map>> classCache = new ConcurrentHashMap<>();

    public void storeClass(Class clazz) {
        classCache
                .computeIfAbsent(clazz.getName(), k -> new ConcurrentHashSet<>())
                .add(clazz);
    }

    public Class loadClass(String className, ClassLoader classLoader) {
        Set> classList = classCache.get(className);
        if (classList == null) {
            return null;
        }
        for (Class clazz : classList) {
            if (classLoader.equals(clazz.getClassLoader())) {
                return clazz;
            }
        }
        return null;
    }
}