com.qq.tars.rpc.protocol.proto.MethodCache Maven / Gradle / Ivy
/**
* Tencent is pleased to support the open source community by making Tars available.
*
* Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
*
* Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*
* 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 com.qq.tars.rpc.protocol.proto;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.concurrent.ConcurrentHashMap;
public class MethodCache {
private ConcurrentHashMap cache = new ConcurrentHashMap();
private static final MethodCache instance = new MethodCache();
public static MethodCache getInstance() {
return instance;
}
private MethodCache() {}
public Object parseFrom(Class clazz, byte[] data) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
Method method = this.cache.get(clazz);
if (method == null) {
method = clazz.getMethod("parseFrom", byte[].class);
method.setAccessible(true);
this.cache.putIfAbsent(clazz, method);
method = this.cache.get(clazz);
}
return method.invoke(null, data);
}
}