com.alibaba.nacos.client.utils.PreInitUtils Maven / Gradle / Ivy
/*
* Copyright 1999-2023 Alibaba Group Holding Ltd.
*
* Licensed 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 com.alibaba.nacos.client.utils;
import com.alibaba.nacos.client.auth.ram.utils.SpasAdapter;
import com.alibaba.nacos.common.utils.JacksonUtils;
/**
* Async do pre init to load some cost component.
*
*
* - JacksonUtil
* - SpasAdapter
*
*
* @author xiweng.yy
*/
public class PreInitUtils {
/**
* Async pre load cost component.
*/
@SuppressWarnings("PMD.AvoidManuallyCreateThreadRule")
public static void asyncPreLoadCostComponent() {
Thread preLoadThread = new Thread(() -> {
// Jackson util will init static {@code ObjectMapper}, which will cost hundreds milliseconds.
JacksonUtils.createEmptyJsonNode();
// Ram auth plugin will try to get credential from env and system when leak input identity by properties.
SpasAdapter.getAk();
});
preLoadThread.start();
}
}