spring DevToolsLogFactory 源码
springboot DevToolsLogFactory 代码
文件路径：/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/logger/DevToolsLogFactory.java
/*
* Copyright 2012-2022 the original author or authors.
*
* 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
*
* https://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.springframework.boot.devtools.logger;
import java.util.LinkedHashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.springframework.boot.context.event.ApplicationPreparedEvent;
import org.springframework.boot.logging.DeferredLog;
import org.springframework.context.ApplicationListener;
/**
* Devtools deferred logging support.
*
* @author Phillip Webb
* @since 2.1.0
*/
public final class DevToolsLogFactory {
private static final Map<Log, Class<?>> logs = new LinkedHashMap<>();
private DevToolsLogFactory() {
}
/**
* Get a {@link Log} instance for the specified source that will be automatically
* {@link DeferredLog#switchTo(Class) switched} when the
* {@link ApplicationPreparedEvent context is prepared}.
* @param source the source for logging
* @return a {@link DeferredLog} instance
*/
public static Log getLog(Class<?> source) {
synchronized (logs) {
Log log = new DeferredLog();
logs.put(log, source);
return log;
}
}
/**
* Listener used to log and switch when the context is ready.
*/
static class Listener implements ApplicationListener<ApplicationPreparedEvent> {
@Override
public void onApplicationEvent(ApplicationPreparedEvent event) {
synchronized (logs) {
logs.forEach((log, source) -> {
if (log instanceof DeferredLog deferredLog) {
deferredLog.switchTo(source);
}
});
logs.clear();
}
}
}
}
相关信息
相关文章
0
赞
- 所属分类： 后端技术
- 本文标签： Java Spring Spring Boot
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
7、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦