spring SimpLogging 源码
spring SimpLogging 代码
文件路径：/spring-messaging/src/main/java/org/springframework/messaging/simp/SimpLogging.java
/*
* Copyright 2002-2018 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.messaging.simp;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.log.LogDelegateFactory;
/**
* Holds the shared logger named "org.springframework.web.SimpLogging" to use
* for STOMP over WebSocket messaging when logging for
* "org.springframework.messaging.simp" is off but logging for
* "org.springframework.web" is on.
*
* <p>This makes it possible to enable all web related logging via
* "org.springframework.web" including logging from lower-level packages such as
* "org.springframework.messaging.simp".
*
* <p>To see logging from the primary classes where log messages originate from,
* simply enable logging for "org.springframework.messaging".
*
* @author Rossen Stoyanchev
* @since 5.1
* @see LogDelegateFactory
*/
public abstract class SimpLogging {
private static final Log fallbackLogger =
LogFactory.getLog("org.springframework.web." + SimpLogging.class.getSimpleName());
/**
* Create a primary logger for the given class and wrap it with a composite
* that delegates to it or to the fallback logger named
* "org.springframework.web.SimpLogging", if the primary is not enabled.
* @param primaryLoggerClass the class for the name of the primary logger
* @return the resulting composite logger
*/
public static Log forLogName(Class<?> primaryLoggerClass) {
Log primaryLogger = LogFactory.getLog(primaryLoggerClass);
return forLog(primaryLogger);
}
/**
* Wrap the given primary logger with a composite logger that delegates to
* either the primary or to the shared fallback logger
* "org.springframework.web.HttpLogging", if the primary is not enabled.
* @param primaryLogger the primary logger to use
* @return the resulting composite logger
*/
public static Log forLog(Log primaryLogger) {
return LogDelegateFactory.getCompositeLog(primaryLogger, fallbackLogger);
}
}
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