spring HttpLogging 源码
spring HttpLogging 代码
文件路径：/spring-web/src/main/java/org/springframework/http/HttpLogging.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.http;
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.HttpLogging" for HTTP
* related logging when "org.springframework.http" is not enabled but
* "org.springframework.web" is.
*
* <p>That means "org.springframework.web" enables all web logging including
* from lower level packages such as "org.springframework.http" and modules
* such as codecs from {@literal "spring-core"} when those are wrapped with
* {@link org.springframework.http.codec.EncoderHttpMessageWriter EncoderHttpMessageWriter} or
* {@link org.springframework.http.codec.DecoderHttpMessageReader DecoderHttpMessageReader}.
*
* <p>To see logging from the primary class loggers simply enable logging for
* "org.springframework.http" and "org.springframework.codec".
*
* @author Rossen Stoyanchev
* @since 5.1
* @see LogDelegateFactory
*/
public abstract class HttpLogging {
private static final Log fallbackLogger =
LogFactory.getLog("org.springframework.web." + HttpLogging.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
* "org.springframework.web.HttpLogging", 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
* it or to the 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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