spring DefaultLogbackConfiguration 源码
springboot DefaultLogbackConfiguration 代码
文件路径:/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/logback/DefaultLogbackConfiguration.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.logging.logback;
import java.nio.charset.Charset;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;
import ch.qos.logback.core.ConsoleAppender;
import ch.qos.logback.core.rolling.RollingFileAppender;
import ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy;
import ch.qos.logback.core.util.FileSize;
import ch.qos.logback.core.util.OptionHelper;
import org.springframework.boot.logging.LogFile;
/**
* Default logback configuration used by Spring Boot. Uses {@link LogbackConfigurator} to
* improve startup time. See also the {@code base.xml}, {@code defaults.xml},
* {@code console-appender.xml} and {@code file-appender.xml} files provided for classic
* {@code logback.xml} use.
*
* @author Phillip Webb
* @author Madhura Bhave
* @author Vedran Pavic
* @author Robert Thornton
* @author Scott Frederick
*/
class DefaultLogbackConfiguration {
private final LogFile logFile;
DefaultLogbackConfiguration(LogFile logFile) {
this.logFile = logFile;
}
void apply(LogbackConfigurator config) {
synchronized (config.getConfigurationLock()) {
defaults(config);
Appender<ILoggingEvent> consoleAppender = consoleAppender(config);
if (this.logFile != null) {
Appender<ILoggingEvent> fileAppender = fileAppender(config, this.logFile.toString());
config.root(Level.INFO, consoleAppender, fileAppender);
}
else {
config.root(Level.INFO, consoleAppender);
}
}
}
private void defaults(LogbackConfigurator config) {
config.conversionRule("clr", ColorConverter.class);
config.conversionRule("wex", WhitespaceThrowableProxyConverter.class);
config.conversionRule("wEx", ExtendedWhitespaceThrowableProxyConverter.class);
config.getContext().putProperty("CONSOLE_LOG_PATTERN", resolve(config, "${CONSOLE_LOG_PATTERN:-"
+ "%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) "
+ "%clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} "
+ "%clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"));
String defaultCharset = Charset.defaultCharset().name();
config.getContext().putProperty("CONSOLE_LOG_CHARSET",
resolve(config, "${CONSOLE_LOG_CHARSET:-" + defaultCharset + "}"));
config.getContext().putProperty("FILE_LOG_PATTERN", resolve(config, "${FILE_LOG_PATTERN:-"
+ "%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd'T'HH:mm:ss.SSSXXX}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] "
+ "%-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"));
config.getContext().putProperty("FILE_LOG_CHARSET",
resolve(config, "${FILE_LOG_CHARSET:-" + defaultCharset + "}"));
config.logger("org.apache.catalina.startup.DigesterFactory", Level.ERROR);
config.logger("org.apache.catalina.util.LifecycleBase", Level.ERROR);
config.logger("org.apache.coyote.http11.Http11NioProtocol", Level.WARN);
config.logger("org.apache.sshd.common.util.SecurityUtils", Level.WARN);
config.logger("org.apache.tomcat.util.net.NioSelectorPool", Level.WARN);
config.logger("org.eclipse.jetty.util.component.AbstractLifeCycle", Level.ERROR);
config.logger("org.hibernate.validator.internal.util.Version", Level.WARN);
config.logger("org.springframework.boot.actuate.endpoint.jmx", Level.WARN);
}
private Appender<ILoggingEvent> consoleAppender(LogbackConfigurator config) {
ConsoleAppender<ILoggingEvent> appender = new ConsoleAppender<>();
PatternLayoutEncoder encoder = new PatternLayoutEncoder();
encoder.setPattern(resolve(config, "${CONSOLE_LOG_PATTERN}"));
encoder.setCharset(resolveCharset(config, "${CONSOLE_LOG_CHARSET}"));
config.start(encoder);
appender.setEncoder(encoder);
config.appender("CONSOLE", appender);
return appender;
}
private Appender<ILoggingEvent> fileAppender(LogbackConfigurator config, String logFile) {
RollingFileAppender<ILoggingEvent> appender = new RollingFileAppender<>();
PatternLayoutEncoder encoder = new PatternLayoutEncoder();
encoder.setPattern(resolve(config, "${FILE_LOG_PATTERN}"));
encoder.setCharset(resolveCharset(config, "${FILE_LOG_CHARSET}"));
appender.setEncoder(encoder);
config.start(encoder);
appender.setFile(logFile);
setRollingPolicy(appender, config);
config.appender("FILE", appender);
return appender;
}
private void setRollingPolicy(RollingFileAppender<ILoggingEvent> appender, LogbackConfigurator config) {
SizeAndTimeBasedRollingPolicy<ILoggingEvent> rollingPolicy = new SizeAndTimeBasedRollingPolicy<>();
rollingPolicy.setContext(config.getContext());
rollingPolicy.setFileNamePattern(
resolve(config, "${LOGBACK_ROLLINGPOLICY_FILE_NAME_PATTERN:-${LOG_FILE}.%d{yyyy-MM-dd}.%i.gz}"));
rollingPolicy.setCleanHistoryOnStart(
resolveBoolean(config, "${LOGBACK_ROLLINGPOLICY_CLEAN_HISTORY_ON_START:-false}"));
rollingPolicy.setMaxFileSize(resolveFileSize(config, "${LOGBACK_ROLLINGPOLICY_MAX_FILE_SIZE:-10MB}"));
rollingPolicy.setTotalSizeCap(resolveFileSize(config, "${LOGBACK_ROLLINGPOLICY_TOTAL_SIZE_CAP:-0}"));
rollingPolicy.setMaxHistory(resolveInt(config, "${LOGBACK_ROLLINGPOLICY_MAX_HISTORY:-7}"));
appender.setRollingPolicy(rollingPolicy);
rollingPolicy.setParent(appender);
config.start(rollingPolicy);
}
private boolean resolveBoolean(LogbackConfigurator config, String val) {
return Boolean.parseBoolean(resolve(config, val));
}
private int resolveInt(LogbackConfigurator config, String val) {
return Integer.parseInt(resolve(config, val));
}
private FileSize resolveFileSize(LogbackConfigurator config, String val) {
return FileSize.valueOf(resolve(config, val));
}
private Charset resolveCharset(LogbackConfigurator config, String val) {
return Charset.forName(resolve(config, val));
}
private String resolve(LogbackConfigurator config, String val) {
return OptionHelper.substVars(val, config.getContext());
}
}
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