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LogbackLoggingSystem.java
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LogbackLoggingSystem.java
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/*
* Copyright 2017-2020 original 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 io.micronaut.management.endpoint.loggers.impl;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import io.micronaut.context.annotation.Property;
import io.micronaut.context.annotation.Replaces;
import io.micronaut.context.annotation.Requires;
import io.micronaut.core.annotation.NonNull;
import io.micronaut.core.annotation.Nullable;
import io.micronaut.logging.LogLevel;
import io.micronaut.logging.impl.LogbackUtils;
import io.micronaut.management.endpoint.loggers.LoggerConfiguration;
import io.micronaut.management.endpoint.loggers.LoggersEndpoint;
import io.micronaut.management.endpoint.loggers.ManagedLoggingSystem;
import jakarta.inject.Inject;
import jakarta.inject.Singleton;
import org.slf4j.LoggerFactory;
import java.util.Collection;
import java.util.stream.Collectors;
/**
* An implementation of {@link ManagedLoggingSystem} that works with logback.
*
* @author Matthew Moss
* @since 1.0
*/
@Singleton
@Requires(beans = LoggersEndpoint.class)
@Requires(classes = ch.qos.logback.classic.LoggerContext.class)
@Replaces(io.micronaut.logging.impl.LogbackLoggingSystem.class)
public class LogbackLoggingSystem implements ManagedLoggingSystem, io.micronaut.logging.LoggingSystem {
private static final String DEFAULT_LOGBACK_LOCATION = "logback.xml";
private final String logbackXmlLocation;
/**
* @deprecated Use {@link LogbackLoggingSystem(String)} instead.
*/
@Deprecated
public LogbackLoggingSystem() {
this(null);
}
@Inject
public LogbackLoggingSystem(@Nullable @Property(name = "logger.config") String logbackXmlLocation) {
this.logbackXmlLocation = logbackXmlLocation != null ? logbackXmlLocation : DEFAULT_LOGBACK_LOCATION;
}
@Override
@NonNull
public Collection<LoggerConfiguration> getLoggers() {
return getLoggerContext()
.getLoggerList()
.stream()
.map(LogbackLoggingSystem::toLoggerConfiguration)
.collect(Collectors.toList());
}
@Override
@NonNull
public LoggerConfiguration getLogger(String name) {
return toLoggerConfiguration(getLoggerContext().getLogger(name));
}
@Override
public void setLogLevel(String name, LogLevel level) {
getLoggerContext().getLogger(name).setLevel(toLevel(level));
}
/**
* @return The logback {@link LoggerContext}
*/
private static LoggerContext getLoggerContext() {
return (LoggerContext) LoggerFactory.getILoggerFactory();
}
/**
* @param logger The logback {@link Logger} to convert
* @return The converted {@link LoggerConfiguration}
*/
private static LoggerConfiguration toLoggerConfiguration(Logger logger) {
return new LoggerConfiguration(
logger.getName(),
toLogLevel(logger.getLevel()),
toLogLevel(logger.getEffectiveLevel())
);
}
/**
* @param level The logback {@link Level} to convert
* @return The converted {@link io.micronaut.logging.LogLevel}
*/
private static LogLevel toLogLevel(Level level) {
if (level == null) {
return LogLevel.NOT_SPECIFIED;
} else {
return LogLevel.valueOf(level.toString());
}
}
/**
* @param logLevel The micronaut {@link io.micronaut.logging.LogLevel} to convert
* @return The converted logback {@link Level}
*/
private static Level toLevel(LogLevel logLevel) {
if (logLevel == LogLevel.NOT_SPECIFIED) {
return null;
} else {
return Level.valueOf(logLevel.name());
}
}
@Override
public void refresh() {
LoggerContext context = getLoggerContext();
context.reset();
LogbackUtils.configure(getClass().getClassLoader(), context, logbackXmlLocation);
}
}