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/*
* Copyright (c) 2007 through 2024 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* or .
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.scribe.ink.log4j;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.function.Supplier;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.Logger;
import org.smallmind.scribe.pen.Appender;
import org.smallmind.scribe.pen.DefaultLoggerContext;
import org.smallmind.scribe.pen.Enhancer;
import org.smallmind.scribe.pen.Filter;
import org.smallmind.scribe.pen.Level;
import org.smallmind.scribe.pen.LoggerContext;
import org.smallmind.scribe.pen.ParameterAwareRecord;
import org.smallmind.scribe.pen.Record;
import org.smallmind.scribe.pen.adapter.LoggerAdapter;
import org.smallmind.scribe.pen.adapter.ParameterAdapter;
import org.smallmind.scribe.pen.adapter.Parameters;
public class Log4JLoggerAdapter implements LoggerAdapter {
private final Logger logger;
private final ConcurrentLinkedQueue filterList;
private final ConcurrentLinkedQueue enhancerList;
private boolean autoFillLoggerContext = false;
public Log4JLoggerAdapter (Logger logger) {
this.logger = logger;
logger.setAdditive(false);
filterList = new ConcurrentLinkedQueue<>();
enhancerList = new ConcurrentLinkedQueue<>();
}
@Override
public String getName () {
return logger.getName();
}
@Override
public ParameterAdapter getParameterAdapter () {
return Parameters.getInstance();
}
@Override
public boolean getAutoFillLoggerContext () {
return autoFillLoggerContext;
}
@Override
public void setAutoFillLoggerContext (boolean autoFillLoggerContext) {
this.autoFillLoggerContext = autoFillLoggerContext;
}
@Override
public void addFilter (Filter filter) {
filterList.add(filter);
}
@Override
public void clearFilters () {
filterList.clear();
}
@Override
public void addAppender (Appender appender) {
logger.addAppender(new Log4JAppenderWrapper(appender));
}
@Override
public void clearAppenders () {
for (org.apache.logging.log4j.core.Appender appender : logger.getAppenders().values()) {
logger.removeAppender(appender);
}
}
@Override
public void addEnhancer (Enhancer enhancer) {
enhancerList.add(enhancer);
}
@Override
public void clearEnhancers () {
enhancerList.clear();
}
@Override
public Level getLevel () {
return (logger.getLevel() == null) ? Level.INFO : Log4JLevelTranslator.getLevel(logger.getLevel());
}
@Override
public void setLevel (Level level) {
logger.setLevel(Log4JLevelTranslator.getLog4JLevel(level));
}
@Override
public void logMessage (Level level, Throwable throwable, String message, Object... args) {
Log4JRecordSubverter recordSubverter;
LoggerContext loggerContext;
if ((!level.equals(Level.OFF)) && getLevel().noGreater(level)) {
if ((loggerContext = willLog(level)) != null) {
recordSubverter = new Log4JRecordSubverter(logger.getName(), logger.getClass().getCanonicalName(), level, loggerContext, throwable, message, args);
((ParameterAwareRecord)recordSubverter.getRecord()).setParameters(getParameterAdapter().getParameters());
enhanceRecord(recordSubverter.getRecord());
for (org.apache.logging.log4j.core.Appender appender : logger.getAppenders().values()) {
appender.append(recordSubverter);
}
}
}
}
@Override
public void logMessage (Level level, Throwable throwable, Object object) {
Log4JRecordSubverter recordSubverter;
LoggerContext loggerContext;
if ((!level.equals(Level.OFF)) && getLevel().noGreater(level)) {
if ((loggerContext = willLog(level)) != null) {
recordSubverter = new Log4JRecordSubverter(logger.getName(), logger.getClass().getCanonicalName(), level, loggerContext, throwable, (object == null) ? null : object.toString());
((ParameterAwareRecord)recordSubverter.getRecord()).setParameters(getParameterAdapter().getParameters());
enhanceRecord(recordSubverter.getRecord());
for (org.apache.logging.log4j.core.Appender appender : logger.getAppenders().values()) {
appender.append(recordSubverter);
}
}
}
}
@Override
public void logMessage (Level level, Throwable throwable, Supplier supplier) {
Log4JRecordSubverter recordSubverter;
LoggerContext loggerContext;
if ((!level.equals(Level.OFF)) && getLevel().noGreater(level)) {
if ((loggerContext = willLog(level)) != null) {
recordSubverter = new Log4JRecordSubverter(logger.getName(), logger.getClass().getCanonicalName(), level, loggerContext, throwable, (supplier == null) ? null : supplier.get());
((ParameterAwareRecord)recordSubverter.getRecord()).setParameters(getParameterAdapter().getParameters());
enhanceRecord(recordSubverter.getRecord());
for (org.apache.logging.log4j.core.Appender appender : logger.getAppenders().values()) {
appender.append(recordSubverter);
}
}
}
}
private LoggerContext willLog (Level level) {
LoggerContext loggerContext;
Record filterRecord;
loggerContext = new DefaultLoggerContext();
if (getAutoFillLoggerContext()) {
loggerContext.fillIn();
}
if (!filterList.isEmpty()) {
filterRecord = new Log4JRecordSubverter(logger.getName(), logger.getClass().getCanonicalName(), level, loggerContext, null, null).getRecord();
for (Filter filter : filterList) {
if (!filter.willLog(filterRecord)) {
return null;
}
}
}
return loggerContext;
}
private void enhanceRecord (Record record) {
for (Enhancer enhancer : enhancerList) {
enhancer.enhance(record);
}
}
}
