/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 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
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* 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 org.apache.log4j.Logger;
import org.smallmind.scribe.pen.Appender;
import org.smallmind.scribe.pen.DefaultLogicalContext;
import org.smallmind.scribe.pen.Discriminator;
import org.smallmind.scribe.pen.Enhancer;
import org.smallmind.scribe.pen.Filter;
import org.smallmind.scribe.pen.Level;
import org.smallmind.scribe.pen.LogicalContext;
import org.smallmind.scribe.pen.Record;
import org.smallmind.scribe.pen.adapter.LoggerAdapter;
import org.smallmind.scribe.pen.probe.ProbeReport;
public class Log4JLoggerAdapter implements LoggerAdapter {
private Logger logger;
private ConcurrentLinkedQueue<Filter> filterList;
private ConcurrentLinkedQueue<Enhancer> enhancerList;
private boolean autoFillLogicalContext = false;
public Log4JLoggerAdapter (Logger logger) {
this.logger = logger;
logger.setAdditivity(false);
filterList = new ConcurrentLinkedQueue<Filter>();
enhancerList = new ConcurrentLinkedQueue<Enhancer>();
}
public String getName () {
return logger.getName();
}
public boolean getAutoFillLogicalContext () {
return autoFillLogicalContext;
}
public void setAutoFillLogicalContext (boolean autoFillLogicalContext) {
this.autoFillLogicalContext = autoFillLogicalContext;
}
public void addFilter (Filter filter) {
filterList.add(filter);
}
public void clearFilters () {
filterList.clear();
}
public void addAppender (Appender appender) {
logger.addAppender(new Log4JAppenderWrapper(appender));
}
public Appender removeAppender (Appender appender) {
return removeAppender(appender.getName());
}
public Appender removeAppender (String name) {
org.apache.log4j.Appender appender;
if ((appender = logger.getAppender(name)) != null) {
logger.removeAppender(name);
if (appender instanceof Log4JAppenderWrapper) {
return ((Log4JAppenderWrapper)appender).getInnerAppender();
}
else {
throw new UnsupportedOperationException("Appender can't be returned via this interface because it's Log4J native");
}
}
return null;
}
public void clearAppenders () {
logger.removeAllAppenders();
}
public void addEnhancer (Enhancer enhancer) {
enhancerList.add(enhancer);
}
public void clearEnhancers () {
enhancerList.clear();
}
public Level getLevel () {
return (logger.getLevel() == null) ? Level.INFO : Log4JLevelTranslator.getLevel(logger.getLevel());
}
public void setLevel (Level level) {
logger.setLevel(Log4JLevelTranslator.getLog4JLevel(level));
}
public void logMessage (Discriminator discriminator, Level level, Throwable throwable, String message, Object... args) {
Log4JRecordSubverter recordSubverter;
LogicalContext logicalContext;
if ((!level.equals(Level.OFF)) && getLevel().noGreater(level)) {
if ((logicalContext = willLog(discriminator, level)) != null) {
recordSubverter = new Log4JRecordSubverter(logger, discriminator, level, null, logicalContext, throwable, message, args);
enhanceRecord(recordSubverter.getRecord());
logger.callAppenders(recordSubverter);
}
}
}
public void logProbe (Discriminator discriminator, Level level, Throwable throwable, ProbeReport probeReport) {
Log4JRecordSubverter recordSubverter;
LogicalContext logicalContext;
if ((!level.equals(Level.OFF)) && getLevel().noGreater(level)) {
if ((logicalContext = willLog(discriminator, level)) != null) {
recordSubverter = new Log4JRecordSubverter(logger, discriminator, level, probeReport, logicalContext, throwable, (probeReport.getTitle() == null) ? "Probe Report" : probeReport.getTitle());
enhanceRecord(recordSubverter.getRecord());
logger.callAppenders(recordSubverter);
}
}
}
public void logMessage (Discriminator discriminator, Level level, Throwable throwable, Object object) {
Log4JRecordSubverter recordSubverter;
LogicalContext logicalContext;
if ((!level.equals(Level.OFF)) && getLevel().noGreater(level)) {
if ((logicalContext = willLog(discriminator, level)) != null) {
recordSubverter = new Log4JRecordSubverter(logger, discriminator, level, null, logicalContext, throwable, (object == null) ? null : object.toString());
enhanceRecord(recordSubverter.getRecord());
logger.callAppenders(recordSubverter);
}
}
}
private LogicalContext willLog (Discriminator discriminator, Level level) {
LogicalContext logicalContext;
Record filterRecord;
logicalContext = new DefaultLogicalContext();
if (getAutoFillLogicalContext()) {
logicalContext.fillIn();
}
if (!filterList.isEmpty()) {
filterRecord = new Log4JRecordSubverter(logger, discriminator, level, null, logicalContext, null, null).getRecord();
for (Filter filter : filterList) {
if (!filter.willLog(filterRecord)) {
return null;
}
}
}
return logicalContext;
}
private void enhanceRecord (Record record) {
for (Enhancer enhancer : enhancerList) {
enhancer.enhance(record);
}
}
}