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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.logging.slf4j;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.message.Message;
import org.apache.logging.log4j.message.ParameterizedMessage;
import org.apache.logging.log4j.message.SimpleMessage;
import org.apache.logging.log4j.spi.ExtendedLogger;
import org.apache.logging.log4j.util.LoaderUtil;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
import org.slf4j.impl.StaticMarkerBinder;
import org.slf4j.spi.LocationAwareLogger;
/**
* SLF4J logger implementation that uses Log4j.
*/
public class Log4jLogger implements LocationAwareLogger, Serializable {
public static final String FQCN = Log4jLogger.class.getName();
private static final long serialVersionUID = 7869000638091304316L;
private static final Marker EVENT_MARKER = MarkerFactory.getMarker("EVENT");
private final boolean eventLogger;
private transient ExtendedLogger logger;
private final String name;
private transient EventDataConverter converter;
public Log4jLogger(final ExtendedLogger logger, final String name) {
this.logger = logger;
this.eventLogger = "EventLogger".equals(name);
this.name = name;
this.converter = createConverter();
}
@Override
public void trace(final String format) {
logger.logIfEnabled(FQCN, Level.TRACE, null, format);
}
@Override
public void trace(final String format, final Object o) {
logger.logIfEnabled(FQCN, Level.TRACE, null, format, o);
}
@Override
public void trace(final String format, final Object arg1, final Object arg2) {
logger.logIfEnabled(FQCN, Level.TRACE, null, format, arg1, arg2);
}
@Override
public void trace(final String format, final Object... args) {
logger.logIfEnabled(FQCN, Level.TRACE, null, format, args);
}
@Override
public void trace(final String format, final Throwable t) {
logger.logIfEnabled(FQCN, Level.TRACE, null, format, t);
}
@Override
public boolean isTraceEnabled() {
return logger.isEnabled(Level.TRACE, null, null);
}
@Override
public boolean isTraceEnabled(final Marker marker) {
return logger.isEnabled(Level.TRACE, getMarker(marker), null);
}
@Override
public void trace(final Marker marker, final String s) {
logger.logIfEnabled(FQCN, Level.TRACE, getMarker(marker), s);
}
@Override
public void trace(final Marker marker, final String s, final Object o) {
logger.logIfEnabled(FQCN, Level.TRACE, getMarker(marker), s, o);
}
@Override
public void trace(final Marker marker, final String s, final Object o, final Object o1) {
logger.logIfEnabled(FQCN, Level.TRACE, getMarker(marker), s, o, o1);
}
@Override
public void trace(final Marker marker, final String s, final Object... objects) {
logger.logIfEnabled(FQCN, Level.TRACE, getMarker(marker), s, objects);
}
@Override
public void trace(final Marker marker, final String s, final Throwable throwable) {
logger.logIfEnabled(FQCN, Level.TRACE, getMarker(marker), s, throwable);
}
@Override
public void debug(final String format) {
logger.logIfEnabled(FQCN, Level.DEBUG, null, format);
}
@Override
public void debug(final String format, final Object o) {
logger.logIfEnabled(FQCN, Level.DEBUG, null, format, o);
}
@Override
public void debug(final String format, final Object arg1, final Object arg2) {
logger.logIfEnabled(FQCN, Level.DEBUG, null, format, arg1, arg2);
}
@Override
public void debug(final String format, final Object... args) {
logger.logIfEnabled(FQCN, Level.DEBUG, null, format, args);
}
@Override
public void debug(final String format, final Throwable t) {
logger.logIfEnabled(FQCN, Level.DEBUG, null, format, t);
}
@Override
public boolean isDebugEnabled() {
return logger.isEnabled(Level.DEBUG, null, null);
}
@Override
public boolean isDebugEnabled(final Marker marker) {
return logger.isEnabled(Level.DEBUG, getMarker(marker), null);
}
@Override
public void debug(final Marker marker, final String s) {
logger.logIfEnabled(FQCN, Level.DEBUG, getMarker(marker), s);
}
@Override
public void debug(final Marker marker, final String s, final Object o) {
logger.logIfEnabled(FQCN, Level.DEBUG, getMarker(marker), s, o);
}
@Override
public void debug(final Marker marker, final String s, final Object o, final Object o1) {
logger.logIfEnabled(FQCN, Level.DEBUG, getMarker(marker), s, o, o1);
}
@Override
public void debug(final Marker marker, final String s, final Object... objects) {
logger.logIfEnabled(FQCN, Level.DEBUG, getMarker(marker), s, objects);
}
@Override
public void debug(final Marker marker, final String s, final Throwable throwable) {
logger.logIfEnabled(FQCN, Level.DEBUG, getMarker(marker), s, throwable);
}
@Override
public void info(final String format) {
logger.logIfEnabled(FQCN, Level.INFO, null, format);
}
@Override
public void info(final String format, final Object o) {
logger.logIfEnabled(FQCN, Level.INFO, null, format, o);
}
@Override
public void info(final String format, final Object arg1, final Object arg2) {
logger.logIfEnabled(FQCN, Level.INFO, null, format, arg1, arg2);
}
@Override
public void info(final String format, final Object... args) {
logger.logIfEnabled(FQCN, Level.INFO, null, format, args);
}
@Override
public void info(final String format, final Throwable t) {
logger.logIfEnabled(FQCN, Level.INFO, null, format, t);
}
@Override
public boolean isInfoEnabled() {
return logger.isEnabled(Level.INFO, null, null);
}
@Override
public boolean isInfoEnabled(final Marker marker) {
return logger.isEnabled(Level.INFO, getMarker(marker), null);
}
@Override
public void info(final Marker marker, final String s) {
logger.logIfEnabled(FQCN, Level.INFO, getMarker(marker), s);
}
@Override
public void info(final Marker marker, final String s, final Object o) {
logger.logIfEnabled(FQCN, Level.INFO, getMarker(marker), s, o);
}
@Override
public void info(final Marker marker, final String s, final Object o, final Object o1) {
logger.logIfEnabled(FQCN, Level.INFO, getMarker(marker), s, o, o1);
}
@Override
public void info(final Marker marker, final String s, final Object... objects) {
logger.logIfEnabled(FQCN, Level.INFO, getMarker(marker), s, objects);
}
@Override
public void info(final Marker marker, final String s, final Throwable throwable) {
logger.logIfEnabled(FQCN, Level.INFO, getMarker(marker), s, throwable);
}
@Override
public void warn(final String format) {
logger.logIfEnabled(FQCN, Level.WARN, null, format);
}
@Override
public void warn(final String format, final Object o) {
logger.logIfEnabled(FQCN, Level.WARN, null, format, o);
}
@Override
public void warn(final String format, final Object arg1, final Object arg2) {
logger.logIfEnabled(FQCN, Level.WARN, null, format, arg1, arg2);
}
@Override
public void warn(final String format, final Object... args) {
logger.logIfEnabled(FQCN, Level.WARN, null, format, args);
}
@Override
public void warn(final String format, final Throwable t) {
logger.logIfEnabled(FQCN, Level.WARN, null, format, t);
}
@Override
public boolean isWarnEnabled() {
return logger.isEnabled(Level.WARN, null, null);
}
@Override
public boolean isWarnEnabled(final Marker marker) {
return logger.isEnabled(Level.WARN, getMarker(marker), null);
}
@Override
public void warn(final Marker marker, final String s) {
logger.logIfEnabled(FQCN, Level.WARN, getMarker(marker), s);
}
@Override
public void warn(final Marker marker, final String s, final Object o) {
logger.logIfEnabled(FQCN, Level.WARN, getMarker(marker), s, o);
}
@Override
public void warn(final Marker marker, final String s, final Object o, final Object o1) {
logger.logIfEnabled(FQCN, Level.WARN, getMarker(marker), s, o, o1);
}
@Override
public void warn(final Marker marker, final String s, final Object... objects) {
logger.logIfEnabled(FQCN, Level.WARN, getMarker(marker), s, objects);
}
@Override
public void warn(final Marker marker, final String s, final Throwable throwable) {
logger.logIfEnabled(FQCN, Level.WARN, getMarker(marker), s, throwable);
}
@Override
public void error(final String format) {
logger.logIfEnabled(FQCN, Level.ERROR, null, format);
}
@Override
public void error(final String format, final Object o) {
logger.logIfEnabled(FQCN, Level.ERROR, null, format, o);
}
@Override
public void error(final String format, final Object arg1, final Object arg2) {
logger.logIfEnabled(FQCN, Level.ERROR, null, format, arg1, arg2);
}
@Override
public void error(final String format, final Object... args) {
logger.logIfEnabled(FQCN, Level.ERROR, null, format, args);
}
@Override
public void error(final String format, final Throwable t) {
logger.logIfEnabled(FQCN, Level.ERROR, null, format, t);
}
@Override
public boolean isErrorEnabled() {
return logger.isEnabled(Level.ERROR, null, null);
}
@Override
public boolean isErrorEnabled(final Marker marker) {
return logger.isEnabled(Level.ERROR, getMarker(marker), null);
}
@Override
public void error(final Marker marker, final String s) {
logger.logIfEnabled(FQCN, Level.ERROR, getMarker(marker), s);
}
@Override
public void error(final Marker marker, final String s, final Object o) {
logger.logIfEnabled(FQCN, Level.ERROR, getMarker(marker), s, o);
}
@Override
public void error(final Marker marker, final String s, final Object o, final Object o1) {
logger.logIfEnabled(FQCN, Level.ERROR, getMarker(marker), s, o, o1);
}
@Override
public void error(final Marker marker, final String s, final Object... objects) {
logger.logIfEnabled(FQCN, Level.ERROR, getMarker(marker), s, objects);
}
@Override
public void error(final Marker marker, final String s, final Throwable throwable) {
logger.logIfEnabled(FQCN, Level.ERROR, getMarker(marker), s, throwable);
}
@Override
public void log(final Marker marker, final String fqcn, final int level, final String message, final Object[] params, Throwable throwable) {
final Level log4jLevel = getLevel(level);
final org.apache.logging.log4j.Marker log4jMarker = getMarker(marker);
if (!logger.isEnabled(log4jLevel, log4jMarker, message, params)) {
return;
}
final Message msg;
if (eventLogger && marker != null && marker.contains(EVENT_MARKER) && converter != null) {
msg = converter.convertEvent(message, params, throwable);
} else if (params == null) {
msg = new SimpleMessage(message);
} else {
msg = new ParameterizedMessage(message, params, throwable);
if (throwable != null) {
throwable = msg.getThrowable();
}
}
logger.logMessage(fqcn, log4jLevel, log4jMarker, msg, throwable);
}
private static org.apache.logging.log4j.Marker getMarker(final Marker marker) {
if (marker == null) {
return null;
} else if (marker instanceof Log4jMarker) {
return ((Log4jMarker) marker).getLog4jMarker();
} else {
final Log4jMarkerFactory factory = (Log4jMarkerFactory) StaticMarkerBinder.SINGLETON.getMarkerFactory();
return ((Log4jMarker) factory.getMarker(marker)).getLog4jMarker();
}
}
@Override
public String getName() {
return name;
}
/**
* Always treat de-serialization as a full-blown constructor, by validating the final state of
* the de-serialized object.
*/
private void readObject(final ObjectInputStream aInputStream) throws ClassNotFoundException, IOException {
// always perform the default de-serialization first
aInputStream.defaultReadObject();
logger = LogManager.getContext().getLogger(name);
converter = createConverter();
}
/**
* This is the default implementation of writeObject. Customise if necessary.
*/
private void writeObject(final ObjectOutputStream aOutputStream) throws IOException {
// perform the default serialization for all non-transient, non-static fields
aOutputStream.defaultWriteObject();
}
private static EventDataConverter createConverter() {
try {
LoaderUtil.loadClass("org.slf4j.ext.EventData");
return new EventDataConverter();
} catch (final ClassNotFoundException cnfe) {
return null;
}
}
private static Level getLevel(final int i) {
switch (i) {
case TRACE_INT:
return Level.TRACE;
case DEBUG_INT:
return Level.DEBUG;
case INFO_INT:
return Level.INFO;
case WARN_INT:
return Level.WARN;
case ERROR_INT:
return Level.ERROR;
}
return Level.ERROR;
}
}
