org.jboss.logging.Slf4jLocationAwareLogger Maven / Gradle / Ivy
Go to download
This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
*
* Copyright 2010 Red Hat, Inc.
*
* 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
*
* 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.jboss.logging;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.UndeclaredThrowableException;
import java.text.MessageFormat;
import org.slf4j.spi.LocationAwareLogger;
final class Slf4jLocationAwareLogger extends Logger {
private static final long serialVersionUID = 8685757928087758380L;
private static final Object[] EMPTY = new Object[0];
private static final boolean POST_1_6;
private static final Method LOG_METHOD;
static {
Method[] methods = LocationAwareLogger.class.getDeclaredMethods();
Method logMethod = null;
boolean post16 = false;
for (Method method : methods) {
if (method.getName().equals("log")) {
logMethod = method;
Class[] parameterTypes = method.getParameterTypes();
post16 = parameterTypes.length == 6;
}
}
if (logMethod == null) {
throw new NoSuchMethodError("Cannot find LocationAwareLogger.log() method");
}
POST_1_6 = post16;
LOG_METHOD = logMethod;
}
private final LocationAwareLogger logger;
Slf4jLocationAwareLogger(final String name, final LocationAwareLogger logger) {
super(name);
this.logger = logger;
}
public boolean isEnabled(final Level level) {
if (level != null) switch (level) {
case FATAL: return logger.isErrorEnabled();
case ERROR: return logger.isErrorEnabled();
case WARN: return logger.isWarnEnabled();
case INFO: return logger.isInfoEnabled();
case DEBUG: return logger.isDebugEnabled();
case TRACE: return logger.isTraceEnabled();
}
return true;
}
protected void doLog(final Level level, final String loggerClassName, final Object message, final Object[] parameters, final Throwable thrown) {
if (isEnabled(level)) {
final String text = parameters == null || parameters.length == 0 ? String.valueOf(message) : MessageFormat.format(String.valueOf(message), parameters);
doLog(logger, loggerClassName, translate(level), text, thrown);
}
}
protected void doLogf(final Level level, final String loggerClassName, final String format, final Object[] parameters, final Throwable thrown) {
if (isEnabled(level)) {
final String text = parameters == null ? String.format(format) : String.format(format, parameters);
doLog(logger, loggerClassName, translate(level), text, thrown);
}
}
private static void doLog(LocationAwareLogger logger, String className, int level, String text, Throwable thrown) {
try {
if (POST_1_6) {
LOG_METHOD.invoke(logger, null, className, Integer.valueOf(level), text, EMPTY, thrown);
} else {
LOG_METHOD.invoke(logger, null, className, Integer.valueOf(level), text, thrown);
}
} catch (InvocationTargetException e) {
try {
throw e.getCause();
} catch (RuntimeException ex) {
throw ex;
} catch (Error er) {
throw er;
} catch (Throwable throwable) {
throw new UndeclaredThrowableException(throwable);
}
} catch (IllegalAccessException e) {
throw new IllegalAccessError(e.getMessage());
}
}
private static int translate(Level level) {
if (level != null) switch (level) {
case FATAL:
case ERROR: return LocationAwareLogger.ERROR_INT;
case WARN: return LocationAwareLogger.WARN_INT;
case INFO: return LocationAwareLogger.INFO_INT;
case DEBUG: return LocationAwareLogger.DEBUG_INT;
case TRACE: return LocationAwareLogger.TRACE_INT;
}
return LocationAwareLogger.TRACE_INT;
}
}