org.jboss.logging.Slf4jLocationAwareLogger Maven / Gradle / Ivy
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/*
* JBoss, Home of Professional Open Source.
*
* Copyright 2023 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;
}
}