Source Code for SLF4J 1.7.31 Bridge to JDK
SLF4J Bridge to JDK is a binding bridge that
implements the SLF4J API with JDK logging library.
Here is the source code for SLF4J Bridge to JDK. You can download its pre-compiled version slf4j-jdk14-1.7.31.jar at SLF4J Download Website.
✍: FYIcenter.com
⏎ org/slf4j/impl/JDK14LoggerAdapter.java
/**
* Copyright (c) 2004-2011 QOS.ch
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package org.slf4j.impl;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import org.slf4j.Logger;
import org.slf4j.Marker;
import org.slf4j.event.EventConstants;
import org.slf4j.event.LoggingEvent;
import org.slf4j.helpers.FormattingTuple;
import org.slf4j.helpers.MarkerIgnoringBase;
import org.slf4j.helpers.MessageFormatter;
import org.slf4j.spi.LocationAwareLogger;
/**
* A wrapper over {@link java.util.logging.Logger java.util.logging.Logger} in
* conformity with the {@link Logger} interface. Note that the logging levels
* mentioned in this class refer to those defined in the java.util.logging
* package.
*
* @author Ceki Gülcü
* @author Peter Royal
*/
public final class JDK14LoggerAdapter extends MarkerIgnoringBase implements LocationAwareLogger {
private static final long serialVersionUID = -8053026990503422791L;
transient final java.util.logging.Logger logger;
// WARN: JDK14LoggerAdapter constructor should have only package access so
// that only JDK14LoggerFactory be able to create one.
JDK14LoggerAdapter(java.util.logging.Logger logger) {
this.logger = logger;
this.name = logger.getName();
}
/**
* Is this logger instance enabled for the FINEST level?
*
* @return True if this Logger is enabled for level FINEST, false otherwise.
*/
public boolean isTraceEnabled() {
return logger.isLoggable(Level.FINEST);
}
/**
* Log a message object at level FINEST.
*
* @param msg
* - the message object to be logged
*/
public void trace(String msg) {
if (logger.isLoggable(Level.FINEST)) {
log(SELF, Level.FINEST, msg, null);
}
}
/**
* Log a message at level FINEST according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for level FINEST.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
public void trace(String format, Object arg) {
if (logger.isLoggable(Level.FINEST)) {
FormattingTuple ft = MessageFormatter.format(format, arg);
log(SELF, Level.FINEST, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level FINEST according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the FINEST level.
* </p>
*
* @param format
* the format string
* @param arg1
* the first argument
* @param arg2
* the second argument
*/
public void trace(String format, Object arg1, Object arg2) {
if (logger.isLoggable(Level.FINEST)) {
FormattingTuple ft = MessageFormatter.format(format, arg1, arg2);
log(SELF, Level.FINEST, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level FINEST according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the FINEST level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
public void trace(String format, Object... argArray) {
if (logger.isLoggable(Level.FINEST)) {
FormattingTuple ft = MessageFormatter.arrayFormat(format, argArray);
log(SELF, Level.FINEST, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log an exception (throwable) at level FINEST with an accompanying message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
public void trace(String msg, Throwable t) {
if (logger.isLoggable(Level.FINEST)) {
log(SELF, Level.FINEST, msg, t);
}
}
/**
* Is this logger instance enabled for the FINE level?
*
* @return True if this Logger is enabled for level FINE, false otherwise.
*/
public boolean isDebugEnabled() {
return logger.isLoggable(Level.FINE);
}
/**
* Log a message object at level FINE.
*
* @param msg
* - the message object to be logged
*/
public void debug(String msg) {
if (logger.isLoggable(Level.FINE)) {
log(SELF, Level.FINE, msg, null);
}
}
/**
* Log a message at level FINE according to the specified format and argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for level FINE.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
public void debug(String format, Object arg) {
if (logger.isLoggable(Level.FINE)) {
FormattingTuple ft = MessageFormatter.format(format, arg);
log(SELF, Level.FINE, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level FINE according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the FINE level.
* </p>
*
* @param format
* the format string
* @param arg1
* the first argument
* @param arg2
* the second argument
*/
public void debug(String format, Object arg1, Object arg2) {
if (logger.isLoggable(Level.FINE)) {
FormattingTuple ft = MessageFormatter.format(format, arg1, arg2);
log(SELF, Level.FINE, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level FINE according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the FINE level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
public void debug(String format, Object... argArray) {
if (logger.isLoggable(Level.FINE)) {
FormattingTuple ft = MessageFormatter.arrayFormat(format, argArray);
log(SELF, Level.FINE, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log an exception (throwable) at level FINE with an accompanying message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
public void debug(String msg, Throwable t) {
if (logger.isLoggable(Level.FINE)) {
log(SELF, Level.FINE, msg, t);
}
}
/**
* Is this logger instance enabled for the INFO level?
*
* @return True if this Logger is enabled for the INFO level, false otherwise.
*/
public boolean isInfoEnabled() {
return logger.isLoggable(Level.INFO);
}
/**
* Log a message object at the INFO level.
*
* @param msg
* - the message object to be logged
*/
public void info(String msg) {
if (logger.isLoggable(Level.INFO)) {
log(SELF, Level.INFO, msg, null);
}
}
/**
* Log a message at level INFO according to the specified format and argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the INFO level.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
public void info(String format, Object arg) {
if (logger.isLoggable(Level.INFO)) {
FormattingTuple ft = MessageFormatter.format(format, arg);
log(SELF, Level.INFO, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at the INFO level according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the INFO level.
* </p>
*
* @param format
* the format string
* @param arg1
* the first argument
* @param arg2
* the second argument
*/
public void info(String format, Object arg1, Object arg2) {
if (logger.isLoggable(Level.INFO)) {
FormattingTuple ft = MessageFormatter.format(format, arg1, arg2);
log(SELF, Level.INFO, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level INFO according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the INFO level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
public void info(String format, Object... argArray) {
if (logger.isLoggable(Level.INFO)) {
FormattingTuple ft = MessageFormatter.arrayFormat(format, argArray);
log(SELF, Level.INFO, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log an exception (throwable) at the INFO level with an accompanying
* message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
public void info(String msg, Throwable t) {
if (logger.isLoggable(Level.INFO)) {
log(SELF, Level.INFO, msg, t);
}
}
/**
* Is this logger instance enabled for the WARNING level?
*
* @return True if this Logger is enabled for the WARNING level, false
* otherwise.
*/
public boolean isWarnEnabled() {
return logger.isLoggable(Level.WARNING);
}
/**
* Log a message object at the WARNING level.
*
* @param msg
* - the message object to be logged
*/
public void warn(String msg) {
if (logger.isLoggable(Level.WARNING)) {
log(SELF, Level.WARNING, msg, null);
}
}
/**
* Log a message at the WARNING level according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the WARNING level.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
public void warn(String format, Object arg) {
if (logger.isLoggable(Level.WARNING)) {
FormattingTuple ft = MessageFormatter.format(format, arg);
log(SELF, Level.WARNING, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at the WARNING level according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the WARNING level.
* </p>
*
* @param format
* the format string
* @param arg1
* the first argument
* @param arg2
* the second argument
*/
public void warn(String format, Object arg1, Object arg2) {
if (logger.isLoggable(Level.WARNING)) {
FormattingTuple ft = MessageFormatter.format(format, arg1, arg2);
log(SELF, Level.WARNING, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level WARNING according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the WARNING level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
public void warn(String format, Object... argArray) {
if (logger.isLoggable(Level.WARNING)) {
FormattingTuple ft = MessageFormatter.arrayFormat(format, argArray);
log(SELF, Level.WARNING, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log an exception (throwable) at the WARNING level with an accompanying
* message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
public void warn(String msg, Throwable t) {
if (logger.isLoggable(Level.WARNING)) {
log(SELF, Level.WARNING, msg, t);
}
}
/**
* Is this logger instance enabled for level SEVERE?
*
* @return True if this Logger is enabled for level SEVERE, false otherwise.
*/
public boolean isErrorEnabled() {
return logger.isLoggable(Level.SEVERE);
}
/**
* Log a message object at the SEVERE level.
*
* @param msg
* - the message object to be logged
*/
public void error(String msg) {
if (logger.isLoggable(Level.SEVERE)) {
log(SELF, Level.SEVERE, msg, null);
}
}
/**
* Log a message at the SEVERE level according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the SEVERE level.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
public void error(String format, Object arg) {
if (logger.isLoggable(Level.SEVERE)) {
FormattingTuple ft = MessageFormatter.format(format, arg);
log(SELF, Level.SEVERE, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at the SEVERE level according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the SEVERE level.
* </p>
*
* @param format
* the format string
* @param arg1
* the first argument
* @param arg2
* the second argument
*/
public void error(String format, Object arg1, Object arg2) {
if (logger.isLoggable(Level.SEVERE)) {
FormattingTuple ft = MessageFormatter.format(format, arg1, arg2);
log(SELF, Level.SEVERE, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log a message at level SEVERE according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the SEVERE level.
* </p>
*
* @param format
* the format string
* @param arguments
* an array of arguments
*/
public void error(String format, Object... arguments) {
if (logger.isLoggable(Level.SEVERE)) {
FormattingTuple ft = MessageFormatter.arrayFormat(format, arguments);
log(SELF, Level.SEVERE, ft.getMessage(), ft.getThrowable());
}
}
/**
* Log an exception (throwable) at the SEVERE level with an accompanying
* message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
public void error(String msg, Throwable t) {
if (logger.isLoggable(Level.SEVERE)) {
log(SELF, Level.SEVERE, msg, t);
}
}
/**
* Log the message at the specified level with the specified throwable if any.
* This method creates a LogRecord and fills in caller date before calling
* this instance's JDK14 logger.
*
* See bug report #13 for more details.
*
* @param level
* @param msg
* @param t
*/
private void log(String callerFQCN, Level level, String msg, Throwable t) {
// millis and thread are filled by the constructor
LogRecord record = new LogRecord(level, msg);
record.setLoggerName(getName());
record.setThrown(t);
// Note: parameters in record are not set because SLF4J only
// supports a single formatting style
fillCallerData(callerFQCN, record);
logger.log(record);
}
static String SELF = JDK14LoggerAdapter.class.getName();
static String SUPER = MarkerIgnoringBase.class.getName();
/**
* Fill in caller data if possible.
*
* @param record
* The record to update
*/
final private void fillCallerData(String callerFQCN, LogRecord record) {
StackTraceElement[] steArray = new Throwable().getStackTrace();
int selfIndex = -1;
for (int i = 0; i < steArray.length; i++) {
final String className = steArray[i].getClassName();
if (className.equals(callerFQCN) || className.equals(SUPER)) {
selfIndex = i;
break;
}
}
int found = -1;
for (int i = selfIndex + 1; i < steArray.length; i++) {
final String className = steArray[i].getClassName();
if (!(className.equals(callerFQCN) || className.equals(SUPER))) {
found = i;
break;
}
}
if (found != -1) {
StackTraceElement ste = steArray[found];
// setting the class name has the side effect of setting
// the needToInferCaller variable to false.
record.setSourceClassName(ste.getClassName());
record.setSourceMethodName(ste.getMethodName());
}
}
public void log(Marker marker, String callerFQCN, int level, String message, Object[] argArray, Throwable t) {
Level julLevel = slf4jLevelIntToJULLevel(level);
// the logger.isLoggable check avoids the unconditional
// construction of location data for disabled log
// statements. As of 2008-07-31, callers of this method
// do not perform this check. See also
// http://jira.qos.ch/browse/SLF4J-81
if (logger.isLoggable(julLevel)) {
log(callerFQCN, julLevel, message, t);
}
}
private Level slf4jLevelIntToJULLevel(int slf4jLevelInt) {
Level julLevel;
switch (slf4jLevelInt) {
case LocationAwareLogger.TRACE_INT:
julLevel = Level.FINEST;
break;
case LocationAwareLogger.DEBUG_INT:
julLevel = Level.FINE;
break;
case LocationAwareLogger.INFO_INT:
julLevel = Level.INFO;
break;
case LocationAwareLogger.WARN_INT:
julLevel = Level.WARNING;
break;
case LocationAwareLogger.ERROR_INT:
julLevel = Level.SEVERE;
break;
default:
throw new IllegalStateException("Level number " + slf4jLevelInt + " is not recognized.");
}
return julLevel;
}
/**
* @since 1.7.15
*/
public void log(LoggingEvent event) {
Level julLevel = slf4jLevelIntToJULLevel(event.getLevel().toInt());
if (logger.isLoggable(julLevel)) {
LogRecord record = eventToRecord(event, julLevel);
logger.log(record);
}
}
private LogRecord eventToRecord(LoggingEvent event, Level julLevel) {
String format = event.getMessage();
Object[] arguments = event.getArgumentArray();
FormattingTuple ft = MessageFormatter.arrayFormat(format, arguments);
if (ft.getThrowable() != null && event.getThrowable() != null) {
throw new IllegalArgumentException("both last element in argument array and last argument are of type Throwable");
}
Throwable t = event.getThrowable();
if (ft.getThrowable() != null) {
t = ft.getThrowable();
throw new IllegalStateException("fix above code");
}
LogRecord record = new LogRecord(julLevel, ft.getMessage());
record.setLoggerName(event.getLoggerName());
record.setMillis(event.getTimeStamp());
record.setSourceClassName(EventConstants.NA_SUBST);
record.setSourceMethodName(EventConstants.NA_SUBST);
record.setThrown(t);
return record;
}
}
⏎ org/slf4j/impl/JDK14LoggerAdapter.java
Or download all of them as a single archive file:
File name: slf4j-jdk14-1.7.31-sources.jar File size: 11116 bytes Release date: 2021-06-17 Download
⇒ Source Code for SLF4J 1.7.31 Bridge to Log4J 1.3
⇐ Source Code for SLF4J 1.7.31 Simple Logging
2023-04-02, 864👍, 2💬
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