SLF4J API Source Code
SLF4J API is a simple API that allows to plug in any desired logging library
at deployment time.
Here is the source code for SLF4J API 2.0.4. You can download its pre-compiled version slf4j-api-2.0.4.jar at SLF4J Download Website.
✍: FYIcenter.com
⏎ org/slf4j/helpers/AbstractLogger.java
/**
* Copyright (c) 2004-2019 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.helpers;
import java.io.ObjectStreamException;
import java.io.Serializable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.Marker;
import org.slf4j.event.Level;
/**
* An abstract implementation which delegates actual logging work to the
* {@link #handleNormalizedLoggingCall(Level, Marker, String, Object[], Throwable)} method.
*
* @author Ceki Gülcü
* @since 2.0
*/
public abstract class AbstractLogger implements Logger, Serializable {
private static final long serialVersionUID = -2529255052481744503L;
protected String name;
public String getName() {
return name;
}
/**
* Replace this instance with a homonymous (same name) logger returned
* by LoggerFactory. Note that this method is only called during
* deserialization.
*
* <p>
* This approach will work well if the desired ILoggerFactory is the one
* referenced by {@link org.slf4j.LoggerFactory} However, if the user manages its logger hierarchy
* through a different (non-static) mechanism, e.g. dependency injection, then
* this approach would be mostly counterproductive.
*
* @return logger with same name as returned by LoggerFactory
* @throws ObjectStreamException
*/
protected Object readResolve() throws ObjectStreamException {
// using getName() instead of this.name works even for
// NOPLogger
return LoggerFactory.getLogger(getName());
}
@Override
public void trace(String msg) {
if (isTraceEnabled()) {
handle_0ArgsCall(Level.TRACE, null, msg, null);
}
}
@Override
public void trace(String format, Object arg) {
if (isTraceEnabled()) {
handle_1ArgsCall(Level.TRACE, null, format, arg);
}
}
@Override
public void trace(String format, Object arg1, Object arg2) {
if (isTraceEnabled()) {
handle2ArgsCall(Level.TRACE, null, format, arg1, arg2);
}
}
@Override
public void trace(String format, Object... arguments) {
if (isTraceEnabled()) {
handleArgArrayCall(Level.TRACE, null, format, arguments);
}
}
@Override
public void trace(String msg, Throwable t) {
if (isTraceEnabled()) {
handle_0ArgsCall(Level.TRACE, null, msg, t);
}
}
@Override
public void trace(Marker marker, String msg) {
if (isTraceEnabled(marker)) {
handle_0ArgsCall(Level.TRACE, marker, msg, null);
}
}
@Override
public void trace(Marker marker, String format, Object arg) {
if (isTraceEnabled(marker)) {
handle_1ArgsCall(Level.TRACE, marker, format, arg);
}
}
@Override
public void trace(Marker marker, String format, Object arg1, Object arg2) {
if (isTraceEnabled(marker)) {
handle2ArgsCall(Level.TRACE, marker, format, arg1, arg2);
}
}
@Override
public void trace(Marker marker, String format, Object... argArray) {
if (isTraceEnabled(marker)) {
handleArgArrayCall(Level.TRACE, marker, format, argArray);
}
}
public void trace(Marker marker, String msg, Throwable t) {
if (isTraceEnabled(marker)) {
handle_0ArgsCall(Level.TRACE, marker, msg, t);
}
}
public void debug(String msg) {
if (isDebugEnabled()) {
handle_0ArgsCall(Level.DEBUG, null, msg, null);
}
}
public void debug(String format, Object arg) {
if (isDebugEnabled()) {
handle_1ArgsCall(Level.DEBUG, null, format, arg);
}
}
public void debug(String format, Object arg1, Object arg2) {
if (isDebugEnabled()) {
handle2ArgsCall(Level.DEBUG, null, format, arg1, arg2);
}
}
public void debug(String format, Object... arguments) {
if (isDebugEnabled()) {
handleArgArrayCall(Level.DEBUG, null, format, arguments);
}
}
public void debug(String msg, Throwable t) {
if (isDebugEnabled()) {
handle_0ArgsCall(Level.DEBUG, null, msg, t);
}
}
public void debug(Marker marker, String msg) {
if (isDebugEnabled(marker)) {
handle_0ArgsCall(Level.DEBUG, marker, msg, null);
}
}
public void debug(Marker marker, String format, Object arg) {
if (isDebugEnabled(marker)) {
handle_1ArgsCall(Level.DEBUG, marker, format, arg);
}
}
public void debug(Marker marker, String format, Object arg1, Object arg2) {
if (isDebugEnabled(marker)) {
handle2ArgsCall(Level.DEBUG, marker, format, arg1, arg2);
}
}
public void debug(Marker marker, String format, Object... arguments) {
if (isDebugEnabled(marker)) {
handleArgArrayCall(Level.DEBUG, marker, format, arguments);
}
}
public void debug(Marker marker, String msg, Throwable t) {
if (isDebugEnabled(marker)) {
handle_0ArgsCall(Level.DEBUG, marker, msg, t);
}
}
public void info(String msg) {
if (isInfoEnabled()) {
handle_0ArgsCall(Level.INFO, null, msg, null);
}
}
public void info(String format, Object arg) {
if (isInfoEnabled()) {
handle_1ArgsCall(Level.INFO, null, format, arg);
}
}
public void info(String format, Object arg1, Object arg2) {
if (isInfoEnabled()) {
handle2ArgsCall(Level.INFO, null, format, arg1, arg2);
}
}
public void info(String format, Object... arguments) {
if (isInfoEnabled()) {
handleArgArrayCall(Level.INFO, null, format, arguments);
}
}
public void info(String msg, Throwable t) {
if (isInfoEnabled()) {
handle_0ArgsCall(Level.INFO, null, msg, t);
}
}
public void info(Marker marker, String msg) {
if (isInfoEnabled(marker)) {
handle_0ArgsCall(Level.INFO, marker, msg, null);
}
}
public void info(Marker marker, String format, Object arg) {
if (isInfoEnabled(marker)) {
handle_1ArgsCall(Level.INFO, marker, format, arg);
}
}
public void info(Marker marker, String format, Object arg1, Object arg2) {
if (isInfoEnabled(marker)) {
handle2ArgsCall(Level.INFO, marker, format, arg1, arg2);
}
}
public void info(Marker marker, String format, Object... arguments) {
if (isInfoEnabled(marker)) {
handleArgArrayCall(Level.INFO, marker, format, arguments);
}
}
public void info(Marker marker, String msg, Throwable t) {
if (isInfoEnabled(marker)) {
handle_0ArgsCall(Level.INFO, marker, msg, t);
}
}
public void warn(String msg) {
if (isWarnEnabled()) {
handle_0ArgsCall(Level.WARN, null, msg, null);
}
}
public void warn(String format, Object arg) {
if (isWarnEnabled()) {
handle_1ArgsCall(Level.WARN, null, format, arg);
}
}
public void warn(String format, Object arg1, Object arg2) {
if (isWarnEnabled()) {
handle2ArgsCall(Level.WARN, null, format, arg1, arg2);
}
}
public void warn(String format, Object... arguments) {
if (isWarnEnabled()) {
handleArgArrayCall(Level.WARN, null, format, arguments);
}
}
public void warn(String msg, Throwable t) {
if (isWarnEnabled()) {
handle_0ArgsCall(Level.WARN, null, msg, t);
}
}
public void warn(Marker marker, String msg) {
if (isWarnEnabled(marker)) {
handle_0ArgsCall(Level.WARN, marker, msg, null);
}
}
public void warn(Marker marker, String format, Object arg) {
if (isWarnEnabled(marker)) {
handle_1ArgsCall(Level.WARN, marker, format, arg);
}
}
public void warn(Marker marker, String format, Object arg1, Object arg2) {
if (isWarnEnabled(marker)) {
handle2ArgsCall(Level.WARN, marker, format, arg1, arg2);
}
}
public void warn(Marker marker, String format, Object... arguments) {
if (isWarnEnabled(marker)) {
handleArgArrayCall(Level.WARN, marker, format, arguments);
}
}
public void warn(Marker marker, String msg, Throwable t) {
if (isWarnEnabled(marker)) {
handle_0ArgsCall(Level.WARN, marker, msg, t);
}
}
public void error(String msg) {
if (isErrorEnabled()) {
handle_0ArgsCall(Level.ERROR, null, msg, null);
}
}
public void error(String format, Object arg) {
if (isErrorEnabled()) {
handle_1ArgsCall(Level.ERROR, null, format, arg);
}
}
public void error(String format, Object arg1, Object arg2) {
if (isErrorEnabled()) {
handle2ArgsCall(Level.ERROR, null, format, arg1, arg2);
}
}
public void error(String format, Object... arguments) {
if (isErrorEnabled()) {
handleArgArrayCall(Level.ERROR, null, format, arguments);
}
}
public void error(String msg, Throwable t) {
if (isErrorEnabled()) {
handle_0ArgsCall(Level.ERROR, null, msg, t);
}
}
public void error(Marker marker, String msg) {
if (isErrorEnabled(marker)) {
handle_0ArgsCall(Level.ERROR, marker, msg, null);
}
}
public void error(Marker marker, String format, Object arg) {
if (isErrorEnabled(marker)) {
handle_1ArgsCall(Level.ERROR, marker, format, arg);
}
}
public void error(Marker marker, String format, Object arg1, Object arg2) {
if (isErrorEnabled(marker)) {
handle2ArgsCall(Level.ERROR, marker, format, arg1, arg2);
}
}
public void error(Marker marker, String format, Object... arguments) {
if (isErrorEnabled(marker)) {
handleArgArrayCall(Level.ERROR, marker, format, arguments);
}
}
public void error(Marker marker, String msg, Throwable t) {
if (isErrorEnabled(marker)) {
handle_0ArgsCall(Level.ERROR, marker, msg, t);
}
}
private void handle_0ArgsCall(Level level, Marker marker, String msg, Throwable t) {
handleNormalizedLoggingCall(level, marker, msg, null, t);
}
private void handle_1ArgsCall(Level level, Marker marker, String msg, Object arg1) {
handleNormalizedLoggingCall(level, marker, msg, new Object[] { arg1 }, null);
}
private void handle2ArgsCall(Level level, Marker marker, String msg, Object arg1, Object arg2) {
if (arg2 instanceof Throwable) {
handleNormalizedLoggingCall(level, marker, msg, new Object[] { arg1 }, (Throwable) arg2);
} else {
handleNormalizedLoggingCall(level, marker, msg, new Object[] { arg1, arg2 }, null);
}
}
private void handleArgArrayCall(Level level, Marker marker, String msg, Object[] args) {
Throwable throwableCandidate = MessageFormatter.getThrowableCandidate(args);
if (throwableCandidate != null) {
Object[] trimmedCopy = MessageFormatter.trimmedCopy(args);
handleNormalizedLoggingCall(level, marker, msg, trimmedCopy, throwableCandidate);
} else {
handleNormalizedLoggingCall(level, marker, msg, args, null);
}
}
abstract protected String getFullyQualifiedCallerName();
/**
* Given various arguments passed as parameters, perform actual logging.
*
* <p>This method assumes that the separation of the args array into actual
* objects and a throwable has been already operated.
*
* @param level the SLF4J level for this event
* @param marker The marker to be used for this event, may be null.
* @param messagePattern The message pattern which will be parsed and formatted
* @param arguments the array of arguments to be formatted, may be null
* @param throwable The exception whose stack trace should be logged, may be null
*/
abstract protected void handleNormalizedLoggingCall(Level level, Marker marker, String messagePattern, Object[] arguments, Throwable throwable);
}
⏎ org/slf4j/helpers/AbstractLogger.java
Or download all of them as a single archive file:
File name: slf4j-api-2.0.4-sources.jar File size: 70304 bytes Release date: 2022-11-17 Download
⇒ Source Code for SLF4J Simple Logging
⇐ Downloading SLF4J Components
2020-02-13, 26779👍, 2💬
