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/*
 * SonarLint Core - Slf4j log adaptor
 * Copyright (C) 2016-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.slf4j;

/**
 * The org.slf4j.Logger interface is the main user entry point of SLF4J API. 
 * It is expected that logging takes place through concrete implementations 
 * of this interface.
 *
 * 

Typical usage pattern:

*
 * import org.slf4j.Logger;
 * import org.slf4j.LoggerFactory;
 * 
 * public class Wombat {
 *
 *   final static Logger logger = LoggerFactory.getLogger(Wombat.class);
 *   Integer t;
 *   Integer oldT;
 *
 *   public void setTemperature(Integer temperature) {
 *     oldT = t;        
 *     t = temperature;
 *     logger.debug("Temperature set to {}. Old temperature was {}.", t, oldT);
 *     if(temperature.intValue() > 50) {
 *       logger.info("Temperature has risen above 50 degrees.");
 *     }
 *   }
 * }
 
* @author Ceki Gülcü */ public interface Logger { /** * Case insensitive String constant used to retrieve the name of the root logger. * @since 1.3 */ final public String ROOT_LOGGER_NAME = "ROOT"; /** * Return the name of this Logger instance. */ public String getName(); /** * Is the logger instance enabled for the TRACE level? * @return True if this Logger is enabled for the TRACE level, * false otherwise. * * @since 1.4 */ public boolean isTraceEnabled(); /** * Log a message at the TRACE level. * * @param msg the message string to be logged * @since 1.4 */ public void trace(String msg); /** * Log a message at the TRACE level according to the specified format * and argument. * *

This form avoids superfluous object creation when the logger * is disabled for the TRACE level.

* * @param format the format string * @param arg the argument * * @since 1.4 */ public void trace(String format, Object arg); /** * Log a message at the TRACE level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the TRACE level.

* * @param format the format string * @param arg1 the first argument * @param arg2 the second argument * * @since 1.4 */ public void trace(String format, Object arg1, Object arg2); /** * Log a message at the TRACE level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the TRACE level.

* * @param format the format string * @param argArray an array of arguments * * @since 1.4 */ public void trace(String format, Object[] argArray); /** * Log an exception (throwable) at the TRACE level with an * accompanying message. * * @param msg the message accompanying the exception * @param t the exception (throwable) to log * * @since 1.4 */ public void trace(String msg, Throwable t); /** * Similar to {@link #isTraceEnabled()} method except that the * marker data is also taken into account. * * @param marker The marker data to take into consideration * * @since 1.4 */ public boolean isTraceEnabled(Marker marker); /** * Log a message with the specific Marker at the TRACE level. * * @param marker the marker data specific to this log statement * @param msg the message string to be logged * * @since 1.4 */ public void trace(Marker marker, String msg); /** * This method is similar to {@link #trace(String, Object)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg the argument * * @since 1.4 */ public void trace(Marker marker, String format, Object arg); /** * This method is similar to {@link #trace(String, Object, Object)} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg1 the first argument * @param arg2 the second argument * * @since 1.4 */ public void trace(Marker marker, String format, Object arg1, Object arg2); /** * This method is similar to {@link #trace(String, Object[])} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param argArray an array of arguments * * @since 1.4 */ public void trace(Marker marker, String format, Object[] argArray); /** * This method is similar to {@link #trace(String, Throwable)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param msg the message accompanying the exception * @param t the exception (throwable) to log * * @since 1.4 */ public void trace(Marker marker, String msg, Throwable t); /** * Is the logger instance enabled for the DEBUG level? * @return True if this Logger is enabled for the DEBUG level, * false otherwise. * */ public boolean isDebugEnabled(); /** * Log a message at the DEBUG level. * * @param msg the message string to be logged */ public void debug(String msg); /** * Log a message at the DEBUG level according to the specified format * and argument. * *

This form avoids superfluous object creation when the logger * is disabled for the DEBUG level.

* * @param format the format string * @param arg the argument */ public void debug(String format, Object arg); /** * Log a message at the DEBUG level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the DEBUG level.

* * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void debug(String format, Object arg1, Object arg2); /** * Log a message at the DEBUG level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the DEBUG level.

* * @param format the format string * @param argArray an array of arguments */ public void debug(String format, Object[] argArray); /** * Log an exception (throwable) at the DEBUG level 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); /** * Similar to {@link #isDebugEnabled()} method except that the * marker data is also taken into account. * * @param marker The marker data to take into consideration */ public boolean isDebugEnabled(Marker marker); /** * Log a message with the specific Marker at the DEBUG level. * * @param marker the marker data specific to this log statement * @param msg the message string to be logged */ public void debug(Marker marker, String msg); /** * This method is similar to {@link #debug(String, Object)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg the argument */ public void debug(Marker marker, String format, Object arg); /** * This method is similar to {@link #debug(String, Object, Object)} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void debug(Marker marker, String format, Object arg1, Object arg2); /** * This method is similar to {@link #debug(String, Object[])} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param argArray an array of arguments */ public void debug(Marker marker, String format, Object[] argArray); /** * This method is similar to {@link #debug(String, Throwable)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param msg the message accompanying the exception * @param t the exception (throwable) to log */ public void debug(Marker marker, String msg, Throwable t); /** * Is the logger instance enabled for the INFO level? * @return True if this Logger is enabled for the INFO level, * false otherwise. */ public boolean isInfoEnabled(); /** * Log a message at the INFO level. * * @param msg the message string to be logged */ public void info(String msg); /** * Log a message at the INFO level according to the specified format * and argument. * *

This form avoids superfluous object creation when the logger * is disabled for the INFO level.

* * @param format the format string * @param arg the argument */ public void info(String format, Object arg); /** * Log a message at the INFO level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the INFO level.

* * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void info(String format, Object arg1, Object arg2); /** * Log a message at the INFO level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the INFO level.

* * @param format the format string * @param argArray an array of arguments */ public void info(String format, Object[] argArray); /** * 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); /** * Similar to {@link #isInfoEnabled()} method except that the marker * data is also taken into consideration. * * @param marker The marker data to take into consideration */ public boolean isInfoEnabled(Marker marker); /** * Log a message with the specific Marker at the INFO level. * * @param marker The marker specific to this log statement * @param msg the message string to be logged */ public void info(Marker marker, String msg); /** * This method is similar to {@link #info(String, Object)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg the argument */ public void info(Marker marker, String format, Object arg); /** * This method is similar to {@link #info(String, Object, Object)} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void info(Marker marker, String format, Object arg1, Object arg2); /** * This method is similar to {@link #info(String, Object[])} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param argArray an array of arguments */ public void info(Marker marker, String format, Object[] argArray); /** * This method is similar to {@link #info(String, Throwable)} method * except that the marker data is also taken into consideration. * * @param marker the marker data for this log statement * @param msg the message accompanying the exception * @param t the exception (throwable) to log */ public void info(Marker marker, String msg, Throwable t); /** * Is the logger instance enabled for the WARN level? * @return True if this Logger is enabled for the WARN level, * false otherwise. */ public boolean isWarnEnabled(); /** * Log a message at the WARN level. * * @param msg the message string to be logged */ public void warn(String msg); /** * Log a message at the WARN level according to the specified format * and argument. * *

This form avoids superfluous object creation when the logger * is disabled for the WARN level.

* * @param format the format string * @param arg the argument */ public void warn(String format, Object arg); /** * Log a message at the WARN level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the WARN level.

* * @param format the format string * @param argArray an array of arguments */ public void warn(String format, Object[] argArray); /** * Log a message at the WARN level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the WARN level.

* * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void warn(String format, Object arg1, Object arg2); /** * Log an exception (throwable) at the WARN 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); /** * Similar to {@link #isWarnEnabled()} method except that the marker * data is also taken into consideration. * * @param marker The marker data to take into consideration */ public boolean isWarnEnabled(Marker marker); /** * Log a message with the specific Marker at the WARN level. * * @param marker The marker specific to this log statement * @param msg the message string to be logged */ public void warn(Marker marker, String msg); /** * This method is similar to {@link #warn(String, Object)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg the argument */ public void warn(Marker marker, String format, Object arg); /** * This method is similar to {@link #warn(String, Object, Object)} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void warn(Marker marker, String format, Object arg1, Object arg2); /** * This method is similar to {@link #warn(String, Object[])} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param argArray an array of arguments */ public void warn(Marker marker, String format, Object[] argArray); /** * This method is similar to {@link #warn(String, Throwable)} method * except that the marker data is also taken into consideration. * * @param marker the marker data for this log statement * @param msg the message accompanying the exception * @param t the exception (throwable) to log */ public void warn(Marker marker, String msg, Throwable t); /** * Is the logger instance enabled for the ERROR level? * @return True if this Logger is enabled for the ERROR level, * false otherwise. */ public boolean isErrorEnabled(); /** * Log a message at the ERROR level. * * @param msg the message string to be logged */ public void error(String msg); /** * Log a message at the ERROR level according to the specified format * and argument. * *

This form avoids superfluous object creation when the logger * is disabled for the ERROR level.

* * @param format the format string * @param arg the argument */ public void error(String format, Object arg); /** * Log a message at the ERROR level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the ERROR level.

* * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void error(String format, Object arg1, Object arg2); /** * Log a message at the ERROR level according to the specified format * and arguments. * *

This form avoids superfluous object creation when the logger * is disabled for the ERROR level.

* * @param format the format string * @param argArray an array of arguments */ public void error(String format, Object[] argArray); /** * Log an exception (throwable) at the ERROR 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); /** * Similar to {@link #isErrorEnabled()} method except that the * marker data is also taken into consideration. * * @param marker The marker data to take into consideration */ public boolean isErrorEnabled(Marker marker); /** * Log a message with the specific Marker at the ERROR level. * * @param marker The marker specific to this log statement * @param msg the message string to be logged */ public void error(Marker marker, String msg); /** * This method is similar to {@link #error(String, Object)} method except that the * marker data is also taken into consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg the argument */ public void error(Marker marker, String format, Object arg); /** * This method is similar to {@link #error(String, Object, Object)} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param arg1 the first argument * @param arg2 the second argument */ public void error(Marker marker, String format, Object arg1, Object arg2); /** * This method is similar to {@link #error(String, Object[])} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param format the format string * @param argArray an array of arguments */ public void error(Marker marker, String format, Object[] argArray); /** * This method is similar to {@link #error(String, Throwable)} * method except that the marker data is also taken into * consideration. * * @param marker the marker data specific to this log statement * @param msg the message accompanying the exception * @param t the exception (throwable) to log */ public void error(Marker marker, String msg, Throwable t); }




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