/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.log4j;

import org.apache.log4j.spi.LoggingEvent;

import java.util.ResourceBundle;

/**
 * This class provides parameterized logging services using the SLF4J pattern
 * syntax.
 * <p>
 * Message formatting is only performed when the request exceeds the threshold
 * level of the logger.
 *
 * @since 1.2.16
 *
 */
public final class LogSF extends LogXF {
    /**
     * private constructor.
     *
     */
    private LogSF() {
    }

    /**
     * Formats arguments using SLF4J-like formatter.
     * 
     * @param pattern   pattern, may be malformed.
     * @param arguments arguments.
     * @return Message string
     */
    private static String format(final String pattern, final Object[] arguments) {
	if (pattern != null) {
	    String retval = "";
	    int count = 0;
	    int prev = 0;
	    int pos = pattern.indexOf("{");
	    while (pos >= 0) {
		if (pos == 0 || pattern.charAt(pos - 1) != '\\') {
		    retval += pattern.substring(prev, pos);
		    if (pos + 1 < pattern.length() && pattern.charAt(pos + 1) == '}') {
			if (arguments != null && count < arguments.length) {
			    retval += arguments[count++];
			} else {
			    retval += "{}";
			}
			prev = pos + 2;
		    } else {
			retval += "{";
			prev = pos + 1;
		    }
		} else {
		    retval += pattern.substring(prev, pos - 1) + "{";
		    prev = pos + 1;
		}
		pos = pattern.indexOf("{", prev);
	    }
	    return retval + pattern.substring(prev);
	}
	return null;
    }

    /**
     * Formats arguments using MessageFormat.
     * 
     * @param pattern pattern, may be malformed.
     * @param arg0    argument, may be null or mismatched.
     * @return Message string
     */
    private static String format(final String pattern, final Object arg0) {
	if (pattern != null) {
	    //
	    // if there is an escaped brace, delegate to multi-param formatter
	    if (pattern.indexOf("\\{") >= 0) {
		return format(pattern, new Object[] { arg0 });
	    }
	    int pos = pattern.indexOf("{}");
	    if (pos >= 0) {
		return pattern.substring(0, pos) + arg0 + pattern.substring(pos + 2);
	    }
	}
	return pattern;
    }

    /**
     * Formats arguments using MessageFormat using a pattern from a resource bundle.
     * 
     * @param resourceBundleName name of resource bundle, may be null.
     * @param key                key for pattern in resource bundle, may be null.
     * @param arguments          arguments, may be null or mismatched.
     * @return Message string or null
     */
    private static String format(final String resourceBundleName, final String key, final Object[] arguments) {
	String pattern;
	if (resourceBundleName != null) {
	    try {
		ResourceBundle bundle = ResourceBundle.getBundle(resourceBundleName);
		pattern = bundle.getString(key);
	    } catch (Exception ex) {
		pattern = key;
	    }
	} else {
	    pattern = key;
	}
	return format(pattern, arguments);
    }

    /**
     * Fully Qualified Class Name of this class.
     */
    private static final String FQCN = LogSF.class.getName();

    /**
     * Equivalent of Logger.forcedLog.
     *
     * @param logger logger, may not be null.
     * @param level  level, may not be null.
     * @param msg    message, may be null.
     */
    private static void forcedLog(final Logger logger, final Level level, final String msg) {
	logger.callAppenders(new LoggingEvent(FQCN, logger, level, msg, null));
    }

    /**
     * Equivalent of Logger.forcedLog.
     *
     * @param logger logger, may not be null.
     * @param level  level, may not be null.
     * @param msg    message, may be null.
     * @param t      throwable.
     */
    private static void forcedLog(final Logger logger, final Level level, final String msg, final Throwable t) {
	logger.callAppenders(new LoggingEvent(FQCN, logger, level, msg, t));
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger    logger, may not be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, arguments));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger    logger, may not be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final Object[] arguments) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, arguments));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger    logger, may not be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final Object[] arguments) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, arguments));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger    logger, may not be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, arguments));
	}
    }

    /**
     * Log a parameterized message at error level.
     * 
     * @param logger    logger, may not be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void error(final Logger logger, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(Level.ERROR)) {
	    forcedLog(logger, Level.ERROR, format(pattern, arguments));
	}
    }

    /**
     * Log a parameterized message at fatal level.
     * 
     * @param logger    logger, may not be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void fatal(final Logger logger, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(Level.FATAL)) {
	    forcedLog(logger, Level.FATAL, format(pattern, arguments));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger    logger, may not be null.
     * @param t         throwable, may be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void trace(final Logger logger, final Throwable t, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, arguments), t);
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger    logger, may not be null.
     * @param t         throwable, may be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void debug(final Logger logger, final Throwable t, final String pattern, final Object[] arguments) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, arguments), t);
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger    logger, may not be null.
     * @param t         throwable, may be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void info(final Logger logger, final Throwable t, final String pattern, final Object[] arguments) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, arguments), t);
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger    logger, may not be null.
     * @param t         throwable, may be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void warn(final Logger logger, final Throwable t, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, arguments), t);
	}
    }

    /**
     * Log a parameterized message at error level.
     * 
     * @param logger    logger, may not be null.
     * @param t         throwable, may be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void error(final Logger logger, final Throwable t, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(Level.ERROR)) {
	    forcedLog(logger, Level.ERROR, format(pattern, arguments), t);
	}
    }

    /**
     * Log a parameterized message at fatal level.
     * 
     * @param logger    logger, may not be null.
     * @param t         throwable, may be null.
     * @param pattern   pattern, may be null.
     * @param arguments an array of arguments to be formatted and substituted.
     */
    public static void fatal(final Logger logger, final Throwable t, final String pattern, final Object[] arguments) {
	if (logger.isEnabledFor(Level.FATAL)) {
	    forcedLog(logger, Level.FATAL, format(pattern, arguments), t);
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final boolean argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final char argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final byte argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final short argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final int argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final long argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final float argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final double argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final Object argument) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, argument));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final Object arg0, final Object arg1) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, toArray(arg0, arg1)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, toArray(arg0, arg1, arg2)));
	}
    }

    /**
     * Log a parameterized message at trace level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     * @param arg3    a value to be formatted and substituted.
     */
    public static void trace(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2, final Object arg3) {
	if (logger.isEnabledFor(TRACE)) {
	    forcedLog(logger, TRACE, format(pattern, toArray(arg0, arg1, arg2, arg3)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final boolean argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final char argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final byte argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final short argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final int argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final long argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final float argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final double argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final Object argument) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, argument));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final Object arg0, final Object arg1) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, toArray(arg0, arg1)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, toArray(arg0, arg1, arg2)));
	}
    }

    /**
     * Log a parameterized message at debug level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     * @param arg3    a value to be formatted and substituted.
     */
    public static void debug(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2, final Object arg3) {
	if (logger.isDebugEnabled()) {
	    forcedLog(logger, Level.DEBUG, format(pattern, toArray(arg0, arg1, arg2, arg3)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final boolean argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final char argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final byte argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final short argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final int argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final long argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final float argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final double argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final Object argument) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, argument));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final Object arg0, final Object arg1) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, toArray(arg0, arg1)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, toArray(arg0, arg1, arg2)));
	}
    }

    /**
     * Log a parameterized message at info level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     * @param arg3    a value to be formatted and substituted.
     */
    public static void info(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2, final Object arg3) {
	if (logger.isInfoEnabled()) {
	    forcedLog(logger, Level.INFO, format(pattern, toArray(arg0, arg1, arg2, arg3)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final boolean argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final char argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final byte argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final short argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final int argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final long argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final float argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final double argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, valueOf(argument)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger   logger, may not be null.
     * @param pattern  pattern, may be null.
     * @param argument a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final Object argument) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, argument));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final Object arg0, final Object arg1) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, toArray(arg0, arg1)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, toArray(arg0, arg1, arg2)));
	}
    }

    /**
     * Log a parameterized message at warn level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     * @param arg3    a value to be formatted and substituted.
     */
    public static void warn(final Logger logger, final String pattern, final Object arg0, final Object arg1,
	    final Object arg2, final Object arg3) {
	if (logger.isEnabledFor(Level.WARN)) {
	    forcedLog(logger, Level.WARN, format(pattern, toArray(arg0, arg1, arg2, arg3)));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param pattern    pattern, may be null.
     * @param parameters parameters to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final Object[] parameters) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, parameters));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param t          throwable, may be null.
     * @param pattern    pattern, may be null.
     * @param parameters parameters to the log message.
     */
    public static void log(final Logger logger, final Level level, final Throwable t, final String pattern,
	    final Object[] parameters) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, parameters), t);
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final Object param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(param1)));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final boolean param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final byte param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final char param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final short param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final int param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final long param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final float param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param param1  parameter to the log message.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final double param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final Object arg0,
	    final Object arg1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(arg0, arg1)));
	}
    }

    /**
     * Log a parameterized message at specifed level.
     * 
     * @param logger  logger, may not be null.
     * @param level   level, may not be null.
     * @param pattern pattern, may be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final Object arg0,
	    final Object arg1, final Object arg2) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(arg0, arg1, arg2)));
	}
    }

    /**
     * Log a parameterized message at specified level.
     * 
     * @param logger  logger, may not be null.
     * @param pattern pattern, may be null.
     * @param level   level, may not be null.
     * @param arg0    a value to be formatted and substituted.
     * @param arg1    a value to be formatted and substituted.
     * @param arg2    a value to be formatted and substituted.
     * @param arg3    a value to be formatted and substituted.
     */
    public static void log(final Logger logger, final Level level, final String pattern, final Object arg0,
	    final Object arg1, final Object arg2, final Object arg3) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(pattern, toArray(arg0, arg1, arg2, arg3)));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param parameters parameters to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final Object[] parameters) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, parameters));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param t          throwable, may be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param parameters parameters to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final Throwable t, final String bundleName,
	    final String key, final Object[] parameters) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, parameters), t);
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final Object param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(param1)));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final boolean param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final char param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final byte param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final short param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final int param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final long param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final float param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final double param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(valueOf(param1))));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param0     Parameter to the log message.
     * @param param1     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final Object param0, final Object param1) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(param0, param1)));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param0     Parameter to the log message.
     * @param param1     Parameter to the log message.
     * @param param2     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final Object param0, final Object param1, final Object param2) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(param0, param1, param2)));
	}
    }

    /**
     * Log a parameterized message using a pattern from a resource bundle.
     * 
     * @param logger     logger, may not be null.
     * @param level      level, may not be null.
     * @param bundleName resource bundle name, may be null.
     * @param key        key, may be null.
     * @param param0     Parameter to the log message.
     * @param param1     Parameter to the log message.
     * @param param2     Parameter to the log message.
     * @param param3     Parameter to the log message.
     */
    public static void logrb(final Logger logger, final Level level, final String bundleName, final String key,
	    final Object param0, final Object param1, final Object param2, final Object param3) {
	if (logger.isEnabledFor(level)) {
	    forcedLog(logger, level, format(bundleName, key, toArray(param0, param1, param2, param3)));
	}
    }
}
