Here you can find the source of info(Logger logger, String msg)
public static void info(Logger logger, String msg)
//package com.java2s; /*/*from w w w. jav a2s . c om*/ * Copyright 2015 The RPC Project * * The RPC Project 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. */ import org.slf4j.Logger; public class Main { public static void info(Logger logger, String msg) { if (logger == null) { return; } if (logger.isInfoEnabled()) { logger.info(msg); } } public static void info(Logger logger, String msg, Object... args) { if (logger == null) { return; } if (logger.isInfoEnabled()) { logger.info(String.format(msg, args)); } } public static void info(Logger logger, Throwable e) { if (logger == null) { return; } if (logger.isInfoEnabled()) { logger.info("", e); } } public static void info(Logger logger, String msg, Throwable e) { if (logger == null) { return; } if (logger.isInfoEnabled()) { logger.info(msg, e); } } public static void info(Logger logger, String msg, Throwable e, Object... args) { if (logger == null) { return; } if (logger.isInfoEnabled()) { logger.info(String.format(msg, args), e); } } public static String format(long tranId, String message, Object... args) { return String.format("[%08X] %s", tranId, message, args); } }