1 /* 2 * Copyright 2001-2004 The Apache Software Foundation. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.apache.log4j; 18 19 import org.apache.log4j.spi.LoggerFactory; 20 import org.slf4j.spi.LocationAwareLogger; 21 22 /** 23 * <p> 24 * This class is a minimal implementation of the original 25 * <code>org.apache.log4j.Logger</code> class (as found in log4j 1.2) 26 * delegating all calls to a {@link org.slf4j.Logger} instance. 27 * 28 * 29 * @author Ceki Gülcü 30 * */ 31 @SuppressWarnings("rawtypes") 32 public class Logger extends Category { 33 34 private static final String LOGGER_FQCN = Logger.class.getName(); 35 Logger(String name)36 protected Logger(String name) { 37 super(name); 38 } 39 getLogger(String name)40 public static Logger getLogger(String name) { 41 return Log4jLoggerFactory.getLogger(name); 42 } 43 getLogger(String name, LoggerFactory loggerFactory)44 public static Logger getLogger(String name, LoggerFactory loggerFactory) { 45 return Log4jLoggerFactory.getLogger(name, loggerFactory); 46 } 47 getLogger(Class clazz)48 public static Logger getLogger(Class clazz) { 49 return getLogger(clazz.getName()); 50 } 51 52 /** 53 * Does the obvious. 54 * 55 * @return the root logger 56 */ getRootLogger()57 public static Logger getRootLogger() { 58 return Log4jLoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME); 59 } 60 61 /** 62 * Delegates to {@link org.slf4j.Logger#isTraceEnabled} 63 * method of SLF4J. 64 * 65 * @return whether this logger is enabled for the level TRACE 66 */ isTraceEnabled()67 public boolean isTraceEnabled() { 68 return slf4jLogger.isTraceEnabled(); 69 } 70 71 /** 72 * Delegates to {@link org.slf4j.Logger#trace(String)} method in SLF4J. 73 * 74 * @param message the message to log 75 * 76 */ trace(Object message)77 public void trace(Object message) { 78 differentiatedLog(null, LOGGER_FQCN, LocationAwareLogger.TRACE_INT, message, null); 79 } 80 81 /** 82 * Delegates to {@link org.slf4j.Logger#trace(String,Throwable)} 83 * method in SLF4J. 84 * 85 * @param message the message to log 86 * @param t a Throwable to log 87 */ trace(Object message, Throwable t)88 public void trace(Object message, Throwable t) { 89 differentiatedLog(null, LOGGER_FQCN, LocationAwareLogger.TRACE_INT, message, t); 90 } 91 92 } 93