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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  * </p>
28  *
29  * @author Ceki G&uuml;lc&uuml;
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
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      */
isTraceEnabled()65     public boolean isTraceEnabled() {
66         return slf4jLogger.isTraceEnabled();
67     }
68 
69     /**
70      * Delegates to {@link org.slf4j.Logger#trace(String)} method in SLF4J.
71      */
trace(Object message)72     public void trace(Object message) {
73         differentiatedLog(null, LOGGER_FQCN, LocationAwareLogger.TRACE_INT, message, null);
74     }
75 
76     /**
77      * Delegates to {@link org.slf4j.Logger#trace(String,Throwable)}
78      * method in SLF4J.
79      */
trace(Object message, Throwable t)80     public void trace(Object message, Throwable t) {
81         differentiatedLog(null, LOGGER_FQCN, LocationAwareLogger.TRACE_INT, message, null);
82     }
83 
84 }
85