001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache license, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the license for the specific language governing permissions and
015 * limitations under the license.
016 */
017 package org.apache.logging.slf4j;
018
019 import org.apache.logging.log4j.Level;
020 import org.apache.logging.log4j.Marker;
021 import org.apache.logging.log4j.message.LoggerNameAwareMessage;
022 import org.apache.logging.log4j.message.Message;
023 import org.apache.logging.log4j.message.MessageFactory;
024 import org.apache.logging.log4j.spi.AbstractLogger;
025 import org.slf4j.MarkerFactory;
026 import org.slf4j.spi.LocationAwareLogger;
027
028 /**
029 *
030 */
031 public class SLF4JLogger extends AbstractLogger {
032
033 private static final long serialVersionUID = 1L;
034 private final org.slf4j.Logger logger;
035 private final LocationAwareLogger locationAwareLogger;
036
037 public SLF4JLogger(final String name, final MessageFactory messageFactory, final org.slf4j.Logger logger) {
038 super(name, messageFactory);
039 this.logger = logger;
040 this.locationAwareLogger = logger instanceof LocationAwareLogger ? (LocationAwareLogger) logger : null;
041 }
042
043 public SLF4JLogger(final String name, final org.slf4j.Logger logger) {
044 super(name);
045 this.logger = logger;
046 this.locationAwareLogger = logger instanceof LocationAwareLogger ? (LocationAwareLogger) logger : null;
047 }
048
049 private int convertLevel(final Level level) {
050 switch (level.getStandardLevel()) {
051 case DEBUG :
052 return LocationAwareLogger.DEBUG_INT;
053 case TRACE :
054 return LocationAwareLogger.TRACE_INT;
055 case INFO :
056 return LocationAwareLogger.INFO_INT;
057 case WARN :
058 return LocationAwareLogger.WARN_INT;
059 case ERROR :
060 return LocationAwareLogger.ERROR_INT;
061 default :
062 return LocationAwareLogger.ERROR_INT;
063 }
064 }
065
066 @Override
067 public Level getLevel() {
068 if (logger.isTraceEnabled()) {
069 return Level.TRACE;
070 }
071 if (logger.isDebugEnabled()) {
072 return Level.DEBUG;
073 }
074 if (logger.isInfoEnabled()) {
075 return Level.INFO;
076 }
077 if (logger.isWarnEnabled()) {
078 return Level.WARN;
079 }
080 if (logger.isErrorEnabled()) {
081 return Level.ERROR;
082 }
083 // Option: throw new IllegalStateException("Unknown SLF4JLevel");
084 // Option: return Level.ALL;
085 return Level.OFF;
086 }
087
088 public org.slf4j.Logger getLogger() {
089 return locationAwareLogger != null ? locationAwareLogger : logger;
090 }
091
092 private org.slf4j.Marker getMarker(final Marker marker) {
093 if (marker == null) {
094 return null;
095 }
096 final org.slf4j.Marker slf4jMarker = MarkerFactory.getMarker(marker.getName());
097 final Marker[] parents = marker.getParents();
098 if (parents != null) {
099 for (final Marker parent : parents) {
100 final org.slf4j.Marker slf4jParent = getMarker(parent);
101 if (!slf4jMarker.contains(slf4jParent)) {
102 slf4jMarker.add(slf4jParent);
103 }
104 }
105 }
106 return slf4jMarker;
107 }
108
109 @Override
110 public boolean isEnabled(final Level level, final Marker marker, final Message data, final Throwable t) {
111 return isEnabledFor(level, marker);
112 }
113
114 @Override
115 public boolean isEnabled(final Level level, final Marker marker, final Object data, final Throwable t) {
116 return isEnabledFor(level, marker);
117 }
118
119 @Override
120 public boolean isEnabled(final Level level, final Marker marker, final String data) {
121 return isEnabledFor(level, marker);
122 }
123
124 @Override
125 public boolean isEnabled(final Level level, final Marker marker, final String data, final Object... p1) {
126 return isEnabledFor(level, marker);
127 }
128
129 @Override
130 public boolean isEnabled(final Level level, final Marker marker, final String data, final Throwable t) {
131 return isEnabledFor(level, marker);
132 }
133
134 private boolean isEnabledFor(final Level level, final Marker marker) {
135 final org.slf4j.Marker slf4jMarker = getMarker(marker);
136 switch (level.getStandardLevel()) {
137 case DEBUG :
138 return logger.isDebugEnabled(slf4jMarker);
139 case TRACE :
140 return logger.isTraceEnabled(slf4jMarker);
141 case INFO :
142 return logger.isInfoEnabled(slf4jMarker);
143 case WARN :
144 return logger.isWarnEnabled(slf4jMarker);
145 case ERROR :
146 return logger.isErrorEnabled(slf4jMarker);
147 default :
148 return logger.isErrorEnabled(slf4jMarker);
149
150 }
151 }
152
153 @Override
154 public void logMessage(final String fqcn, final Level level, final Marker marker, final Message message, final Throwable t) {
155 if (locationAwareLogger != null) {
156 if (message instanceof LoggerNameAwareMessage) {
157 ((LoggerNameAwareMessage) message).setLoggerName(getName());
158 }
159 locationAwareLogger.log(getMarker(marker), fqcn, convertLevel(level), message.getFormattedMessage(),
160 message.getParameters(), t);
161 } else {
162 switch (level.getStandardLevel()) {
163 case DEBUG :
164 logger.debug(getMarker(marker), message.getFormattedMessage(), message.getParameters(), t);
165 break;
166 case TRACE :
167 logger.trace(getMarker(marker), message.getFormattedMessage(), message.getParameters(), t);
168 break;
169 case INFO :
170 logger.info(getMarker(marker), message.getFormattedMessage(), message.getParameters(), t);
171 break;
172 case WARN :
173 logger.warn(getMarker(marker), message.getFormattedMessage(), message.getParameters(), t);
174 break;
175 case ERROR :
176 logger.error(getMarker(marker), message.getFormattedMessage(), message.getParameters(), t);
177 break;
178 default :
179 logger.error(getMarker(marker), message.getFormattedMessage(), message.getParameters(), t);
180 break;
181 }
182 }
183 }
184
185 }