1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.log4j.pattern; 19 20 import org.apache.log4j.Level; 21 import org.apache.log4j.spi.LoggingEvent; 22 23 24 /** 25 * Return the event's level in a StringBuffer. 26 * 27 * @author Ceki Gülcü 28 */ 29 public final class LevelPatternConverter extends LoggingEventPatternConverter { 30 31 /** 32 * Integer severity for Level.TRACE. 33 */ 34 private static final int TRACE_INT = 5000; 35 /** 36 * Singleton. 37 */ 38 private static final LevelPatternConverter INSTANCE = 39 new LevelPatternConverter(); 40 41 /** 42 * Private constructor. 43 */ LevelPatternConverter()44 private LevelPatternConverter() { 45 super("Level", "level"); 46 } 47 48 /** 49 * Obtains an instance of pattern converter. 50 * @param options options, may be null. 51 * @return instance of pattern converter. 52 */ newInstance( final String[] options)53 public static LevelPatternConverter newInstance( 54 final String[] options) { 55 return INSTANCE; 56 } 57 58 /** 59 * {@inheritDoc} 60 */ format(final LoggingEvent event, final StringBuffer output)61 public void format(final LoggingEvent event, final StringBuffer output) { 62 output.append(event.getLevel().toString()); 63 } 64 65 /** 66 * {@inheritDoc} 67 */ getStyleClass(Object e)68 public String getStyleClass(Object e) { 69 if (e instanceof LoggingEvent) { 70 int lint = ((LoggingEvent) e).getLevel().toInt(); 71 72 switch (lint) { 73 case TRACE_INT: 74 return "level trace"; 75 76 case Level.DEBUG_INT: 77 return "level debug"; 78 79 case Level.INFO_INT: 80 return "level info"; 81 82 case Level.WARN_INT: 83 return "level warn"; 84 85 case Level.ERROR_INT: 86 return "level error"; 87 88 case Level.FATAL_INT: 89 return "level fatal"; 90 91 default: 92 return "level " + ((LoggingEvent) e).getLevel().toString(); 93 } 94 } 95 96 return "level"; 97 } 98 } 99