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.log4j.simple; 018 019 import org.apache.logging.log4j.Level; 020 import org.apache.logging.log4j.Logger; 021 import org.apache.logging.log4j.spi.LoggerContext; 022 import org.apache.logging.log4j.util.PropsUtil; 023 024 import java.io.FileNotFoundException; 025 import java.io.FileOutputStream; 026 import java.io.PrintStream; 027 import java.util.Properties; 028 import java.util.concurrent.ConcurrentHashMap; 029 import java.util.concurrent.ConcurrentMap; 030 031 /** 032 * 033 */ 034 public class SimpleLoggerContext implements LoggerContext { 035 036 /** The default format to use when formating dates */ 037 protected static final String DEFAULT_DATE_TIME_FORMAT = "yyyy/MM/dd HH:mm:ss:SSS zzz"; 038 039 /** All system properties used by <code>SimpleLog</code> start with this */ 040 protected static final String SYSTEM_PREFIX = "org.apache.logging.log4j.simplelog."; 041 042 /** Properties loaded from simplelog.properties */ 043 private Properties simpleLogProps = new Properties(); 044 045 private PropsUtil props; 046 047 /** Include the instance name in the log message? */ 048 private final boolean showLogName; 049 /** Include the short name ( last component ) of the logger in the log 050 * message. Defaults to true - otherwise we'll be lost in a flood of 051 * messages without knowing who sends them. 052 */ 053 private final boolean showShortName; 054 /** Include the current time in the log message */ 055 private final boolean showDateTime; 056 /** Include the ThreadContextMap in the log message */ 057 private final boolean showContextMap; 058 /** The date and time format to use in the log message */ 059 private final String dateTimeFormat; 060 061 private final Level defaultLevel; 062 063 private final PrintStream stream; 064 065 public SimpleLoggerContext() { 066 props = new PropsUtil("log4j2.simplelog.properties"); 067 068 showContextMap = props.getBooleanProperty(SYSTEM_PREFIX + "showContextMap", false); 069 showLogName = props.getBooleanProperty(SYSTEM_PREFIX + "showlogname", false); 070 showShortName = props.getBooleanProperty(SYSTEM_PREFIX + "showShortLogname", true); 071 showDateTime = props.getBooleanProperty(SYSTEM_PREFIX + "showdatetime", false); 072 String lvl = props.getStringProperty(SYSTEM_PREFIX + "level"); 073 defaultLevel = Level.toLevel(lvl, Level.ERROR); 074 075 dateTimeFormat = showDateTime ? props.getStringProperty(SimpleLoggerContext.SYSTEM_PREFIX + "dateTimeFormat", 076 DEFAULT_DATE_TIME_FORMAT) : null; 077 078 String fileName = props.getStringProperty(SYSTEM_PREFIX + "logFile", "system.err"); 079 PrintStream ps; 080 if ("system.err".equalsIgnoreCase(fileName)) { 081 ps = System.err; 082 } else if ("system.out".equalsIgnoreCase(fileName)) { 083 ps = System.out; 084 } else { 085 try { 086 FileOutputStream os = new FileOutputStream(fileName); 087 ps = new PrintStream(os); 088 } catch (FileNotFoundException fnfe) { 089 ps = System.err; 090 } 091 } 092 this.stream = ps; 093 } 094 095 private ConcurrentMap<String, Logger> loggers = new ConcurrentHashMap<String, Logger>(); 096 097 public Logger getLogger(String name) { 098 if (loggers.containsKey(name)) { 099 return loggers.get(name); 100 } 101 102 loggers.putIfAbsent(name, new SimpleLogger(name, defaultLevel, showLogName, showShortName, showDateTime, 103 showContextMap, dateTimeFormat, props, stream)); 104 return loggers.get(name); 105 } 106 107 public boolean hasLogger(String name) { 108 return false; 109 } 110 111 public Object getExternalContext() { 112 return null; 113 } 114 }