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1: /* SimpleFormatter.java -- 2: A class for formatting log records into short human-readable messages 3: Copyright (C) 2002, 2004 Free Software Foundation, Inc. 4: 5: This file is part of GNU Classpath. 6: 7: GNU Classpath is free software; you can redistribute it and/or modify 8: it under the terms of the GNU General Public License as published by 9: the Free Software Foundation; either version 2, or (at your option) 10: any later version. 11: 12: GNU Classpath is distributed in the hope that it will be useful, but 13: WITHOUT ANY WARRANTY; without even the implied warranty of 14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15: General Public License for more details. 16: 17: You should have received a copy of the GNU General Public License 18: along with GNU Classpath; see the file COPYING. If not, write to the 19: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20: 02110-1301 USA. 21: 22: Linking this library statically or dynamically with other modules is 23: making a combined work based on this library. Thus, the terms and 24: conditions of the GNU General Public License cover the whole 25: combination. 26: 27: As a special exception, the copyright holders of this library give you 28: permission to link this library with independent modules to produce an 29: executable, regardless of the license terms of these independent 30: modules, and to copy and distribute the resulting executable under 31: terms of your choice, provided that you also meet, for each linked 32: independent module, the terms and conditions of the license of that 33: module. An independent module is a module which is not derived from 34: or based on this library. If you modify this library, you may extend 35: this exception to your version of the library, but you are not 36: obligated to do so. If you do not wish to do so, delete this 37: exception statement from your version. */ 38: 39: 40: package java.util.logging; 41: 42: import java.text.DateFormat; 43: import java.util.Date; 44: 45: /** 46: * A <code>SimpleFormatter</code> formats log records into 47: * short human-readable messages, typically one or two lines. 48: * 49: * @author Sascha Brawer (brawer@acm.org) 50: */ 51: public class SimpleFormatter 52: extends Formatter 53: { 54: /** 55: * Constructs a SimpleFormatter. 56: */ 57: public SimpleFormatter() 58: { 59: } 60: 61: 62: /** 63: * An instance of a DateFormatter that is used for formatting 64: * the time of a log record into a human-readable string, 65: * according to the rules of the current locale. The value 66: * is set after the first invocation of format, since it is 67: * common that a JVM will instantiate a SimpleFormatter without 68: * ever using it. 69: */ 70: private DateFormat dateFormat; 71: 72: /** 73: * The character sequence that is used to separate lines in the 74: * generated stream. Somewhat surprisingly, the Sun J2SE 1.4 75: * reference implementation always uses UNIX line endings, even on 76: * platforms that have different line ending conventions (i.e., 77: * DOS). The GNU implementation does not replicate this bug. 78: * 79: * @see Sun bug parade, bug #4462871, 80: * "java.util.logging.SimpleFormatter uses hard-coded line separator". 81: */ 82: static final String lineSep = System.getProperty("line.separator"); 83: 84: 85: /** 86: * Formats a log record into a String. 87: * 88: * @param record the log record to be formatted. 89: * 90: * @return a short human-readable message, typically one or two 91: * lines. Lines are separated using the default platform line 92: * separator. 93: * 94: * @throws NullPointerException if <code>record</code> 95: * is <code>null</code>. 96: */ 97: public String format(LogRecord record) 98: { 99: StringBuffer buf = new StringBuffer(180); 100: 101: if (dateFormat == null) 102: dateFormat = DateFormat.getDateTimeInstance(); 103: 104: buf.append(dateFormat.format(new Date(record.getMillis()))); 105: buf.append(' '); 106: buf.append(record.getSourceClassName()); 107: buf.append(' '); 108: buf.append(record.getSourceMethodName()); 109: buf.append(lineSep); 110: 111: buf.append(record.getLevel()); 112: buf.append(": "); 113: buf.append(formatMessage(record)); 114: 115: buf.append(lineSep); 116: 117: return buf.toString(); 118: } 119: }
GNU Classpath (0.20) |