001// --- BEGIN LICENSE BLOCK --- 002/* 003 * Copyright (c) 2009, Mikio L. Braun 004 * All rights reserved. 005 * 006 * Redistribution and use in source and binary forms, with or without 007 * modification, are permitted provided that the following conditions are 008 * met: 009 * 010 * * Redistributions of source code must retain the above copyright 011 * notice, this list of conditions and the following disclaimer. 012 * 013 * * Redistributions in binary form must reproduce the above 014 * copyright notice, this list of conditions and the following 015 * disclaimer in the documentation and/or other materials provided 016 * with the distribution. 017 * 018 * * Neither the name of the Technische Universität Berlin nor the 019 * names of its contributors may be used to endorse or promote 020 * products derived from this software without specific prior 021 * written permission. 022 * 023 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 024 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 025 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 026 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 027 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 028 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 029 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 030 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 031 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 032 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 033 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 034 */ 035// --- END LICENSE BLOCK --- 036 037package org.jblas.util; 038 039/** 040 * 041 */ 042public class Logger { 043 public static final int ERROR = 5; 044 public static final int WARNING = 4; 045 public static final int INFO = 3; 046 public static final int CONFIG = 2; 047 public static final int DEBUG = 1; 048 049 public static final String levelNames[] = { 050 "DEBUG", "CONFIG", "INFO", "WARNING", "ERROR" 051 }; 052 053 private static Logger theLogger = new Logger(); 054 private int level; 055 056 private Logger() { 057 level = INFO; 058 } 059 060 public static Logger getLogger() { 061 return theLogger; 062 } 063 064 public void log(int messageLevel, String msg) { 065 if (level <= messageLevel) { 066 System.err.println("-- org.jblas " + levelNames[messageLevel - 1] + " "+ msg); 067 } 068 } 069 070 public void debug(String msg) { 071 log(DEBUG, msg); 072 } 073 074 public void config(String msg) { 075 log(CONFIG, msg); 076 } 077 078 public void info(String msg) { 079 log(INFO, msg); 080 } 081 082 public void warning(String msg) { 083 log(WARNING, msg); 084 } 085 086 public void error(String msg) { 087 log(ERROR, msg); 088 } 089 090 public void setLevel(int level) { 091 this.level = level; 092 } 093}