001 /*
002 * Copyright (c) 2009 The openGion Project.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
013 * either express or implied. See the License for the specific language
014 * governing permissions and limitations under the License.
015 */
016 package org.opengion.fukurou.util;
017
018 import java.io.BufferedWriter;
019 import java.io.File;
020 import java.io.FileWriter;
021 import java.io.IOException;
022 import java.io.PrintWriter;
023 // import java.text.DateFormat;
024 // import java.text.SimpleDateFormat;
025 // import java.util.Date;
026 // import java.util.Locale;
027
028 /**
029 * Logを書ãè¾¼ã‚?‚ºã® PrintWriter を管ç?™ã‚‹ã‚¯ãƒ©ã‚¹ã§ã™ã?
030 *
031 * 実際㮠Log ã®æ›¸ãè¾¼ã¿ã«ã¯??LogSender を利用ã—ã¦ä¸‹ã•ã??
032 *
033 * @og.group エラー処ç?
034 *
035 * @version 4.0
036 * @author Kazuhiko Hasegawa
037 * @since JDK5.0,
038 */
039 public final class LogWriter {
040 private static PrintWriter writer = null;
041
042 private static String logFileUrl = null; // 4.1.0.1 (2008/01/23)
043
044 /**
045 * ãƒ?ƒ•ォルトコンストラクター
046 * private ã«ã—ã¦?Œã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ãƒ¼ã®ä½œæ?ã‚’ã•ã›ãªã?§˜ã«ã—ã¦ã?¾ã™ã?
047 *
048 */
049 private LogWriter() {
050 }
051
052 /**
053 * Logファイルã®å‡ºåŠ›å?ã‚’è¨å®šã—ã¾ã™ã?
054 *
055 * @og.rev 4.1.0.1 (2008/01/23) æ–°è¦ä½œæ?
056 *
057 * @param url 出力å?
058 */
059 public static synchronized void init( final String url ) {
060 logFileUrl = url;
061 }
062
063 /**
064 * Logを書ãå?ã—ã¾ã™ã?
065 *
066 * @og.rev 4.1.0.1 (2008/01/23) 出力時間を出力ã™ã‚‹ã?
067 * @og.rev 5.5.7.2 (2012/10/09) HybsDateUtil を利用ã™ã‚‹ã‚ˆã†ã«ä¿®æ£ã—ã¾ã™ã?
068 *
069 * @param message メãƒ?‚»ãƒ¼ã‚¸
070 */
071 public static synchronized void log( final String message ) {
072 if( writer == null ) {
073 writer = getPrintWriter();
074 }
075 // writer.println( message );
076 // DateFormat formatter = new SimpleDateFormat( "yyyy/MM/dd HH:mm:ss.SSS",Locale.JAPAN );
077 // writer.println( "[WriteTime= " + formatter.format( new Date() ) + "] " + message ); // 4.1.0.1 (2008/01/23)
078 writer.println( "[WriteTime= " + HybsDateUtil.getDate( "yyyy/MM/dd HH:mm:ss.SSS" ) + "] " + message ); // 5.5.7.2 (2012/10/09) HybsDateUtil を利用
079 writer.flush();
080 }
081
082 /**
083 * 例外ã?スタãƒ?‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ã‚’LogWriterã®PrintWriterã«æ›¸ãå?ã—ã¾ã™ã?
084 *
085 * @og.rev 4.1.0.1 (2008/01/23) æ–°è¦ä½œæ?
086 * @og.rev 4.3.4.5 (2009/01/08) nullãƒã‚§ãƒ?‚¯è¿½åŠ?
087 *
088 * @param th スタãƒ?‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ã®å–å¾—å?Throwableオブジェクãƒ?
089 */
090 public static synchronized void log( final Throwable th ) {
091 if( writer == null ) {
092 writer = getPrintWriter();
093 }
094 th.printStackTrace( writer );
095 }
096
097 /**
098 * PrintWriter ã‚?close() ã—ã¾ã™ã?
099 *
100 */
101 public static synchronized void close() {
102 if( writer != null ) { writer.close(); }
103 writer = null;
104 }
105
106 /**
107 * 追åŠ?ƒ¢ãƒ¼ãƒ‰ã§ä½œæ?ã—ãŸ?ŒPrintWriter ã‚’å–å¾—ã—ã¾ã™ã?
108 * PrintWriter ã¯?Œã‚·ãƒ³ã‚°ãƒ«ãƒˆã?ンã¨ã—ã¦?Œå”¯ä¸?˜åœ¨ã•ã›ã¦ã?¾ã™ã?
109 *
110 * @og.rev 4.1.0.1 (2008/01/23) ãƒã‚°ãƒ•ァイル出力å?を外部ã‹ã‚‰æŒ?®šã™ã‚‹ã?
111 *
112 * @return 追åŠ?ƒ¢ãƒ¼ãƒ‰ã§ä½œæ?ã—ãŸPrintWriter
113 */
114 private static synchronized PrintWriter getPrintWriter() {
115 // String logFileName = HybsSystem.url2dir( HybsSystem.sys( "SYS_LOG_URL" ) );
116
117 if( logFileUrl == null || logFileUrl.length() == 0 ) {
118 return new PrintWriter( System.err );
119 }
120 else {
121 // 日付フォーãƒ??ファイルåを変æ›ã—ã¾ã™ã?
122 DateSet dateSet = new DateSet();
123 logFileUrl = dateSet.changeString(logFileUrl );
124
125 try {
126 File logFile = new File( logFileUrl );
127 return new PrintWriter( new BufferedWriter( new FileWriter( logFile, true ) ) );
128 }
129 catch( IOException ex ) {
130 String errMsg = "ãƒã‚°ãƒ©ã‚¤ã‚¿ãƒ¼ãŒä½œæ?ã§ãã¾ã›ã‚“ã€?" + logFileUrl + "]";
131 // throw new HybsSystemException( errMsg, e ); // 3.5.5.4 (2004/04/15) 引数ã®ä¸¦ã³é ?¤‰æ›´
132 throw new RuntimeException( errMsg, ex );
133 }
134 }
135 }
136 }