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繧呈嶌縺崎ｾｼ繧?ぜ縺ｮ PrintWriter 繧堤ｮ｡逅?☆繧九け繝ｩ繧ｹ縺ｧ縺吶?
030     *
031     * 螳滄圀縺ｮ Log 縺ｮ譖ｸ縺崎ｾｼ縺ｿ縺ｫ縺ｯ??LogSender 繧貞茜逕ｨ縺励※荳九＆縺??
032     *
033     * @og.group 繧ｨ繝ｩ繝ｼ蜃ｦ逅?
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             * 繝?ヵ繧ｩ繝ｫ繝医さ繝ｳ繧ｹ繝医Λ繧ｯ繧ｿ繝ｼ
046             * private 縺ｫ縺励※?後さ繝ｳ繧ｹ繝医Λ繧ｯ繧ｿ繝ｼ縺ｮ菴懈?繧偵＆縺帙↑縺?ｧ倥↓縺励※縺?∪縺吶?
047             *
048             */
049            private LogWriter() {
050            }
051    
052            /**
053             * Log繝輔ぃ繧､繝ｫ縺ｮ蜃ｺ蜉帛?繧定ｨｭ螳壹＠縺ｾ縺吶?
054             *
055             * @og.rev 4.1.0.1 (2008/01/23) 譁ｰ隕丈ｽ懈?
056             *
057             * @param   url 蜃ｺ蜉帛?
058             */
059            public static synchronized void init( final String url ) {
060                    logFileUrl = url;
061            }
062    
063            /**
064             * Log繧呈嶌縺榊?縺励∪縺吶?
065             *
066             * @og.rev 4.1.0.1 (2008/01/23) 蜃ｺ蜉帶凾髢薙ｒ蜃ｺ蜉帙☆繧九?
067             * @og.rev 5.5.7.2 (2012/10/09) HybsDateUtil 繧貞茜逕ｨ縺吶ｋ繧医≧縺ｫ菫ｮ豁｣縺励∪縺吶?
068             *
069             * @param   message 繝｡繝?そ繝ｼ繧ｸ
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 繧貞茜逕ｨ
079                    writer.flush();
080            }
081    
082            /**
083             * 萓句､悶?繧ｹ繧ｿ繝?け繝医Ξ繝ｼ繧ｹ繧鱈ogWriter縺ｮPrintWriter縺ｫ譖ｸ縺榊?縺励∪縺吶?
084             *
085             * @og.rev 4.1.0.1 (2008/01/23) 譁ｰ隕丈ｽ懈?
086             * @og.rev 4.3.4.5 (2009/01/08) null繝√ぉ繝?け霑ｽ蜉?
087             *
088             * @param   th 繧ｹ繧ｿ繝?け繝医Ξ繝ｼ繧ｹ縺ｮ蜿門ｾ怜?Throwable繧ｪ繝悶ず繧ｧ繧ｯ繝?
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 繧?close() 縺励∪縺吶?
099             *
100             */
101            public static synchronized void close() {
102                    if( writer != null ) { writer.close(); }
103                    writer = null;
104            }
105    
106            /**
107             * 霑ｽ蜉?Δ繝ｼ繝峨〒菴懈?縺励◆?訓rintWriter 繧貞叙蠕励＠縺ｾ縺吶?
108             * PrintWriter 縺ｯ?後す繝ｳ繧ｰ繝ｫ繝医?繝ｳ縺ｨ縺励※?悟髪荳?ｭ伜惠縺輔○縺ｦ縺?∪縺吶?
109             *
110             * @og.rev 4.1.0.1 (2008/01/23) 繝ｭ繧ｰ繝輔ぃ繧､繝ｫ蜃ｺ蜉帛?繧貞､夜Κ縺九ｉ謖?ｮ壹☆繧九?
111             *
112             * @return 霑ｽ蜉?Δ繝ｼ繝峨〒菴懈?縺励◆PrintWriter
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                            // 譌･莉倥ヵ繧ｩ繝ｼ繝??繝輔ぃ繧､繝ｫ蜷阪ｒ螟画鋤縺励∪縺吶?
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 = "繝ｭ繧ｰ繝ｩ繧､繧ｿ繝ｼ縺御ｽ懈?縺ｧ縺阪∪縺帙ｓ縲?" + logFileUrl + "]";
131    //                              throw new HybsSystemException( errMsg, e ); // 3.5.5.4 (2004/04/15) 蠑墓焚縺ｮ荳ｦ縺ｳ鬆?､画峩
132                                    throw new RuntimeException( errMsg, ex );
133                            }
134                    }
135            }
136    }