| commit | author | age | ||
| ca8e1e | 1 | /* |
| U | 2 | Transit - Remote procedure calls made simple |
| 3 | Copyright (c) 2012 Ulrich Hilger | |
| 4 | ||
| 5 | This program is free software: you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU Affero General Public License as published by | |
| 7 | the Free Software Foundation, either version 3 of the License, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU Affero General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Affero General Public License | |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 | */ | |
| 18 | ||
| 19 | package de.uhilger.transit.web; | |
| 20 | ||
| 21 | import java.io.File; | |
| 22 | import java.util.logging.FileHandler; | |
| 23 | import java.util.logging.Handler; | |
| 24 | import java.util.logging.Level; | |
| 25 | import java.util.logging.Logger; | |
| 26 | ||
| 27 | import javax.servlet.ServletContext; | |
| 28 | import javax.servlet.ServletContextEvent; | |
| 29 | import javax.servlet.ServletContextListener; | |
| 30 | ||
| 31 | import de.uhilger.transit.TextLogFormatter; | |
| 32 | ||
| 33 | /** | |
| 34 | * Die Klasse WebApp kann von webanwendungen als Basisklasse verwendet | |
| 35 | * werden. Sie etabliert Dinge, die von einer Webanwendung zentral | |
| 36 | * benoetigt werden wie z.B. Protokollierung | |
| 37 | * | |
| 38 | * Die Klasse WebApp implementiert die Schnittstell ServletContextListener. | |
| 39 | * Wird sie als Listener im Deployment Descriptor einer Webanwendung eingebunden, | |
| 40 | * werden ihre Funktionen zum Start und zum Ende ihrer Laufzeit wirksam. | |
| 41 | */ | |
| 42 | public class WebApp implements ServletContextListener { | |
| 43 | ||
| 6b1009 | 44 | /*public static final String P_LOGGERNAME = "loggername"; |
| ca8e1e | 45 | public static final String P_LOGDIRNAME = "logdirname"; |
| U | 46 | public static final String P_LOGFILENAME = "logfilename"; |
| 47 | public static final String P_LOGFILESIZE = "logfilesize"; | |
| 48 | public static final String P_LOGFILECOUNT = "logfilecount"; | |
| 6b1009 | 49 | public static final String P_LOGLEVEL = "loglevel";*/ |
| ca8e1e | 50 | |
| U | 51 | public static final String P_DEBUG = "debug"; |
| 52 | ||
| 53 | public static final String WEBAPP_LOGGER = "webapplogger"; | |
| 54 | ||
| 6b1009 | 55 | /* |
| ca8e1e | 56 | private Level getLevel(String levelStr) { |
| U | 57 | Level level = Level.INFO; |
| 58 | if(levelStr.equalsIgnoreCase(Level.ALL.getName())) { | |
| 59 | level = Level.ALL; | |
| 60 | } else if(levelStr.equalsIgnoreCase(Level.CONFIG.getName())) { | |
| 61 | level = Level.CONFIG; | |
| 62 | } else if(levelStr.equalsIgnoreCase(Level.FINEST.getName())) { | |
| 63 | level = Level.FINEST; | |
| 64 | } else if(levelStr.equalsIgnoreCase(Level.FINER.getName())) { | |
| 65 | level = Level.FINER; | |
| 66 | } else if(levelStr.equalsIgnoreCase(Level.FINEST.getName())) { | |
| 67 | level = Level.FINE; | |
| 68 | } else if(levelStr.equalsIgnoreCase(Level.OFF.getName())) { | |
| 69 | level = Level.OFF; | |
| 70 | } else if(levelStr.equalsIgnoreCase(Level.SEVERE.getName())) { | |
| 71 | level = Level.SEVERE; | |
| 72 | } else if(levelStr.equalsIgnoreCase(Level.WARNING.getName())) { | |
| 73 | level = Level.WARNING; | |
| 74 | } | |
| 75 | return level; | |
| 76 | } | |
| 6b1009 | 77 | */ |
| ca8e1e | 78 | public void contextInitialized(ServletContextEvent event) { |
| U | 79 | ServletContext servletContext = event.getServletContext(); |
| 6b1009 | 80 | /* |
| ca8e1e | 81 | Object o = servletContext.getAttribute(WEBAPP_LOGGER); |
| 6b1009 | 82 | |
| ca8e1e | 83 | if(o == null) { |
| U | 84 | String loggername = servletContext.getInitParameter(P_LOGGERNAME); // Name der root Package dieser Anwendung |
| 85 | String logdirname = servletContext.getInitParameter(P_LOGDIRNAME); | |
| 86 | String logfilename = servletContext.getInitParameter(P_LOGFILENAME); // etwas wie z.B. "log%g.%u.txt" | |
| 87 | String logfilesize = servletContext.getInitParameter(P_LOGFILESIZE); // Anzahl Bytes | |
| 88 | String logfilecount = servletContext.getInitParameter(P_LOGFILECOUNT); // Anzahl Dateien fuer Rotation | |
| 89 | String loglevel = servletContext.getInitParameter(P_LOGLEVEL); | |
| 90 | FileHandler fh; | |
| 91 | Logger logger = Logger.getLogger(loggername); | |
| 92 | servletContext.setAttribute(WEBAPP_LOGGER, logger); | |
| 93 | try { | |
| 94 | File basis = new File(this.getClass().getResource("/").toURI()); | |
| 95 | File catalinaBase = basis.getParentFile().getParentFile().getParentFile().getParentFile(); | |
| 96 | File f = new File(catalinaBase, logdirname); | |
| 97 | if (!f.exists()) { | |
| 98 | f.mkdirs(); | |
| 99 | } | |
| 100 | fh = new FileHandler(f.getAbsolutePath() + File.separator + logfilename, | |
| 101 | Integer.parseInt(logfilesize), Integer.parseInt(logfilecount), true); | |
| 102 | //fh.setLevel(getLevel(loglevel)); | |
| 103 | fh.setFormatter(new TextLogFormatter()); | |
| 104 | logger.setLevel(getLevel(loglevel)); | |
| 105 | logger.addHandler(fh); | |
| 106 | logger.finest("logger " + loggername + " erzeugt"); | |
| 107 | } catch (Exception e) { | |
| 108 | logger.log(Level.ALL, e.getMessage(), e); | |
| 109 | } | |
| 110 | } else { | |
| 111 | // logger ist schon da | |
| 112 | } | |
| 6b1009 | 113 | */ |
| ca8e1e | 114 | } |
| U | 115 | |
| 116 | public void contextDestroyed(ServletContextEvent event) { | |
| 117 | ServletContext servletContext = event.getServletContext(); | |
| 6b1009 | 118 | /* |
| ca8e1e | 119 | Object o = servletContext.getAttribute(WEBAPP_LOGGER); |
| U | 120 | if(o != null) { |
| 121 | Logger logger = (Logger) o; | |
| 122 | Handler[] handlers = logger.getHandlers(); | |
| 123 | for(int i = 0; i < handlers.length; i++) { | |
| 124 | handlers[i].flush(); // | |
| 125 | if(handlers[i] instanceof FileHandler) { | |
| 126 | ((FileHandler) handlers[i]).close(); | |
| 127 | } | |
| 128 | logger.removeHandler(handlers[i]); | |
| 129 | } | |
| 130 | servletContext.removeAttribute(WEBAPP_LOGGER); | |
| 131 | logger = null; | |
| 132 | } | |
| 6b1009 | 133 | */ |
| ca8e1e | 134 | } |
| U | 135 | |
| 136 | /** | |
| 137 | * Den Logger aus dem ServletContext ermitteln. | |
| 138 | */ | |
| 139 | protected Logger getLogger(ServletContext ctx) { | |
| 140 | Logger logger = null; | |
| 141 | Object o = ctx.getAttribute(WEBAPP_LOGGER); | |
| 142 | if(o != null) { | |
| 143 | logger = (Logger) o; | |
| 144 | } | |
| 145 | return logger; | |
| 146 | } | |
| 147 | } | |
| 148 | ||
