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annotate src/luan/modules/logging/LuanLogger.java @ 1578:c922446f53aa

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immutable threading
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 08 Feb 2021 14:16:19 -0700
parents 8fbcc4747091
children f48db13ae2d9
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1 package luan.modules.logging;
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2
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3 import goodjava.logging.Logger;
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4 import goodjava.logging.LoggerFactory;
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5 import goodjava.logger.LoggingFactory;
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6 import goodjava.logger.GoodLoggerFactory;
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7 import goodjava.logger.Appender;
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8 import goodjava.logger.ThreadLocalAppender;
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9 import goodjava.logger.SimpleConfigurer;
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10 import goodjava.logger.Level;
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11 import luan.Luan;
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12 import luan.LuanException;
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15 public final class LuanLogger {
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16 private final Logger logger;
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17
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18 public LuanLogger(String name) {
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19 this.logger = LoggerFactory.getLogger(name);
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20 }
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21
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22 public void error(Luan luan,Object obj) throws LuanException {
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23 logger.error( luan.luanToString(obj) );
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24 }
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25
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26 public void warn(Luan luan,Object obj) throws LuanException {
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27 logger.warn( luan.luanToString(obj) );
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28 }
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30 public void info(Luan luan,Object obj) throws LuanException {
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31 logger.info( luan.luanToString(obj) );
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32 }
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33
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34 public void debug(Luan luan,Object obj) throws LuanException {
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35 logger.debug( luan.luanToString(obj) );
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36 }
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38
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39 private static final String KEY = "Logger.Appender";
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40 private static volatile Appender globalAppender = GoodLoggerFactory.DEFAULT_APPENDER;
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41
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42 public static synchronized void initThreadLogging() {
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43 if( !(globalAppender instanceof ThreadLocalAppender) ) {
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44 if( !(LoggerFactory.implementation instanceof LoggingFactory) )
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45 throw new RuntimeException("must use goodjava.logger for thread logging");
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46 globalAppender = new ThreadLocalAppender(globalAppender);
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47 configure();
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48 }
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49 }
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50
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51 public static void startThreadLogging(Luan luan) {
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52 if( !(globalAppender instanceof ThreadLocalAppender) )
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53 return;
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54 ThreadLocalAppender tla = (ThreadLocalAppender)globalAppender;
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55 Appender appender;
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56 synchronized(luan) {
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57 appender = (Appender)luan.registry().get(KEY);
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58 }
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59 if( appender == null )
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60 appender = tla.defaultAppender;
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61 tla.threadLocal.set(appender);
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62 }
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63
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64 public static void endThreadLogging() {
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65 if( !(globalAppender instanceof ThreadLocalAppender) )
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66 return;
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67 ThreadLocalAppender tla = (ThreadLocalAppender)globalAppender;
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68 tla.threadLocal.remove();
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69 }
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70
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71 public static boolean isConfigured() {
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72 if( !(LoggerFactory.implementation instanceof LoggingFactory) )
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73 return true;
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74 return GoodLoggerFactory.getConfigurer() != GoodLoggerFactory.DEFAULT_CONFIGURER;
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75 }
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76
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77 public static void configure(Luan luan,Appender appender) {
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78 if( globalAppender instanceof ThreadLocalAppender ) {
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79 ThreadLocalAppender tla = (ThreadLocalAppender)globalAppender;
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80 if( tla.threadLocal.get() != null ) {
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81 luan.registry().put(KEY,appender);
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82 tla.threadLocal.set(appender);
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83 } else {
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84 tla.defaultAppender = appender;
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85 }
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86 } else {
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87 globalAppender = appender;
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88 configure();
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89 }
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90 }
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91
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92 private static void configure() {
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93 GoodLoggerFactory.setConfigurer( new SimpleConfigurer(Level.INFO,globalAppender) );
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94 }
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96 }