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annotate src/luan/modules/logging/Log4j.java @ 1332:11b7e11f9ed5

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cleaner logging
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 12 Feb 2019 21:50:26 -0700
parents src/luan/modules/logging/LuanLogger.java@307e76ccd0d6
children 25746915a241
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1 package luan.modules.logging;
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2
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3 import org.apache.log4j.Logger;
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4 import org.apache.log4j.LogManager;
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5 import org.apache.log4j.Hierarchy;
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6 import org.apache.log4j.Level;
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7 import org.apache.log4j.spi.LoggerRepository;
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8 import org.apache.log4j.spi.RootLogger;
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9 import org.apache.log4j.spi.RepositorySelector;
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10 import luan.LuanState;
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11 import luan.LuanException;
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12 import luan.LuanTable;
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14
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15 public final class Log4j {
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16 private static String KEY = "Logger.Repository";
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17
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18 public static void newLoggerRepository(LuanState luan) throws LuanException {
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19 LoggerRepository lr = new Hierarchy(new RootLogger(Level.DEBUG));
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20 luan.registry().put(KEY,lr);
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21 LuanTable module = (LuanTable)luan.require("luan:logging/Log4j.luan");
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22 module.call( "init_root" );
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23 }
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24
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25 private static final LoggerRepository defaultLoggerRepository = LogManager.getLoggerRepository();
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26
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27 private static LoggerRepository getLoggerRepository(LuanState luan) {
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28 LoggerRepository lr = (LoggerRepository)luan.registry().get(KEY);
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29 return lr != null ? lr : defaultLoggerRepository;
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30 }
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31
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32 static {
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33 LogManager.setRepositorySelector( new RepositorySelector() {
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34 public LoggerRepository getLoggerRepository() {
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35 LuanState luan = LuanLogger.luan();
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36 return luan==null ? defaultLoggerRepository : Log4j.getLoggerRepository(luan);
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37 }
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38 }, new Object() );
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39 }
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40
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41 public static Logger getRootLogger(LuanState luan) {
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42 return getLoggerRepository(luan).getRootLogger();
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43 }
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44
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45 public static Logger getLogger(LuanState luan,String name) {
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46 return getLoggerRepository(luan).getLogger(name);
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47 }
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48 }