Mercurial > hg > blitz_stable

annotate src/org/dancres/blitz/config/ConfigurationFactory.java @ 32:243c74d599bf

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author Dan Creswell <dan.creswell@gmail.com>
date Sat, 12 Jun 2010 10:41:47 +0100
parents 3dc0c5604566
children
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1 package org.dancres.blitz.config;
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2
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3 import java.util.logging.Logger;
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4 import java.util.logging.Level;
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5
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6 import net.jini.config.Configuration;
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7 import net.jini.config.ConfigurationProvider;
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8 import net.jini.config.ConfigurationException;
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9
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10 import net.jini.security.BasicProxyPreparer;
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11 import net.jini.security.ProxyPreparer;
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12
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13 import com.sun.jini.config.Config;
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14
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15 import org.dancres.blitz.Logging;
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16
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17 public class ConfigurationFactory {
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18 static Logger theLogger =
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19 Logging.newLogger("org.dancres.blitz.config.ConfigurationFactory",
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20 Level.INFO);
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21
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22 private static String[] theArgs = {"config/blitz.config"};
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23
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24 static {
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25 String myDefault = System.getProperty("org.dancres.blitz.config");
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26
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27 if (myDefault != null)
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28 theArgs = new String[] {myDefault};
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29 }
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30
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31 private static Configuration theConfig;
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32
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33 public static final String BLITZ_MODULE = "org.dancres.blitz";
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34
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35 private static final ProxyPreparer DEFAULT_PREPARER =
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36 new BasicProxyPreparer();
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37
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38 /**
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39 Configure the arguments for finding a Configuration
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40 */
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41 public static void setup(String[] anArgs) {
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42 theLogger.log(Level.INFO,
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43 "ConfigurationFactory will load config from: " +
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44 anArgs[0]);
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45 theArgs = anArgs;
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46 }
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47
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48 /**
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49 Attempt to load configured config file or the default which is
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50 "config/blitz.config"
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51 */
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52 private static synchronized void load() throws ConfigurationException {
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53 theLogger.log(Level.INFO, "Loading config from: " + theArgs[0]);
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54
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55 theConfig =
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56 ConfigurationProvider.getInstance(theArgs,
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57 ConfigurationFactory.class.getClassLoader());
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58 }
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59
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60 /**
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61 Attempt to obtain the configuration
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62 */
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63 public static synchronized Configuration getConfig()
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64 throws ConfigurationException {
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65 if (theConfig == null) {
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66 load();
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67 }
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68
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69 return theConfig;
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70 }
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71
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72 public static synchronized ProxyPreparer getPreparer(String aName)
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73 throws ConfigurationException {
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74
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75 return (ProxyPreparer)
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76 Config.getNonNullEntry(getConfig(), BLITZ_MODULE, aName,
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77 ProxyPreparer.class, DEFAULT_PREPARER);
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78 }
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79
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80 public static synchronized Object getEntry(String aName, Class aType)
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81 throws ConfigurationException {
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82 return getConfig().getEntry(BLITZ_MODULE, aName, aType);
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83 }
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84
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85 public static synchronized Object getEntry(String aName, Class aType,
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86 Object aDefault)
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87 throws ConfigurationException {
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88
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89 return getConfig().getEntry(BLITZ_MODULE, aName, aType, aDefault);
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90 }
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91
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92 public static synchronized Object getEntry(String aName, Class aType,
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93 Object aDefault, Object aData)
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94 throws ConfigurationException {
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95 return getConfig().getEntry(BLITZ_MODULE, aName, aType,
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96 aDefault, aData);
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97 }
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98 }