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comparison src/org/dancres/blitz/config/ConfigurationFactory.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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1 package org.dancres.blitz.config;
2
3 import java.util.logging.Logger;
4 import java.util.logging.Level;
5
6 import net.jini.config.Configuration;
7 import net.jini.config.ConfigurationProvider;
8 import net.jini.config.ConfigurationException;
9
10 import net.jini.security.BasicProxyPreparer;
11 import net.jini.security.ProxyPreparer;
12
13 import com.sun.jini.config.Config;
14
15 import org.dancres.blitz.Logging;
16
17 public class ConfigurationFactory {
18 static Logger theLogger =
19 Logging.newLogger("org.dancres.blitz.config.ConfigurationFactory",
20 Level.INFO);
21
22 private static String[] theArgs = {"config/blitz.config"};
23
24 static {
25 String myDefault = System.getProperty("org.dancres.blitz.config");
26
27 if (myDefault != null)
28 theArgs = new String[] {myDefault};
29 }
30
31 private static Configuration theConfig;
32
33 public static final String BLITZ_MODULE = "org.dancres.blitz";
34
35 private static final ProxyPreparer DEFAULT_PREPARER =
36 new BasicProxyPreparer();
37
38 /**
39 Configure the arguments for finding a Configuration
40 */
41 public static void setup(String[] anArgs) {
42 theLogger.log(Level.INFO,
43 "ConfigurationFactory will load config from: " +
44 anArgs[0]);
45 theArgs = anArgs;
46 }
47
48 /**
49 Attempt to load configured config file or the default which is
50 "config/blitz.config"
51 */
52 private static synchronized void load() throws ConfigurationException {
53 theLogger.log(Level.INFO, "Loading config from: " + theArgs[0]);
54
55 theConfig =
56 ConfigurationProvider.getInstance(theArgs,
57 ConfigurationFactory.class.getClassLoader());
58 }
59
60 /**
61 Attempt to obtain the configuration
62 */
63 public static synchronized Configuration getConfig()
64 throws ConfigurationException {
65 if (theConfig == null) {
66 load();
67 }
68
69 return theConfig;
70 }
71
72 public static synchronized ProxyPreparer getPreparer(String aName)
73 throws ConfigurationException {
74
75 return (ProxyPreparer)
76 Config.getNonNullEntry(getConfig(), BLITZ_MODULE, aName,
77 ProxyPreparer.class, DEFAULT_PREPARER);
78 }
79
80 public static synchronized Object getEntry(String aName, Class aType)
81 throws ConfigurationException {
82 return getConfig().getEntry(BLITZ_MODULE, aName, aType);
83 }
84
85 public static synchronized Object getEntry(String aName, Class aType,
86 Object aDefault)
87 throws ConfigurationException {
88
89 return getConfig().getEntry(BLITZ_MODULE, aName, aType, aDefault);
90 }
91
92 public static synchronized Object getEntry(String aName, Class aType,
93 Object aDefault, Object aData)
94 throws ConfigurationException {
95 return getConfig().getEntry(BLITZ_MODULE, aName, aType,
96 aDefault, aData);
97 }
98 }