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package org.webmacro.util; |
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import org.webmacro.InitException; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.util.Enumeration; |
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import java.util.Properties; |
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import java.util.StringTokenizer; |
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public class Settings |
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{ |
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| 45 | 54 | abstract public static class ListSettingHandler |
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{ |
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abstract public void processSetting (String settingKey, |
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String settingValue); |
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} |
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| 52 | 2 | protected static final String[] stringArray = new String[0]; |
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private Properties _props; |
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public Settings () |
| 60 | 92 | { |
| 61 | 92 | _props = new Properties(); |
| 62 | 92 | } |
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public Settings (String settingsFile) |
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throws InitException, IOException |
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{ |
| 71 | 2 | this(); |
| 72 | 2 | load(settingsFile); |
| 73 | 2 | } |
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public Settings (URL settingsFile) |
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throws InitException, IOException |
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{ |
| 82 | 0 | this(); |
| 83 | 0 | load(settingsFile); |
| 84 | 0 | } |
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protected Settings (Properties values) |
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{ |
| 93 | 0 | this(); |
| 94 | 0 | load(values); |
| 95 | 0 | } |
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public Settings (Settings defaults) |
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{ |
| 103 | 0 | this(); |
| 104 | 0 | load(defaults); |
| 105 | 0 | } |
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public void load (String fileName) throws InitException, IOException |
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{ |
| 114 | 2 | ClassLoader cl = this.getClass().getClassLoader(); |
| 115 | 2 | URL u = (cl == null) ? null : cl.getResource(fileName); |
| 116 | 2 | if (u == null) |
| 117 | 0 | u = ClassLoader.getSystemResource(fileName); |
| 118 | 2 | if (u == null) |
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try |
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{ |
| 121 | 0 | u = new URL("file:" + fileName); |
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} |
| 123 | 0 | catch (MalformedURLException e) |
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{ |
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| 126 | 0 | } |
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; |
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| 129 | 2 | if (u == null) |
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{ |
| 131 | 0 | StringBuffer error = new StringBuffer(); |
| 132 | 0 | error.append("Unable to load the properties file: "); |
| 133 | 0 | error.append(fileName); |
| 134 | 0 | error.append(" via the class path\n"); |
| 135 | 0 | error.append("This indicates a configuration error."); |
| 136 | 0 | throw new InitException(error.toString()); |
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} |
| 138 | 2 | load(u); |
| 139 | 2 | } |
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public void load (URL u) throws IOException |
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{ |
| 146 | 2 | InputStream in = u.openStream(); |
| 147 | 2 | _props.load(in); |
| 148 | 2 | in.close(); |
| 149 | 2 | } |
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public void load (InputStream in) throws IOException |
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{ |
| 156 | 0 | _props.load(in); |
| 157 | 0 | } |
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public void load (Settings defaults) |
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{ |
| 164 | 6 | String keys[] = defaults.getKeys(); |
| 165 | 606 | for (int i = 0; i < keys.length; i++) |
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{ |
| 167 | 600 | _props.setProperty(keys[i], defaults.getSetting(keys[i])); |
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} |
| 169 | 6 | } |
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public void load (Properties props, String prefix) |
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{ |
| 177 | 8 | Enumeration e = props.propertyNames(); |
| 178 | 8 | String dotPrefix = (prefix == null) ? "" : prefix + "."; |
| 179 | 326 | while (e.hasMoreElements()) |
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{ |
| 181 | 318 | String key = (String) e.nextElement(); |
| 182 | 318 | if (prefix == null) |
| 183 | 0 | setProperty(_props,key, props.getProperty(key)); |
| 184 | 318 | else if (key.startsWith(dotPrefix)) { |
| 185 | 0 | setProperty(_props,key.substring(dotPrefix.length()), |
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props.getProperty(key)); |
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} |
| 188 | 318 | } |
| 189 | 8 | } |
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private static void setProperty(Properties props, String key, String value) { |
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| 193 | 0 | props.setProperty(key, value); |
| 194 | 0 | } |
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public void load (Properties props) |
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{ |
| 200 | 0 | load(props, null); |
| 201 | 0 | } |
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public boolean containsKey (String key) |
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{ |
| 208 | 1842 | return _props.containsKey(key); |
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} |
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public String getSetting (String key) |
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{ |
| 218 | 3224 | String prop = _props.getProperty(key); |
| 219 | 3224 | if (prop != null) |
| 220 | 3056 | prop = prop.trim(); |
| 221 | 3224 | if (prop != null |
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&& prop.length() > 2 |
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&& prop.charAt(0) == '"' |
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&& prop.charAt(prop.length() - 1) == '"') |
| 225 | 0 | prop = prop.substring(1, prop.length() - 1); |
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| 227 | 3224 | return prop; |
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} |
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public String getSetting (String key, String defaultValue) |
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{ |
| 235 | 132 | String ret = getSetting(key); |
| 236 | 132 | return (ret != null) ? ret : defaultValue; |
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} |
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public int getIntegerSetting (String key) |
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{ |
| 244 | 0 | return getIntegerSetting(key, 0); |
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} |
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public int getIntegerSetting (String key, int defaultValue) |
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{ |
| 252 | 1794 | if (containsKey(key)) |
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{ |
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try |
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{ |
| 256 | 1746 | return Integer.parseInt(getSetting(key)); |
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} |
| 258 | 0 | catch (Exception e) |
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{ |
| 260 | 0 | return defaultValue; |
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} |
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} |
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else |
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{ |
| 265 | 48 | return defaultValue; |
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} |
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} |
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public boolean getBooleanSetting (String key) |
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{ |
| 276 | 24 | String setting = getSetting(key); |
| 277 | 24 | return ((setting != null) && |
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((setting.equalsIgnoreCase("on")) |
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|| (setting.equalsIgnoreCase("true")) |
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|| (setting.equalsIgnoreCase("yes")))); |
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} |
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public boolean getBooleanSetting (String key, boolean defaultValue) |
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{ |
| 288 | 0 | if (containsKey(key)) |
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{ |
| 290 | 0 | return getBooleanSetting(key); |
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} |
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else |
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{ |
| 294 | 0 | return defaultValue; |
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} |
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} |
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public String[] getKeys () |
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{ |
| 303 | 66 | return (String[]) _props.keySet().toArray(stringArray); |
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} |
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public Properties getAsProperties () |
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{ |
| 311 | 0 | String[] keys = getKeys(); |
| 312 | 0 | Properties p = new Properties(); |
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| 314 | 0 | for (int i = 0; i < keys.length; i++) |
| 315 | 0 | p.setProperty(keys[i], getSetting(keys[i])); |
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| 317 | 0 | return p; |
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} |
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public void processListSetting (String settingName, ListSettingHandler h) |
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{ |
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| 335 | 54 | String listNames = getSetting(settingName); |
| 336 | 54 | if (listNames != null) |
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{ |
| 338 | 30 | Enumeration denum = new StringTokenizer(listNames); |
| 339 | 30 | while (denum.hasMoreElements()) |
| 340 | 0 | h.processSetting("", ((String) denum.nextElement())); |
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} |
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| 343 | 54 | Settings s = new SubSettings(this, settingName); |
| 344 | 54 | String[] keys = s.getKeys(); |
| 345 | 300 | for (int i = 0; i < keys.length; i++) |
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{ |
| 347 | 246 | String value = s.getSetting(keys[i]).trim(); |
| 348 | 246 | if (value.equals("")) |
| 349 | 0 | continue; |
| 350 | 246 | h.processSetting(keys[i], value); |
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} |
| 352 | 54 | } |
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public static void main (String arg[]) throws Exception |
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{ |
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| 361 | 0 | Settings s = new Settings(); |
| 362 | 0 | s.load("Test.properties"); |
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| 364 | 0 | Settings sb = new SubSettings(s, "b"); |
| 365 | 0 | String[] keys = sb.getKeys(); |
| 366 | 0 | for (int i = 0; i < keys.length; i++) |
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{ |
| 368 | 0 | System.out.println("sub-prop " + keys[i] + " = " + sb.getSetting(keys[i])); |
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} |
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| 371 | 0 | Settings ssb = new SubSettings(sb, "b"); |
| 372 | 0 | keys = ssb.getKeys(); |
| 373 | 0 | for (int i = 0; i < keys.length; i++) |
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{ |
| 375 | 0 | System.out.println("sub-sub-prop " + keys[i] + " = " + ssb.getSetting(keys[i])); |
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} |
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| 378 | 0 | System.out.println("LogTraceExceptions is: " + s.getBooleanSetting("LogTraceExceptions")); |
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| 380 | 0 | } |
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} |
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