シングルトンで実装し、最初に読み出されたときだけ設定ファイルを読み込む
public class PropUtil {
private static Map<String, String> cache = null;
private static final String[] PROP_FILES = new String[] {
"resources/app",
"resources/message",
"resources/jdbc" };
private static final String[] TRUE_LITERATURES = new String[] {
"1",
"YES",
"TRUE" };
public static boolean getBoolProperty(final String key) {
String val = getProperty(key).toUpperCase();
for (String t : TRUE_LITERATURES) {
if (t.equals(val)) {
return true;
}
}
return false;
};
public static int getIntProperty(final String key) {
return Integer.parseInt(getProperty(key));
}
public static String getProperty(final String key) {
if (cache == null) {
cache = readPropFiles();
}
return cache.get(key);
}
private static synchronized Map<String, String> readPropFiles() {
Map<String, String> retMap = new HashMap<String, String>();
for (String propFile : PROP_FILES) {
PropertyResourceBundle prop =
(PropertyResourceBundle) ResourceBundle.getBundle(propFile);
for (Enumeration<String> keyEnum = prop.getKeys();
keyEnum.hasMoreElements();) {
String propKey = keyEnum.nextElement();
retMap.put(propKey, prop.getString(propKey));
}
}
return retMap;
}
private PropUtil() {
}
}
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