/**
* JOnAS: Java(TM) Open Application Server
* Copyright (C) 1999 Bull S.A.
* Contact: jonas-team@objectweb.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or 1any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* Initial developer: Florent BENOIT
* --------------------------------------------------------------------------
* $Id: I18n.java 4840 2004-05-28 14:02:57Z sauthieg $
* --------------------------------------------------------------------------
*/
package org.objectweb.jonas_lib;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
/**
* This class defines the way for getting message with
* ResourceBundle for different language
* Inspired from http://java.sun.com/docs/books/tutorial/i18n/
* @author Florent Benoit
*/
public class I18n {
/**
* Name of the resource bundle to use
*/
private static final String RESOURCE_BUNDLE_NAME = "I18n";
/**
* List of our I18n objects
*/
private static Map bundles = null;
/**
* Internal Resource Bundle
*/
private ResourceBundle resourceBundle = null;
/**
* Constructor (private access, use getInstance instead)
* @param packageName name of the package for the bundle
* @param cl the classloader used to load bundle
*/
private I18n(String packageName, ClassLoader cl) {
String bundleName = packageName + "." + RESOURCE_BUNDLE_NAME;
// Resource bundle is on the form packagename.I18n.properties
try {
Locale locale = Locale.getDefault();
resourceBundle = ResourceBundle.getBundle(bundleName, locale, cl);
} catch (MissingResourceException mre) {
String err = "Error when trying to get a ResourceBundle for package '" + packageName + "' : " + mre.getMessage();
throw new IllegalStateException(err);
}
}
/**
* Gets the instance for a given class
* @param c the class for which we want a bundle
* @return I18n object
*/
public static I18n getInstance(Class c) {
return getInstance(c.getPackage().getName());
}
/**
* Gets the instance for a given class
* @param c the class for which we want a bundle
* @param cl the classloader used to load bundle
* @return I18n object
*/
public static I18n getInstance(Class c, ClassLoader cl) {
return getInstance(c.getPackage().getName(), cl);
}
/**
* Gets the instance for a given package
* @param packageName the package for which we want a bundle
* @return I18n object
*/
public static I18n getInstance(String packageName) {
return getInstance(packageName, Thread.currentThread().getContextClassLoader());
}
/**
* Gets the instance for a given package
* @param packageName the package for which we want a bundle
* @param cl the classloader used to load bundle
* @return I18n object
*/
public static I18n getInstance(String packageName, ClassLoader cl) {
if (bundles == null) {
bundles = new HashMap();
}
I18n i18n = (I18n) bundles.get(packageName);
if (i18n != null) {
return i18n;
}
i18n = new I18n(packageName, cl);
bundles.put(packageName, i18n);
return i18n;
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param args the object arguments for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object[] args) {
String value = getMessage(key);
return MessageFormat.format(value, args);
}
/**
* Gets the value of the given key
* @param key the keystring to retrieve
* @return the value for the given key or the key if the value can not be found
*/
public String getMessage(String key) {
String ret = null;
// No bundle, return key
if (resourceBundle == null) {
return key;
}
try {
ret = resourceBundle.getString(key);
} catch (MissingResourceException mre) {
// key not found, return the key
ret = key;
}
return ret;
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param obj the object argument for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object obj) {
return getMessage(key, new Object[] {obj});
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param obj1 the first object argument for the formatter
* @param obj2 the second object argument for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object obj1, Object obj2) {
return getMessage(key, new Object[] {obj1, obj2 });
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param obj1 the first object argument for the formatter
* @param obj2 the second object argument for the formatter
* @param obj3 the third object argument for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object obj1, Object obj2, Object obj3) {
return getMessage(key, new Object[] {obj1, obj2, obj3 });
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param obj1 argument for the formatter
* @param obj2 argument for the formatter
* @param obj3 argument for the formatter
* @param obj4 argument for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object obj1, Object obj2, Object obj3, Object obj4) {
return getMessage(key, new Object[] {obj1, obj2, obj3, obj4 });
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param obj1 argument for the formatter
* @param obj2 argument for the formatter
* @param obj3 argument for the formatter
* @param obj4 argument for the formatter
* @param obj5 argument for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object obj1, Object obj2, Object obj3, Object obj4, Object obj5) {
return getMessage(key, new Object[] {obj1, obj2, obj3, obj4, obj5 });
}
/**
* Gets the formatted string with the given arguments
* @param key the keystring on which to apply arguments
* @param obj1 argument for the formatter
* @param obj2 argument for the formatter
* @param obj3 argument for the formatter
* @param obj4 argument for the formatter
* @param obj5 argument for the formatter
* @param obj6 argument for the formatter
* @return the formatted string
*/
public String getMessage(String key, Object obj1, Object obj2, Object obj3, Object obj4, Object obj5, Object obj6) {
return getMessage(key, new Object[] {obj1, obj2, obj3, obj4, obj5, obj6 });
}
}
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