/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
// www.projectforge.org
//
// Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de)
//
// ProjectForge is dual-licensed.
//
// This community edition is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 3 of the License.
//
// This community edition 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 General
// Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, see http://www.gnu.org/licenses/.
//
/////////////////////////////////////////////////////////////////////////////
package org.projectforge.user;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.ResourceBundle;
import org.projectforge.plugins.core.AbstractPlugin;
import org.projectforge.plugins.core.PluginsRegistry;
/**
* ThreadLocal context.
* @author Kai Reinhard (k.reinhard@micromata.de)
*/
public class I18nHelper
{
private static final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(I18nHelper.class);
public static final String BUNDLE_NAME = "I18nResources";
/**
* Use-ful for using the locale of another user (e. g. the receiver of an e-mail).
* @param locale If null, then the context user's locale is assumed.
* @return
*/
private static ResourceBundle getResourceBundle(final String bundleName, final Locale locale)
{
final ResourceBundle resourceBundle = locale != null ? ResourceBundle.getBundle(bundleName, locale) : ResourceBundle
.getBundle(bundleName);
return resourceBundle;
}
public static String getLocalizedMessage(final Locale locale, final String messageKey, final Object... params)
{
if (params == null) {
return getLocalizedString(locale, messageKey);
}
return MessageFormat.format(getLocalizedString(locale, messageKey), params);
}
private static String getString(final String bundleName, final Locale locale, final String key)
{
try {
final ResourceBundle bundle = getResourceBundle(bundleName, locale);
if (bundle.containsKey(key) == true) {
return bundle.getString(key);
}
} catch (final Exception ex) {
log.warn("Resource key '" + key + "' not found for locale '" + locale + "'");
}
return null;
}
public static String getLocalizedString(final Locale locale, final String key)
{
try {
String translation = getString(BUNDLE_NAME, locale, key);
if (translation != null) {
return translation;
}
for (final AbstractPlugin plugin : PluginsRegistry.instance().getPlugins()) {
if (plugin.getResourceBundleName() == null) {
continue;
}
translation = getString(plugin.getResourceBundleName(), locale, key);
if (translation != null) {
return translation;
}
}
} catch (Exception ex) { // MissingResourceException or NullpointerException
log.warn("Resource key '" + key + "' not found for locale '" + locale + "'");
}
return "???" + key + "???";
}
}