/******************************************************************************
* JBoss, a division of Red Hat *
* Copyright 2009, Red Hat Middleware, LLC, and individual *
* contributors as indicated by the @authors tag. See the *
* copyright.txt in the distribution for a full listing of *
* individual contributors. *
* *
* This 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 (at your option) any later version. *
* *
* This software 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 software; if not, write to the Free *
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
* 02110-1301 USA, or see the FSF site: http://www.fsf.org. *
******************************************************************************/
package org.gatein.common.i18n;
import org.gatein.common.io.IOTools;
import java.io.IOException;
import java.io.InputStream;
import java.util.Locale;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
/**
* @author <a href="mailto:julien@jboss.org">Julien Viet</a>
* @version $Revision: 7374 $
*/
public class ComplexResourceBundleFactory implements ResourceBundleFactory
{
/** . */
private final ClassLoader resourceLoader;
/** . */
private final String baseName;
public ComplexResourceBundleFactory(ClassLoader resourceLoader, String baseName)
{
this.resourceLoader = resourceLoader;
this.baseName = baseName;
}
public ResourceBundle getBundle(Locale locale) throws IllegalArgumentException
{
if (locale == null)
{
throw new IllegalArgumentException();
}
//
for (BundleName.Iterator iterator = new BundleName.Iterator(baseName, locale); iterator.hasNext();)
{
BundleName name = iterator.next();
// We don't want to process the base name only with the specified locale
// in order to respect the sequence of candidate bundle names
if (!iterator.hasNext())
{
break;
}
//
ResourceBundle bundle = lookup(name.toString());
if (bundle != null)
{
return bundle;
}
}
// Try default locale
for (BundleName.Iterator iterator = new BundleName.Iterator(baseName, Locale.getDefault()); iterator.hasNext();)
{
BundleName name = iterator.next();
//
ResourceBundle bundle = lookup(name.toString());
if (bundle != null)
{
return bundle;
}
}
// Nothing was found
return null;
}
protected ResourceBundle lookup(String s)
{
// Try to load class first
// we don't do that for now !!!
// Try to load bundle then
String propertyName = s.replace('.', '/') + ".properties";
InputStream in = resourceLoader.getResourceAsStream(propertyName);
if (in != null)
{
try
{
in = IOTools.safeBufferedWrapper(in);
return new PropertyResourceBundle(in);
}
catch (IOException e)
{
}
finally
{
IOTools.safeClose(in);
}
}
//
return null;
}
}