/*
 * Copyright (c) 2010, 2017 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.grizzly.localization;

import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

Localizes the Localizable into a message by using a configured Locale.
Author:WS Development Team
/** * Localizes the {@link Localizable} into a message * by using a configured {@link Locale}. * * @author WS Development Team */
public class Localizer { private final Locale _locale; private final Map<String, ResourceBundle> _resourceBundles; public Localizer() { this(Locale.getDefault()); } public Localizer(Locale l) { _locale = l; _resourceBundles = new HashMap<String, ResourceBundle>(); } public Locale getLocale() { return _locale; } public String localize(Localizable l) { String key = l.getKey(); if (key == Localizable.NOT_LOCALIZABLE) { // this message is not localizable return (String) l.getArguments()[0]; } String bundlename = l.getResourceBundleName(); try { ResourceBundle bundle = _resourceBundles.get(bundlename); if (bundle == null) { try { bundle = ResourceBundle.getBundle(bundlename, _locale); } catch (MissingResourceException e) { // work around a bug in the com.sun.enterprise.deployment.WebBundleArchivist: // all files with an extension different from .class (hence all the .properties files) // get copied to the top level directory instead of being in the package where they // are defined // so, since we can't find the bundle under its proper name, we look for it under // the top-level package int i = bundlename.lastIndexOf('.'); if (i != -1) { String alternateBundleName = bundlename.substring(i + 1); try { bundle = ResourceBundle.getBundle( alternateBundleName, _locale); } catch (MissingResourceException e2) { // give up return getDefaultMessage(l); } } } _resourceBundles.put(bundlename, bundle); } if (bundle == null) { return getDefaultMessage(l); } if (key == null) key = "undefined"; String msg; try { msg = bundle.getString(key); } catch (MissingResourceException e) { // notice that this may throw a MissingResourceException of its own (caught below) msg = bundle.getString("undefined"); } // localize all arguments to the given localizable object Object[] args = l.getArguments(); for (int i = 0; i < args.length; ++i) { if (args[i] instanceof Localizable) args[i] = localize((Localizable) args[i]); } return MessageFormat.format(msg, args); } catch (MissingResourceException e) { return getDefaultMessage(l); } } private String getDefaultMessage(Localizable l) { String key = l.getKey(); Object[] args = l.getArguments(); StringBuilder sb = new StringBuilder(); sb.append("[failed to localize] "); sb.append(key); if (args != null) { sb.append('('); for (int i = 0; i < args.length; ++i) { if (i != 0) sb.append(", "); sb.append(String.valueOf(args[i])); } sb.append(')'); } return sb.toString(); } }