it.cnr.icar.eric.client.admin.AdminResourceBundle.java Source code

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Here is the source code for it.cnr.icar.eric.client.admin.AdminResourceBundle.java

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/*
 * ====================================================================
 * This file is part of the ebXML Registry by Icar Cnr v3.2 
 * ("eRICv32" in the following disclaimer).
 *
 * "eRICv32" 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * "eRICv32" 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 Version 3
 * along with "eRICv32".  If not, see <http://www.gnu.org/licenses/>.
 *
 * eRICv32 is a forked, derivative work, based on:
 *    - freebXML Registry, a royalty-free, open source implementation of the ebXML Registry standard,
 *      which was published under the "freebxml License, Version 1.1";
 *   - ebXML OMAR v3.2 Edition, published under the GNU GPL v3 by S. Krushe & P. Arwanitis.
 * 
 * All derivative software changes and additions are made under
 *
 * Copyright (C) 2013 Ing. Antonio Messina <messina@pa.icar.cnr.it>
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the freebxml Software Foundation.  For more
 * information on the freebxml Software Foundation, please see
 * "http://www.freebxml.org/".
 *
 * This product includes software developed by the Apache Software
 * Foundation (http://www.apache.org/).
 *
 * ====================================================================
 */
package it.cnr.icar.eric.client.admin;

import it.cnr.icar.eric.common.AbstractResourceBundle;

import java.util.Locale;
import java.util.ResourceBundle;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * This class is used to load localized strings
 *
 * @author  Doug Bunting / Sun Microsystems
 *
 * Copied from common/CommonResourceBundle.java
 */
public class AdminResourceBundle extends AbstractResourceBundle {

    private static final String BASE_NAME = AdminShell.ADMIN_SHELL_RESOURCE_BASE + ".ResourceBundle";

    // ??? TODO: Add logging as necessary...
    @SuppressWarnings("unused")
    private static final Log log = LogFactory.getLog(AdminResourceBundle.class);
    private static AdminResourceBundle instance = null;
    private static Locale locale = null;

    private ResourceBundle bundle = null;

    protected AdminResourceBundle() {
        // Load the resource bundle of default locale
        bundle = ResourceBundle.getBundle(BASE_NAME);
    }

    protected AdminResourceBundle(Locale locale) {
        // Load the resource bundle of specified locale
        bundle = ResourceBundle.getBundle(BASE_NAME, locale);
    }

    public static AdminResourceBundle getInstance() {
        Locale locale = Locale.getDefault();

        // Covers case when default locale has changed since we were last
        // called.
        return getInstance(locale);
    }

    public synchronized static AdminResourceBundle getInstance(Locale locale) {
        if (instance == null) {
            instance = new AdminResourceBundle(locale);
            AdminResourceBundle.locale = locale;
        } else {
            if (AdminResourceBundle.locale != locale) {
                instance = new AdminResourceBundle(locale);
                AdminResourceBundle.locale = locale;
            }
        }

        return instance;
    }

    public ResourceBundle getBundle() {
        return bundle;
    }

    // Since this code is used only in the context of a CLI with a single
    // locale, calls to this variant of getBundle() are likely errors.  We
    // maintain the singleton invariant just in case...
    public ResourceBundle getBundle(Locale locale) {
        return getInstance(locale).getBundle();
    }
}