/*
 * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
 * (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
 *
 * The original version of this source code and documentation
 * is copyrighted and owned by Taligent, Inc., a wholly-owned
 * subsidiary of IBM. These materials are provided under terms
 * of a License Agreement between Taligent and Sun. This technology
 * is protected by multiple US and International patents.
 *
 * This notice and attribution to Taligent may not be removed.
 * Taligent is a registered trademark of Taligent, Inc.
 *
 */

package sun.util.resources;

import java.util.Map;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.MissingResourceException;
import java.util.Objects;
import java.util.Set;

Subclass of ResourceBundle with special
functionality for time zone names. The additional functionality:

Preserves the order of entries in the getContents
    array for the enumeration returned by getKeys.
Inserts the time zone ID (the key of the bundle entries) into
    the string arrays returned by handleGetObject.

All TimeZoneNames resource bundles must extend this
class and implement the getContents method.
/**
 * Subclass of <code>ResourceBundle</code> with special
 * functionality for time zone names. The additional functionality:
 * <ul>
 * <li>Preserves the order of entries in the <code>getContents</code>
 *     array for the enumeration returned by <code>getKeys</code>.
 * <li>Inserts the time zone ID (the key of the bundle entries) into
 *     the string arrays returned by <code>handleGetObject</code>.
 * </ul>
 * All <code>TimeZoneNames</code> resource bundles must extend this
 * class and implement the <code>getContents</code> method.
 */
public abstract class TimeZoneNamesBundle extends OpenListResourceBundle {

    
Maps time zone IDs to locale-specific names.
The value returned is an array of five strings:

The time zone ID (same as the key, not localized).
The long name of the time zone in standard time (localized).
The short name of the time zone in standard time (localized).
The long name of the time zone in daylight savings time (localized).
The short name of the time zone in daylight savings time (localized).
The long name of the time zone in generic form (localized).
The short name of the time zone in generic form (localized).

The localized names come from the subclasses's
getContents implementations, while the time zone
ID is inserted into the returned array by this method.
/**
     * Maps time zone IDs to locale-specific names.
     * The value returned is an array of five strings:
     * <ul>
     * <li>The time zone ID (same as the key, not localized).
     * <li>The long name of the time zone in standard time (localized).
     * <li>The short name of the time zone in standard time (localized).
     * <li>The long name of the time zone in daylight savings time (localized).
     * <li>The short name of the time zone in daylight savings time (localized).
     * <li>The long name of the time zone in generic form (localized).
     * <li>The short name of the time zone in generic form (localized).
     * </ul>
     * The localized names come from the subclasses's
     * <code>getContents</code> implementations, while the time zone
     * ID is inserted into the returned array by this method.
     */
    @Override
    public Object handleGetObject(String key) {
        Object val = super.handleGetObject(key);
        if (val instanceof String[]) {
            String[] contents = (String[]) val;
            int clen = contents.length;
            String[] tmpobj = new String[7];
            tmpobj[0] = key;
            System.arraycopy(contents, 0, tmpobj, 1, clen);
            return tmpobj;
        }
        return val;
    }

    
Use LinkedHashMap to preserve the order of bundle entries.
/**
     * Use LinkedHashMap to preserve the order of bundle entries.
     */
    @Override
    protected <K, V> Map<K, V> createMap(int size) {
        return new LinkedHashMap<>(size);
    }

    
Use LinkedHashSet to preserve the key order.
Type parameters:
<E> – the type of elements
Returns:
a Set/**
     * Use LinkedHashSet to preserve the key order.
     * @param <E> the type of elements
     * @return a Set
     */
    @Override
    protected <E> Set<E> createSet() {
        return new LinkedHashSet<>();
    }

    
Provides key/value mappings for a specific
resource bundle. Each entry of the array
returned must be an array with two elements:

The key, which must be a string.
The value, which must be an array of
    four strings:
    

    
The long name of the time zone in standard time.
    
The short name of the time zone in standard time.
    
The long name of the time zone in daylight savings time.
    
The short name of the time zone in daylight savings time.
    

/**
     * Provides key/value mappings for a specific
     * resource bundle. Each entry of the array
     * returned must be an array with two elements:
     * <ul>
     * <li>The key, which must be a string.
     * <li>The value, which must be an array of
     *     four strings:
     *     <ul>
     *     <li>The long name of the time zone in standard time.
     *     <li>The short name of the time zone in standard time.
     *     <li>The long name of the time zone in daylight savings time.
     *     <li>The short name of the time zone in daylight savings time.
     *     </ul>
     * </ul>
     */
    protected abstract Object[][] getContents();
}