/*

 * Copyright (c) 2012, 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

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 */

/*

 * (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.locale.provider;

import java.text.MessageFormat;

import java.util.Calendar;

import java.util.Locale;

import java.util.ResourceBundle;

import java.util.concurrent.ConcurrentHashMap;

import java.util.concurrent.ConcurrentMap;

/**

 * Central accessor to locale-dependent resources.

 *

 * @author Masayoshi Okutsu

 */

public class LocaleResources {

    private final LocaleProviderAdapter adapter;

    private final Locale locale;

    // Resource cache

    private ConcurrentMap<String, Object> cache = new ConcurrentHashMap<>();

    LocaleResources(LocaleProviderAdapter adapter, Locale locale) {

        this.adapter = adapter;

        this.locale = locale;

    }

        if (tznames == null) {

            tznames = adapter.getLocaleData().getTimeZoneNames(locale);

            }

        }

        return tznames;

    }

    public String getDateTimePattern(int timeStyle, int dateStyle, Calendar cal) {

        String pattern;

        if (cal == null) {

            cal = Calendar.getInstance(locale);

        }

        String calType = cal.getCalendarType();

        String timePattern = null;

        String datePattern = null;

        if (timeStyle >= 0) {

            timePattern = getDateTimePattern("TimePatterns", timeStyle, calType);

        }

        if (dateStyle >= 0) {

            datePattern = getDateTimePattern("DatePatterns", dateStyle, calType);

        }

        if (timeStyle >= 0) {

            if (dateStyle >= 0) {

                String dateTimePattern = getDateTimePattern("DateTimePatterns", 0, calType);

                switch (dateTimePattern) {

                case "{1} {0}":

                    pattern = datePattern + " " + timePattern;

                    break;

                case "{0} {1}":

                    pattern = timePattern + " " + datePattern;

                    break;

                default:

                    pattern = MessageFormat.format(dateTimePattern, timePattern, datePattern);

                    break;

                }

            } else {

                pattern = timePattern;

            }

        } else if (dateStyle >= 0) {

            pattern = datePattern;

        } else {

            throw new IllegalArgumentException("No date or time style specified");

        }

        return pattern;

    }

    public String[] getNumberPatterns() {

        /* try the cache first */

        String[] numberPatterns = (String[]) cache.get("NumberPatterns");

        if (numberPatterns == null) { /* cache miss */

            ResourceBundle resource = adapter.getLocaleData().getNumberFormatData(locale);

            numberPatterns = resource.getStringArray("NumberPatterns");

            /* update cache */

            cache.put("NumberPatterns", numberPatterns);

        }

        return numberPatterns;

    }

    private String getDateTimePattern(String key, int styleIndex, String calendarType) {

        String resourceKey = "gregory".equals(calendarType) ? key : calendarType + "." + key;

        /* try the cache first */

        String[] patterns = (String[]) cache.get(resourceKey);

        if (patterns == null) { /* cache miss */

            ResourceBundle r = adapter.getLocaleData().getDateFormatData(locale);

            if (r.containsKey(resourceKey)) {

                patterns = r.getStringArray(resourceKey);

            } else {

                assert !resourceKey.equals(key);

                patterns = r.getStringArray(key);

            }

            /* update cache */

            cache.putIfAbsent(resourceKey, patterns);

        }

        return patterns[styleIndex];

    }

}