/*

 * Copyright (c) 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.

 *

 * 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.

 */

package foo;

import java.text.DateFormatSymbols;

import java.text.spi.DateFormatSymbolsProvider;

import java.util.Locale;

/*

 * Implements DateFormatSymbolsProvider SPI, in order to check if the

 * extensions work correctly.

 */

public class DateFormatSymbolsProviderImpl extends DateFormatSymbolsProvider {

    private static final Locale AA = Locale.forLanguageTag("en-AA");

    private static final Locale USJCAL = Locale.forLanguageTag("en-US-u-ca-japanese");

    private static final Locale[] avail = {AA, Locale.US};

    @Override

    public Locale[] getAvailableLocales() {

        return avail;

    }

    @Override

    public boolean isSupportedLocale(Locale l) {

        // Overriding to check the relation between

        // isSupportedLocale/getAvailableLocales works correctly

        if (l.equals(AA)) {

            // delegates to super, as if isSupportedLocale didn't exist.

            return super.isSupportedLocale(l);

        } else {

            return (l.equals(USJCAL));

        }

    }

    @Override

    public DateFormatSymbols getInstance(Locale l) {

        return new MyDateFormatSymbols(l);

    }

    class MyDateFormatSymbols extends DateFormatSymbols {

        Locale locale;

        public MyDateFormatSymbols(Locale l) {

            super(l);

            locale = l;

        }

        @Override

        public String[] getMonths() {

            String[] ret = super.getMonths();

            // replace the first item with some unique value

            if (locale.stripExtensions().equals(AA)) {

                ret[0] = "foo";

            } else if (locale.equals(USJCAL)) {

                ret[0] = "bar";

            } else {

                throw new RuntimeException("Unsupported locale: " + locale);

            }

            return ret;

        }

    }

}