com.terradue.jcatalogue.client.internal.converters.LocaleConverter.java Source code

Introduction

Here is the source code for com.terradue.jcatalogue.client.internal.converters.LocaleConverter.java

Source

package com.terradue.jcatalogue.client.internal.converters;

/*
 *    Copyright 2011-2012 Terradue srl
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

import static java.lang.String.format;

import java.util.Locale;
import java.util.StringTokenizer;

import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.beanutils.Converter;

public final class LocaleConverter implements Converter {

    private static final String SEPARATOR = "-";

    public Object convert(@SuppressWarnings("rawtypes") Class type, Object value) {
        if (value == null) {
            throw new ConversionException("Null values not supported in this version.");
        }

        if (String.class == type) {
            if (value instanceof Locale) {
                Locale locale = (Locale) value;
                return locale.getLanguage() + SEPARATOR + locale.getCountry();
            }
        } else if (Locale.class == type) {
            if (value instanceof String) {
                StringTokenizer tokenizer = new StringTokenizer((String) value, SEPARATOR);
                return new Locale(tokenizer.nextToken(), tokenizer.nextToken());
            }
        }
        throw new ConversionException(format("type %s and value %s not supported", type, value));
    }

}