org.mayocat.rest.jackson.LocaleBCP47LanguageTagDeserializer.java Source code

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Here is the source code for org.mayocat.rest.jackson.LocaleBCP47LanguageTagDeserializer.java

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/*
 * Copyright (c) 2012, Mayocat <hello@mayocat.org>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package org.mayocat.rest.jackson;

import java.io.IOException;
import java.util.Locale;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.google.common.base.Strings;

/**
 * @version $Id: b42683ec2e095885e044e2ef0b4b30169d4dd81a $
 */
public class LocaleBCP47LanguageTagDeserializer extends JsonDeserializer<Locale> {
    @Override
    public Locale deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
            throws IOException, JsonProcessingException {
        String str = jsonParser.getText().trim();
        if (Strings.isNullOrEmpty(str)) {
            return null;
        }

        return Locale.forLanguageTag(str);
    }
}