/*
 * Copyright 2004-2009 the Seasar Foundation and the Others.
 *
 * 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.
 */
package org.seasar.struts.util;

import java.util.Locale;

import org.apache.struts.util.MessageResources;
import org.apache.struts.util.MessageResourcesFactory;
import org.seasar.framework.message.MessageResourceBundle;
import org.seasar.framework.message.MessageResourceBundleFactory;
import org.seasar.framework.util.Disposable;
import org.seasar.framework.util.DisposableUtil;

/**
 * Seasar2用のプロパティメッセージリソースです。
 * 
 * @author higa
 * 
 */
public class S2PropertyMessageResources extends MessageResources implements
        Disposable {

    private static final long serialVersionUID = 1L;

    /**
     * 初期化されたかどうかです。
     */
    protected volatile boolean initialized = false;

    /**
     * インスタンスを構築します。
     * 
     * @param factory
     *            メッセージリソースファクトリ
     * @param config
     *            設定
     */
    public S2PropertyMessageResources(MessageResourcesFactory factory,
            String config) {
        super(factory, config);
        initialize();
    }

    @Override
    public String getMessage(Locale locale, String key) {
        if (!initialized) {
            initialize();
        }
        if (locale == null) {
            locale = defaultLocale;
        }
        MessageResourceBundle bundle = MessageResourceBundleFactory.getBundle(
                config, locale);
        return bundle.get(key);
    }

    /**
     * 初期化します。
     */
    public void initialize() {
        DisposableUtil.add(this);
        initialized = true;
    }

    public void dispose() {
        formats.clear();
        initialized = false;

    }
}