de.micromata.genome.util.i18n.ChainedResourceBundleTranslationResolver.java Source code

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Here is the source code for de.micromata.genome.util.i18n.ChainedResourceBundleTranslationResolver.java

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//
// Copyright (C) 2010-2016 Micromata GmbH
//
// 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 de.micromata.genome.util.i18n;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;

import org.apache.commons.lang3.StringUtils;

/**
 * Uses ResourceBundles loaded from class path.
 * 
 * @author Roger Rene Kommer (r.kommer.extern@micromata.de)
 *
 */
public class ChainedResourceBundleTranslationResolver implements I18NTranslationResolver {
    private String[] resIds;

    /**
     * 
     * @param resIds path to class path, from higher to lower priority
     */
    public ChainedResourceBundleTranslationResolver(String... resIds) {
        this.resIds = resIds;
    }

    @Override
    public I18NTranslationProvider getTranslationFor(Locale locale) {
        Map<String, Object> entries = new HashMap<>();
        for (String resId : resIds) {
            ResourceBundle resbundle = ResourceBundle.getBundle(resId, locale);
            for (String key : resbundle.keySet()) {
                entries.putIfAbsent(key, resbundle.getObject(key));
            }
        }
        return new MapTranslationProvider(StringUtils.join(resIds, "_"), entries);
    }

}