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

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Here is the source code for de.micromata.genome.util.i18n.PlaceholderTranslationProvider.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.Objects;

import de.micromata.genome.util.text.PlaceHolderReplacer;
import de.micromata.genome.util.text.StringResolver;
import org.apache.commons.lang3.StringUtils;

/**
 * Evaluate I{} sub expression and translates them.
 * 
 * @author Roger Rene Kommer (r.kommer.extern@micromata.de)
 *
 */
public class PlaceholderTranslationProvider extends TranslationProviderWrapper {
    public PlaceholderTranslationProvider(I18NTranslationProvider nested) {
        super(nested);

    }

    @Override
    public Object getTranslationForKey(String key) {
        Object value = super.getTranslationForKey(key);
        if ((value instanceof String) == false) {
            return value;
        }
        String svalue = (String) value;
        String resolved = PlaceHolderReplacer.resolveReplace(svalue, "I{", "}", new StringResolver() {

            @Override
            public String resolve(String placeholder) {
                return Objects.toString(getTranslationForKey(placeholder), StringUtils.EMPTY);
            }
        });
        return resolved;
    }
}