org.wicketstuff.rest.utils.wicket.DefaultBundleResolver.java Source code

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Here is the source code for org.wicketstuff.rest.utils.wicket.DefaultBundleResolver.java

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/**
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.wicketstuff.rest.utils.wicket;

import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.wicket.Application;
import org.apache.wicket.Session;
import org.apache.wicket.resource.loader.IStringResourceLoader;
import org.apache.wicket.validation.IErrorMessageSource;
import org.wicketstuff.rest.resource.AbstractRestResource;

/**
 * Wicket bundle resolver that relies on the default {@link IStringResourceLoader}S.
 * Its constructor requires an subclass of {@link AbstractRestResource} which 
 * is used to resolve custom bundles.
 * 
 * @author andrea del bene
 *
 */
public class DefaultBundleResolver implements IErrorMessageSource {
    private final Class<? extends AbstractRestResource> clazz;

    public DefaultBundleResolver(Class<? extends AbstractRestResource> clazz) {
        this.clazz = clazz;
    }

    @Override
    public String getMessage(String key, Map<String, Object> vars) {
        String resourceValue = null;
        List<IStringResourceLoader> resourceLoaders = Application.get().getResourceSettings()
                .getStringResourceLoaders();
        Locale locale = Session.get().getLocale();
        String style = Session.get().getStyle();

        for (IStringResourceLoader stringResourceLoader : resourceLoaders) {
            resourceValue = stringResourceLoader.loadStringResource(clazz, key, locale, style, null);

            if (resourceValue != null)
                break;
        }

        StringConverterInterpolator interpolator = new StringConverterInterpolator(
                resourceValue != null ? resourceValue : "", vars, false, locale);

        return interpolator.toString();
    }
}