org.apache.wicket.resource.loader.ClassStringResourceLoader Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of org.ops4j.pax.wicket.service Show documentation

Pax Wicket Service is an OSGi extension of the Wicket framework, allowing for dynamic loading and unloading of Wicket components and pageSources.

There is a newer version: 5.0.0

Show newest version

/*
 * 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.apache.wicket.resource.loader;

import java.lang.ref.WeakReference;
import java.util.Locale;

import org.apache.wicket.Component;
import org.apache.wicket.Session;


/**
 * This string resource loader attempts to find a single resource bundle that has the same name and
 * location as the clazz provided in the constructor. If the bundle is found than strings are
 * obtained from here. This implementation is fully aware of both locale and style values when
 * trying to obtain the appropriate bundle.
 * 
 * An instance of this loader is registered with the Application by default.
 * 
 * @author Chris Turner
 * @author Juergen Donnerstag
 */
public class ClassStringResourceLoader extends ComponentStringResourceLoader
{
	/** The application we are loading for. */
	private final WeakReference> clazzRef;

	/**
	 * Create and initialize the resource loader.
	 * 
	 * @param clazz
	 *            The class that this resource loader is associated with
	 */
	public ClassStringResourceLoader(final Class clazz)
	{
		if (clazz == null)
		{
			throw new IllegalArgumentException("Parameter 'clazz' must not be null");
		}
		clazzRef = new WeakReference>(clazz);
	}

	/**
	 * @see org.apache.wicket.resource.loader.ComponentStringResourceLoader#loadStringResource(java.lang.Class,
	 *      java.lang.String, java.util.Locale, java.lang.String)
	 */
	@Override
	public String loadStringResource(final Class clazz, final String key, final Locale locale,
		final String style)
	{
		return super.loadStringResource(clazzRef.get(), key, locale, style);
	}

	/**
	 * @see org.apache.wicket.resource.loader.ComponentStringResourceLoader#loadStringResource(org.apache.wicket.Component,
	 *      java.lang.String)
	 */
	@Override
	public String loadStringResource(Component component, String key)
	{
		if (component == null)
		{
			return loadStringResource(null, key, Session.get().getLocale(), Session.get()
				.getStyle());
		}
		return super.loadStringResource(component, key);
	}
}