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This project is simply a unified way of including common JS libraries within Wicket so that you don't have to bundle them in your application, and they aren't deployed with dozens of jars that may use them, but they are deployed in only one.

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/**
 * Copyright (C) 2008 Jeremy Thomerson 
 *
 * 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.jslibraries;

import org.apache.wicket.request.resource.PackageResourceReference;
import org.apache.wicket.request.resource.ResourceReference;
import org.wicketstuff.jslibraries.util.Assert;
import org.wicketstuff.jslibraries.util.WicketDeploymentState;

public class JSReference
{
	private JSReference()
	{
	}

	public static ResourceReference getReference(VersionDescriptor versionDescriptor)
	{
		return getReference(versionDescriptor, WicketDeploymentState.isProduction());
	}

	public static ResourceReference getReference(VersionDescriptor versionDescriptor,
		boolean production)
	{

		Assert.parameterNotNull(versionDescriptor, "versionDescriptor");

		Version version = versionDescriptor.getVersion(LocalProvider.DEFAULT);
		if (version == null)
		{
			// no matching version found for local provider
			return null;
		}
		Library lib = versionDescriptor.getLibrary();
		StringBuffer sb = createFileName(lib, version, production);
		return new PackageResourceReference(JSReference.class, sb.toString());
	}

	public static StringBuffer createFileName(Library lib, Version version, boolean production)
	{

		Assert.parameterNotNull(lib, "lib");
		Assert.parameterNotNull(version, "version");

		StringBuffer sb = new StringBuffer();
		sb.append("js/").append(LocalProvider.DEFAULT.getLocalFileName(lib)).append('-');
		for (int i = 0; i < version.getNumbers().length; i++)
		{
			sb.append(version.getNumbers()[i]);
			if (i < (version.getNumbers().length - 1))
			{
				sb.append('.');
			}
		}
		if (production)
		{
			String productionSignifier = LocalProvider.DEFAULT.getProductionSignifier(lib);
			if (productionSignifier != null)
				sb.append(productionSignifier);
		}
		sb.append(".js");
		return sb;
	}

}