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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 java.io.Serializable;

import org.wicketstuff.jslibraries.util.Assert;

public class VersionDescriptor implements Serializable
{
	private static final long serialVersionUID = 1L;

	private final Library mLibrary;
	private final boolean mExact;
	private final Version mVersion;

	private VersionDescriptor(Library library, boolean exact, Version version)
	{

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

		mLibrary = library;
		mVersion = version;
		mExact = exact;
	}

	public Library getLibrary()
	{
		return mLibrary;
	}

	public Version getVersion(final Provider provider)
	{
		Assert.parameterNotNull(provider, "provider");

		Version mMatch = null;

		for (Version version : mLibrary.getVersions(provider))
		{
			if (mExact)
			{
				if (version.equals(mVersion))
				{
					mMatch = version;
					break;
				}
			}
			else
			{
				if (version.matches(mVersion))
				{
					mMatch = version;
					// continue to look for something better
				}
			}
		}

		return mMatch;
	}

	public static VersionDescriptor alwaysLatest(Library lib)
	{
		return alwaysLatestOfVersion(lib, new int[0]);
	}

	public static VersionDescriptor exactVersion(Library lib, int... numbers)
	{

		Assert.parameterNotNull(lib, "lib");

		return new VersionDescriptor(lib, true, new Version(numbers));
	}

	public static VersionDescriptor alwaysLatestOfVersion(Library lib, int... numbers)
	{

		Assert.parameterNotNull(lib, "lib");

		return new VersionDescriptor(lib, false, new Version(numbers));
	}

	@Override
	public int hashCode()
	{
		final int prime = 31;
		int result = 1;
		result = prime * result + (mLibrary == null ? 0 : mLibrary.hashCode());
		return result;
	}

	@Override
	public boolean equals(final Object obj)
	{
		if (this == obj)
		{
			return true;
		}
		if (obj == null)
		{
			return false;
		}
		if (getClass() != obj.getClass())
		{
			return false;
		}
		VersionDescriptor other = (VersionDescriptor)obj;
		if (mLibrary == null)
		{
			if (other.mLibrary != null)
			{
				return false;
			}
		}
		else if (!mLibrary.equals(other.mLibrary))
		{
			return false;
		}
		return true;
	}
}