org.wicketstuff.jslibraries.Version Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wicketstuff-jslibraries Show documentation

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.

There is a newer version: 6.30.0

Show newest version

/**
 * 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 java.util.Arrays;

import org.wicketstuff.jslibraries.util.Assert;

public class Version implements Comparable, Serializable
{
	private static final long serialVersionUID = 1L;

	private final int[] mNumbers;

	public Version(int... numbers)
	{
		mNumbers = numbers;
	}

	public int[] getNumbers()
	{
		return mNumbers;
	}

	public int compareTo(Version other)
	{
		Assert.parameterNotNull(other, "other");

		for (int i = 0; i < mNumbers.length; i++)
		{
			if (mNumbers[i] != other.mNumbers[i])
			{
				return mNumbers[i] - other.mNumbers[i];
			}
			int next = i + 1;
			if (next < mNumbers.length && next >= other.mNumbers.length)
			{
				// i have another level and the other doesn't, so I come after
				return +1;
			}
		}
		return 0;
	}

	/**
	 * A version matches another if it has equal or more numbers and all its numbers equal those of
	 * the other.
	 * 
	 * @param other
	 */
	public boolean matches(Version other)
	{
		Assert.parameterNotNull(other, "other");

		if (other.mNumbers.length > mNumbers.length)
		{
			return false;
		}

		for (int i = 0; i < other.mNumbers.length; i++)
		{
			if (mNumbers[i] != other.mNumbers[i])
			{
				return false;
			}
		}
		return true;
	}

	@Override
	public String toString()
	{
		return 'v' + renderVersionNumbers();
	}

	@Override
	public int hashCode()
	{
		final int prime = 31;
		int result = 1;
		result = prime * result + Arrays.hashCode(mNumbers);
		return result;
	}

	@Override
	public boolean equals(Object obj)
	{
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Version other = (Version)obj;
		if (!Arrays.equals(mNumbers, other.mNumbers))
			return false;
		return true;
	}

	protected String renderVersionNumbers()
	{
		StringBuffer sb = new StringBuffer();
		for (int num : mNumbers)
		{
			if (sb.length() > 0)
			{
				sb.append('.');
			}
			sb.append(num);
		}
		return sb.toString();
	}
}