OS.java

/*
 * This file is part of FTB Launcher.
 *
 * Copyright © 2012-2016, FTB Launcher Contributors <https://github.com/Slowpoke101/FTBLaunch/>
 * FTB Launcher is licensed 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 net.feed_the_beast.launcher.json.versions;

import java.util.Locale;

public enum OS
{
	LINUX("linux", "linux", "unix"),
	WINDOWS("windows", "win"),
	OSX("osx", "mac"),
	UNKNOWN("unknown");

	private String name;
	private String[] aliases;

	public static final OS CURRENT = getCurrentPlatform();
	public static final String VERSION = System.getProperty("os.version");

	private OS (String name, String... aliases)
	{
		this.name = name;
		this.aliases = aliases;
	}

	public static OS getCurrentPlatform ()
	{
		String osName = System.getProperty("os.name").toLowerCase(Locale.US);
		for(OS os : values())
		{
			if (osName.contains(os.name))
			{
				return os;
			}
			for(String alias : os.aliases)
			{
				if (osName.contains(alias))
				{
					return os;
				}
			}
		}
		return UNKNOWN;
	}
}