PlatformUtils.java

/*
 * This file is part of DeskBin.
 *
 * Copyright (c) 2012, alta189 <http://github.com/alta189/DeskBin/>
 * DeskBin is licensed under the GNU Lesser General Public License.
 *
 * DeskBin is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DeskBin is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.alta189.deskbin.util;

import java.io.File;

public class PlatformUtils {
	private static final File workingDirectory = getWorkingDirectory("deskbin");

	public static File getWorkingDirectory() {
		return workingDirectory;
	}

	public static File getWorkingDirectory(String applicationName) {
		String userHome = System.getProperty("user.home", ".");
		File workingDirectory;

		switch (getOperatingSystem()) {
			case LINUX:
			case SOLARIS:
				workingDirectory = new File(userHome, '.' + applicationName + '/');
				break;
			case WINDOWS:
				String applicationData = System.getenv("APPDATA");
				if (applicationData != null) {
					workingDirectory = new File(applicationData, applicationName + '/');
				} else {
					workingDirectory = new File(userHome, '.' + applicationName + '/');
				}
				break;
			case MAC_OS:
				workingDirectory = new File(userHome, "Library/Application Support/" + applicationName);
				break;
			default:
				workingDirectory = new File(userHome, applicationName + '/');
		}
		if ((!workingDirectory.exists()) && (!workingDirectory.mkdirs()))
			throw new RuntimeException("The working directory could not be created: " + workingDirectory);
		return workingDirectory;
	}

	public static OS getOperatingSystem() {
		String osName = System.getProperty("os.name").toLowerCase();
		if (osName.contains("win"))
			return OS.WINDOWS;
		if (osName.contains("mac"))
			return OS.MAC_OS;
		if (osName.contains("solaris"))
			return OS.SOLARIS;
		if (osName.contains("sunos"))
			return OS.SOLARIS;
		if (osName.contains("linux"))
			return OS.LINUX;
		if (osName.contains("unix"))
			return OS.LINUX;
		return OS.UNKNOWN;
	}

	public enum OS {
		LINUX,
		SOLARIS,
		WINDOWS,
		MAC_OS,
		UNKNOWN;
	}
	
}