/**
    * Oshi (https://github.com/dblock/oshi)
    * 
    * Copyright (c) 2010 - 2015 The Oshi Project Team
    * 
    * All rights reserved. This program and the accompanying materials
    * are made available under the terms of the Eclipse Public License v1.0
    * which accompanies this distribution, and is available at
    * http://www.eclipse.org/legal/epl-v10.html
   * 
   * Contributors:
   * dblock[at]dblock[dot]org
   * alessandro[at]perucchi[dot]org
   * widdis[at]gmail[dot]com
   * https://github.com/dblock/oshi/graphs/contributors
   */
  package oshi.software.os.linux.proc;
  
  import java.io.FileNotFoundException;
  import java.io.FileReader;
  import java.util.Scanner;
  
  import oshi.software.os.OperatingSystemVersion;
  
  /**
   * Contains operating system version information. The information includes major
   * and minor version numbers, a build number, a platform identifier, and
   * descriptive text about the operating system.
   *
   * @author alessandro[at]perucchi[dot]org
   */
  public class OSVersionInfoEx implements OperatingSystemVersion {
  
  	private String _version = null;
  	private String _codeName = null;
  	private String version = null;
  
  	public OSVersionInfoEx() {
  		try (Scanner in = new Scanner(new FileReader("/etc/os-release"))) {
  			in.useDelimiter("\n");
  			while (in.hasNext()) {
  				String[] splittedLine = in.next().split("=");
  				if (splittedLine[0].equals("VERSION_ID")) {
  					// remove beginning and ending '"' characters, etc from
  					// VERSION_ID="14.04"
  					setVersion(splittedLine[1].replaceAll("^\"|\"$", ""));
  				}
  				if (splittedLine[0].equals("VERSION")) {
  					// remove beginning and ending '"' characters
  					splittedLine[1] = splittedLine[1].replaceAll("^\"|\"$", "");
  
  					// Check basically if the code is between parenthesis or after
  					// the comma-space
  
  					// Basically, until now, that seems to be the standard to use
  					// parenthesis for the codename.
  					String[] split = splittedLine[1].split("[()]");
  					if (split.length <= 1)
  						// We are probably with Ubuntu, so need to get that part
  						// correctly.
  						split = splittedLine[1].split(", ");
  
  					if (split.length > 1) {
  						setCodeName(split[1]);
  					} else {
  						setCodeName(splittedLine[1]);
  					}
  				}
  			}
  		} catch (FileNotFoundException e) {
  			return;
  		}
  	}
  
  	/**
  	 * @return the _codeName
  	 */
  	public String getCodeName() {
  		return this._codeName;
  	}
  
  	/**
  	 * @return the _version
  	 */
  	public String getVersion() {
  		return this._version;
  	}
  
  	/**
  	 * @param _codeName
  	 *			the _codeName to set
  	 */
  	public void setCodeName(String _codeName) {
  		this._codeName = _codeName;
  	}
  
  	/**
  	 * @param _version
  	 *			the _version to set
 	 */
 	public void setVersion(String _version) {
 		this._version = _version;
 	}
 
 	@Override
 	public String toString() {
 		if (this.version == null) {
 			this.version = getVersion() + " (" + getCodeName() + ")";
 		}
 		return this.version;
 	}
 
 }