content: /**
   * ﻿Copyright (C) 2010 - 2019 52°North Initiative for Geospatial Open Source
   * Software GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *       • Apache License, version 2.0
   *       • Apache Software License, version 1.0
   *       • GNU Lesser General Public License, version 3
   *       • Mozilla Public License, versions 1.0, 1.1 and 2.0
   *       • Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * This program 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 General
   * Public License for more details.
   */
  package org.n52.wps.server.r.util;
  
  import java.io.IOException;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Starting RServe via command line on different OS.
   * 
   * For documentation see http://www.rforge.net/Rserve/doc.html
   * 
   * For information about RServe on Windows see http://rforge.net/Rserve/rserve-win.html
   * 
   * @author Daniel
   * 
   */
  public class RStarter {
  
      private static Logger log = LoggerFactory.getLogger(RStarter.class);
  
      private static void startRServeOnLinux() throws InterruptedException, IOException {
          String rserveStartCMD = "R CMD Rserve --vanilla --slave";
          Runtime.getRuntime().exec(rserveStartCMD).waitFor();
      }
  
      private static void startRServeOnWindows() throws IOException {
          String rserveStartCMD = "cmd /c start R -e library(Rserve);Rserve() --vanilla --slave";
          Runtime.getRuntime().exec(rserveStartCMD);
      }
  
      public void startR() throws InterruptedException, IOException {
          log.debug("Starting R locally...");
  
          if (System.getProperty("os.name").toLowerCase().indexOf("linux") > -1) {
              startRServeOnLinux();
          }
          else if (System.getProperty("os.name").toLowerCase().indexOf("windows") > -1) {
              startRServeOnWindows();
          }
  
          log.info("Started R.");
      }
  
  }
  