/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

package installer;
import java.io.*;
public class ExecCmd
{

    public boolean exec( String cmd, String[] env )
    {
       System.out.println("About to exectute " + cmd);
       final Process p;
       boolean result = false;
       try
       {
           Runtime rt = Runtime.getRuntime();
           p=rt.exec( cmd, env );
           new Thread(new Runnable() {
               public void run()
               {
                   BufferedReader br_in = null;
                   try
                   {
                       br_in = new BufferedReader(new InputStreamReader(p.getInputStream()));
                       String buff = null;
                       while ((buff = br_in.readLine()) != null)
                       {
                           System.out.println("Process out :" + buff);
                           /*try
                           {
                               Thread.sleep(100);
                           }
                           catch(Exception e) {}*/
                       }
                       System.out.println("finished reading out");
                    }
                    catch (IOException ioe)
                    {
                        System.out.println("Exception caught printing javac result");
                        ioe.printStackTrace();
                    }
                    finally
                    {
                       if ( br_in != null )
                       {
                           try
                           {
                               br_in.close();
                           }
                           catch( Exception e ) {} // nothing can be done
                       }
                    }
               } } ).start();

            new Thread(new Runnable() {
                public void run() {
                BufferedReader br_err = null;
                try {
                    br_err = new BufferedReader(new InputStreamReader(p.getErrorStream()));
                    String buff = null;
                    while ((buff = br_err.readLine()) != null) {
                    System.out.println("Process err :" + buff);
                    /*try {Thread.sleep(100); } catch(Exception e) {}*/
                 }
                 System.out.println("finished reading err");
                 } catch (IOException ioe) {
                    System.out.println("Exception caught printing javac result");
                    ioe.printStackTrace();
                 }
                 finally
                 {
                    if ( br_err != null )
                    {
                        try
                        {
                            br_err.close();
                        }
                        catch( Exception e ) {} // nothing can be done
                    }
                 }
            } }).start();
            int exitcode = p.waitFor();
            if ( exitcode != 0 )
            {
                System.out.println("cmd [" + cmd + "] failed" );
                result= false;
            }
            else
            {
                System.out.println("cmd [" + cmd + "] completed successfully");
                result= true;
            }
        }
        catch (Exception e) {
          System.out.println("Exception");
          e.printStackTrace();
       }
       System.out.println("command complete");
       return result;
    }
}