scripting/workben/installer/ExecCmd.java

   1 package installer;
   2 import java.util.*;
   3 import java.io.*;
   4 public class ExecCmd
   5 {
   6
   7     public boolean exec( String cmd, String[] env )
   8     {
   9        System.out.println("About to exectute " + cmd);
  10        final Process p;
  11        boolean result = false;
  12        try
  13        {
  14            Runtime rt = Runtime.getRuntime();
  15            p=rt.exec( cmd, env );
  16            new Thread(new Runnable() {
  17                public void run()
  18                {
  19                    BufferedReader br_in = null;
  20                    try
  21                    {
  22                        br_in = new BufferedReader(new InputStreamReader(p.getInputStream()));
  23                        String buff = null;
  24                        while ((buff = br_in.readLine()) != null)
  25                        {
  26                            System.out.println("Process out :" + buff);
  27                            /*try
  28                            {
  29                                Thread.sleep(100);
  30                            }
  31                            catch(Exception e) {}*/
  32                        }
  33                        System.out.println("finished reading out");
  34                     }
  35                     catch (IOException ioe)
  36                     {
  37                         System.out.println("Exception caught printing javac result");
  38                         ioe.printStackTrace();
  39                     }
  40                     finally
  41                     {
  42                        if ( br_in != null )
  43                        {
  44                            try
  45                            {
  46                                br_in.close();
  47                            }
  48                            catch( Exception e ) {} // nothing can be done
  49                        }
  50                     }
  51                } } ).start();
  52
  53             new Thread(new Runnable() {
  54                 public void run() {
  55                 BufferedReader br_err = null;
  56                 try {
  57                     br_err = new BufferedReader(new InputStreamReader(p.getErrorStream()));
  58                     String buff = null;
  59                     while ((buff = br_err.readLine()) != null) {
  60                     System.out.println("Process err :" + buff);
  61                     /*try {Thread.sleep(100); } catch(Exception e) {}*/
  62                  }
  63                  System.out.println("finished reading err");
  64                  } catch (IOException ioe) {
  65                     System.out.println("Exception caught printing javac result");
  66                     ioe.printStackTrace();
  67                  }
  68                  finally
  69                  {
  70                     if ( br_err != null )
  71                     {
  72                         try
  73                         {
  74                             br_err.close();
  75                         }
  76                         catch( Exception e ) {} // nothing can be done
  77                     }
  78                  }
  79             } }).start();
  80             int exitcode = p.waitFor();
  81             if ( exitcode != 0 )
  82             {
  83                 System.out.println("cmd [" + cmd + "] failed" );
  84                 result= false;
  85             }
  86             else
  87             {
  88                 System.out.println("cmd [" + cmd + "] completed successfully");
  89                 result= true;
  90             }
  91         }
  92         catch (Exception e) {
  93           System.out.println("Exception");
  94           e.printStackTrace();
  95        }
  96        System.out.println("command complete");
  97        return result;
  98     }
  99 }
 100