// $RCSfile: TSLaunch.java,v $
// $Revision: 1.4 $
// $Name:  $
// $Date: 2002/05/22 10:09:57 $
// $Author: giberta1 $

/*
 * TSLauch.java - Time Stamp args program laucher
 * Copyright (C) 2002 Arnaud G. Gibert
 * arnaud.gibert@misys.com
 * www.misys.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

import java.util.*;
import java.io.*;
import java.text.*;





public class TSLaunch
{
        private String  TS_Key = "TIME-STAMP";
        private String  Sub_Args[];
	private String	TSLaunch_Revision = "$Revision: 1.4 $";
	private String  TSLaunch_Tag      = "$Name:  $";
	private	String  TSLaunch_Date     = "$Date: 2002/05/22 10:09:57 $";
	private	String 	TSLaunch_Author   = "$Author: giberta1 $";





	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------

	public class Stream_Gobbler extends Thread
	{
		BufferedInputStream  BIS;
		PrintStream    	     PS;





		//-----------------------------------------------------------------------------------------------------------------
		//
		//-----------------------------------------------------------------------------------------------------------------
		
		public void run()
		{
			int  out;


	        	try
        	        {
        	        	while ( ( out = BIS.read() ) != -1)
        	        	{
        	        		PS.print( (char)out);
        	        	}
	                }

        	        catch( Exception Expt)
                	{                       
	                        System.out.println("Exception:  (" + Expt + ") !");
        	                Expt.printStackTrace();
                	}

		}





		//-----------------------------------------------------------------------------------------------------------------
		//
		//-----------------------------------------------------------------------------------------------------------------
		
		public Stream_Gobbler( InputStream  IS, PrintStream  PS)
		{
			this.BIS = new BufferedInputStream( IS);
			this.PS = PS;
			
			this.start();
		}
	}





	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------
	
        public static void main( String  args[])
        {
                new TSLaunch( args);
        }

        
        
        
        
	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------
	
	private void Arg_Parse( String  Args[]) throws Exception
        {
        	int  argc = 0;
        	
        	
        	try
                {
			while( argc < Args.length)
                        {
				if ( Args[argc].equals( "-k"))
                		{
                			if( argc < ( Args.length + 1))
                			{
                        			TS_Key = Args[++argc];
                        		}
                        		else
                        		{
                        			System.out.println( "Invalid number of command line options...");
                        			throw new Exception();
                        		}
                        		
       		         		argc++;
                       		}
                		else
                		{
                			if( argc < ( Args.length + 2))
                			{
                				Sub_Args = new String[Args.length - argc];
                				System.arraycopy( Args, argc, Sub_Args, 0, ( Args.length - argc));
                				
                				break;
                			}
                			else
                        		{
                        			System.out.println( "Invalid number of command line options...");
                        			throw new Exception();
                        		}
                		}
                        }
                }
                
                catch( Exception Expt)
                {                       
                        throw Expt;
                }
	}
                        
                
                
                       

	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------
	
	private String  Array_Dump( String  Args[], int  offset) throws Exception
        {
        	int     argc = offset;
        	String  Dump = "";
        	
        	
        	try
                {
			while( argc < Args.length)
                        {
                        	if( argc > offset)
                        	{
                        		Dump += " ";
                        	}
                        		
                        	Dump += "\"" + Args[ argc++] + "\"";
                        }
                        
                        return( Dump);
                }
                
                catch( Exception Expt)
                {                       
                        throw Expt;
                }
	}
                        
                
                
                       

	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------
	
	private String  TimeStamp_Get() throws Exception
        {
		Calendar      now = Calendar.getInstance();
		NumberFormat  nf2 = NumberFormat.getInstance();
		NumberFormat  nf3 = NumberFormat.getInstance();
		

        	try
        	{	
                      	nf2.setMinimumIntegerDigits(2);
                      	nf2.setMaximumIntegerDigits(2);
                      	nf3.setMinimumIntegerDigits(3);
                      	nf3.setMaximumIntegerDigits(3);

	        	return( "" + now.get( Calendar.YEAR) + nf2.format( now.get( Calendar.MONTH) + 1) + nf2.format( now.get( Calendar.DAY_OF_MONTH))
	        		+ nf2.format( now.get( Calendar.HOUR_OF_DAY)) + nf2.format( now.get( Calendar.MINUTE)) + nf2.format( now.get( Calendar.SECOND))
	        		+ nf3.format( now.get( Calendar.MILLISECOND)));
                }

                catch( Exception Expt)
                {                       
                        throw Expt;
                }
	}
                        
                
                
                       

	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------
	
	private void  TS_Replace( String  Args[], String  TS_Key, String  TimeStamp) throws Exception
        {
        	int     argc, idx;
        	String  Dump = "";
        	
        	
        	try
                {
                	for( argc = 1; argc < Args.length; argc++)
                	{
                		idx = 0;
                		
                		while( idx != -1)
                		{
//                			System.out.println( "Argc: (" + argc + ")   Idx: (" + idx + ")");
                			
	                		idx = Args[argc].indexOf( TS_Key, 0);
	                		
	                		if( idx != -1)
	                		{
//	                		 	System.out.println( "Found: (" + idx + ")   End: (" + (idx + TS_Key.length()) + ")");
	                		 	Args[argc] = Args[argc].substring( 0, idx) + TimeStamp + Args[argc].substring( idx + TS_Key.length());
	                		}
	                	}
	                }
                }
                
                catch( Exception Expt)
                {                       
                        throw Expt;
                }
	}
                        
                
                
                       

	//-------------------------------------------------------------------------------------------------------------------------
	//
	//-------------------------------------------------------------------------------------------------------------------------
	
        public TSLaunch( String args[])
        {
		String   	TimeStamp = "";
		long    	time_begin, time_end;
		double   	time_elapsed, speed;
		Process  	subproc;
		Stream_Gobbler  sgout, sgerr;
		
		
		try
		{                                      
			System.out.println("TSLaunch: " + TSLaunch_Tag + " / " + TSLaunch_Date + " / " + TSLaunch_Author);
			
                        if( args.length < 2)
                        {
                                System.out.println( "Usage: TSLaunch [-k \"TimeStamp_Key\"] Command_to_Run [...Args...]TimeStamp_Key[...Args...]");
                                System.out.println( "       Default: : TimeStamp_Key: (" + TS_Key + ")");
                        }
                        else
                        {
                                System.out.println( "TS Lauch Starting...");
                                
                                Arg_Parse( args);
                    
                                System.out.println( "Initial: Command_to_Run: (" + Sub_Args[0] + ")   Args: (" + Array_Dump( Sub_Args, 1) + ")   TimeStamp_Key: (" + TS_Key + ")");

				TimeStamp = TimeStamp_Get();
				TS_Replace( Sub_Args, TS_Key, TimeStamp);

                                System.out.println( "Final:   Command_to_Run: (" + Sub_Args[0] + ")   Args: (" + Array_Dump( Sub_Args, 1) + ")   TimeStamp: (" + TimeStamp + ")");

				subproc = Runtime.getRuntime().exec( Sub_Args);

				sgout = new Stream_Gobbler( subproc.getInputStream(), System.out);
				sgerr = new Stream_Gobbler( subproc.getErrorStream(), System.out);
				
				System.out.println( "Wainting...");
				
				subproc.waitFor();
				sgout.join();
				sgerr.join();
				
				System.out.println( "Exit_Value: (" + subproc.exitValue() + ")");
				
                                System.out.println( "TS Lauch Completed !");
                                
                                System.exit( subproc.exitValue());
                        }
                }

                catch( Exception Expt)
                {
                        System.out.println("Exception:  (" + Expt + ") !");
                        Expt.printStackTrace();
                }
        }
 
}