1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 package com.symbian.smt.gui.builder;

    17 

    18 import java.io.BufferedReader;

    19 import java.io.IOException;

    20 import java.io.InputStreamReader;

    21 import java.io.OutputStream;

    22 import java.util.List;

    23 

    24 import org.eclipse.swt.widgets.Display;

    25 

    26 import com.symbian.smt.gui.Logger;

    27 import com.symbian.smt.gui.views.ConsoleOutput;

    28 

    29 public class SMTProcess {

    30 

    31 	/**

    32 	 * Runs the command line base System Model Generator

    33 	 * 

    34 	 * @param List

    35 	 *            <String> Arguments for the CLI

    36 	 * @return int The exit code from the System Model Generator

    37 	 */

    38 	public int run(List<String> command) {

    39 		int result = 0;

    40 

    41 		// Reset the console

    42 		Display.getDefault().asyncExec(new Runnable() {

    43 			public void run() {

    44 				ConsoleOutput.reset();

    45 

    46 			}

    47 		});

    48 

    49 		// Print the command line string to the console output

    50 		StringBuilder commandLineString = new StringBuilder();

    51 

    52 		for (String item : command) {

    53 			commandLineString.append(item.concat(" "));

    54 		}

    55 

    56 		writeToConsoleOutput("Executing '" + commandLineString.toString() + "'");

    57 

    58 		// First we check that Perl is available

    59 		ProcessBuilder pbCheckPerl = new ProcessBuilder("perl", "-v");

    60 		pbCheckPerl.redirectErrorStream(true);

    61 

    62 		try {

    63 			pbCheckPerl.start();

    64 		} catch (IOException e) {

    65 			writeToConsoleOutput("Error: Perl is not installed");

    66 			return 9009; // Same exit code as Windows produces for a program not

    67 							// found

    68 		}

    69 

    70 		ProcessBuilder pb = new ProcessBuilder(command);

    71 

    72 		// Redirect STDERR to STDOUT

    73 		pb.redirectErrorStream(true);

    74 

    75 		try {

    76 			// Start the process

    77 			final Process p = pb.start();

    78 

    79 			// Get and close the process STDIN

    80 			OutputStream out = p.getOutputStream();

    81 			out.close();

    82 

    83 			// Create a reader to read from the process STDOUT

    84 			BufferedReader inReader = new BufferedReader(new InputStreamReader(

    85 					p.getInputStream()));

    86 

    87 			// Print STDOUT to the command output view

    88 			String line;

    89 			while ((line = inReader.readLine()) != null) {

    90 				writeToConsoleOutput(line);

    91 			}

    92 

    93 			// Close the process STDOUT pipe when finished

    94 			inReader.close();

    95 

    96 			try {

    97 				// Ensure the process has finished and get the exit code

    98 				result = p.waitFor();

    99 			} catch (InterruptedException e) {

   100 				Logger.log(e.getMessage(), e);

   101 			} finally {

   102 				// Destroy the process

   103 				p.destroy();

   104 			}

   105 		} catch (IOException e) {

   106 			Logger.log(e.getMessage(), e);

   107 		}

   108 

   109 		return result;

   110 

   111 	}

   112 

   113 	private void writeToConsoleOutput(final String string) {

   114 		Display.getDefault().asyncExec(new Runnable() {

   115 			public void run() {

   116 				ConsoleOutput.addText(string);

   117 			}

   118 		});

   119 	}

   120 }