2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
33 import java.io.IOException;
36 * Execute system commands. Warning: the current implementation is
39 public class ExecFunctions
42 * Executes a full command (including arguments) in a subshell
43 * and returns the output of the command in a string. Output is
44 * redirected into a temporary fil which is then read into the string
46 public static String execIntoString(String command)
49 return new String(execIntoByteArray(command));
53 * Executes a full command (including arguments) in a subshell
54 * and returns the output of the command in an array of
55 * bytes. Output is redirected into a temporary file which is then
56 * read into an array of bytes
58 public static byte[] execIntoByteArray(String command)
61 File commandOutput=File.createTempFile("mircmd","");
65 // WARNING: unix specific
66 exitStatus=Runtime.getRuntime().exec(new String[]{
69 ">"+commandOutput.getAbsolutePath()
72 catch(InterruptedException e){ throw new IOException(e.toString());}
75 throw new IOException("command exit satus:"+exitStatus);
77 byte [] result=FileFunctions.readFileIntoByteArray
78 (commandOutput.getAbsolutePath());
79 commandOutput.delete();
84 * Executes a full command (including arguments) in a subshell.
85 * Standard input and output go to /dev/null
87 public static void simpleExec(String command)
93 // WARNING: unix specific
94 exitStatus=Runtime.getRuntime().exec(new String[]{
96 command+" "+">/dev/null 2>/dev/null"
99 catch(InterruptedException e){ throw new IOException(e.toString());}
102 throw new IOException("command exit satus:"+exitStatus);