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.FileInputStream;
34 import java.io.IOException;
35 import java.io.OutputStream;
38 * Execute system commands. Warning: the current implementation is
41 public class ExecFunctions
44 * Executes a full command (including arguments) in a subshell
45 * and returns the output of the command in a string. Output is
46 * redirected into a temporary fil which is then read into the string
48 public static String execIntoString(String command)
51 return new String(execIntoByteArray(command));
55 * Executes a full command (including arguments) in a subshell
56 * and returns the output of the command in an array of
57 * bytes. Output is redirected into a temporary fil which is then
58 * read into the string
60 public static byte[] execIntoByteArray(String command)
63 File commandOutput=File.createTempFile("mircmd","");
67 // WARNING: unix specific
68 exitStatus=Runtime.getRuntime().exec(new String[]{
71 ">"+commandOutput.getAbsolutePath()
74 catch(InterruptedException e){ throw new IOException(e.toString());}
77 throw new IOException("command exit satus:"+exitStatus);
79 byte [] result=FileFunctions.readFileIntoByteArray
80 (commandOutput.getAbsolutePath());
81 commandOutput.delete();
86 * Executes a full command (including arguments) in a subshell.
87 * Standard input and output go to /dev/null
89 public static void simpleExec(String command)
95 // WARNING: unix specific
96 exitStatus=Runtime.getRuntime().exec(new String[]{
98 command+" "+">/dev/null 2>/dev/null"
101 catch(InterruptedException e){ throw new IOException(e.toString());}
104 throw new IOException("command exit satus:"+exitStatus);