1 | /**
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2 | *#########################################################################
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3 | *
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4 | * A component of the Gatherer application, part of the Greenstone digital
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5 | * library suite from the New Zealand Digital Library Project at the
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6 | * University of Waikato, New Zealand.
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7 | *
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8 | * <BR><BR>
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9 | *
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10 | * Author: Sam McIntosh, Greenstone Digital Library, University of Waikato
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11 | *
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12 | * <BR><BR>
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13 | *
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14 | * Copyright (C) 2011 New Zealand Digital Library Project
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15 | *
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16 | * <BR><BR>
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17 | *
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18 | * This program is free software; you can redistribute it and/or modify
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19 | * it under the terms of the GNU General Public License as published by
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20 | * the Free Software Foundation; either version 2 of the License, or
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21 | * (at your option) any later version.
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22 | *
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23 | * <BR><BR>
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24 | *
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25 | * This program is distributed in the hope that it will be useful,
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26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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28 | * GNU General Public License for more details.
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29 | *
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30 | * <BR><BR>
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31 | *
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32 | * You should have received a copy of the GNU General Public License
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33 | * along with this program; if not, write to the Free Software
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34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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35 | *########################################################################
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36 | */
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37 |
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38 | package org.greenstone.gatherer.util;
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39 | import java.io.File;
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40 |
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41 | /** Class for GS3, for issuing ant commands from GLI */
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42 | public class GS3ServerThread extends Thread
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43 | {
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44 | String _gsdl3_src_path = "";
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45 | String _ant_command = "";
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46 |
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47 | public GS3ServerThread(String gsdl3_src_path, String ant_command)
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48 | {
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49 | _gsdl3_src_path = gsdl3_src_path;
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50 | _ant_command = ant_command; // "restart"
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51 | }
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52 |
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53 | public void run()
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54 | {
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55 | try
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56 | {
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57 | ///System.err.println("**** GS3 server : " + _ant_command);
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58 |
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59 | String shellCommand = null;
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60 | Process p = null;
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61 | if (Utility.isWindows())
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62 | {
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63 | if(_ant_command.indexOf("start") != -1) { // running an "ant (re)start" command on windows, run start
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64 | _ant_command = "start";
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65 | }
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66 | // The path in quotes, and the entire sequence of commands in quotes as well
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67 | // E.g. the following works: cmd /C "cd "C:\path\to\greenstone3" && ant stop"
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68 | // and it preserves any spaces in the path to GSDL3SRCHOME (_gsdl3_src_path).
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69 | p = Runtime.getRuntime().exec("cmd /C \"cd \"" + _gsdl3_src_path + File.separator + "\" && ant " + _ant_command + "\"");
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70 | }
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71 | else
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72 | {
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73 | if(_ant_command.indexOf("start") != -1) { // if running an "ant (re)start" command on non-Windows, run restart
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74 | _ant_command = "restart";
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75 | }
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76 | p = Runtime.getRuntime().exec(new String[]{"/bin/bash", "-c", "ant " + _ant_command + " -f \"" + _gsdl3_src_path + File.separator + "build.xml\""});
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77 | }
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78 |
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79 | if (p != null) {
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80 | // in order for the process.waitFor() method to work with Java 6 (JRE 6 is included in GS binaries)
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81 | // need to make sure the IOstreams of the process are not blocked. For Java 7, this is not necessary
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82 | // and a waitFor() is sufficient. But with Java 6, the waitFor() causes the server to finally start
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83 | // after the user has quit GLI.
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84 |
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85 | // Process takes no input, but we will still catch this iostream too
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86 | // And we'll catch the error and output streams to prevent them from blocking during waitFor()
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87 | // (For normal input and output stream handling using the Gobblers, see FormatConversionDialog.java)
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88 | OutputStreamGobbler inputGobbler = new OutputStreamGobbler(p.getOutputStream(), null);
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89 | InputStreamGobbler errorGobbler = new InputStreamGobbler(p.getErrorStream(), true);
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90 | InputStreamGobbler outputGobbler = new InputStreamGobbler(p.getInputStream());
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91 |
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92 | errorGobbler.start();
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93 | outputGobbler.start();
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94 | inputGobbler.start();
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95 |
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96 | // the important part: wait for the process (ant stop or start or re-start to terminate)
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97 | int result = p.waitFor();
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98 | if(result != 0) {
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99 | System.err.println("**** Failed to successfully " + _ant_command + " the GS3 server.");
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100 | }
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101 |
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102 | outputGobbler.join();
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103 | errorGobbler.join();
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104 | inputGobbler.join();
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105 | } else {
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106 | System.err.println("**** Could not start the Process to " + _ant_command + " the GS3 server.");
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107 | }
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108 |
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109 | }
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110 | catch(Exception ex)
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111 | {
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112 | ex.printStackTrace();
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113 | }
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114 | }
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115 | }
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