1 | package org.greenstone.admin.guiext;
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2 |
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3 | import org.w3c.dom.Element;
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4 | import org.w3c.dom.NodeList;
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5 |
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6 | import java.util.ArrayList;
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7 |
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8 | import java.awt.BorderLayout;
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9 |
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10 | import java.awt.event.ActionListener;
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11 | import java.awt.event.ActionEvent;
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12 |
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13 | import javax.swing.JTextArea;
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14 | import javax.swing.JButton;
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15 | import javax.swing.JPanel;
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16 |
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17 | import java.lang.reflect.Constructor;
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18 | import java.lang.reflect.Method;
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19 |
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20 | import java.io.File;
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21 | import java.io.BufferedReader;
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22 | import java.io.InputStreamReader;
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23 |
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24 | import org.greenstone.admin.GAI;
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25 | import org.greenstone.admin.LoggedMessageArea;
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26 |
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27 | public class CommandStep extends Step
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28 | {
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29 | protected ArrayList _commandsAndCallbacks = new ArrayList();
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30 | protected LoggedMessageArea _messageArea = new LoggedMessageArea(this.getClass());
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31 | protected int _threadCount = -1;
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32 |
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33 | /*
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34 | Command[] _commands = null;
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35 | Callback[] _callbacks = null;
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36 | */
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37 |
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38 | public CommandStep(Element commandStepElement, SequenceList parent)
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39 | {
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40 | super(commandStepElement, parent);
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41 |
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42 | if(commandStepElement != null){
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43 | NodeList commandAndCallbackElements = commandStepElement.getElementsByTagName("*");
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44 |
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45 | for(int i = 0; i < commandAndCallbackElements.getLength(); i++){
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46 | Element currentChild = (Element)commandAndCallbackElements.item(i);
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47 | if(currentChild.getTagName().equalsIgnoreCase(ExtXMLHelper.COMMAND)){
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48 | _commandsAndCallbacks.add(new Command(currentChild, this));
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49 | }
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50 | else if (currentChild.getTagName().equalsIgnoreCase(ExtXMLHelper.CALLBACK)){
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51 | _commandsAndCallbacks.add(new Callback(currentChild, this));
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52 | }
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53 | else if (currentChild.getTagName().equalsIgnoreCase(ExtXMLHelper.OS)){
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54 | }
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55 | else{
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56 | System.err.println(currentChild.getTagName() + "A child of this command <" + ExtXMLHelper.STEP + "> is not either a <" + ExtXMLHelper.CALLBACK + "> element or a <" + ExtXMLHelper.COMMAND + "> element");
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57 | }
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58 | }
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59 |
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60 | if(_commandsAndCallbacks.size() == 0){
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61 | System.err.println("This command step does not have any <" + ExtXMLHelper.COMMAND + "> or <" + ExtXMLHelper.CALLBACK +"> elements");
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62 | }
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63 |
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64 | _button.addActionListener(new CommandButtonListener());
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65 |
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66 | }
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67 | else{
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68 | System.err.println("This command <" + ExtXMLHelper.STEP + "> element is null");
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69 | }
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70 | }
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71 |
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72 | public class CommandButtonListener implements ActionListener
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73 | {
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74 | public void actionPerformed(ActionEvent e)
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75 | {
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76 | ExtensionInformation info = _parent.getParent();
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77 |
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78 | JPanel panel = new JPanel();
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79 | panel.setLayout(new BorderLayout());
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80 | panel.add(_messageArea, BorderLayout.CENTER);
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81 | info.changeExtPane(panel);
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82 |
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83 | _button.setEnabled(false);
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84 | _button.setText("Running...");
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85 |
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86 | _threadCount = 0;
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87 | Thread newThread = new Thread((Runnable)_commandsAndCallbacks.get(0));
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88 | newThread.start();
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89 | }
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90 | }
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91 |
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92 | public JTextArea getMessageArea()
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93 | {
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94 | return _messageArea;
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95 | }
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96 |
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97 | public void threadError()
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98 | {
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99 | _button.setText(_label);
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100 | _button.setEnabled(true);
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101 | }
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102 |
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103 | public void startNextThread()
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104 | {
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105 | _threadCount++;
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106 |
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107 | if(_threadCount < _commandsAndCallbacks.size()){
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108 | Thread newThread = new Thread((Runnable)_commandsAndCallbacks.get(_threadCount));
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109 | newThread.start();
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110 | }
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111 | else{
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112 | _button.setText(_label);
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113 | _button.setEnabled(true);
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114 | _parent.registerStepCompletion(CommandStep.this);
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115 | }
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116 | }
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117 | } |
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