svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.utils / src / main / java / org / gvsig / utils / swing / threads / MonitorableDecoratorMainFirst.java @ 40561
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1 | 40561 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40561 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40435 | jjdelcerro | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40561 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40561 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40435 | jjdelcerro | *
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21 | 40561 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | /* CVS MESSAGES:
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25 | *
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26 | * $Id: MonitorableDecoratorMainFirst.java 29631 2009-06-29 16:56:19Z jpiera $
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27 | * $Log$
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28 | * Revision 1.2 2007-05-15 07:21:20 cesar
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29 | * Add the finished method for execution from Event Dispatch Thread
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30 | *
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31 | * Revision 1.1 2006/05/08 15:52:30 azabala
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32 | * *** empty log message ***
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33 | *
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34 | * Revision 1.2 2006/04/18 15:17:20 azabala
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35 | * a?adidos comentarios a metodos
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36 | *
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37 | * Revision 1.1 2006/03/14 19:23:42 azabala
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38 | * *** empty log message ***
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39 | *
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40 | *
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41 | */
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42 | package org.gvsig.utils.swing.threads; |
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43 | /**
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44 | * Task that wraps a main task, executing it and doing some preprocess
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45 | * stuff after main task, by executing a secondary task
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46 | * @author azabala
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47 | *
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48 | */
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49 | public class MonitorableDecoratorMainFirst implements IMonitorableTask { |
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50 | |||
51 | /**
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52 | * main task
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53 | */
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54 | private IMonitorableTask mainTask;
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55 | /**
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56 | * preprocess task
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57 | */
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58 | private IMonitorableTask secondaryTask;
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59 | /**
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60 | * task that is currently in execution
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61 | */
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62 | private IMonitorableTask currentTask;
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63 | /**
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64 | * flag for cancelations
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65 | */
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66 | private boolean canceled = false; |
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67 | /**
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68 | * flag for finalization
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69 | */
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70 | private boolean finished = false; |
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71 | |||
72 | /**
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73 | * Constructor
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74 | * @param mainTask
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75 | * @param secondaryTask
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76 | */
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77 | public MonitorableDecoratorMainFirst(IMonitorableTask mainTask, IMonitorableTask secondaryTask){
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78 | this.mainTask = mainTask;
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79 | this.secondaryTask = secondaryTask;
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80 | this.currentTask = mainTask;
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81 | } |
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82 | |||
83 | /**
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84 | * Makes some preprocess steps, and return a boolean flag that
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85 | * indicates if this task can be launched.
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86 | * @return
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87 | */
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88 | public boolean preprocess(){ |
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89 | if(mainTask != null && secondaryTask != null) |
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90 | return true; |
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91 | else
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92 | return false; |
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93 | } |
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94 | |||
95 | |||
96 | public int getInitialStep() { |
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97 | return mainTask.getInitialStep();
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98 | } |
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99 | |||
100 | public int getFinishStep() { |
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101 | //we add 1 because secondaryTask is consideered as
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102 | //a step
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103 | return mainTask.getFinishStep() + 1; |
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104 | } |
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105 | |||
106 | public int getCurrentStep() { |
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107 | if(currentTask == mainTask){
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108 | return mainTask.getCurrentStep();
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109 | }else{
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110 | return getFinishStep();
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111 | } |
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112 | } |
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113 | |||
114 | public String getStatusMessage() { |
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115 | return mainTask.getStatusMessage();
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116 | } |
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117 | |||
118 | public String getNote() { |
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119 | return mainTask.getNote();
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120 | } |
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121 | |||
122 | public boolean isDefined() { |
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123 | return mainTask.isDefined();
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124 | } |
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125 | |||
126 | public void cancel() { |
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127 | canceled = true;
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128 | currentTask.cancel(); |
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129 | |||
130 | } |
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131 | |||
132 | public void run() throws Exception { |
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133 | currentTask = mainTask; |
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134 | if(! canceled)
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135 | mainTask.run(); |
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136 | if(! canceled){
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137 | currentTask = secondaryTask; |
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138 | secondaryTask.run(); |
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139 | } |
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140 | finished = true;
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141 | |||
142 | |||
143 | } |
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144 | |||
145 | public boolean isCanceled() { |
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146 | return canceled == true; |
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147 | } |
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148 | |||
149 | public boolean isFinished() { |
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150 | if(currentTask == mainTask){
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151 | return currentTask.isFinished();
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152 | }else
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153 | return finished == true; |
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154 | } |
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155 | |||
156 | public void finished() { |
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157 | |||
158 | } |
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159 | |||
160 | } |