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: John Thompson, 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) 1999 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 | package org.greenstone.gatherer.shell;
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38 |
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39 | import java.awt.Component;
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40 | import java.util.*;
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41 | import org.greenstone.gatherer.Configuration;
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42 | import org.greenstone.gatherer.DebugStream;
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43 | import org.greenstone.gatherer.Dictionary;
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44 | import org.greenstone.gatherer.Gatherer;
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45 | import org.greenstone.gatherer.gui.GProgressBar;
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46 | import org.greenstone.gatherer.util.StaticStrings;
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47 |
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48 | /** This implementation of <i>GShellProgressMonitor</i> is designed to parse and translate the progress of a import.pl call.
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49 | * @author John Thompson, Greenstone Digital Library, University of Waikato
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50 | * @version 2.1
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51 | */
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52 | public class GImportProgressMonitor
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53 | implements GShellProgressMonitor {
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54 | /** Indicates if the progress bar is currently showing a string. */
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55 | private boolean showing_string = false;
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56 | /** Indicates if the GUI has asked the process this object monitors to stop. */
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57 | private boolean stop = false;
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58 | /** A count of the extracted files processed so far. */
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59 | private int extracted_file_count;
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60 | /** The number of documents processed (or rejected) so far. */
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61 | private int file_count;
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62 | /** The next value to be set for the progress bar - I use this rather than a compounding progress measure to try to limit rounding inaccuracies (nothing looks worse than the progress bar having to jump the last 10-15%) */
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63 | private int next_progress_value;
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64 | /** The number of files expected to be scanned by this import process. */
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65 | private int num_expected_docs;
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66 | /** This holds the number of documents actually processed by the import command, as garnered from the final block of text output. */
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67 | private int num_docs;
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68 |
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69 | private int threshold = Configuration.LIBRARIAN_MODE;
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70 | /** The progress bar this monitor updates. */
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71 | private GProgressBar progress_bar;
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72 |
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73 | /** The progress bar that is shared with build monitor. */
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74 | private GProgressBar shared_progress_bar;
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75 |
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76 | /** */
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77 | static final private String BLOCKED_ATTRIBUTE = "blocked";
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78 | static final private String CONSIDERED_ATTRIBUTE = "considered";
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79 | static final private String FAILED_ATTRIBUTE = "failed";
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80 | static final private String IGNORED_ATTRIBUTE = "ignored";
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81 | static final private String IMPORT_ELEMENT = "Import";
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82 | static final private String PROCESSED_ATTRIBUTE = "processed";
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83 |
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84 | static final private String ARGUMENT_ATTRIBUTE = "a";
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85 | /** */
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86 | static final private String NAME_ATTRIBUTE = "n";
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87 | /** */
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88 | static final private String PLUGIN_ATTRIBUTE = "p";
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89 | static final private String REASON_ATTRIBUTE = "r";
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90 | /** The fixed portion of the progress bar used for the calculating of file size and other pre-import functions. */
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91 | static final private int CALCULATION = 50000;
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92 | /** The fixed portion of the progress bar used for extracted metadata. */
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93 | static final private int EXTRACTED = 200000;
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94 | /** The fixed portion of the progress bar used for processed documents. */
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95 | static final private int PROCESSED = 750000;
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96 | /** The maximum value for this progress bar. */
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97 | static final private int MAXIMUM = CALCULATION + EXTRACTED + PROCESSED;
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98 | /** The minimum value for this progress bar. */
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99 | static final private int MINIMUM = 0;
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100 | /** The element name of a file detected message. */
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101 | static final private String FILE_ELEMENT = "File";
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102 | /** The element name of a file processing message. */
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103 | static final private String PROCESSING_ELEMENT = "Processing";
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104 | /** The element name of a processing error message. */
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105 | static final private String PROCESSINGERROR_ELEMENT = "ProcessingError";
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106 | /** The element name of an import complete message. */
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107 | static final private String IMPORTCOMPLETE_ELEMENT = "ImportComplete";
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108 | /** The element name of a file not processed. */
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109 | static final private String NONPROCESSEDFILE_ELEMENT = "NonProcessedFile";
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110 | /** The element name of a file not recognised. */
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111 | static final private String NONRECOGNISEDFILE_ELEMENT = "NonRecognisedFile";
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112 | /** The element name of a Warning message */
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113 | static final private String WARNING_ELEMENT = "Warning";
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114 | /** The element name of a BadArgument message */
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115 | static final private String BADARGUMENT_ELEMENT = "BadArgument";
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116 | static final private String BADARGUMENTVALUE_ELEMENT = "BadArgumentValue";
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117 | static final private String BADPLUGIN_ELEMENT = "BadPlugin";
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118 |
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119 | public GImportProgressMonitor() {
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120 | progress_bar = new GProgressBar();
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121 | progress_bar.setIndeterminate(false);
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122 | progress_bar.setMaximum(MAXIMUM);
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123 | progress_bar.setMinimum(MINIMUM);
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124 | progress_bar.setString(null);
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125 | progress_bar.setStringPainted(true);
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126 | next_progress_value = CALCULATION;
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127 | shared_progress_bar = new GProgressBar();
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128 | shared_progress_bar.setIndeterminate(false);
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129 | shared_progress_bar.setMaximum(MAXIMUM * 2);
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130 | shared_progress_bar.setMinimum(MINIMUM);
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131 | shared_progress_bar.setString(null); // Default string
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132 | shared_progress_bar.setStringPainted(true);
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133 | setValue(MINIMUM);
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134 | }
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135 |
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136 | /** Method to register a new progress bar with this monitor.
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137 | * @param progress_bar The new <strong>GProgressBar</strong>.
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138 | */
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139 | public void addProgressBar(GProgressBar progress_bar) {
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140 | this.progress_bar = progress_bar;
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141 | progress_bar.setMaximum(MAXIMUM);
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142 | progress_bar.setMinimum(MINIMUM);
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143 | setValue(MINIMUM);
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144 | next_progress_value = CALCULATION;
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145 | }
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146 |
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147 | /** Determine the script exit value according to the progress monitor. This gets around a problem where several script failures actually result with a successful exit value.
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148 | * @return A <i>int</i> with a value of zero if and only if the script was successful.
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149 | */
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150 | public int exitValue() {
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151 | if(num_docs > 0) {
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152 | return 0;
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153 | }
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154 | return 1;
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155 | }
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156 |
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157 | /** Retrieve the number of documents recorded by the import monitor during the execution of the import scripts.
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158 | * @return An <i>int</i> giving the document number.
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159 | */
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160 | public int getNumberOfDocuments() {
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161 | return num_docs;
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162 | }
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163 |
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164 | /** Method to retrieve whatever control is being used as the progress indicator. Usually a <strong>GProgressBar</strong> but there may be others implemented later.
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165 | * @return A <strong>Component</strong> on which the progress of the process is being displayed.
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166 | */
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167 | public Component getProgress() {
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168 | return progress_bar;
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169 | }
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170 |
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171 | public GProgressBar getSharedProgress() {
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172 | return shared_progress_bar;
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173 | }
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174 |
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175 | public void messageOnProgressBar(String message)
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176 | {
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177 | if (message!=null && !message.equals("")) {
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178 | progress_bar.setString(message);
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179 | shared_progress_bar.setString(message);
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180 | showing_string = true;
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181 | }
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182 | else {
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183 | progress_bar.setString(null);
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184 | shared_progress_bar.setString(null);
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185 | showing_string = false;
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186 | }
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187 | }
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188 |
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189 | /** Method to determine the state of the stop flag, which may be set by the visual component that created this monitor.
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190 | * @return A <strong>boolean</strong> indicating if the process has been asked to stop.
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191 | */
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192 | public synchronized boolean hasSignalledStop() {
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193 | return stop;
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194 | }
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195 |
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196 | /** Inform the progress bar that it should programatically increment progress by one step. This is only called during the metadata archive extraction so each step should be (1000000 / 5) / num_docs. */
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197 | public void increment() {
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198 | extracted_file_count++;
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199 | // The current progress is calculated to be:
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200 | // The fixed calculation value plus the fixed processed value plus some portion of the fixed extracted value. This portion is the extracted_file_count over the total number of documents available. Note that this breaks badly for bibliographical files (for now).
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201 | setValue(CALCULATION + PROCESSED + ((EXTRACTED * extracted_file_count) / num_docs));
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202 | }
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203 |
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204 | /** This method is used to 'feed in' a line of text captured from the process.
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205 | * @param queue a queue which at the moment should contain a single GShellEvent
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206 | */
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207 | public void process(ArrayList queue) {
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208 | // Retrieve the first event.
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209 | GShellEvent event = (GShellEvent) queue.get(0);
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210 | // Remove 'import.pl> ' bit
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211 | String line = event.getMessage();
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212 | line = line.substring(line.indexOf(StaticStrings.GREATER_THAN_CHARACTER) + 1);
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213 | line = line.trim();
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214 | // System.err.println("**** line = " + line);
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215 |
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216 | ///ystem.err.println("Process: " + line);
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217 | if(line.startsWith(StaticStrings.LESS_THAN_CHARACTER) && line.endsWith(StaticStrings.GREATER_THAN_CHARACTER)) {
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218 | // No original event is passed on, even in the lower modes
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219 | event.veto();
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220 | // Create a new element from it
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221 | GShellElement element = new GShellElement(line);
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222 | String name = element.getElementName();
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223 | ///ystem.err.println("Gatherer tag: " + name);
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224 | // We may be reading a file. Remember we have to offset process as we recieve this message 'before' a document is processed. Hence the use of 'next_progress_value'
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225 | if(name.equals(IMPORT_ELEMENT)) {
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226 | ///ystem.err.println("#Import");
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227 | // We're into parsing output, so we don't need the 'calculating file size' etc string.
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228 | if(showing_string) {
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229 | progress_bar.setString(null);
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230 | showing_string = false;
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231 | }
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232 | if(Configuration.getMode() <= threshold) {
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233 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.ImportBegun1"), event.getStatus()));
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234 | }
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235 | }
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236 | else if(name.equals(FILE_ELEMENT)) {
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237 | ///ystem.err.println("#File");
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238 | file_count++;
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239 | // Set the next progress
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240 | if(next_progress_value > 0) {
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241 | setValue(next_progress_value);
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242 | }
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243 | // Now we calculate the next progress value
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244 | next_progress_value = CALCULATION + ((PROCESSED * file_count) / num_expected_docs);
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245 | event.veto(); // Unconditional veto
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246 | }
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247 | // Or we're being told what plugin is actually processing the file
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248 | else if(name.equals(PROCESSING_ELEMENT)) {
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249 | ///ystem.err.println("#FileProcessing");
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250 | // If we are at lower mode settings fire a new 'dumbed down' event
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251 | if(Configuration.getMode() <= threshold) {
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252 | String args[] = new String[2];
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253 | args[0] = element.getAttribute(NAME_ATTRIBUTE);
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254 | args[1] = element.getAttribute(PLUGIN_ATTRIBUTE);
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255 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.FileProcessing", args), event.getStatus()));
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256 | args = null;
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257 | }
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258 | }
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259 | // processing error
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260 | else if (name.equals(PROCESSINGERROR_ELEMENT)) {
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261 | if(Configuration.getMode() <= threshold) {
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262 | String args[] = new String[1];
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263 | args[0] = element.getAttribute(NAME_ATTRIBUTE);
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264 | String reason = element.getAttribute(REASON_ATTRIBUTE);
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265 | if (reason == null || reason.equals("")) {
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266 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.FileProcessingError", args), event.getStatus()));
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267 | }
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268 | else {
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269 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.FileProcessingError", args) + " (" + reason + ")", event.getStatus()));
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270 | }
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271 | args = null;
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272 | }
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273 | }
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274 | // unrecognised file
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275 | else if (name.equals(NONRECOGNISEDFILE_ELEMENT)) {
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276 | if(Configuration.getMode() <= threshold) {
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277 | String args[] = new String[1];
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278 | args[0] =element.getAttribute(NAME_ATTRIBUTE);
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279 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.FileNotRecognised", args), event.getStatus()));
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280 | args = null;
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281 | }
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282 | }
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283 | // unprocessed file
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284 | else if (name.equals(NONPROCESSEDFILE_ELEMENT)) {
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285 | if(Configuration.getMode() <= threshold) {
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286 | String args[] = new String[1];
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287 | args[0] =element.getAttribute(NAME_ATTRIBUTE);
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288 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.FileNotProcessed", args), event.getStatus()));
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289 | args = null;
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290 | }
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291 | }
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292 | // We had a bad argument to a plugin
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293 | else if (name.equals(BADARGUMENT_ELEMENT)) {
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294 | if(Configuration.getMode() <= threshold) {
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295 | String args[] = new String[1];
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296 | args[0] = element.getAttribute(ARGUMENT_ATTRIBUTE);
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297 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.BadArgument", args), event.getStatus()));
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298 | args = null;
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299 | }
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300 | }
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301 | // We had a bad argument value to a plugin
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302 | else if (name.equals(BADARGUMENTVALUE_ELEMENT)) {
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303 | if(Configuration.getMode() <= threshold) {
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304 | String args[] = new String[1];
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305 | args[0] = element.getAttribute(ARGUMENT_ATTRIBUTE);
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306 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.BadArgumentValue", args), event.getStatus()));
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307 | args = null;
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308 | }
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309 | }
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310 | // And this one tellsa us the plugin
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311 | else if (name.equals(BADPLUGIN_ELEMENT)) {
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312 | if(Configuration.getMode() <= threshold) {
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313 | String args[] = new String[1];
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314 | args[0] = element.getAttribute(PLUGIN_ATTRIBUTE);
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315 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.BadPluginOptions", args), event.getStatus()));
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316 | args = null;
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317 | }
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318 | }
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319 | else if (name.equals(WARNING_ELEMENT)) {
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320 | if(Configuration.getMode() <= threshold) {
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321 | String args[] = new String[1];
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322 | args[0] = element.getAttribute(PLUGIN_ATTRIBUTE);
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323 | String reason = element.getAttribute(REASON_ATTRIBUTE);
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324 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.Warning", args) + " " + reason, event.getStatus()));
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325 | args = null;
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326 | }
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327 | }
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328 |
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329 |
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330 | // Or the import complete element
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331 | else if(name.equals(IMPORTCOMPLETE_ELEMENT)) {
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332 | // Set the next progress
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333 | setValue(next_progress_value);
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334 | // If we are at lower mode settings fire a new 'dumbed down' event
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335 | if(Configuration.getMode() <= threshold) {
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336 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.ImportComplete1"), event.getStatus()));
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337 | String considered_str = element.getAttribute(CONSIDERED_ATTRIBUTE);
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338 |
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339 | if (considered_str.equals(StaticStrings.ONE_CHARACTER)) {
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340 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.ImportComplete2.1"), event.getStatus()));
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341 | } else {
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342 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.ImportComplete2", considered_str), event.getStatus()));
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343 | }
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344 | considered_str = null;
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345 | // The number of documents processed
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346 | String processed_str = element.getAttribute(PROCESSED_ATTRIBUTE);
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347 | if(!processed_str.equals(StaticStrings.ZERO_CHARACTER)) {
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348 | if(processed_str.equals(StaticStrings.ONE_CHARACTER)) {
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349 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Processed.1"), event.getStatus()));
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350 | }
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351 | else {
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352 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Processed", processed_str), event.getStatus()));
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353 | }
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354 | }
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355 | // Try to set num docs
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356 | try {
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357 | num_docs = Integer.parseInt(processed_str);
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358 | }
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359 | catch(Exception exception) {
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360 | num_docs = 0;
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361 | }
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362 | processed_str = null;
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363 |
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364 | // The number of documents blocked
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365 | String blocked_str = element.getAttribute(BLOCKED_ATTRIBUTE);
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366 | if(!blocked_str.equals(StaticStrings.ZERO_CHARACTER)) {
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367 | if (blocked_str.equals(StaticStrings.ONE_CHARACTER)) {
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368 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Blocked.1"), event.getStatus()));
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369 | } else {
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370 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Blocked", blocked_str), event.getStatus()));
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371 | }
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372 | }
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373 | blocked_str = null;
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374 |
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375 | // The number of documents ignored
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376 | String ignored_str = element.getAttribute(IGNORED_ATTRIBUTE);
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377 | if(!ignored_str.equals(StaticStrings.ZERO_CHARACTER)) {
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378 | if(ignored_str.equals(StaticStrings.ONE_CHARACTER)) {
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379 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Ignored.1"), event.getStatus()));
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380 | } else {
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381 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Ignored", ignored_str), event.getStatus()));
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382 | }
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383 | }
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384 | ignored_str = null;
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385 |
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386 | // The number of documents failed
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387 | String failed_str = element.getAttribute(FAILED_ATTRIBUTE);
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388 | if(!failed_str.equals(StaticStrings.ZERO_CHARACTER)) {
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389 | if(failed_str.equals(StaticStrings.ONE_CHARACTER)) {
|
---|
390 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Failed.1"), event.getStatus()));
|
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391 | } else {
|
---|
392 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), " "+Dictionary.get("GShell.Import.ImportComplete.Failed", failed_str), event.getStatus()));
|
---|
393 | }
|
---|
394 | }
|
---|
395 | failed_str = null;
|
---|
396 | // Message is finally ready
|
---|
397 | queue.add(new GShellEvent(event.getSource(), 0, event.getType(), Dictionary.get("GShell.Import.ImportComplete3"), event.getStatus()));
|
---|
398 | } // if mode below threshhold
|
---|
399 | else {
|
---|
400 | // Try to set num docs
|
---|
401 | String processed_str = element.getAttribute(PROCESSED_ATTRIBUTE);
|
---|
402 | try {
|
---|
403 | num_docs = Integer.parseInt(processed_str);
|
---|
404 | }
|
---|
405 | catch(Exception exception) {
|
---|
406 | num_docs = 0;
|
---|
407 | }
|
---|
408 | }
|
---|
409 | }
|
---|
410 | else {
|
---|
411 | // Veto it
|
---|
412 | event.veto();
|
---|
413 | }
|
---|
414 | } // GLI output
|
---|
415 | else if(Configuration.getMode() <= threshold) {
|
---|
416 | event.veto();
|
---|
417 | }
|
---|
418 | }
|
---|
419 |
|
---|
420 | public void reset() {
|
---|
421 | setValue(MINIMUM);
|
---|
422 | progress_bar.setString(null);
|
---|
423 | progress_bar.updateUI();
|
---|
424 | }
|
---|
425 |
|
---|
426 | public void saving() {
|
---|
427 | progress_bar.setString(Dictionary.get("SaveProgressDialog.Title"));
|
---|
428 | showing_string = true;
|
---|
429 | }
|
---|
430 |
|
---|
431 | /** Since the creator of this process monitor is actually in the GUI, this class provides the simpliest way to send a cancel process message between the two.
|
---|
432 | * @param state The desired state of the stop flag as a <strong>boolean</strong>.
|
---|
433 | */
|
---|
434 | public synchronized void setStop(boolean state) {
|
---|
435 | this.stop = state;
|
---|
436 | }
|
---|
437 |
|
---|
438 | /** This method resets this monitor to the start, reseting the process parsing and progress bar.
|
---|
439 | */
|
---|
440 | public void start() {
|
---|
441 | stop = false;
|
---|
442 | setValue(MINIMUM);
|
---|
443 | progress_bar.setString(Dictionary.get("FileActions.Calculating_Size"));
|
---|
444 | showing_string = true;
|
---|
445 | extracted_file_count = 0;
|
---|
446 | file_count = 0;
|
---|
447 | next_progress_value = -1;
|
---|
448 | num_docs = -1;
|
---|
449 | // !! HACK: This is multiplied by 2 because the metadata_read now outputs a <File> tag also
|
---|
450 | // Ideally the metadata read pass would be completely separate and the GLI could work out the number
|
---|
451 | // of documents accurately and provide a much better progress bar
|
---|
452 | num_expected_docs = Gatherer.c_man.getCollection().getCount() * 2;
|
---|
453 | }
|
---|
454 |
|
---|
455 | /** This method indicates the process is complete.
|
---|
456 | */
|
---|
457 | public void stop() {
|
---|
458 | setValue(MAXIMUM);
|
---|
459 | }
|
---|
460 |
|
---|
461 | int previous_value = -1;
|
---|
462 |
|
---|
463 | private void setValue(int value)
|
---|
464 | {
|
---|
465 | // Don't let the value go higher than the maximum
|
---|
466 | if (value > MAXIMUM) {
|
---|
467 | DebugStream.println("Error: Tried to set progress bar higher than maximum!\n");
|
---|
468 | return;
|
---|
469 | }
|
---|
470 | // Don't let the value go backwards
|
---|
471 | if (value != 0 && value < previous_value) {
|
---|
472 | DebugStream.println("Error: Tried to set progress bar smaller than previous!\n");
|
---|
473 | return;
|
---|
474 | }
|
---|
475 |
|
---|
476 | progress_bar.setValue(value);
|
---|
477 | shared_progress_bar.setValue(value);
|
---|
478 | previous_value = value;
|
---|
479 | }
|
---|
480 | }
|
---|
481 |
|
---|