1 | package org.apollo.util;
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2 |
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3 | import java.awt.Point;
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4 | import java.io.BufferedReader;
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5 | import java.io.FileNotFoundException;
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6 | import java.io.FileReader;
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7 | import java.io.IOException;
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8 | import java.util.LinkedList;
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9 | import java.util.List;
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10 |
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11 | /**
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12 | * Performs text item searches in expeditee files.
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13 | *
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14 | * @author Brook Novak
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15 | *
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16 | */
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17 | public class ExpediteeFileTextSearch {
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18 |
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19 | private ExpediteeFileTextSearch() {}
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20 |
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21 | /**
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22 | * Peforms a perfix search.
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23 | *
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24 | * @param framePath
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25 | * The path of the frame file to search. Must not be null.
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26 | *
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27 | * @param textPrefixes
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28 | * The prefixes of the text to match against. Must not be null or empty.
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29 | *
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30 | * @return
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31 | * A list of results. Never null.
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32 | *
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33 | * @throws FileNotFoundException
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34 | * If the frame path does not exist.
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35 | *
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36 | * @throws IOException
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37 | * If a read operation failed.
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38 | *
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39 | * @throws NullPointerException
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40 | * If framePath or textPrefixes is null.
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41 | *
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42 | * @throws IllegalArgumentException
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43 | * If textPrefixes is empty.
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44 | */
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45 | public static List<TextItemSearchResult> prefixSearch(String framePath, String[] textPrefixes)
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46 | throws FileNotFoundException, IOException {
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47 |
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48 | if (framePath == null)
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49 | throw new NullPointerException("framePath");
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50 | else if (textPrefixes == null)
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51 | throw new NullPointerException("textPrefix");
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52 | else if (textPrefixes.length == 0)
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53 | throw new IllegalArgumentException("textPrefix");
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54 |
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55 | for (String prefix : textPrefixes)
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56 | if (prefix == null) throw new NullPointerException("textPrefix");
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57 |
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58 | List<TextItemSearchResult> results = new LinkedList<TextItemSearchResult>();
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59 |
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60 | BufferedReader reader = null;
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61 |
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62 | try
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63 | {
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64 | reader = new BufferedReader(new FileReader(framePath));
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65 |
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66 | String line = null;
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67 |
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68 | String strippedTextualLine = null; // not null if match
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69 | String framelinkLine = null;
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70 | LinkedList<String> currentDataLines = new LinkedList<String>();
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71 | String positionLine = null;
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72 |
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73 | while (((line = reader.readLine()) != null)) {
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74 |
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75 | if (line.length() <= 2) continue;
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76 |
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77 | if (line.startsWith("S")) {
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78 |
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79 | if (strippedTextualLine != null) {
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80 | results.add(createResult(strippedTextualLine, framelinkLine, currentDataLines, positionLine));
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81 | }
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82 |
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83 | // Reset - next item to parse
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84 | currentDataLines.clear();
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85 | strippedTextualLine = null;
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86 | framelinkLine = null;
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87 | positionLine = null;
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88 |
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89 | } else if (line.startsWith("T ")) { // leave space - important
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90 |
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91 | strippedTextualLine = line.substring(2);
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92 | boolean matches = false;
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93 | for (String prefix : textPrefixes) { // check for match
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94 | if (strippedTextualLine.startsWith(prefix)) {
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95 | matches = true;
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96 | break;
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97 | }
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98 | }
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99 |
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100 | if (!matches) strippedTextualLine = null;
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101 |
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102 | } else if (line.startsWith("D ")) { // leave space - important
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103 |
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104 | currentDataLines.add(line);
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105 |
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106 | } else if (line.startsWith("F ")) { // leave space - important
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107 |
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108 | framelinkLine = line;
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109 |
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110 | } else if (line.startsWith("P ")) {
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111 | positionLine = line;
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112 | }
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113 |
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114 | }
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115 |
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116 | // Add last item
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117 | if (strippedTextualLine != null) {
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118 | results.add(createResult(strippedTextualLine, framelinkLine, currentDataLines, positionLine));
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119 | }
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120 |
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121 | } finally {
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122 | if (reader != null) {
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123 | reader.close();
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124 | }
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125 | }
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126 |
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127 | return results;
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128 | }
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129 |
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130 |
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131 | private static TextItemSearchResult createResult(
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132 | String strippedTextualLine,
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133 | String framelinkLine,
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134 | LinkedList<String> dataLines,
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135 | String positionLine) {
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136 |
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137 | if (strippedTextualLine == null || dataLines == null || positionLine == null) {
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138 | System.err.println("FAILED TO READ ITEM IN EXPEDITEE FILE");
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139 | return null;
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140 | }
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141 |
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142 |
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143 | TextItemSearchResult result = new TextItemSearchResult();
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144 |
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145 | result.text = strippedTextualLine;
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146 | result.explink = (framelinkLine != null) ? framelinkLine.substring(2) : null; // not stripped
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147 | result.data = new LinkedList<String>();
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148 | for (String dataLine : dataLines) {
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149 | result.data.add(dataLine.substring(2)); // data lines not stripped
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150 | }
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151 |
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152 | // Parse position information
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153 | if (positionLine.length() <= 2) return null;
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154 | String tmp = positionLine.substring(2);
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155 | tmp = tmp.trim();
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156 | int yStrIndex = tmp.indexOf(' ');
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157 | if (yStrIndex == -1) return null;
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158 |
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159 | int x;
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160 | int y;
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161 |
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162 | try {
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163 | x = Integer.parseInt(tmp.substring(0, yStrIndex).trim());
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164 | y = Integer.parseInt(tmp.substring(yStrIndex).trim());
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165 | } catch (NumberFormatException e) {
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166 | e.printStackTrace();
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167 | return null;
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168 | }
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169 |
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170 | result.position = new Point(x, y);
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171 |
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172 | return result;
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173 |
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174 | }
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175 |
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176 | }
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