1 | // |
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2 | // $Id: FilePanelDataModel2.java 1399 2010-09-08 20:02:33Z etienne_sf $ |
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3 | // |
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4 | // jupload - A file upload applet. |
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5 | // Copyright 2007 The JUpload Team |
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6 | // |
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7 | // Created: 2006-04-21 |
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8 | // Creator: etienne_sf |
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9 | // Last modified: $Date: 2010-09-08 17:02:33 -0300 (Qua, 08 Set 2010) $ |
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10 | // |
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11 | // This program is free software; you can redistribute it and/or modify it under |
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12 | // the terms of the GNU General Public License as published by the Free Software |
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13 | // Foundation; either version 2 of the License, or (at your option) any later |
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14 | // version. This program is distributed in the hope that it will be useful, but |
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15 | // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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16 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
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17 | // details. You should have received a copy of the GNU General Public License |
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18 | // along with this program; if not, write to the Free Software Foundation, Inc., |
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19 | // 675 Mass Ave, Cambridge, MA 02139, USA. |
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20 | |
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21 | package wjhk.jupload2.gui.filepanel; |
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22 | |
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23 | import java.io.File; |
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24 | import java.util.Collections; |
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25 | import java.util.Date; |
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26 | import java.util.Iterator; |
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27 | import java.util.Vector; |
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28 | |
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29 | import javax.swing.table.AbstractTableModel; |
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30 | |
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31 | import wjhk.jupload2.exception.JUploadExceptionStopAddingFiles; |
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32 | import wjhk.jupload2.filedata.FileData; |
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33 | import wjhk.jupload2.policies.UploadPolicy; |
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34 | |
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35 | /** |
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36 | * This class replaces FilePanelDataModel. The data for each row is now |
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37 | * contained in an instance of FileData (or one of its subclasses, like |
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38 | * {@link wjhk.jupload2.filedata.PictureFileData}). This allow easy add of new |
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39 | * functionalites, during upload, by adding attributes or methods to these |
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40 | * classes, or create new ones. <BR> |
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41 | * Some ides of improvements : |
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42 | * <UL> |
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43 | * <LI>Compression of picture before Upload (see |
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44 | * {@link wjhk.jupload2.filedata.PictureFileData}) |
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45 | * <LI>Could be XML validation before sending to the server |
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46 | * <LI>Up to your imagination... |
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47 | * </UL> |
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48 | */ |
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49 | class FilePanelDataModel2 extends AbstractTableModel { |
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50 | |
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51 | /** A generated serialVersionUID, to avoid warning during compilation */ |
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52 | private static final long serialVersionUID = 1473262424494858913L; |
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53 | |
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54 | /** |
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55 | * The default colum indices of the columns, as displayed by the applet. |
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56 | * Index of the column "Filename" |
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57 | */ |
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58 | public final static int COLINDEX_NAME = 0; |
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59 | |
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60 | /** |
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61 | * The default colum indices of the columns, as displayed by the applet. |
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62 | * Index of the column "Filename" |
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63 | */ |
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64 | public final static int COLINDEX_SIZE = 1; |
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65 | |
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66 | /** |
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67 | * The default colum indices of the columns, as displayed by the applet. |
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68 | * Index of the column "Filesize" |
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69 | */ |
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70 | public final static int COLINDEX_DIRECTORY = 2; |
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71 | |
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72 | /** |
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73 | * The default colum indices of the columns, as displayed by the applet. |
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74 | * Index of the column "Last modified" |
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75 | */ |
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76 | public final static int COLINDEX_MODIFIED = 3; |
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77 | |
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78 | /** |
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79 | * The uploadPolicy contains all current parameter, including the |
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80 | * FileDataParam |
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81 | */ |
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82 | private UploadPolicy uploadPolicy = null; |
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83 | |
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84 | /** |
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85 | * The column names, as displayed on the applet. They are not real final |
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86 | * values, as they are translated: we need to have an uploadPolicy for this |
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87 | * translation, and the uploadPolicy is 'given' to the constructor. |
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88 | */ |
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89 | private String COL_NAME = null; |
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90 | |
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91 | private String COL_SIZE = null; |
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92 | |
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93 | private String COL_DIRECTORY = null; |
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94 | |
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95 | private String COL_MODIFIED = null; |
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96 | |
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97 | protected String[] columnNames = null; |
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98 | |
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99 | /** |
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100 | * This array indicates, for each column, the percentage of the available |
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101 | * width it should use. It's initialized in the constructor of this class. |
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102 | * |
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103 | * @see #getColumnSize(int) |
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104 | */ |
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105 | protected int[] columnSizePercentage = null; |
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106 | |
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107 | protected Class<?> columnClasses[] = null; |
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108 | |
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109 | /** |
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110 | * This Vector contains all FileData. |
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111 | */ |
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112 | private Vector<FileData> rows = new Vector<FileData>(); |
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113 | |
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114 | /** |
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115 | * @param uploadPolicy |
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116 | */ |
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117 | public FilePanelDataModel2(UploadPolicy uploadPolicy) { |
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118 | // Property initialization is done ... for each property. Nothing to do |
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119 | // here. |
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120 | super(); |
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121 | // |
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122 | this.uploadPolicy = uploadPolicy; |
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123 | |
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124 | // Initialization for column name, type and size. |
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125 | this.COL_NAME = uploadPolicy.getLocalizedString("colName"); |
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126 | this.COL_SIZE = uploadPolicy.getLocalizedString("colSize"); |
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127 | this.COL_DIRECTORY = uploadPolicy.getLocalizedString("colDirectory"); |
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128 | this.COL_MODIFIED = uploadPolicy.getLocalizedString("colModified"); |
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129 | |
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130 | this.columnNames = new String[] { |
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131 | this.COL_NAME, this.COL_SIZE, this.COL_DIRECTORY, |
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132 | this.COL_MODIFIED |
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133 | }; |
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134 | |
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135 | // Initial size (before percentage) was: 150, 75, 199, 130, 75 |
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136 | // |
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137 | this.columnSizePercentage = new int[] { |
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138 | 30, 13, 37, 20 |
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139 | }; |
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140 | // Check that the sum of the previous values is actually 100% |
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141 | int total = 0; |
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142 | for (int i = 0; i < this.columnSizePercentage.length; i += 1) { |
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143 | total += this.columnSizePercentage[i]; |
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144 | } |
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145 | if (total != 100) { |
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146 | throw new java.lang.AssertionError("Total sum of '" |
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147 | + this.getClass().getName() |
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148 | + ".columnSizePercentage' should be 100% (but was " + total |
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149 | + ")"); |
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150 | } |
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151 | |
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152 | this.columnClasses = new Class[] { |
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153 | String.class, Long.class, String.class, Date.class, |
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154 | Boolean.class |
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155 | }; |
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156 | } |
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157 | |
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158 | /** |
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159 | * Does this table contain this file ? |
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160 | * |
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161 | * @param file : the file that could be contained... |
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162 | * @return true if the table contains this file. |
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163 | */ |
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164 | public boolean contains(File file) { |
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165 | boolean found = false; |
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166 | |
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167 | synchronized (this.rows) { |
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168 | Iterator<FileData> i = this.rows.iterator(); |
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169 | while (i.hasNext()) { |
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170 | if (file.equals(i.next().getFile())) { |
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171 | found = true; |
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172 | break; |
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173 | } |
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174 | } |
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175 | }// synchronized |
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176 | |
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177 | return found; |
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178 | } |
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179 | |
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180 | /** |
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181 | * Add a file to the panel (at the end of the list) |
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182 | * |
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183 | * @param file |
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184 | * @param root |
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185 | * @throws JUploadExceptionStopAddingFiles |
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186 | */ |
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187 | public void addFile(File file, File root) |
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188 | throws JUploadExceptionStopAddingFiles { |
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189 | synchronized (this.rows) { |
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190 | if (contains(file)) { |
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191 | this.uploadPolicy.displayWarn("File " + file.getName() |
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192 | + " already exists"); |
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193 | } else { |
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194 | // We first call the upload policy, to get : |
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195 | // - The correct fileData instance (for instance the |
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196 | // PictureUploadPolicy returns a PictureFileData) |
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197 | // - The reference to this newly FileData, or null if an error |
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198 | // occurs (for instance: invalid file content, according to the |
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199 | // current upload policy, or non allowed file extension). |
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200 | FileData df = this.uploadPolicy.createFileData(file, root); |
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201 | if (df != null) { |
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202 | // The file is Ok, let's add it. |
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203 | this.rows.add(df); |
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204 | fireTableDataChanged(); |
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205 | } |
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206 | } |
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207 | } |
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208 | } |
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209 | |
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210 | /** |
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211 | * Ask for the file contained at specified row number. |
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212 | * |
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213 | * @param row The row number |
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214 | * @return The return instance of File. |
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215 | */ |
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216 | public File getFileAt(int row) { |
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217 | synchronized (this.rows) { |
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218 | FileData fileData = this.rows.get(row); |
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219 | return (fileData == null) ? null : fileData.getFile(); |
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220 | } |
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221 | } |
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222 | |
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223 | /** |
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224 | * Ask for the file contained at specified row number. |
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225 | * |
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226 | * @param row The row number |
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227 | * @return The return instance of File. |
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228 | */ |
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229 | public FileData getFileDataAt(int row) { |
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230 | int size = -1; |
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231 | if (row >= 0) { |
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232 | try { |
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233 | synchronized (this.rows) { |
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234 | size = this.rows.size(); |
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235 | return (row < size) ? this.rows.get(row) : null; |
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236 | } |
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237 | } catch (ArrayIndexOutOfBoundsException e) { |
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238 | // Nothing to do. It seems that it can occurs when upload is |
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239 | // very |
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240 | // fast (for instance: small files to localhost). |
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241 | this.uploadPolicy.displayWarn(e.getClass().getName() |
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242 | + " in FilePanelDataModel2.getFileDataAt(" + row + ")"); |
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243 | } |
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244 | } |
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245 | return null; |
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246 | } |
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247 | |
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248 | /** |
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249 | * Remove a specified row. |
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250 | * |
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251 | * @param row The row to remove. |
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252 | */ |
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253 | public synchronized void removeRow(int row) { |
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254 | synchronized (this.rows) { |
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255 | this.rows.remove(row); |
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256 | fireTableDataChanged(); |
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257 | } |
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258 | } |
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259 | |
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260 | /** |
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261 | * Removes fileData from the current list. There should be only one. |
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262 | * |
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263 | * @param fileData |
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264 | */ |
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265 | public synchronized void removeRow(FileData fileData) { |
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266 | boolean found = false; |
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267 | |
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268 | synchronized (this.rows) { |
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269 | Iterator<FileData> i = this.rows.iterator(); |
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270 | FileData item; |
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271 | while (i.hasNext()) { |
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272 | item = i.next(); |
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273 | if (item.getFile().equals(fileData.getFile())) { |
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274 | this.rows.removeElement(item); |
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275 | found = true; |
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276 | break; |
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277 | } |
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278 | } |
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279 | }// synchronized(rows) |
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280 | |
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281 | if (found) { |
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282 | fireTableDataChanged(); |
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283 | } |
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284 | } |
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285 | |
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286 | /** @see javax.swing.table.TableModel#getColumnCount() */ |
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287 | public int getColumnCount() { |
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288 | return this.columnNames.length; |
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289 | } |
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290 | |
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291 | /** @see javax.swing.table.TableModel#getRowCount() */ |
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292 | public int getRowCount() { |
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293 | synchronized (this.rows) { |
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294 | return this.rows.size(); |
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295 | } |
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296 | } |
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297 | |
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298 | /** |
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299 | * Always return false here : no editable cell. |
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300 | * |
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301 | * @see javax.swing.table.TableModel#isCellEditable(int, int) |
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302 | */ |
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303 | @Override |
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304 | public boolean isCellEditable(int arg0, int arg1) { |
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305 | // No editable columns. |
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306 | return false; |
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307 | } |
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308 | |
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309 | /** |
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310 | * Sort the rows, according to one column. |
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311 | * |
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312 | * @param col The index of the column to sort |
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313 | * @param ascending true if ascending, false if descending. |
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314 | */ |
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315 | public void sortColumn(int col, boolean ascending) { |
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316 | synchronized (this.rows) { |
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317 | Collections.sort(this.rows, new ColumnComparator(col, ascending)); |
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318 | } |
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319 | fireTableDataChanged(); |
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320 | } |
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321 | |
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322 | /** |
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323 | * Return true if this column can be sorted. |
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324 | * |
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325 | * @param col The index of the column which can sortable or not. |
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326 | * @return true if the column can be sorted. false otherwise. |
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327 | */ |
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328 | public boolean isSortable(int col) { |
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329 | return (Boolean.class != getColumnClass(col)); |
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330 | } |
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331 | |
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332 | /** |
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333 | * @see javax.swing.table.TableModel#getColumnClass(int) |
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334 | */ |
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335 | @SuppressWarnings("unchecked") |
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336 | @Override |
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337 | public Class getColumnClass(int arg0) { |
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338 | return this.columnClasses[arg0]; |
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339 | } |
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340 | |
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341 | /** |
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342 | * @see javax.swing.table.TableModel#getValueAt(int, int) |
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343 | */ |
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344 | public Object getValueAt(int row, int col) { |
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345 | FileData fileData = getFileDataAt(row); |
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346 | if (fileData != null) { |
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347 | String colName = getColumnName(col); |
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348 | // Don't know if it will be useful, but the switch below allows the |
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349 | // column to be in any order. |
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350 | if (colName.equals(this.COL_NAME)) { |
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351 | return fileData.getFileName(); |
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352 | } else if (colName.equals(this.COL_SIZE)) { |
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353 | return Long.valueOf(fileData.getFileLength()); |
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354 | } else if (colName.equals(this.COL_DIRECTORY)) { |
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355 | return fileData.getDirectory(); |
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356 | } else if (colName.equals(this.COL_MODIFIED)) { |
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357 | return fileData.getLastModified(); |
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358 | } else { |
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359 | this.uploadPolicy.displayErr("Unknown column in " |
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360 | + this.getClass().getName() + ": " + colName); |
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361 | } |
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362 | } |
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363 | return null; |
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364 | } |
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365 | |
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366 | /** |
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367 | * This method doesn't do anything : no changeable values. |
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368 | * |
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369 | * @see javax.swing.table.TableModel#setValueAt(java.lang.Object, int, int) |
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370 | */ |
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371 | @Override |
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372 | public void setValueAt(Object arg0, int arg1, int arg2) { |
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373 | this.uploadPolicy.displayWarn(this.getClass().getName() |
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374 | + ".setValueAt: no action"); |
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375 | } |
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376 | |
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377 | /** |
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378 | * @see javax.swing.table.TableModel#getColumnName(int) |
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379 | */ |
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380 | @Override |
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381 | public String getColumnName(int arg0) { |
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382 | return this.columnNames[arg0]; |
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383 | } |
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384 | |
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385 | /** |
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386 | * Retrieves the default colum percentage size of a column, that is: its |
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387 | * percentage of the available width. |
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388 | * |
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389 | * @param col The index of the column to query. |
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390 | * @return the default size of the requested column. |
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391 | */ |
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392 | public int getColumnSizePercentage(int col) { |
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393 | return this.columnSizePercentage[col]; |
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394 | } |
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395 | } |
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