root / branches / v2_0_0_prep / extensions / org.gvsig.app.document.table.app / org.gvsig.app.document.table.app.mainplugin / src / main / java / org / gvsig / app / extension / FiltroExtension.java @ 38564
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1 | 36443 | cordinyana | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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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 | * as published by the Free Software Foundation; either version 2
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9 | * 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 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | package org.gvsig.app.extension; |
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23 | |||
24 | import java.awt.Component; |
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25 | |||
26 | import javax.swing.JOptionPane; |
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27 | |||
28 | 38564 | jjdelcerro | import org.gvsig.andami.IconThemeHelper; |
29 | 36443 | cordinyana | import org.gvsig.andami.PluginServices; |
30 | import org.gvsig.andami.messages.NotificationManager; |
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31 | import org.gvsig.andami.plugins.Extension; |
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32 | import org.gvsig.andami.ui.mdiManager.IWindow; |
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33 | import org.gvsig.app.gui.filter.ExpressionListener; |
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34 | import org.gvsig.app.gui.filter.FilterDialog; |
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35 | import org.gvsig.app.project.documents.table.gui.FeatureTableDocumentPanel; |
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36 | import org.gvsig.fmap.dal.DALLocator; |
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37 | import org.gvsig.fmap.dal.DataManager; |
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38 | import org.gvsig.fmap.dal.exception.DataException; |
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39 | import org.gvsig.fmap.dal.feature.FeatureQuery; |
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40 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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41 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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42 | import org.gvsig.utils.exceptionHandling.ExceptionListener; |
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43 | |||
44 | /**
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45 | * Extensi?n que abre un di?logo para poder hacer un filtro de una capa o tabla.
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46 | *
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47 | * @author Vicente Caballero Navarro
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48 | */
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49 | public class FiltroExtension extends Extension implements ExpressionListener { |
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50 | |||
51 | protected FeatureStore featureStore = null; |
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52 | protected FeatureTableDocumentPanel table;
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53 | private String filterTitle; |
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54 | |||
55 | public void initialize() { |
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56 | registerIcons(); |
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57 | } |
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58 | |||
59 | private void registerIcons() { |
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60 | 38564 | jjdelcerro | IconThemeHelper.registerIcon("action", "table-filter", this); |
61 | 36443 | cordinyana | } |
62 | |||
63 | public void execute(String actionCommand) { |
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64 | 38564 | jjdelcerro | if ("table-filter".equals(actionCommand)) { |
65 | 36443 | cordinyana | IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
66 | |||
67 | if (v instanceof FeatureTableDocumentPanel) { |
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68 | table = (FeatureTableDocumentPanel) v; |
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69 | |||
70 | featureStore = table.getModel().getStore(); |
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71 | filterTitle = table.getModel().getName(); |
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72 | table.getModel().setModified(true);
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73 | } |
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74 | |||
75 | doExecute(); |
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76 | } |
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77 | } |
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78 | |||
79 | protected void doExecute() { |
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80 | FilterDialog dlg = new FilterDialog(filterTitle);
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81 | dlg.addExpressionListener(this);
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82 | dlg.addExceptionListener(new ExceptionListener() { |
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83 | |||
84 | public void exceptionThrown(Throwable t) { |
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85 | NotificationManager.addError(t.getMessage(), t); |
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86 | } |
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87 | }); |
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88 | dlg.setModel(featureStore); |
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89 | PluginServices.getMDIManager().addWindow(dlg); |
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90 | } |
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91 | |||
92 | public boolean isEnabled() { |
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93 | return isVisible();
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94 | } |
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95 | |||
96 | public boolean isVisible() { |
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97 | IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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98 | return (v instanceof FeatureTableDocumentPanel); |
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99 | } |
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100 | |||
101 | // By Pablo: if no filter expression -> no element selected
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102 | public void newSet(String expression) throws DataException { |
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103 | if (!this.filterExpressionFromWhereIsEmpty(expression)) { |
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104 | FeatureSet set = null;
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105 | try {
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106 | set = doSet(expression); |
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107 | |||
108 | if (set == null) { |
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109 | return;
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110 | } |
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111 | featureStore.setSelection(set); |
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112 | |||
113 | } catch (Exception e) { |
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114 | JOptionPane.showMessageDialog(
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115 | (Component) PluginServices.getMainFrame(),
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116 | "Asegurate de que la consulta es correcta.");
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117 | } finally {
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118 | if (set != null) { |
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119 | set.dispose(); |
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120 | } |
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121 | } |
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122 | } else {
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123 | // By Pablo: if no expression -> no element selected
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124 | featureStore.getFeatureSelection().deselectAll(); |
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125 | } |
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126 | } |
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127 | |||
128 | private FeatureSet doSet(String expression) throws DataException { |
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129 | FeatureQuery query = featureStore.createFeatureQuery(); |
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130 | DataManager manager = DALLocator.getDataManager(); |
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131 | query.setFilter(manager.createExpresion(expression)); |
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132 | return featureStore.getFeatureSet(query);
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133 | } |
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134 | |||
135 | public void addToSet(String expression) throws DataException { |
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136 | // By Pablo: if no filter expression -> don't add more elements to set
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137 | if (!this.filterExpressionFromWhereIsEmpty(expression)) { |
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138 | FeatureSet set = null;
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139 | try {
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140 | set = doSet(expression); |
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141 | |||
142 | if (set == null) { |
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143 | return;
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144 | } |
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145 | featureStore.getFeatureSelection().select(set); |
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146 | } finally {
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147 | if (set != null) { |
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148 | set.dispose(); |
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149 | } |
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150 | } |
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151 | } |
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152 | } |
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153 | |||
154 | public void fromSet(String expression) throws DataException { |
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155 | // By Pablo: if no filter expression -> no element selected
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156 | try {
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157 | if (!this.filterExpressionFromWhereIsEmpty(expression)) { |
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158 | NotificationManager.showMessageInfo("Falta por implementar",
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159 | null);
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160 | } else {
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161 | // By Pablo: if no expression -> no element selected
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162 | featureStore.getFeatureSelection().deselectAll(); |
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163 | } |
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164 | } catch (DataException e) {
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165 | NotificationManager.addError(e); |
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166 | } |
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167 | |||
168 | } |
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169 | |||
170 | /**
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171 | * Returns true if the WHERE subconsultation of the filterExpression is
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172 | * empty ("")
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173 | *
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174 | * @author Pablo Piqueras Bartolom? (p_queras@hotmail.com)
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175 | * @param expression
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176 | * An string
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177 | * @return A boolean value
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178 | */
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179 | private boolean filterExpressionFromWhereIsEmpty(String expression) { |
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180 | String subExpression = expression.trim();
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181 | int pos;
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182 | |||
183 | // Remove last ';' if exists
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184 | if (subExpression.charAt(subExpression.length() - 1) == ';') { |
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185 | subExpression = |
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186 | subExpression.substring(0, subExpression.length() - 1).trim(); |
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187 | } |
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188 | |||
189 | // If there is no 'where' clause
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190 | if ((pos = subExpression.indexOf("where")) == -1) { |
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191 | return false; |
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192 | } |
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193 | |||
194 | // If there is no subexpression in the WHERE clause -> true
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195 | subExpression = |
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196 | subExpression.substring(pos + 5, subExpression.length()).trim(); // + |
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197 | // 5
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198 | // is
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199 | // the
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200 | // length
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201 | // of
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202 | // 'where'
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203 | if (subExpression.length() == 0) { |
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204 | return true; |
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205 | } else {
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206 | return false; |
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207 | } |
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208 | } |
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209 | } |