svn-gvsig-desktop / trunk / applications / appgvSIG / src / com / iver / cit / gvsig / TableNumericFieldOperations.java @ 3718
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1 | 2241 | fernando | package com.iver.cit.gvsig; |
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2 | |||
3 | 2266 | fernando | import java.math.BigDecimal; |
4 | 2241 | fernando | import java.sql.Types; |
5 | import java.util.BitSet; |
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6 | |||
7 | import com.hardcode.gdbms.engine.data.driver.DriverException; |
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8 | import com.hardcode.gdbms.engine.values.NumericValue; |
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9 | import com.iver.andami.PluginServices; |
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10 | import com.iver.andami.messages.NotificationManager; |
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11 | import com.iver.andami.plugins.Extension; |
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12 | import com.iver.andami.ui.mdiManager.View; |
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13 | import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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14 | import com.iver.cit.gvsig.gui.Table; |
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15 | import com.iver.cit.gvsig.gui.tables.Statistics; |
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16 | |||
17 | /**
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18 | * @author Fernando Gonz?lez Cort?s
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19 | */
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20 | public class TableNumericFieldOperations implements Extension{ |
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21 | |||
22 | /**
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23 | * @see com.iver.andami.plugins.Extension#inicializar()
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24 | */
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25 | public void inicializar() { |
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26 | } |
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27 | |||
28 | /**
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29 | * @see com.iver.andami.plugins.Extension#execute(java.lang.String)
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30 | */
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31 | public void execute(String actionCommand) { |
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32 | View v = PluginServices.getMDIManager().getActiveView();
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33 | |||
34 | if (v != null) { |
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35 | if (v.getClass() == Table.class) {
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36 | |||
37 | Table t = (Table) v; |
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38 | |||
39 | int fieldIndex = t.getSelectedFieldIndices().nextSetBit(0); |
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40 | |||
41 | SelectableDataSource ds = t.getModel().getModelo(); |
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42 | BitSet selectedRows = ds.getSelection();
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43 | try {
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44 | int rc = (int) ds.getRowCount(); |
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45 | //Si no hay selecci?n se usan todos los registros
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46 | if (selectedRows.cardinality() == 0){ |
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47 | 2266 | fernando | selectedRows.set(0, rc);
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48 | 2241 | fernando | }else{
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49 | rc = selectedRows.cardinality(); |
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50 | } |
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51 | 2266 | fernando | BigDecimal suma = new BigDecimal(0); |
52 | BigDecimal min = new BigDecimal(Double.MAX_VALUE); |
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53 | BigDecimal max = new BigDecimal(Double.MIN_VALUE); |
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54 | 2241 | fernando | for(int i=selectedRows.nextSetBit(0); i>=0; i=selectedRows.nextSetBit(i+1)) { |
55 | double d = ((NumericValue) ds.getFieldValue(i, fieldIndex)).doubleValue();
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56 | 2266 | fernando | suma = suma.add(new BigDecimal(d)); |
57 | if (d < min.doubleValue()) min = new BigDecimal(d); |
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58 | if (d > max.doubleValue()) max = new BigDecimal(d); |
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59 | 2241 | fernando | } |
60 | 2266 | fernando | BigDecimal media = suma.divide(new BigDecimal(rc), BigDecimal.ROUND_HALF_DOWN); |
61 | BigDecimal varianza = new BigDecimal(0); |
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62 | 2241 | fernando | for(int i=selectedRows.nextSetBit(0); i>=0; i=selectedRows.nextSetBit(i+1)) { |
63 | double d = ((NumericValue) ds.getFieldValue(i, fieldIndex)).doubleValue();
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64 | 2266 | fernando | BigDecimal dif = new BigDecimal(d).subtract(media); |
65 | varianza = dif.multiply(dif).add(varianza); |
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66 | 2241 | fernando | } |
67 | 2266 | fernando | varianza = varianza.divide(new BigDecimal(rc), BigDecimal.ROUND_HALF_DOWN); |
68 | double desviacion = Math.sqrt(varianza.doubleValue()); |
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69 | 2241 | fernando | |
70 | Statistics st = new Statistics();
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71 | 2266 | fernando | st.setStatistics(media.doubleValue(), max.doubleValue(), min.doubleValue(), varianza.doubleValue(), desviacion, rc, new BigDecimal(max.doubleValue()).subtract(min).doubleValue(), suma.doubleValue()); |
72 | 2241 | fernando | PluginServices.getMDIManager().addView(st); |
73 | |||
74 | } catch (DriverException e) {
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75 | NotificationManager.addError("No se pudo acceder a los datos", e);
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76 | } |
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77 | } |
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78 | } |
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79 | } |
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80 | |||
81 | /**
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82 | * @see com.iver.andami.plugins.Extension#isEnabled()
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83 | */
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84 | public boolean isEnabled() { |
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85 | View v = PluginServices.getMDIManager().getActiveView();
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86 | |||
87 | if (v == null) { |
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88 | return false; |
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89 | } |
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90 | |||
91 | if (v.getClass() == Table.class) {
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92 | Table t = (Table) v; |
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93 | BitSet indices = t.getSelectedFieldIndices();
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94 | 2701 | fjp | System.out.println("TableNumericFieldOperations.isEnabled: Tabla: " + t.getModel().getModelo().getName() ); |
95 | 2241 | fernando | if (indices.cardinality() == 1){ |
96 | try {
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97 | int type = t.getModel().getModelo().getFieldType(indices.nextSetBit(0)); |
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98 | if ((type == Types.BIGINT) || |
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99 | (type == Types.DECIMAL) ||
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100 | (type == Types.DOUBLE) ||
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101 | (type == Types.FLOAT) ||
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102 | (type == Types.INTEGER) ||
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103 | (type == Types.SMALLINT) ||
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104 | (type == Types.TINYINT) ||
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105 | (type == Types.REAL) ||
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106 | (type == Types.NUMERIC)){
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107 | return true; |
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108 | } |
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109 | } catch (DriverException e) {
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110 | return false; |
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111 | } |
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112 | } |
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113 | } |
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114 | return false; |
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115 | } |
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116 | |||
117 | /**
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118 | * @see com.iver.andami.plugins.Extension#isVisible()
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119 | */
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120 | public boolean isVisible() { |
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121 | View v = PluginServices.getMDIManager().getActiveView();
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122 | |||
123 | if (v == null) { |
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124 | return false; |
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125 | } |
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126 | |||
127 | if (v.getClass() == Table.class) {
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128 | return true; |
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129 | } |
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130 | return false; |
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131 | } |
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132 | |||
133 | } |