root / branches / v2_0_0_prep / applications / appgvSIG / src / com / iver / cit / gvsig / TableNumericFieldOperations.java @ 24759
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package com.iver.cit.gvsig; |
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import java.math.BigDecimal; |
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import java.util.BitSet; |
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import java.util.Iterator; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.mapcontext.rendering.legend.NullValue; |
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import org.opengis.feature.FeatureCollection; |
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import com.iver.andami.PluginServices; |
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import com.iver.andami.plugins.Extension; |
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import com.iver.andami.ui.mdiManager.IWindow; |
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import com.iver.cit.gvsig.project.documents.table.gui.Statistics; |
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import com.iver.cit.gvsig.project.documents.table.gui.Table; |
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/**
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* @author Fernando Gonz?lez Cort?s
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*/
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public class TableNumericFieldOperations extends Extension{ |
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/**
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* @see com.iver.andami.plugins.IExtension#initialize()
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*/
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public void initialize() { |
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registerIcons(); |
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} |
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private void registerIcons(){ |
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PluginServices.getIconTheme().registerDefault( |
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"table-statistics",
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this.getClass().getClassLoader().getResource("images/statistics.png") |
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); |
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} |
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/**
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* @see com.iver.andami.plugins.IExtension#execute(java.lang.String)
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*/
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public void execute(String actionCommand) { |
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v != null) { |
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if (v.getClass() == Table.class) {
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Table table = (Table) v; |
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doExecute(table); |
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} |
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} |
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} |
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/**
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* "execute" method acction
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* @param actionCommand
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* The acction command that executes this method
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* @param table
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* Table to operate
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*/
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protected void doExecute(Table table){ |
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int fieldIndex = table.getSelectedFieldIndices().nextSetBit(0); |
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int numRows=0; |
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FeatureStore fs=null;
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// try {
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fs = table.getModel().getModel(); |
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// } catch (ReadException e) {
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// e.printStackTrace();
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// }
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FeatureCollection fCollection = (FeatureCollection)fs.getSelection(); |
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FeatureCollection fCollec=null;
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BigDecimal suma = new BigDecimal(0); |
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BigDecimal min = new BigDecimal(Double.MAX_VALUE); |
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BigDecimal max = new BigDecimal(-Double.MAX_VALUE); |
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Iterator iterator=null; |
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if (!fCollection.isEmpty()){
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iterator=fCollection.iterator(); |
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while (iterator.hasNext()) {
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Feature feature = (Feature) iterator.next(); |
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if (feature.get(fieldIndex) instanceof NullValue){ |
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continue;
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} |
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Number number=(Number)feature.get(fieldIndex); |
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double d=number.doubleValue();
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numRows++; |
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suma = suma.add(new BigDecimal(d)); |
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if (d < min.doubleValue()) {
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min = new BigDecimal(d); |
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} |
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if (d > max.doubleValue()) {
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max = new BigDecimal(d); |
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} |
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} |
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}else{
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try {
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fCollec = (FeatureCollection)fs.getDataCollection(new String[]{((FeatureAttributeDescriptor)fs.getDefaultFeatureType().get(fieldIndex)).getName()},null,null); |
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} catch (ReadException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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iterator=fCollec.iterator(); |
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while (iterator.hasNext()) {
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Feature feature = (Feature) iterator.next(); |
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if (feature.get(fieldIndex) instanceof NullValue){ |
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continue;
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} |
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Number number=(Number)feature.get(fieldIndex); |
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double d=number.doubleValue();
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numRows++; |
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suma = suma.add(new BigDecimal(d)); |
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if (d < min.doubleValue()) {
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min = new BigDecimal(d); |
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} |
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if (d > max.doubleValue()) {
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max = new BigDecimal(d); |
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} |
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} |
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} |
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Statistics st = new Statistics();
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BigDecimal media = new BigDecimal(0); |
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BigDecimal varianza = new BigDecimal(0); |
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double desviacion = 0; |
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if (numRows==0) { |
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suma = new BigDecimal(0); |
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min = new BigDecimal(0); |
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max = new BigDecimal(0); |
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}else {
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media = suma.divide(new BigDecimal(numRows), BigDecimal.ROUND_HALF_DOWN); |
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varianza = new BigDecimal(0); |
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if (!fCollection.isEmpty()){
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iterator=fCollection.iterator(); |
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}else{
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iterator=fCollec.iterator(); |
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} |
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while (iterator.hasNext()) {
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Feature feature = (Feature) iterator.next(); |
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if (feature.get(fieldIndex) instanceof NullValue){ |
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continue;
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} |
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Number number=(Number)feature.get(fieldIndex); |
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double d=number.doubleValue();
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BigDecimal dif = new BigDecimal(d).subtract(media); |
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varianza = dif.multiply(dif).add(varianza); |
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} |
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varianza = varianza.divide(new BigDecimal(numRows), BigDecimal.ROUND_HALF_DOWN); |
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desviacion = Math.sqrt(varianza.doubleValue());
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} |
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st.setStatistics(media.doubleValue(), max.doubleValue(), min.doubleValue(), varianza.doubleValue(), desviacion, numRows, new BigDecimal(max.doubleValue()).subtract(min).doubleValue(), suma.doubleValue()); |
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PluginServices.getMDIManager().addWindow(st); |
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// }else{
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//
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// }
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// BitSet selectedRows = (BitSet)ds.getSelection().clone();
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// try {
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// int rc = (int) ds.getRowCount();
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// //Si no hay selecci?n se usan todos los registros
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// if (selectedRows.cardinality() == 0){
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// selectedRows.set(0, rc);
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// }else{
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// rc = selectedRows.cardinality();
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// }
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// BigDecimal suma = new BigDecimal(0);
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// BigDecimal min = new BigDecimal(Double.MAX_VALUE);
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// BigDecimal max = new BigDecimal(-Double.MAX_VALUE);
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// for(int i=selectedRows.nextSetBit(0); i>=0; i=selectedRows.nextSetBit(i+1)) {
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// if (fs.getFieldValue(i, fieldIndex) instanceof NullValue)
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// continue;
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// numRows++;
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// double d = ((NumericValue) ds.getFieldValue(i, fieldIndex)).doubleValue();
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// suma = suma.add(new BigDecimal(d));
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// if (d < min.doubleValue()) min = new BigDecimal(d);
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// if (d > max.doubleValue()) max = new BigDecimal(d);
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// }
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// Statistics st = new Statistics();
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// BigDecimal media = new BigDecimal(0);
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// BigDecimal varianza = new BigDecimal(0);
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// double desviacion = 0;
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// if (numRows==0) {
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// suma = new BigDecimal(0);
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// min = new BigDecimal(0);
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// max = new BigDecimal(0);
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// }else {
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// media = suma.divide(new BigDecimal(numRows), BigDecimal.ROUND_HALF_DOWN);
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// varianza = new BigDecimal(0);
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// for(int i=selectedRows.nextSetBit(0); i>=0; i=selectedRows.nextSetBit(i+1)) {
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// if (ds.getFieldValue(i, fieldIndex) instanceof NullValue)
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// continue;
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// double d = ((NumericValue) ds.getFieldValue(i, fieldIndex)).doubleValue();
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// BigDecimal dif = new BigDecimal(d).subtract(media);
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// varianza = dif.multiply(dif).add(varianza);
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// }
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// varianza = varianza.divide(new BigDecimal(numRows), BigDecimal.ROUND_HALF_DOWN);
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// desviacion = Math.sqrt(varianza.doubleValue());
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// }
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//
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// st.setStatistics(media.doubleValue(), max.doubleValue(), min.doubleValue(), varianza.doubleValue(), desviacion, numRows, new BigDecimal(max.doubleValue()).subtract(min).doubleValue(), suma.doubleValue());
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// PluginServices.getMDIManager().addWindow(st);
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//
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// } catch (ReadDriverException e) {
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// NotificationManager.addError("No se pudo acceder a los datos", e);
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// }
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} |
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/**
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* @see com.iver.andami.plugins.IExtension#isEnabled()
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*/
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public boolean isEnabled() { |
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v == null) { |
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return false; |
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} |
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if (v instanceof Table) { |
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Table table = (Table) v; |
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return doIsEnabled(table);
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} |
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return false; |
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} |
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protected boolean doIsEnabled(Table table){ |
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BitSet indices = table.getSelectedFieldIndices();
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// System.out.println("TableNumericFieldOperations.isEnabled: Tabla: " + table.getModel().getModelo().getRecordset().getName() );
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if (indices.cardinality() == 1){ |
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// try {
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int index=indices.nextSetBit(0); |
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if (table.getModel().getModel().getDefaultFeatureType().size()<index+1) { |
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return false; |
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} |
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String type = ((FeatureAttributeDescriptor)table.getModel().getModel().getDefaultFeatureType().get(index)).getDataType();
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if ((type.equals(FeatureAttributeDescriptor.TYPE_LONG)) ||
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(type.equals(FeatureAttributeDescriptor.TYPE_DOUBLE)) || |
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(type.equals(FeatureAttributeDescriptor.TYPE_FLOAT)) || |
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(type.equals(FeatureAttributeDescriptor.TYPE_INT))){
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return true; |
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} |
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// } catch (ReadException e) {
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// return false;
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// }
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} |
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return false; |
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} |
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/**
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* @see com.iver.andami.plugins.IExtension#isVisible()
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*/
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public boolean isVisible() { |
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v == null) { |
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return false; |
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} |
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if (v instanceof Table) { |
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return true; |
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} |
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return false; |
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} |
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} |