root / branches / v2_0_0_prep / applications / appgvSIG / src / org / gvsig / app / extension / TableNumericFieldOperations.java @ 30011
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package org.gvsig.app.extension; |
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import java.math.BigDecimal; |
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import org.gvsig.andami.PluginServices; |
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import org.gvsig.andami.messages.NotificationManager; |
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import org.gvsig.andami.plugins.Extension; |
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import org.gvsig.andami.ui.mdiManager.IWindow; |
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import org.gvsig.app.project.documents.table.gui.FeatureTableDocumentPanel; |
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import org.gvsig.app.project.documents.table.gui.Statistics; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.DisposableIterator; |
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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.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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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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private FeatureTableDocumentPanel table;
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/**
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* @see org.gvsig.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 org.gvsig.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() == FeatureTableDocumentPanel.class) {
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FeatureTableDocumentPanel table = (FeatureTableDocumentPanel) 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(FeatureTableDocumentPanel table){ |
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FeatureSet fCollection = null;
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FeatureSet fCollec = null;
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try{
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FeatureAttributeDescriptor fad=table.getTablePanel().getTable().getSelectedColumnsAttributeDescriptor()[0];
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int numRows=0; |
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FeatureStore fs=null;
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fs = table.getModel().getStore(); |
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fCollection = (FeatureSet) fs.getSelection(); |
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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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DisposableIterator iterator = null;
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if (!fCollection.isEmpty()){
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try {
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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(fad.getName()) == null) { |
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continue;
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} |
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Number number = (Number) feature.get(fad.getName()); |
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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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} finally {
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if (iterator != null) { |
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iterator.dispose(); |
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} |
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} |
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}else{
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try {
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FeatureQuery fq = fs.createFeatureQuery(); |
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fq.setAttributeNames(new String[]{fad.getName()}); |
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fCollec = fs.getFeatureSet(fq); |
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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(fad.getName()) instanceof NullValue) {
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if (feature.get(fad.getName()) == null) { |
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continue;
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} |
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Number number = (Number) feature.get(fad.getName()); |
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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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} catch (DataException e) {
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// TODO Auto-generated catch block
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NotificationManager.addError(e); |
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return;
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} finally {
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if (iterator != null) { |
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iterator.dispose(); |
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} |
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if (fCollec != null) { |
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fCollec.dispose(); |
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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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try {
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while (iterator.hasNext()) {
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Feature feature = (Feature) iterator.next(); |
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// if (feature.get(fad.getName()) instanceof NullValue) {
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if (feature.get(fad.getName()) == null) { |
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continue;
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} |
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Number number = (Number) feature.get(fad.getName()); |
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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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} finally {
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if (iterator != null) { |
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iterator.dispose(); |
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} |
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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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}catch (DataException e) {
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NotificationManager.addError(e); |
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} finally{
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if (fCollection != null){ |
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fCollection.dispose(); |
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} |
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} |
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// }else{
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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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// 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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// } 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 org.gvsig.andami.plugins.IExtension#isEnabled()
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*/
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public boolean isEnabled() { |
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return doIsEnabled(table);
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} |
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protected boolean doIsEnabled(FeatureTableDocumentPanel table){ |
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// FIXME
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FeatureAttributeDescriptor[] fads=null; |
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try {
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fads = table.getTablePanel().getTable().getSelectedColumnsAttributeDescriptor(); |
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} catch (DataException e) {
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e.printStackTrace(); |
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} |
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if (fads.length == 1){ |
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// int index=indices.nextSetBit(0);
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// if (table.getModel().getStore().getDefaultFeatureType().size()<index+1) {
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// return false;
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// }
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int type = fads[0].getDataType(); |
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if ((type==DataTypes.LONG) ||
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(type== DataTypes.DOUBLE) || |
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(type==DataTypes.FLOAT) || |
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(type==DataTypes.INT)){
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return true; |
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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 org.gvsig.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 && v instanceof FeatureTableDocumentPanel) { |
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table=(FeatureTableDocumentPanel)v; |
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return true; |
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} |
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return false; |
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} |
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} |