gvsig-geoprocess / org.gvsig.geoprocess / trunk / org.gvsig.geoprocess / org.gvsig.geoprocess.algorithm / org.gvsig.geoprocess.algorithm.groupby / src / main / java / org / gvsig / geoprocess / algorithm / groupby / GroupByAlgorithm.java @ 385
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2012 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.geoprocess.algorithm.groupby; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Set; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.EditableFeature; |
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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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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.Geometry.TYPES; |
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import org.gvsig.fmap.geom.aggregate.MultiCurve; |
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import org.gvsig.fmap.geom.aggregate.MultiPoint; |
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import org.gvsig.fmap.geom.aggregate.MultiPrimitive; |
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import org.gvsig.fmap.geom.aggregate.MultiSurface; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.primitive.Curve; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.primitive.Surface; |
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import org.gvsig.geoprocess.algorithm.base.util.GeometryUtil; |
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import org.gvsig.geoprocess.algorithm.base.util.JTSFacade; |
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import org.gvsig.geoprocess.lib.sextante.AbstractSextanteGeoProcess; |
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import org.gvsig.geoprocess.lib.sextante.dataObjects.FlyrVectIVectorLayer; |
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import org.gvsig.timesupport.Instant; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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import org.gvsig.tools.evaluator.Evaluator; |
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import es.unex.sextante.additionalInfo.AdditionalInfoNumericalValue; |
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import es.unex.sextante.core.Sextante; |
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import es.unex.sextante.dataObjects.IVectorLayer; |
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import es.unex.sextante.exceptions.GeoAlgorithmExecutionException; |
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import es.unex.sextante.exceptions.RepeatedParameterNameException; |
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import es.unex.sextante.exceptions.UnsupportedOutputChannelException; |
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import es.unex.sextante.gui.algorithm.GeoAlgorithmParametersPanel; |
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import es.unex.sextante.outputs.OutputVectorLayer; |
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/**
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* @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
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*/
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public class GroupByAlgorithm extends AbstractSextanteGeoProcess { |
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public static final String RESULT = "RESULT"; |
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public static final String LAYER = "LAYER"; |
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public static final String FIELD = "FIELD"; |
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public static final String FIELD_DATE = "FIELD_DATE"; |
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public static final String FIELD_LIST = "FIELD_LIST"; |
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public static final String LAYER_NAME = "LAYER_NAME"; |
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/**
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* <P>Possible values</P>
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* <UL>
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* <LI>-1: Without geometry</LI>
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* <LI>0: First geometry </LI>
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* <LI>1: Creates a multigeometry </LI>
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* <LI>2: Fusion of polygons </LI>
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* </UL>
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**/
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public static final String GEOM_OPTION = "GEOM_OPTION"; |
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public static final String FUNCTION_LIST = "FUNCTION_LIST"; |
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public static final String Summary[] = {"Min", "Max", "Sum", "Avg", "Last", "Any"}; |
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/*
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* (non-Javadoc)
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* @see es.unex.sextante.core.GeoAlgorithm#defineCharacteristics()
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*/
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public void defineCharacteristics(){ |
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setName(getTranslation("groupby"));
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setGroup(getTranslation("basic_vect_algorithms"));
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// setGeneratesUserDefinedRasterOutput(false);
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try {
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m_Parameters.addInputVectorLayer(LAYER, getTranslation("Input_layer"), IVectorLayer.SHAPE_TYPE_WRONG, true); |
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m_Parameters.addString(FIELD, getTranslation("Field"));
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m_Parameters.addString(FIELD_DATE, getTranslation("Field_date"));
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m_Parameters.addString(FIELD_LIST, getTranslation("Field_list"));
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m_Parameters.addString(FUNCTION_LIST, getTranslation("Function_list"));
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m_Parameters.addString(LAYER_NAME, getTranslation("Layer_name"));
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m_Parameters.addNumericalValue(GEOM_OPTION, getTranslation("Geom"), -1, AdditionalInfoNumericalValue.NUMERICAL_VALUE_INTEGER); |
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addOutputVectorLayer(RESULT, getTranslation("group_by"), OutputVectorLayer.SHAPE_TYPE_UNDEFINED);
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} catch (RepeatedParameterNameException e) {
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Sextante.addErrorToLog(e); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see es.unex.sextante.core.GeoAlgorithm#processAlgorithm()
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*/
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public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
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if(existsOutPutFile(GroupByAlgorithm.RESULT, 0)) { |
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throw new GeoAlgorithmExecutionException(getTranslation("file_exists")); |
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} |
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IVectorLayer layer = m_Parameters.getParameterValueAsVectorLayer(LAYER); |
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String groupByField = m_Parameters.getParameterValueAsString(FIELD);
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String fieldDate = m_Parameters.getParameterValueAsString(FIELD_DATE);
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String fieldsString = m_Parameters.getParameterValueAsString(FIELD_LIST);
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String functionsString = m_Parameters.getParameterValueAsString(FUNCTION_LIST);
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String layerName = m_Parameters.getParameterValueAsString(LAYER_NAME);
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int geomOption = m_Parameters.getParameterValueAsInt(GEOM_OPTION);
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int inputShapeType = layer.getShapeType();
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String[] funcList = functionsString.split(";"); |
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String[] fieldList = fieldsString.split(";"); |
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if(fieldList != null && funcList != null) { |
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if(fieldList.length != funcList.length) {
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Sextante.addErrorToLog("invalid_input_parameters");
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} |
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} |
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FeatureStore featureStore = null;
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if(layer instanceof FlyrVectIVectorLayer) |
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featureStore = ((FlyrVectIVectorLayer)layer).getFeatureStore(); |
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else
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return false; |
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try {
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FeatureType featureType = featureStore.getDefaultFeatureType(); |
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FeatureAttributeDescriptor desc = featureType.getAttributeDescriptor(groupByField); |
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String fieldNameGrouped = desc.getName();
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FeatureStore outFeatStore = buildOutPutStore(featureType, |
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layerName, |
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groupByField, |
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fieldList, |
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funcList, |
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geomOption, |
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inputShapeType); |
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Set<String> list = getGroupedValues(featureStore, groupByField); |
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int numberOfFeatures = list.size();
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if (getStatus() != null) { |
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getStatus().setRangeOfValues(0, numberOfFeatures);
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} |
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int cont = 0; |
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Iterator<String> it = list.iterator(); |
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while( it.hasNext() ) {
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if (getStatus() != null) { |
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getStatus().setCurValue(cont); |
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} |
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setProgress(cont, numberOfFeatures); |
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String groupedValue = it.next();
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loadFeature(featureStore, |
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outFeatStore, |
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fieldNameGrouped, |
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fieldDate, |
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groupedValue, |
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fieldList, |
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funcList, |
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geomOption); |
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cont++; |
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} |
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outFeatStore.finishEditing(); |
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} catch (DataException e) {
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Sextante.addErrorToLog(e); |
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} |
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return true; |
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} |
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private void loadFeature(FeatureStore inStore, |
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FeatureStore outStore, |
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String fieldNameGrouped,
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String fieldDate,
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String groupedValue,
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String[] fieldList, |
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String[] funcList, |
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int geomOption) throws DataException { |
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DataManager manager = DALLocator.getDataManager(); |
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EditableFeature feat = outStore.createNewFeature(outStore.getDefaultFeatureType(), true);
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FeatureQuery query = inStore.createFeatureQuery(); |
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Evaluator filter = manager.createExpresion(fieldNameGrouped + " = '" + groupedValue + "'"); |
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query.setFilter(filter); |
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FeatureSet featSet = inStore.getFeatureSet(query); |
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DisposableIterator it = featSet.iterator(); |
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List<Geometry> geomList = new ArrayList<Geometry>(); |
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Object[] values = null; |
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if(fieldList != null) |
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values = new Object[fieldList.length]; |
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int nFeaturesByGroup = 0; |
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Instant lastDate = null;
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while(it.hasNext()) {
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Feature feature = (Feature)it.next(); |
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if(fieldList != null) { |
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for (int i = 0; i < fieldList.length; i++) { |
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Object v = feature.get(fieldList[i]);
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//Class<?> c = inStore.getDefaultFeatureType().getAttributeDescriptor(funcList[i]).getClassOfValue();
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if(v instanceof Number) { |
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if(funcList[i].compareToIgnoreCase("Min") == 0) { |
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if(values[i] == null) |
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values[i] = Double.POSITIVE_INFINITY;
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values[i] = updateMinimum((Double)values[i], v);
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} |
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if(funcList[i].compareToIgnoreCase("Max") == 0) { |
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if(values[i] == null) |
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values[i] = Double.NEGATIVE_INFINITY;
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values[i] = updateMaximum((Double)values[i], v);
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} |
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if(funcList[i].compareToIgnoreCase("Sum") == 0 || funcList[i].compareToIgnoreCase("Average") == 0) { |
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if(values[i] == null) |
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values[i] = new Double(0D); |
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values[i] = sum((Double)values[i], v);
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} |
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} |
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if(funcList[i].compareToIgnoreCase("First") == 0) { |
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if(values[i] == null) |
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values[i] = v; |
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} |
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if(funcList[i].compareToIgnoreCase("Last") == 0 && fieldDate != null) { |
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if(lastDate == null || |
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values[i] == null ||
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lastDate.isAfter(feature.getInstant(fieldDate))) {
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lastDate = feature.getInstant(fieldDate); |
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values[i] = v; |
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} |
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} |
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} |
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} |
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if(geomOption >= 0) { |
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switch (geomOption) {
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case 0: //Adds only the first geometry |
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if(nFeaturesByGroup == 0) { //If is the first feature |
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Geometry g = feature.getDefaultGeometry(); |
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if(!(g instanceof MultiPrimitive)) { |
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List<Geometry> gList = new ArrayList<Geometry>(); |
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gList.add(g); |
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g = buildMultiGeometry(gList); |
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} |
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feat.set(outStore.getDefaultFeatureType().getDefaultGeometryAttributeName(), g); |
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} |
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break;
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case 1: //Multigeometry with all geometries |
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case 2: //Union among all geometries |
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geomList.add(feature.getDefaultGeometry().cloneGeometry()); |
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break;
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} |
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} |
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nFeaturesByGroup ++; |
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} |
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it.dispose(); |
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featSet.dispose(); |
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feat.set(fieldNameGrouped, groupedValue); |
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//Se asignan los campos calculados
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if(fieldList != null) { |
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for (int i = 0; i < values.length; i++) { |
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if(funcList[i].compareToIgnoreCase("Average") == 0) { |
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values[i] = ((Double)values[i]).doubleValue() / nFeaturesByGroup;
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} |
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feat.set(i + 1, values[i]);
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} |
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} |
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//Si hay que convertir a multigeometr?a
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if(geomOption == 1 && geomList.size() > 0) |
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feat.set(outStore.getDefaultFeatureType().getDefaultGeometryAttributeName(), buildMultiGeometry(geomList)); |
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if(geomOption == 2 && geomList.size() > 0) |
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feat.set(outStore.getDefaultFeatureType().getDefaultGeometryAttributeName(), computesUnion(geomList)); |
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outStore.update(feat); |
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} |
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/**
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* Builds a unique geometry with all geometries in the list
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* @param geomList
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* @return
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*/
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private Geometry buildMultiGeometry(List<Geometry> geomList) { |
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Geometry newGeom = null;
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for (int i = 0; i < geomList.size(); i++) { |
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if(i == 0) { |
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try {
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if(geomList.get(0).getType() == TYPES.POINT || geomList.get(0).getType() == TYPES.MULTIPOINT) |
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newGeom = (MultiPoint)geomManager.create(TYPES.MULTIPOINT, SUBTYPES.GEOM2D); |
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if(geomList.get(0).getType() == TYPES.CURVE || geomList.get(0).getType() == TYPES.MULTICURVE) |
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newGeom = (MultiCurve)geomManager.create(TYPES.MULTICURVE, SUBTYPES.GEOM2D); |
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if(geomList.get(0).getType() == TYPES.SURFACE || geomList.get(0).getType() == TYPES.MULTISURFACE) |
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newGeom = (MultiSurface)geomManager.create(TYPES.MULTISURFACE, SUBTYPES.GEOM2D); |
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} catch (CreateGeometryException e) {
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} |
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} |
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if(geomList.get(i) instanceof Surface) { |
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((MultiSurface)newGeom).addPrimitive((Surface)geomList.get(i)); |
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} |
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if(geomList.get(i) instanceof MultiSurface) { |
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int nPrimitives = ((MultiSurface)geomList.get(i)).getPrimitivesNumber();
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for (int iPrimitive = 0; iPrimitive < nPrimitives; iPrimitive++) { |
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((MultiSurface)newGeom).addPrimitive(((MultiSurface)geomList.get(i)).getSurfaceAt(iPrimitive)); |
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} |
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} |
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if(geomList.get(i) instanceof Curve) { |
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((MultiCurve)newGeom).addPrimitive((Curve)geomList.get(i)); |
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} |
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if(geomList.get(i) instanceof MultiCurve) { |
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int nPrimitives = ((MultiSurface)geomList.get(i)).getPrimitivesNumber();
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for (int iPrimitive = 0; iPrimitive < nPrimitives; iPrimitive++) { |
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((MultiCurve)newGeom).addPrimitive(((MultiCurve)geomList.get(i)).getCurveAt(iPrimitive)); |
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} |
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} |
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if(geomList.get(i) instanceof Point) { |
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((MultiPoint)newGeom).addPrimitive((Point)geomList.get(i));
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} |
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if(geomList.get(i) instanceof MultiPoint) { |
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int nPrimitives = ((MultiPoint)geomList.get(i)).getPrimitivesNumber();
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for (int iPrimitive = 0; iPrimitive < nPrimitives; iPrimitive++) { |
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((MultiPoint)newGeom).addPrimitive(((MultiPoint)geomList.get(i)).getPointAt(iPrimitive)); |
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} |
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} |
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} |
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return newGeom;
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} |
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|
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/**
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* Computes the union of gemetries in the list
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* @param listInput
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* @return
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*/
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private Geometry computesUnion(List<Geometry> listInput) { |
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List<com.vividsolutions.jts.geom.Geometry> listResult = new ArrayList<com.vividsolutions.jts.geom.Geometry>(); |
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for (int i = listInput.size() - 1; i >= 0; i--) { |
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listResult.add(GeometryUtil.geomToJTS(listInput.get(i))); |
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listInput.remove(i); |
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} |
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com.vividsolutions.jts.geom.Geometry newGeom = null;
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while(listResult.size() > 1) { |
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List<com.vividsolutions.jts.geom.Geometry> list = new ArrayList<com.vividsolutions.jts.geom.Geometry>(); |
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for (int i = 0; i < listResult.size(); i = i + 2) { |
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if(i == (listResult.size() - 1)) |
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list.add(listResult.get(i)); |
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else {
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newGeom = JTSFacade.union(listResult.get(i), listResult.get(i + 1));
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list.add(newGeom); |
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} |
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} |
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listResult = list; |
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} |
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return GeometryUtil.jtsToGeom(newGeom);
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} |
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private Double updateAny(Double min, Object value) { |
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if(value instanceof Double) |
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return (Double)value; |
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else if(value instanceof Integer) |
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return ((Integer)value).doubleValue(); |
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return min;
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} |
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private Double updateMinimum(Double min, Object value) { |
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if(value instanceof Double && ((Double)value).doubleValue() < min) |
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return (Double)value; |
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else if(value instanceof Integer && ((Integer)value).intValue() < min) |
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return ((Integer)value).doubleValue(); |
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return min;
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} |
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private Double updateMaximum(Double max, Object value) { |
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if(value instanceof Double && ((Double)value).doubleValue() > max) |
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return (Double)value; |
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else if(value instanceof Integer && ((Integer)value).intValue() > max) |
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return ((Integer)value).doubleValue(); |
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return max;
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} |
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|
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private Double sum(Double current, Object value) { |
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if(value instanceof Double) |
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return ((Double)value) + current; |
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else if(value instanceof Integer) |
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return ((Integer)value) + current; |
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return current;
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} |
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|
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/**
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* Gets the list of grouped values
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* @param featureStore
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* @param groupByField
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* @return
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* @throws DataException
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*/
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private Set<String> getGroupedValues(FeatureStore featureStore, String groupByField) throws DataException { |
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HashMap<String, String> valueGrouped = new HashMap<String, String>(); |
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FeatureSet featureSet = featureStore.getFeatureSet(); |
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DisposableIterator it = featureSet.iterator(); |
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while( it.hasNext() ) {
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Feature feature = (Feature)it.next(); |
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Object obj = feature.get(groupByField);
|
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String s = null; |
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if(obj instanceof String) |
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s = new String(((String)obj)); |
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else if(obj instanceof Double) |
| 431 |
s = String.valueOf((Double)obj); |
| 432 |
else if(obj instanceof Integer) |
| 433 |
s = String.valueOf((Integer)obj); |
| 434 |
else if(obj instanceof Float) |
| 435 |
s = String.valueOf((Float)obj); |
| 436 |
else if(obj instanceof Boolean) |
| 437 |
s = String.valueOf((Boolean)obj); |
| 438 |
else if(obj instanceof Long) |
| 439 |
s = String.valueOf((Long)obj); |
| 440 |
else if(obj instanceof Byte) |
| 441 |
s = String.valueOf((Byte)obj); |
| 442 |
else if(obj instanceof Date) |
| 443 |
s = ((Date)obj).toString();
|
| 444 |
if(valueGrouped.get(s) == null) { |
| 445 |
valueGrouped.put(s, s); |
| 446 |
} |
| 447 |
} |
| 448 |
it.dispose(); |
| 449 |
featureSet.dispose(); |
| 450 |
return valueGrouped.keySet();
|
| 451 |
} |
| 452 |
|
| 453 |
/**
|
| 454 |
* Builds the output FeatureStore
|
| 455 |
*
|
| 456 |
* @param featureType
|
| 457 |
* @return FeatureStore
|
| 458 |
*/
|
| 459 |
private FeatureStore buildOutPutStore(FeatureType featureType,
|
| 460 |
String sextanteLayerName,
|
| 461 |
String groupByField,
|
| 462 |
String[] fieldList, |
| 463 |
String[] funcList, |
| 464 |
int geomOption,
|
| 465 |
int inputShapeType) {
|
| 466 |
int len = fieldList != null ? fieldList.length + 2 : 2; |
| 467 |
|
| 468 |
Class<?>[] types = new Class[len]; |
| 469 |
attrNames = new String[len]; |
| 470 |
|
| 471 |
FeatureAttributeDescriptor desc = featureType.getAttributeDescriptor(groupByField); |
| 472 |
attrNames[0] = desc.getName();
|
| 473 |
types[0] = desc.getObjectClass();
|
| 474 |
|
| 475 |
if(fieldList != null) { |
| 476 |
for (int i = 1; i < attrNames.length - 1; i++) { |
| 477 |
desc = featureType.getAttributeDescriptor(fieldList[i - 1]);
|
| 478 |
attrNames[i] = desc.getName(); |
| 479 |
if(attrNames[i].length() >= 6) |
| 480 |
attrNames[i] = attrNames[i].substring(0, 5); |
| 481 |
attrNames[i] += "_" + funcList[i - 1]; |
| 482 |
types[i] = desc.getObjectClass(); |
| 483 |
} |
| 484 |
} |
| 485 |
|
| 486 |
attrNames[attrNames.length - 1] = featureType.getDefaultGeometryAttributeName();
|
| 487 |
types[types.length - 1] = featureType.getDefaultGeometryAttribute().getObjectClass();
|
| 488 |
|
| 489 |
try {
|
| 490 |
IVectorLayer output = getNewVectorLayer(RESULT, sextanteLayerName, |
| 491 |
inputShapeType, types, attrNames); |
| 492 |
return ((FlyrVectIVectorLayer) output).getFeatureStore();
|
| 493 |
} catch (UnsupportedOutputChannelException e) {
|
| 494 |
Sextante.addErrorToLog(e); |
| 495 |
} catch (GeoAlgorithmExecutionException e) {
|
| 496 |
Sextante.addErrorToLog(e); |
| 497 |
} |
| 498 |
return null; |
| 499 |
} |
| 500 |
|
| 501 |
/**
|
| 502 |
* Gets the list of fields index to add to the table.
|
| 503 |
* @param fieldsString
|
| 504 |
* @return
|
| 505 |
*/
|
| 506 |
private int[] getFieldList(String fieldsString) { |
| 507 |
String[] list = fieldsString.split(";"); |
| 508 |
int[] l = new int[list.length]; |
| 509 |
for (int i = 0; i < list.length; i++) { |
| 510 |
try {
|
| 511 |
l[i] = new Integer(list[i]); |
| 512 |
} catch (NumberFormatException e) { |
| 513 |
return null; |
| 514 |
} |
| 515 |
} |
| 516 |
return l;
|
| 517 |
} |
| 518 |
|
| 519 |
@Override
|
| 520 |
public Class<? extends GeoAlgorithmParametersPanel> getCustomParametersPanelClass() { |
| 521 |
return GroupByParametersPanel.class;
|
| 522 |
} |
| 523 |
|
| 524 |
} |