gvsig-geoprocess / org.gvsig.sextante / trunk / org.gvsig.sextante.app / org.gvsig.sextante.app.algorithm / org.gvsig.sextante.app.algorithm.merge / src / main / java / org / gvsig / sextante / app / algorithm / merge / MergeAlgorithm.java @ 41
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/*
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* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2010 Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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*/
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package org.gvsig.sextante.app.algorithm.merge; |
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import java.util.ArrayList; |
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import org.gvsig.fmap.dal.exception.DataException; |
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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.sextante.app.algorithm.base.core.GeometryOperation; |
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import org.gvsig.sextante.app.extension.core.gvGeoAlgorithm; |
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import org.gvsig.sextante.app.extension.core.gvVectorLayer; |
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import es.unex.sextante.additionalInfo.AdditionalInfoMultipleInput; |
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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.outputs.OutputVectorLayer; |
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/**
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* Merge algorithm
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* @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
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*/
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public class MergeAlgorithm extends gvGeoAlgorithm { |
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public static final String RESULT = "RESULT"; |
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public static final String LAYERS = "LAYERS"; |
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public static final String FIELDLAYER = "LAYER"; |
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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(Sextante.getText("Merge"));
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setGroup(Sextante.getText("gvSIG_Algorithms"));
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setGeneratesUserDefinedRasterOutput(false);
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try {
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m_Parameters.addMultipleInput(LAYERS, |
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Sextante.getText("Input_layers"),
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AdditionalInfoMultipleInput.DATA_TYPE_VECTOR_ANY, |
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true);
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m_Parameters.addInputVectorLayer(FIELDLAYER, |
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Sextante.getText( "Fields"),
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IVectorLayer.SHAPE_TYPE_WRONG, |
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true);
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addOutputVectorLayer(RESULT, |
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Sextante.getText("Merge"),
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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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setExternalParameters(new MergeParametersPanel());
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} |
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@SuppressWarnings("unchecked") |
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public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
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IVectorLayer layer = m_Parameters.getParameterValueAsVectorLayer(FIELDLAYER); |
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ArrayList<IVectorLayer> layers = m_Parameters.getParameterValueAsArrayList(LAYERS);
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FeatureStore storeLayer = null;
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if(layer instanceof gvVectorLayer) |
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storeLayer = ((gvVectorLayer)layer).getFeatureStore(); |
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else
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return false; |
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try {
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//Gets the list of FeatureStore
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ArrayList<FeatureStore> featureStoreList = new ArrayList<FeatureStore>(); |
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for (int i = 0; i < layers.size(); i++) { |
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IVectorLayer lyr = layers.get(i); |
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if(lyr instanceof gvVectorLayer && layer.getShapeType() == lyr.getShapeType()) |
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featureStoreList.add(((gvVectorLayer)lyr).getFeatureStore()); |
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else
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return false; |
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} |
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//Builds the output FeatureStore
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FeatureSet features = null;
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features = storeLayer.getFeatureSet(); |
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FeatureType featureType = features.getDefaultFeatureType(); |
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FeatureStore outFeatStore = buildOutPutStore(featureType, layer.getShapeType(), Sextante.getText("Merge"), RESULT);
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//Calls the operation
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GeometryOperation operation = new MergeOperation(layers, layer);
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operation.computesGeometryOperationInAList(featureStoreList, outFeatStore, attrNames, false, true); |
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} catch (DataException e) {
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Sextante.addErrorToLog(e); |
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return false; |
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} |
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return true; |
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} |
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} |