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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1 | 41 | nbrodin | /*
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2 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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3 | *
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4 | * Copyright (C) 2010 Generalitat Valenciana.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | */
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21 | 21 | nbrodin | package org.gvsig.sextante.app.algorithm.merge; |
22 | |||
23 | 41 | nbrodin | import java.util.ArrayList; |
24 | |||
25 | import org.gvsig.fmap.dal.exception.DataException; |
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26 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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27 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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28 | import org.gvsig.fmap.dal.feature.FeatureType; |
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29 | import org.gvsig.sextante.app.algorithm.base.core.GeometryOperation; |
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30 | import org.gvsig.sextante.app.extension.core.gvGeoAlgorithm; |
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31 | import org.gvsig.sextante.app.extension.core.gvVectorLayer; |
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32 | |||
33 | import es.unex.sextante.additionalInfo.AdditionalInfoMultipleInput; |
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34 | 21 | nbrodin | import es.unex.sextante.core.Sextante; |
35 | 41 | nbrodin | import es.unex.sextante.dataObjects.IVectorLayer; |
36 | 21 | nbrodin | import es.unex.sextante.exceptions.GeoAlgorithmExecutionException; |
37 | import es.unex.sextante.exceptions.RepeatedParameterNameException; |
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38 | 41 | nbrodin | import es.unex.sextante.outputs.OutputVectorLayer; |
39 | 21 | nbrodin | |
40 | 41 | nbrodin | /**
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41 | * Merge algorithm
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42 | * @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
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43 | */
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44 | public class MergeAlgorithm extends gvGeoAlgorithm { |
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45 | public static final String RESULT = "RESULT"; |
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46 | public static final String LAYERS = "LAYERS"; |
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47 | public static final String FIELDLAYER = "LAYER"; |
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48 | |||
49 | /*
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50 | * (non-Javadoc)
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51 | * @see es.unex.sextante.core.GeoAlgorithm#defineCharacteristics()
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52 | */
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53 | public void defineCharacteristics() { |
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54 | setName(Sextante.getText("Merge"));
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55 | setGroup(Sextante.getText("gvSIG_Algorithms"));
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56 | setGeneratesUserDefinedRasterOutput(false);
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57 | |||
58 | try {
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59 | m_Parameters.addMultipleInput(LAYERS, |
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60 | Sextante.getText("Input_layers"),
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61 | AdditionalInfoMultipleInput.DATA_TYPE_VECTOR_ANY, |
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62 | true);
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63 | m_Parameters.addInputVectorLayer(FIELDLAYER, |
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64 | Sextante.getText( "Fields"),
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65 | IVectorLayer.SHAPE_TYPE_WRONG, |
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66 | true);
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67 | addOutputVectorLayer(RESULT, |
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68 | Sextante.getText("Merge"),
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69 | OutputVectorLayer.SHAPE_TYPE_UNDEFINED); |
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70 | } catch (RepeatedParameterNameException e) {
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71 | Sextante.addErrorToLog(e); |
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72 | } |
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73 | setExternalParameters(new MergeParametersPanel());
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74 | } |
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75 | |||
76 | @SuppressWarnings("unchecked") |
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77 | public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
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78 | IVectorLayer layer = m_Parameters.getParameterValueAsVectorLayer(FIELDLAYER); |
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79 | ArrayList<IVectorLayer> layers = m_Parameters.getParameterValueAsArrayList(LAYERS);
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80 | |||
81 | FeatureStore storeLayer = null;
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82 | if(layer instanceof gvVectorLayer) |
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83 | storeLayer = ((gvVectorLayer)layer).getFeatureStore(); |
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84 | else
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85 | return false; |
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86 | |||
87 | try {
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88 | //Gets the list of FeatureStore
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89 | ArrayList<FeatureStore> featureStoreList = new ArrayList<FeatureStore>(); |
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90 | for (int i = 0; i < layers.size(); i++) { |
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91 | IVectorLayer lyr = layers.get(i); |
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92 | if(lyr instanceof gvVectorLayer && layer.getShapeType() == lyr.getShapeType()) |
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93 | featureStoreList.add(((gvVectorLayer)lyr).getFeatureStore()); |
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94 | else
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95 | return false; |
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96 | } |
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97 | |||
98 | //Builds the output FeatureStore
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99 | FeatureSet features = null;
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100 | features = storeLayer.getFeatureSet(); |
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101 | FeatureType featureType = features.getDefaultFeatureType(); |
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102 | FeatureStore outFeatStore = buildOutPutStore(featureType, layer.getShapeType(), Sextante.getText("Merge"), RESULT);
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103 | 21 | nbrodin | |
104 | 41 | nbrodin | //Calls the operation
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105 | GeometryOperation operation = new MergeOperation(layers, layer);
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106 | operation.computesGeometryOperationInAList(featureStoreList, outFeatStore, attrNames, false, true); |
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107 | } catch (DataException e) {
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108 | Sextante.addErrorToLog(e); |
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109 | return false; |
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110 | } |
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111 | |||
112 | 21 | nbrodin | return true; |
113 | } |
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114 | |||
115 | } |