svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.operation / src / main / java / org / gvsig / fmap / geom / operation / fromjts / FromJTS.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.geom.operation.fromjts; |
25 | |||
26 | import org.gvsig.fmap.geom.Geometry; |
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27 | import org.gvsig.fmap.geom.GeometryLocator; |
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28 | import org.gvsig.fmap.geom.GeometryManager; |
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29 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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30 | import org.gvsig.fmap.geom.operation.GeometryOperation; |
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31 | import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
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32 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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33 | import org.gvsig.fmap.geom.util.Converter; |
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34 | |||
35 | /**
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36 | * <p>
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37 | * Converts a geometry from JTS to DAL format. This is a special geometry operation
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38 | * because don't use the Geometry parameter and returns a JTS geometry. This kind
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39 | * of operation can be called from the {@link GeometryManager} using invokeOperation.
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40 | * </p>
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41 | * <p>
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42 | * This operation needs a JTS geometry loaded in the context. The only attribute
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43 | * of the {@link GeometryOperation} have to be a geometry of this type and the ID
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44 | * of this attribute will be JTSGeometry.
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45 | * </p>
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46 | *
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47 | * @author Nacho Brodin (nachobrodin@gmail.com)
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48 | *
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49 | */
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50 | public class FromJTS extends GeometryOperation { |
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51 | public static final String NAME = "fromJTS"; |
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52 | public static final String PARAM = "JTSGeometry"; |
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53 | protected static GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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54 | public static final int CODE = geomManager.getGeometryOperationCode(NAME); |
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55 | protected final static com.vividsolutions.jts.geom.GeometryFactory geomFactory = new com.vividsolutions.jts.geom.GeometryFactory(); |
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56 | |||
57 | public int getOperationIndex() { |
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58 | return CODE;
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59 | } |
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60 | |||
61 | /*
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62 | * (non-Javadoc)
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63 | * @see org.gvsig.fmap.geom.operation.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.geom.operation.GeometryOperationContext)
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64 | */
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65 | public Object invoke(Geometry geom, GeometryOperationContext ctx) |
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66 | throws GeometryOperationException {
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67 | Object obj = ctx.getAttribute("JTSGeometry"); |
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68 | if(obj instanceof com.vividsolutions.jts.geom.Geometry) { |
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69 | try {
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70 | return Converter.jtsToGeometry((com.vividsolutions.jts.geom.Geometry)obj);
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71 | } catch (CreateGeometryException e) {
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72 | throw new GeometryOperationException(e); |
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73 | } |
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74 | } |
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75 | return null; |
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76 | } |
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77 | |||
78 | } |