svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.impl / src / main / java / org / gvsig / fmap / geom / impl / GeometryPersistenceFactory.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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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., 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 | */
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22 | package org.gvsig.fmap.geom.impl; |
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23 | |||
24 | import org.gvsig.fmap.geom.Geometry; |
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25 | import org.gvsig.fmap.geom.GeometryException; |
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26 | import org.gvsig.fmap.geom.GeometryLocator; |
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27 | import org.gvsig.fmap.geom.GeometryManager; |
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28 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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29 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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30 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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31 | import org.gvsig.tools.dynobject.DynStruct; |
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32 | import org.gvsig.tools.persistence.AbstractSinglePersistenceFactory; |
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33 | import org.gvsig.tools.persistence.PersistentState; |
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34 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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35 | |||
36 | |||
37 | /**
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38 | * Factory to manage the persistence of {@link Geometry} objects.
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39 | *
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40 | * @author gvSIG Team
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41 | * @version $Id$
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42 | *
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43 | */
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44 | public class GeometryPersistenceFactory extends AbstractSinglePersistenceFactory { |
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45 | private static final String FIELD_STRING = "string"; |
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46 | private static final String FIELD_SRS = "srs"; |
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47 | |||
48 | private static final String DYNCLASS_NAME = "Geometry"; |
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49 | private static final String DYNCLASS_DESCRIPTION = "gvSIG Geometry"; |
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50 | |||
51 | private static final String OPERATION_FIELD_NAME = ""; |
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52 | |||
53 | private static final GeometryManager geometryManager = GeometryLocator.getGeometryManager(); |
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54 | |||
55 | /**
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56 | * @param theClass
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57 | * @param name
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58 | * @param description
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59 | * @param domainName
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60 | * @param domainUrl
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61 | */
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62 | protected GeometryPersistenceFactory() {
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63 | super(Geometry.class, DYNCLASS_NAME, DYNCLASS_DESCRIPTION, null, null); |
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64 | |||
65 | DynStruct definition = this.getDefinition();
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66 | |||
67 | definition.addDynFieldString(FIELD_STRING).setMandatory(true);
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68 | definition.addDynFieldString(FIELD_SRS).setMandatory(false);
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69 | } |
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70 | |||
71 | public Object createFromState(PersistentState state) |
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72 | throws PersistenceException {
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73 | String string = state.getString(FIELD_STRING);
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74 | String srs = state.getString(FIELD_SRS);
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75 | |||
76 | try {
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77 | return geometryManager.createFrom(string, srs);
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78 | } catch (CreateGeometryException e) {
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79 | throw new PersistenceException("Error creating the geometry", e); |
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80 | } catch (GeometryException e) {
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81 | throw new PersistenceException("Error creating the geometry", e); |
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82 | } |
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83 | } |
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84 | |||
85 | public void saveToState(PersistentState state, Object obj) |
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86 | throws PersistenceException {
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87 | try {
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88 | state.set(FIELD_STRING, ((Geometry)obj).convertToWKT()); |
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89 | } catch (GeometryOperationNotSupportedException e) {
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90 | throw new PersistenceException("Error converting the geometry", e); |
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91 | } catch (GeometryOperationException e) {
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92 | throw new PersistenceException("Error converting the geometry", e); |
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93 | } |
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94 | } |
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95 | } |