svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / coerce / CoerceToGeometry.java @ 45673
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 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 3
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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.fmap.geom.jts.coerce; |
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import java.util.Iterator; |
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import java.util.logging.Level; |
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import java.util.logging.Logger; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryCoercionContext; |
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import static org.gvsig.fmap.geom.GeometryCoercionContext.MODE_ONERROR_DONTCONVERT; |
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import static org.gvsig.fmap.geom.GeometryCoercionContext.MODE_ONERROR_NULL; |
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import static org.gvsig.fmap.geom.GeometryCoercionContext.MODE_ONERROR_THROW; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.aggregate.MultiLine; |
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import org.gvsig.fmap.geom.aggregate.MultiPoint; |
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import org.gvsig.fmap.geom.aggregate.MultiPolygon; |
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import org.gvsig.fmap.geom.jts.AbstractGeometry; |
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import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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import org.gvsig.fmap.geom.primitive.Line; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.primitive.Polygon; |
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import org.gvsig.fmap.geom.primitive.Primitive; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.tools.dataTypes.AbstractCoercion; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.CoercionContext; |
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/**
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* Convert a object to Geometry.
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*
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* Support convert: - Geometry to Geometry (do nothing) - WKB (byte[]) to
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* Geometry - WKT (String/toString) to Geometry
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*
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*
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* @author gvSIG Team
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* @version $Id$
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*
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*/
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@SuppressWarnings("UseSpecificCatch") |
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public class CoerceToGeometry extends AbstractCoercion { |
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private static GeometryManager manager = null; |
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@Override
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public Object coerce(Object value, CoercionContext context) throws CoercionException { |
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if (value == null) { |
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return value;
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} |
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int mode = MODE_ONERROR_NULL;
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Geometry geom; |
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GeometryType targetGeometryType = null;
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Geometry sourcegeom = null;
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try {
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// TODO: descomentarizar para que tengan efecto los cambios.
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// if ( context instanceof GeometryCoercionContext) {
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// GeometryCoercionContext geomContext = (GeometryCoercionContext) context;
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// targetGeometryType = geomContext.getGeometryType();
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// mode = geomContext.getMode();
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// }
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if ( value instanceof Geometry ) { |
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geom = (Geometry) value; |
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} else {
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if (value instanceof byte[]) { |
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geom = getManager().createFrom((byte[]) value); |
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} else {
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String wkt = value.toString();
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if (StringUtils.isBlank(wkt)) {
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return null; |
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} |
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geom = getManager().createFrom(value.toString()); |
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} |
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if (geom == null) { |
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// Can't parse from WKB/WKT
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switch(mode) {
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case MODE_ONERROR_NULL:
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case MODE_ONERROR_DONTCONVERT:
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return null; |
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case MODE_ONERROR_THROW:
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default:
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throw new CoercionException(); |
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} |
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} |
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} |
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if ( targetGeometryType==null) { |
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return geom;
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} |
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sourcegeom = geom; |
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if (geom.getGeometryType().equals(targetGeometryType)) {
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return geom;
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} |
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switch (targetGeometryType.getType()) {
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case Geometry.TYPES.MULTIPOINT:
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geom = this.convertToMultipoint(targetGeometryType, geom);
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break;
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case Geometry.TYPES.MULTILINE:
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geom = this.convertToMultiline(targetGeometryType, geom);
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break;
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case Geometry.TYPES.MULTIPOLYGON:
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geom = this.convertToMultipolygon(targetGeometryType, geom);
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break;
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case Geometry.TYPES.POINT:
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geom = this.convertToPoint(targetGeometryType, geom);
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break;
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case Geometry.TYPES.LINE:
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geom = this.convertToLine(targetGeometryType, geom);
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break;
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case Geometry.TYPES.POLYGON:
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geom = this.convertToPolygon(targetGeometryType, geom);
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break;
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case Geometry.TYPES.GEOMETRY:
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geom = this.convertToGeometry(targetGeometryType, geom);
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break;
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default:
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geom = null;
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break;
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} |
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if (geom != null) { |
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// Return converted geometry
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return geom;
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} |
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switch(mode) {
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case MODE_ONERROR_NULL:
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return null; |
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case MODE_ONERROR_DONTCONVERT:
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return sourcegeom;
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case MODE_ONERROR_THROW:
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default:
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throw new CoercionException(); |
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} |
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} catch (Exception e) { |
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switch(mode) {
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case MODE_ONERROR_NULL:
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return null; |
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case MODE_ONERROR_DONTCONVERT:
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return sourcegeom;
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case MODE_ONERROR_THROW:
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default:
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throw new CoercionException(); |
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} |
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} |
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} |
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private static GeometryManager getManager() { |
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if (manager == null) { |
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manager = GeometryLocator.getGeometryManager(); |
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} |
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return manager;
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} |
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private Geometry convertToMultipoint(GeometryType geometryType, Geometry geom) {
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try {
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MultiPoint target = null;
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switch (geom.getType()) {
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case Geometry.TYPES.POINT:
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target = (MultiPoint) geometryType.create(); |
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target.addPoint((Point) geom);
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break;
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case Geometry.TYPES.LINE:
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if( geometryType.getSubType() == geom.getGeometryType().getSubType() ) {
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target = ((Line) geom).toPoints();
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} else {
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target = (MultiPoint) geometryType.create(); |
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for (Point point : convertPoints(geometryType, ((Line) geom).toPoints().iterator())) { |
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} |
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target.addPoint((Point) geom);
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} |
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break;
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case Geometry.TYPES.POLYGON:
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target = ((Polygon) geom).toPoints();
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break;
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case Geometry.TYPES.MULTILINE:
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target = ((MultiLine) geom).toPoints(); |
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break;
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case Geometry.TYPES.MULTIPOLYGON:
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target = ((MultiPolygon) geom).toPoints(); |
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break;
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} |
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return target;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Geometry convertToMultiline(GeometryType geometryType, Geometry geom) {
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try {
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MultiLine target = null;
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switch (geom.getType()) {
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case Geometry.TYPES.LINE:
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target = (MultiLine) geometryType.create(); |
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target.addPrimitive((Primitive) geom); |
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break;
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case Geometry.TYPES.POLYGON:
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target = (MultiLine) geometryType.create(); |
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target.addPrimitive((Primitive) ((Polygon) geom).toLines());
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break;
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case Geometry.TYPES.MULTIPOLYGON:
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target = (MultiLine) geometryType.create(); |
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for (Geometry polygon : ((MultiPolygon) geom)) {
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target.addPrimitive((Primitive) ((Polygon) polygon).toLines());
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} |
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break;
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} |
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return target;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Geometry convertToMultipolygon(GeometryType geometryType, Geometry geom) {
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try {
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MultiPolygon target = null;
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switch (geom.getType()) {
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case Geometry.TYPES.LINE:
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target = (MultiPolygon) geometryType.create(); |
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Polygon polygon = getManager().createPolygon(geometryType.getSubType());
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for (Point point : (Line)geom ) { |
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polygon.addVertex(point); |
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} |
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if( !polygon.isClosed() ) {
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polygon.addVertex(polygon.getVertex(0));
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} |
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target.addPrimitive(polygon); |
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break;
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case Geometry.TYPES.POLYGON:
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target = (MultiPolygon) geometryType.create(); |
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target.addPrimitive((Primitive) ((Polygon) geom));
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break;
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} |
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return target;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Geometry convertToPoint(GeometryType geometryType, Geometry geom) {
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try {
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Point target = null; |
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switch (geom.getType()) {
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case Geometry.TYPES.MULTIPOINT:
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MultiPoint multi = (MultiPoint)geom; |
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if( multi.getPrimitivesNumber()==1 ) { |
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target = (Point) multi.getPrimitiveAt(0); |
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} |
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break;
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} |
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return target;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Geometry convertToLine(GeometryType geometryType, Geometry geom) {
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try {
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Line target = null; |
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MultiLine multiline; |
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MultiPolygon multipolygon; |
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switch (geom.getType()) {
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case Geometry.TYPES.MULTILINE:
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multiline = (MultiLine)geom; |
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if( multiline.getPrimitivesNumber()==1 ) { |
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target = (Line) multiline.getPrimitiveAt(0); |
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} |
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break;
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case Geometry.TYPES.POLYGON:
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multiline = ((Polygon)geom).toLines();
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if( multiline.getPrimitivesNumber()==1 ) { |
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target = (Line) multiline.getPrimitiveAt(0); |
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} |
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break;
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case Geometry.TYPES.MULTIPOLYGON:
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multipolygon = (MultiPolygon)geom; |
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if( multipolygon.getPrimitivesNumber()==1 ) { |
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multiline = multipolygon.getPrimitiveAt(0).toLines();
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if( multiline.getPrimitivesNumber()==1 ) { |
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target = (Line) multiline.getPrimitiveAt(0); |
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} |
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} |
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break;
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} |
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return target;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Geometry convertToPolygon(GeometryType geometryType, Geometry geom) {
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try {
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Polygon target = null; |
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switch (geom.getType()) {
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case Geometry.TYPES.LINE:
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target = (Polygon) geometryType.create();
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for (Point point : (Line)geom ) { |
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target.addVertex(point); |
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} |
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if( !target.isClosed() ) {
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target.addVertex(target.getVertex(0));
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} |
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break;
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case Geometry.TYPES.MULTILINE:
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MultiLine multiline = (MultiLine)geom; |
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if( multiline.getPrimitivesNumber()==1 ) { |
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target = (Polygon) geometryType.create();
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for (Point point : (Line) multiline.getPrimitiveAt(0) ) { |
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target.addVertex(point); |
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} |
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if( !target.isClosed() ) {
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target.addVertex(target.getVertex(0));
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} |
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} |
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break;
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case Geometry.TYPES.MULTIPOLYGON:
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MultiPolygon multipolygon = (MultiPolygon)geom; |
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if( multipolygon.getPrimitivesNumber()==1 ) { |
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target = (Polygon) multipolygon.getPrimitiveAt(0); |
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} |
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break;
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} |
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return target;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Geometry convertToGeometry(GeometryType geometryType, Geometry geom) {
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try {
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if( geom instanceof AbstractGeometry ) { |
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((AbstractGeometry)geom).setGeometryType(geometryType); |
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return geom;
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} |
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return null; |
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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private Iterable<Point> convertPoints(GeometryType geometryType, Iterator<Geometry> pointIterator) { |
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Iterable<Point> iterable = () -> { |
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Iterator<Point> iterator = new Iterator<Point>() { |
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@Override
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public boolean hasNext() { |
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return pointIterator.hasNext();
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} |
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@Override
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public Point next() { |
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Point sourcePoint = (Point) pointIterator.next(); |
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if( geometryType.hasZ() ) {
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if( geometryType.hasM() ) {
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return sourcePoint.force3DM();
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} else {
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return (Point) sourcePoint.force3D(); |
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} |
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} else if( geometryType.hasM() ) { |
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return sourcePoint.force2DM();
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} else {
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try {
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return (Point) sourcePoint.force2D(); |
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} catch (Exception ex) { |
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throw new RuntimeException(ex); |
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} |
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} |
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} |
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}; |
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return iterator;
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}; |
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return iterable;
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} |
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} |