svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / operations / strategies / DBStrategy.java @ 5576
History | View | Annotate | Download (11.3 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Created on 08-mar-2005
|
| 3 |
*
|
| 4 |
* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
| 5 |
*
|
| 6 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
| 7 |
*
|
| 8 |
* This program is free software; you can redistribute it and/or
|
| 9 |
* modify it under the terms of the GNU General Public License
|
| 10 |
* as published by the Free Software Foundation; either version 2
|
| 11 |
* of the License, or (at your option) any later version.
|
| 12 |
*
|
| 13 |
* This program is distributed in the hope that it will be useful,
|
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 16 |
* GNU General Public License for more details.
|
| 17 |
*
|
| 18 |
* You should have received a copy of the GNU General Public License
|
| 19 |
* along with this program; if not, write to the Free Software
|
| 20 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
| 21 |
*
|
| 22 |
* For more information, contact:
|
| 23 |
*
|
| 24 |
* Generalitat Valenciana
|
| 25 |
* Conselleria d'Infraestructures i Transport
|
| 26 |
* Av. Blasco Ib??ez, 50
|
| 27 |
* 46010 VALENCIA
|
| 28 |
* SPAIN
|
| 29 |
*
|
| 30 |
* +34 963862235
|
| 31 |
* gvsig@gva.es
|
| 32 |
* www.gvsig.gva.es
|
| 33 |
*
|
| 34 |
* or
|
| 35 |
*
|
| 36 |
* IVER T.I. S.A
|
| 37 |
* Salamanca 50
|
| 38 |
* 46005 Valencia
|
| 39 |
* Spain
|
| 40 |
*
|
| 41 |
* +34 963163400
|
| 42 |
* dac@iver.es
|
| 43 |
*/
|
| 44 |
package com.iver.cit.gvsig.fmap.operations.strategies; |
| 45 |
|
| 46 |
import java.awt.Graphics2D; |
| 47 |
import java.awt.geom.Rectangle2D; |
| 48 |
import java.awt.image.BufferedImage; |
| 49 |
|
| 50 |
import org.cresques.cts.ICoordTrans; |
| 51 |
|
| 52 |
import com.iver.cit.gvsig.fmap.DriverException; |
| 53 |
import com.iver.cit.gvsig.fmap.ViewPort; |
| 54 |
import com.iver.cit.gvsig.fmap.core.IFeature; |
| 55 |
import com.iver.cit.gvsig.fmap.core.IGeometry; |
| 56 |
import com.iver.cit.gvsig.fmap.core.v02.FSymbol; |
| 57 |
import com.iver.cit.gvsig.fmap.drivers.DriverAttributes; |
| 58 |
import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
| 59 |
import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator; |
| 60 |
import com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver; |
| 61 |
import com.iver.cit.gvsig.fmap.layers.FBitSet; |
| 62 |
import com.iver.cit.gvsig.fmap.layers.FLayer; |
| 63 |
import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
| 64 |
import com.iver.cit.gvsig.fmap.layers.ISpatialDB; |
| 65 |
import com.iver.cit.gvsig.fmap.layers.SpatialCache; |
| 66 |
import com.iver.cit.gvsig.fmap.layers.layerOperations.Selectable; |
| 67 |
import com.iver.cit.gvsig.fmap.layers.layerOperations.SingleLayer; |
| 68 |
import com.iver.cit.gvsig.fmap.rendering.VectorialLegend; |
| 69 |
import com.iver.utiles.swing.threads.Cancellable; |
| 70 |
import com.iver.utiles.swing.threads.CancellableMonitorable; |
| 71 |
|
| 72 |
/**
|
| 73 |
* @author FJP
|
| 74 |
*
|
| 75 |
* TODO To change the template for this generated type comment go to
|
| 76 |
* Window - Preferences - Java - Code Generation - Code and Comments
|
| 77 |
*/
|
| 78 |
public class DBStrategy extends DefaultStrategy { |
| 79 |
|
| 80 |
public DBStrategy(FLayer capa) {
|
| 81 |
super(capa);
|
| 82 |
} |
| 83 |
|
| 84 |
|
| 85 |
/* (non-Javadoc)
|
| 86 |
* @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#draw(java.awt.image.BufferedImage, java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort, com.iver.cit.gvsig.fmap.operations.Cancellable)
|
| 87 |
*/
|
| 88 |
public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, Cancellable cancel) throws DriverException { |
| 89 |
// Nos aprovechamos del SQL para lanzar la consulta
|
| 90 |
// teniendo en cuenta el boundingbox que toca.
|
| 91 |
FLyrVect lyr = (FLyrVect) getCapa(); |
| 92 |
ISpatialDB dbAdapter = (ISpatialDB) ((SingleLayer) capa).getSource(); |
| 93 |
VectorialDatabaseDriver dbDriver = (VectorialDatabaseDriver) dbAdapter.getDriver(); |
| 94 |
try {
|
| 95 |
dbAdapter.start(); |
| 96 |
Selectable selectable=lyr.getRecordset(); |
| 97 |
ICoordTrans ct = lyr.getCoordTrans(); |
| 98 |
FBitSet bitSet = selectable.getSelection(); |
| 99 |
|
| 100 |
String strEPSG = viewPort.getProjection().getAbrev().substring(5); |
| 101 |
// TODO: EXPLORAR LAS LEYENDAS PARA SABER LOS CAMPOS QUE VAMOS
|
| 102 |
// A NECESITAR RECUPERAR, PARA INCLUIR EN LA CONSULTA SOLO
|
| 103 |
// AQUELLOS QUE VAMOS A NECESITAR. CON ESO GANAREMOS VELOCIDAD.
|
| 104 |
// Ejemplo:
|
| 105 |
// En ArcSDE:
|
| 106 |
// con Vias cogiendo un campo solo: 5 segundos
|
| 107 |
// con todos los campos de Vias: 11 segundos.
|
| 108 |
// => MODIFICAR EL getFeatureIterator para que admita los nombres
|
| 109 |
// de los campos adem?s del rect?ngulo que pides.
|
| 110 |
String[] usedFields = null; |
| 111 |
VectorialLegend l = null;
|
| 112 |
if (lyr.getLegend() instanceof VectorialLegend) |
| 113 |
{
|
| 114 |
l = (VectorialLegend) lyr.getLegend(); |
| 115 |
} |
| 116 |
|
| 117 |
Rectangle2D rectAux = viewPort.getAdjustedExtent();
|
| 118 |
if (ct != null) { |
| 119 |
ICoordTrans invertedCT = ct.getInverted(); |
| 120 |
rectAux = invertedCT.convert(rectAux); |
| 121 |
} |
| 122 |
|
| 123 |
|
| 124 |
usedFields = l.getUsedFields(); |
| 125 |
|
| 126 |
|
| 127 |
IFeatureIterator geomIt = dbAdapter.getFeatureIterator(rectAux, strEPSG, usedFields); |
| 128 |
if (geomIt == null) |
| 129 |
{
|
| 130 |
// dbAdapter.stop();
|
| 131 |
return;
|
| 132 |
} |
| 133 |
|
| 134 |
|
| 135 |
DriverAttributes attr = dbAdapter.getDriverAttributes(); |
| 136 |
boolean bMustClone = false; |
| 137 |
if (attr != null) |
| 138 |
{
|
| 139 |
if (attr.isLoadedInMemory())
|
| 140 |
{
|
| 141 |
bMustClone = attr.isLoadedInMemory(); |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
|
| 146 |
int i;
|
| 147 |
FSymbol symbol; |
| 148 |
SpatialCache cache = lyr.createSpatialCache(); |
| 149 |
while (geomIt.hasNext())
|
| 150 |
{
|
| 151 |
if (cancel.isCanceled()) {
|
| 152 |
geomIt.closeIterator(); |
| 153 |
break;
|
| 154 |
} |
| 155 |
IFeature feat = geomIt.next(); |
| 156 |
if (feat == null) |
| 157 |
{
|
| 158 |
continue;
|
| 159 |
} |
| 160 |
IGeometry geom = feat.getGeometry(); |
| 161 |
|
| 162 |
// System.out.println("PINTANDO FEATURE " + feat.getID());
|
| 163 |
|
| 164 |
if (ct != null) { |
| 165 |
if (bMustClone)
|
| 166 |
geom = geom.cloneGeometry(); |
| 167 |
geom.reProject(ct); |
| 168 |
} |
| 169 |
|
| 170 |
i = dbAdapter.getRowIndexByFID(feat); |
| 171 |
// System.out.println("Antes de pintar " + i);
|
| 172 |
// Value val = feat.getAttribute(0);
|
| 173 |
symbol = l.getSymbolByFeature(feat); |
| 174 |
// symbol = l.getSymbol(i);
|
| 175 |
if (symbol == null) continue; |
| 176 |
if (bitSet.get(i)) {
|
| 177 |
symbol = FSymbol.getSymbolForSelection(symbol); |
| 178 |
} |
| 179 |
|
| 180 |
if (cache != null) |
| 181 |
{
|
| 182 |
// TODO: Comprobar aqu? tambi?n si esto es necesario.
|
| 183 |
if (lyr.isSpatialCacheEnabled())
|
| 184 |
{
|
| 185 |
if (cache.getMaxFeatures() >= cache.size())
|
| 186 |
{
|
| 187 |
// Ya reproyectado todo
|
| 188 |
cache.insert(geom.getBounds2D(), geom); |
| 189 |
} |
| 190 |
} |
| 191 |
} |
| 192 |
|
| 193 |
// symbol = l.getDefaultSymbol();
|
| 194 |
geom.drawInts(g,viewPort, symbol); |
| 195 |
|
| 196 |
} |
| 197 |
dbAdapter.stop(); |
| 198 |
} catch (DriverIOException e) {
|
| 199 |
throw new DriverException(e); |
| 200 |
} |
| 201 |
|
| 202 |
} |
| 203 |
/**
|
| 204 |
* Processes features of layer whose geometries would
|
| 205 |
* intersect rectangle passed as param by calling visitor's
|
| 206 |
* visit method.
|
| 207 |
*
|
| 208 |
* FIXME FeatureVisitor is designed to work with memory and
|
| 209 |
* file drivers (visit(IGeometry, index), and to work with
|
| 210 |
* geometries (thats the reason for not to create Values, instead
|
| 211 |
* of pass an index)
|
| 212 |
*
|
| 213 |
* But DBDrivers recovers IGeometry and Values in dbAdapter.getFeatureIterator
|
| 214 |
* method. We must add a visit(Feature) method to FeatureVisitor.
|
| 215 |
*
|
| 216 |
*
|
| 217 |
*/
|
| 218 |
public void process(FeatureVisitor visitor, Rectangle2D rect, CancellableMonitorable cancel) |
| 219 |
throws DriverException, VisitException{
|
| 220 |
FLyrVect lyr = (FLyrVect) getCapa(); |
| 221 |
ISpatialDB dbAdapter = (ISpatialDB) ((SingleLayer) capa).getSource(); |
| 222 |
VectorialDatabaseDriver dbDriver = (VectorialDatabaseDriver) dbAdapter.getDriver(); |
| 223 |
try {
|
| 224 |
dbAdapter.start(); |
| 225 |
ICoordTrans ct = lyr.getCoordTrans(); |
| 226 |
String strEPSG = lyr.getProjection().getAbrev().substring(5); |
| 227 |
Rectangle2D rectAux = rect;
|
| 228 |
if (ct != null) { |
| 229 |
ICoordTrans invertedCT = ct.getInverted(); |
| 230 |
rectAux = invertedCT.convert(rectAux); |
| 231 |
} |
| 232 |
IFeatureIterator geomIt = dbAdapter.getFeatureIterator(rectAux, strEPSG, null);
|
| 233 |
if (geomIt == null){ |
| 234 |
return;
|
| 235 |
} |
| 236 |
DriverAttributes attr = dbAdapter.getDriverAttributes(); |
| 237 |
boolean bMustClone = false; |
| 238 |
if (attr != null) |
| 239 |
{
|
| 240 |
if (attr.isLoadedInMemory())
|
| 241 |
{
|
| 242 |
bMustClone = attr.isLoadedInMemory(); |
| 243 |
}//if
|
| 244 |
}//if
|
| 245 |
int i;
|
| 246 |
while (geomIt.hasNext())
|
| 247 |
{
|
| 248 |
if(cancel != null){ |
| 249 |
cancel.reportStep(); |
| 250 |
} |
| 251 |
IFeature feat = geomIt.next(); |
| 252 |
IGeometry geom = feat.getGeometry(); |
| 253 |
if (ct != null) { |
| 254 |
if (bMustClone){
|
| 255 |
geom = geom.cloneGeometry(); |
| 256 |
}//if
|
| 257 |
geom.reProject(ct); |
| 258 |
}//if
|
| 259 |
i = dbDriver.getRowIndexByFID(feat); |
| 260 |
if (geom.intersects(rect)){
|
| 261 |
visitor.visit(geom, i); |
| 262 |
} |
| 263 |
} |
| 264 |
dbAdapter.stop(); |
| 265 |
} catch (DriverIOException e) {
|
| 266 |
throw new DriverException(e); |
| 267 |
} |
| 268 |
} |
| 269 |
|
| 270 |
/* (non-Javadoc)
|
| 271 |
* @see com.iver.cit.gvsig.fmap.operations.strategies.DefaultStrategy#queryByRect(java.awt.geom.Rectangle2D)
|
| 272 |
*/
|
| 273 |
public FBitSet queryByRect(Rectangle2D rect, CancellableMonitorable cancel) throws DriverException { |
| 274 |
// Nos aprovechamos del SQL para lanzar la consulta
|
| 275 |
// teniendo en cuenta el boundingbox que toca.
|
| 276 |
FLyrVect lyr = (FLyrVect) getCapa(); |
| 277 |
ISpatialDB dbAdapter = (ISpatialDB) ((SingleLayer) capa).getSource(); |
| 278 |
VectorialDatabaseDriver dbDriver = (VectorialDatabaseDriver) dbAdapter.getDriver(); |
| 279 |
try {
|
| 280 |
dbAdapter.start(); |
| 281 |
ICoordTrans ct = lyr.getCoordTrans(); |
| 282 |
String strEPSG = lyr.getProjection().getAbrev().substring(5); |
| 283 |
Rectangle2D rectAux = rect;
|
| 284 |
if (ct != null) { |
| 285 |
ICoordTrans invertedCT = ct.getInverted(); |
| 286 |
rectAux = invertedCT.convert(rectAux); |
| 287 |
} |
| 288 |
|
| 289 |
FBitSet selection = new FBitSet();
|
| 290 |
|
| 291 |
IFeatureIterator geomIt = dbAdapter.getFeatureIterator(rectAux, strEPSG, null);
|
| 292 |
if (geomIt == null) |
| 293 |
{
|
| 294 |
return selection;
|
| 295 |
} |
| 296 |
|
| 297 |
|
| 298 |
DriverAttributes attr = dbAdapter.getDriverAttributes(); |
| 299 |
boolean bMustClone = false; |
| 300 |
if (attr != null) |
| 301 |
{
|
| 302 |
if (attr.isLoadedInMemory())
|
| 303 |
{
|
| 304 |
bMustClone = attr.isLoadedInMemory(); |
| 305 |
} |
| 306 |
} |
| 307 |
|
| 308 |
|
| 309 |
int i;
|
| 310 |
|
| 311 |
while (geomIt.hasNext())
|
| 312 |
{
|
| 313 |
if(cancel != null) |
| 314 |
{
|
| 315 |
cancel.reportStep(); |
| 316 |
if(cancel.isCanceled())
|
| 317 |
{
|
| 318 |
dbAdapter.stop(); |
| 319 |
return selection;
|
| 320 |
} |
| 321 |
} |
| 322 |
IFeature feat = geomIt.next(); |
| 323 |
IGeometry geom = feat.getGeometry(); |
| 324 |
|
| 325 |
if (ct != null) { |
| 326 |
if (bMustClone)
|
| 327 |
geom = geom.cloneGeometry(); |
| 328 |
geom.reProject(ct); |
| 329 |
} |
| 330 |
|
| 331 |
i = dbDriver.getRowIndexByFID(feat); |
| 332 |
if (geom.intersects(rect))
|
| 333 |
selection.set(i, true);
|
| 334 |
} |
| 335 |
dbAdapter.stop(); |
| 336 |
|
| 337 |
return selection;
|
| 338 |
} catch (DriverIOException e) {
|
| 339 |
throw new DriverException(e); |
| 340 |
} |
| 341 |
|
| 342 |
} |
| 343 |
|
| 344 |
|
| 345 |
} |