svn-gvsig-desktop / tags / dal_time_support_Build_1 / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / impl / SpatialManager.java @ 36111
History | View | Annotate | Download (8.93 KB)
| 1 |
|
|---|---|
| 2 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
| 3 |
*
|
| 4 |
* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
|
| 5 |
*
|
| 6 |
* This program is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU General Public License
|
| 8 |
* as published by the Free Software Foundation; either version 2
|
| 9 |
* of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This program is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
* GNU General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU General Public License
|
| 17 |
* along with this program; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 19 |
*
|
| 20 |
* For more information, contact:
|
| 21 |
*
|
| 22 |
* Generalitat Valenciana
|
| 23 |
* Conselleria d'Infraestructures i Transport
|
| 24 |
* Av. Blasco Ib??ez, 50
|
| 25 |
* 46010 VALENCIA
|
| 26 |
* SPAIN
|
| 27 |
*
|
| 28 |
* +34 963862235
|
| 29 |
* gvsig@gva.es
|
| 30 |
* www.gvsig.gva.es
|
| 31 |
*
|
| 32 |
* or
|
| 33 |
*
|
| 34 |
* IVER T.I. S.A
|
| 35 |
* Salamanca 50
|
| 36 |
* 46005 Valencia
|
| 37 |
* Spain
|
| 38 |
*
|
| 39 |
* +34 963163400
|
| 40 |
* dac@iver.es
|
| 41 |
*/
|
| 42 |
|
| 43 |
package org.gvsig.fmap.dal.feature.impl; |
| 44 |
|
| 45 |
import java.util.ArrayList; |
| 46 |
import java.util.Iterator; |
| 47 |
|
| 48 |
import org.slf4j.Logger; |
| 49 |
import org.slf4j.LoggerFactory; |
| 50 |
|
| 51 |
import org.gvsig.fmap.dal.exception.DataException; |
| 52 |
import org.gvsig.fmap.dal.feature.Feature; |
| 53 |
import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
| 54 |
import org.gvsig.fmap.dal.feature.FeatureIndex; |
| 55 |
import org.gvsig.fmap.dal.feature.FeatureIndexes; |
| 56 |
import org.gvsig.fmap.dal.feature.FeatureReference; |
| 57 |
import org.gvsig.fmap.dal.feature.FeatureSet; |
| 58 |
import org.gvsig.fmap.dal.feature.FeatureStore; |
| 59 |
import org.gvsig.fmap.dal.feature.FeatureType; |
| 60 |
import org.gvsig.fmap.geom.GeometryLocator; |
| 61 |
import org.gvsig.fmap.geom.primitive.Envelope; |
| 62 |
import org.gvsig.tools.dispose.DisposableIterator; |
| 63 |
|
| 64 |
/**
|
| 65 |
* DOCUMENT ME!
|
| 66 |
*
|
| 67 |
* @author Vicente Caballero Navarro
|
| 68 |
*/
|
| 69 |
public class SpatialManager { |
| 70 |
private static final Logger LOG = LoggerFactory.getLogger(SpatialManager.class); |
| 71 |
|
| 72 |
protected boolean isFullExtentDirty = true; |
| 73 |
private FeatureStore featureStore;
|
| 74 |
private FeatureIndex featureIndex = null; |
| 75 |
private Envelope originalEnvelope = null; |
| 76 |
private Envelope fullEnvelope = null; |
| 77 |
private ArrayList feaOperation=new ArrayList(); |
| 78 |
private boolean noSpatialData = false; |
| 79 |
|
| 80 |
public SpatialManager(FeatureStore featureStore, Envelope originalEnvelope)
|
| 81 |
throws DataException {
|
| 82 |
this.featureStore=featureStore;
|
| 83 |
FeatureIndexes findexes=featureStore.getIndexes(); |
| 84 |
// Comprobamos si hay algun campo espacial a manejar
|
| 85 |
|
| 86 |
FeatureType fType = this.featureStore.getDefaultFeatureType();
|
| 87 |
// TODO Multy FType !!
|
| 88 |
if (fType.getDefaultGeometryAttributeIndex() < 0) { |
| 89 |
noSpatialData = true;
|
| 90 |
return;
|
| 91 |
} |
| 92 |
FeatureAttributeDescriptor attr = fType.getAttributeDescriptor(fType |
| 93 |
.getDefaultGeometryAttributeIndex()); |
| 94 |
this.originalEnvelope = originalEnvelope;
|
| 95 |
if ((originalEnvelope != null) && (!originalEnvelope.isEmpty())) { |
| 96 |
this.fullEnvelope = originalEnvelope.getGeometry().getEnvelope();
|
| 97 |
} else {
|
| 98 |
FeatureAttributeDescriptor geoAttr = fType.getAttributeDescriptor(fType.getDefaultGeometryAttributeIndex()); |
| 99 |
try {
|
| 100 |
this.fullEnvelope = GeometryLocator.getGeometryManager()
|
| 101 |
.createEnvelope(geoAttr.getGeometrySubType()); |
| 102 |
} catch (Exception e) { |
| 103 |
// FIXME Excpetion
|
| 104 |
throw new RuntimeException(e); |
| 105 |
} |
| 106 |
} |
| 107 |
if (!fType.hasOID()) {
|
| 108 |
return;
|
| 109 |
} |
| 110 |
|
| 111 |
Iterator iterator = findexes.iterator();
|
| 112 |
FeatureIndex index; |
| 113 |
while (iterator.hasNext()) {
|
| 114 |
index = (FeatureIndex) iterator.next(); |
| 115 |
if (index.getAttributeNames().size() == 1 |
| 116 |
&& index.getAttributeNames().contains(attr.getName())) {
|
| 117 |
featureIndex = index; |
| 118 |
break;
|
| 119 |
} |
| 120 |
} |
| 121 |
|
| 122 |
if (featureIndex == null) { |
| 123 |
try{
|
| 124 |
featureIndex = featureStore.createIndex(fType, attr.getName(), |
| 125 |
"QuadtreeJts");
|
| 126 |
}catch (Exception e) { |
| 127 |
LOG.info("It can not create an index", e);
|
| 128 |
} |
| 129 |
} |
| 130 |
} |
| 131 |
|
| 132 |
|
| 133 |
|
| 134 |
/**
|
| 135 |
* DOCUMENT ME!
|
| 136 |
*
|
| 137 |
* @param feature DOCUMENT ME!
|
| 138 |
* @param oldFeature DOCUMENT ME!
|
| 139 |
*/
|
| 140 |
public void updateFeature(Feature feature, Feature oldFeature) { |
| 141 |
if (noSpatialData) {
|
| 142 |
return;
|
| 143 |
} |
| 144 |
if (featureIndex != null) { |
| 145 |
featureIndex.delete(oldFeature); |
| 146 |
feaOperation.add(new FeatureOperation(((DefaultFeature) oldFeature)
|
| 147 |
.getReference(), FeatureOperation.DELETE)); |
| 148 |
featureIndex.insert(feature); |
| 149 |
feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
|
| 150 |
.getReference(), FeatureOperation.INSERT)); |
| 151 |
// } else {
|
| 152 |
// fullEnvelope.add(feature.getDefaultEnvelope());
|
| 153 |
} |
| 154 |
isFullExtentDirty = true;
|
| 155 |
} |
| 156 |
|
| 157 |
/**
|
| 158 |
* DOCUMENT ME!
|
| 159 |
*
|
| 160 |
* @param feature DOCUMENT ME!
|
| 161 |
*/
|
| 162 |
public void insertFeature(Feature feature) { |
| 163 |
if (noSpatialData) {
|
| 164 |
return;
|
| 165 |
} |
| 166 |
if (featureIndex != null) { |
| 167 |
featureIndex.insert(feature); |
| 168 |
feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
|
| 169 |
.getReference(), FeatureOperation.INSERT)); |
| 170 |
} else if (!isFullExtentDirty) { |
| 171 |
fullEnvelope.add(feature.getDefaultEnvelope()); |
| 172 |
} |
| 173 |
} |
| 174 |
|
| 175 |
/**
|
| 176 |
* DOCUMENT ME!
|
| 177 |
*
|
| 178 |
* @param feature DOCUMENT ME!
|
| 179 |
*/
|
| 180 |
public void deleteFeature(Feature feature) { |
| 181 |
if (noSpatialData) {
|
| 182 |
return;
|
| 183 |
} |
| 184 |
if (featureIndex != null) { |
| 185 |
featureIndex.delete(feature); |
| 186 |
feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
|
| 187 |
.getReference(), FeatureOperation.DELETE)); |
| 188 |
} |
| 189 |
isFullExtentDirty = true;
|
| 190 |
} |
| 191 |
|
| 192 |
public void clear() { |
| 193 |
} |
| 194 |
|
| 195 |
public Envelope getEnvelope() throws DataException { |
| 196 |
if (noSpatialData) {
|
| 197 |
return null; |
| 198 |
} |
| 199 |
if (!isFullExtentDirty){
|
| 200 |
return this.fullEnvelope; |
| 201 |
} |
| 202 |
|
| 203 |
// FIXME in every changes when anyone ask for envelope it was regenerated.
|
| 204 |
// if we assume that the envelope may not be the minimum in edit mode
|
| 205 |
// this call must be very much faster
|
| 206 |
|
| 207 |
|
| 208 |
FeatureAttributeDescriptor attr = featureStore.getDefaultFeatureType() |
| 209 |
.getAttributeDescriptor( |
| 210 |
featureStore.getDefaultFeatureType() |
| 211 |
.getDefaultGeometryAttributeIndex()); |
| 212 |
Envelope fullEnvelope = null;
|
| 213 |
|
| 214 |
FeatureSet set = null;
|
| 215 |
DisposableIterator iterator = null;
|
| 216 |
try {
|
| 217 |
set = featureStore.getFeatureSet(); |
| 218 |
iterator = set.fastIterator(); |
| 219 |
//First while to initialize the feature envelope
|
| 220 |
while (iterator.hasNext()) {
|
| 221 |
Feature feature = (Feature) iterator.next(); |
| 222 |
Envelope envelope = feature.getDefaultEnvelope(); |
| 223 |
if (envelope != null){ |
| 224 |
fullEnvelope = (Envelope)envelope.clone(); |
| 225 |
break;
|
| 226 |
} |
| 227 |
} |
| 228 |
//Second while to add new evelopes tho the full envelope
|
| 229 |
while (iterator.hasNext()) {
|
| 230 |
Feature feature = (Feature) iterator.next(); |
| 231 |
Envelope envelope = feature.getDefaultEnvelope(); |
| 232 |
if(envelope!=null){ |
| 233 |
fullEnvelope.add(envelope); |
| 234 |
} |
| 235 |
} |
| 236 |
//Creating an empty envelope by default
|
| 237 |
if (fullEnvelope == null){ |
| 238 |
fullEnvelope = GeometryLocator.getGeometryManager().createEnvelope( |
| 239 |
attr.getGeometrySubType()); |
| 240 |
} |
| 241 |
} catch (Exception e) { |
| 242 |
throw new RuntimeException(e); |
| 243 |
} finally {
|
| 244 |
if (iterator != null) { |
| 245 |
iterator.dispose(); |
| 246 |
} |
| 247 |
if (set != null) { |
| 248 |
set.dispose(); |
| 249 |
} |
| 250 |
} |
| 251 |
this.fullEnvelope = fullEnvelope;
|
| 252 |
this.isFullExtentDirty = false; |
| 253 |
return fullEnvelope;
|
| 254 |
} |
| 255 |
|
| 256 |
|
| 257 |
|
| 258 |
public void cancelModifies() { |
| 259 |
if (noSpatialData) {
|
| 260 |
return;
|
| 261 |
} |
| 262 |
if (featureIndex != null){ |
| 263 |
Iterator iterator=feaOperation.iterator();
|
| 264 |
while (iterator.hasNext()) {
|
| 265 |
try {
|
| 266 |
FeatureOperation fo = (FeatureOperation) iterator.next(); |
| 267 |
if (fo.getOperation()==FeatureOperation.INSERT){
|
| 268 |
featureIndex.delete(fo.getFeatureReference().getFeature()); |
| 269 |
}else if (fo.getOperation()==FeatureOperation.DELETE){ |
| 270 |
featureIndex.insert(fo.getFeatureReference().getFeature()); |
| 271 |
} |
| 272 |
} catch (DataException e) {
|
| 273 |
// TODO Auto-generated catch block
|
| 274 |
e.printStackTrace(); |
| 275 |
} |
| 276 |
} |
| 277 |
} |
| 278 |
if (originalEnvelope!=null){ |
| 279 |
fullEnvelope = originalEnvelope.getGeometry().getEnvelope(); |
| 280 |
} else {
|
| 281 |
fullEnvelope = null;
|
| 282 |
} |
| 283 |
isFullExtentDirty = false;
|
| 284 |
} |
| 285 |
|
| 286 |
private class FeatureOperation{ |
| 287 |
final static int INSERT=0; |
| 288 |
final static int DELETE=1; |
| 289 |
private FeatureReference ref;
|
| 290 |
private int operation; |
| 291 |
public FeatureOperation(FeatureReference fe,int op){ |
| 292 |
ref=fe; |
| 293 |
operation=op; |
| 294 |
} |
| 295 |
public FeatureReference getFeatureReference() {
|
| 296 |
return ref;
|
| 297 |
} |
| 298 |
public void setFeatureReference(FeatureReference ref) { |
| 299 |
this.ref = ref;
|
| 300 |
} |
| 301 |
public int getOperation() { |
| 302 |
return operation;
|
| 303 |
} |
| 304 |
public void setOperation(int operation) { |
| 305 |
this.operation = operation;
|
| 306 |
} |
| 307 |
} |
| 308 |
|
| 309 |
} |