Revision 3200
Added by Jing Tao almost 18 years ago
| src/edu/ucsb/nceas/metacat/spatial/SpatialDataset.java | ||
|---|---|---|
| 53 | 53 |
*/ |
| 54 | 54 |
public class SpatialDataset {
|
| 55 | 55 |
|
| 56 |
SpatialFeatureSchema featureSchema = new SpatialFeatureSchema(); |
|
| 57 |
|
|
| 56 |
private static SpatialFeatureSchema featureSchema = new SpatialFeatureSchema(); |
|
| 57 |
private static ShapefileDataStore polygonStore = null; |
|
| 58 |
private static ShapefileDataStore pointStore = null; |
|
| 59 |
private static FeatureStore featureStore = null; |
|
| 60 |
|
|
| 61 |
|
|
| 58 | 62 |
//public String polygonShpUri = MetaCatUtil.getOption("certPath") + "data/metacat_shps/data_bounds.shp";
|
| 59 | 63 |
//public String pointShpUri = MetaCatUtil.getOption("certPath")+ "data/metacat_shps/data_points.shp";
|
| 60 | 64 |
|
| ... | ... | |
| 67 | 71 |
/** |
| 68 | 72 |
* empty constructor for SpatialDataset |
| 69 | 73 |
*/ |
| 70 |
public SpatialDataset() {
|
|
| 74 |
public SpatialDataset() throws IOException {
|
|
| 75 |
|
|
| 76 |
polygonStore = new ShapefileDataStore( (new File( featureSchema.polygonShpUri)).toURL() ); |
|
| 77 |
pointStore = new ShapefileDataStore( (new File( featureSchema.pointShpUri)).toURL() ); |
|
| 71 | 78 |
|
| 72 | 79 |
} |
| 73 | 80 |
|
| ... | ... | |
| 114 | 121 |
filter.addRightValue(filterFactory.createLiteralExpression(docid)); |
| 115 | 122 |
} catch (IllegalFilterException e) {
|
| 116 | 123 |
e.printStackTrace(); |
| 124 |
throw new IOException(e.getMessage()); |
|
| 117 | 125 |
} |
| 118 | 126 |
|
| 119 |
// Begin new transaction |
|
| 120 |
Transaction t = new DefaultTransaction("handle");
|
|
| 121 |
t.putProperty( "updating spatial cache", new Integer(7) ); |
|
| 122 |
String lockId = "SpatialDataset.delete"; |
|
| 127 |
if( geomType.equals("polygon") ) {
|
|
| 128 |
deleteFromDataStore(polygonStore, filter, docid); |
|
| 129 |
}else if( geomType.equals("point") ) {
|
|
| 130 |
deleteFromDataStore(pointStore, filter, docid); |
|
| 131 |
} |
|
| 132 |
else |
|
| 133 |
{
|
|
| 134 |
throw new IOException("Unkown Geo Type "+geomType);
|
|
| 135 |
} |
|
| 136 |
|
|
| 123 | 137 |
|
| 124 |
try {
|
|
| 125 |
|
|
| 126 |
boolean validGeomType = false; |
|
| 127 | 138 |
|
| 128 |
if( geomType.equals("polygon") ) {
|
|
| 129 |
dStore = new ShapefileDataStore( (new File( featureSchema.polygonShpUri )).toURL() ); |
|
| 130 |
fStore = (FeatureStore) dStore.getFeatureSource(dStore.getTypeNames()[0]); |
|
| 131 |
validGeomType = true; |
|
| 132 |
} else if( geomType.equals("point") ) {
|
|
| 133 |
dStore = new ShapefileDataStore( (new File( featureSchema.pointShpUri )).toURL() ); |
|
| 134 |
fStore = (FeatureStore) dStore.getFeatureSource(dStore.getTypeNames()[0]); |
|
| 135 |
validGeomType = true; |
|
| 136 |
} |
|
| 137 |
|
|
| 138 |
// Initiate the transaction |
|
| 139 |
fStore.setTransaction( t ); |
|
| 140 |
t.addAuthorization( lockId ); |
|
| 141 |
|
|
| 142 |
if( validGeomType == true) {
|
|
| 143 |
// Remove old feature |
|
| 144 |
fStore.removeFeatures( filter ); |
|
| 145 |
|
|
| 146 |
// Commit changes to shapefile |
|
| 147 |
t.commit(); |
|
| 148 |
log.info(" Delete docid " + docid + " from spatial cache");
|
|
| 149 |
} |
|
| 150 |
|
|
| 151 |
} catch (MalformedURLException e) {
|
|
| 152 |
e.printStackTrace(); |
|
| 153 |
t.rollback(); // cancel opperations |
|
| 154 |
} catch (IOException e) {
|
|
| 155 |
e.printStackTrace(); |
|
| 156 |
t.rollback(); // cancel opperations |
|
| 157 |
} finally {
|
|
| 158 |
// Close out the transaction |
|
| 159 |
t.close(); |
|
| 160 |
} |
|
| 161 |
|
|
| 162 | 139 |
} |
| 140 |
|
|
| 141 |
/* |
|
| 142 |
* Delete a feature from given spatail data store |
|
| 143 |
*/ |
|
| 144 |
private void deleteFromDataStore(ShapefileDataStore dStore, CompareFilter filter, String docid) |
|
| 145 |
throws IOException |
|
| 146 |
{
|
|
| 147 |
if (dStore != null && filter != null) |
|
| 148 |
{
|
|
| 149 |
synchronized(dStore) |
|
| 150 |
{
|
|
| 151 |
// Begin new transaction |
|
| 152 |
Transaction t = new DefaultTransaction("handle");
|
|
| 153 |
t.putProperty( "updating spatial cache", new Integer(7) ); |
|
| 154 |
String lockId = "SpatialDataset.delete"; |
|
| 155 |
FeatureStore fStore = (FeatureStore) dStore.getFeatureSource(dStore.getTypeNames()[0]); |
|
| 156 |
try {
|
|
| 157 |
|
|
| 158 |
if (fStore != null) |
|
| 159 |
{
|
|
| 160 |
// Initiate the transaction |
|
| 161 |
fStore.setTransaction( t ); |
|
| 162 |
t.addAuthorization( lockId ); |
|
| 163 |
|
|
| 164 |
// Remove old feature |
|
| 165 |
fStore.removeFeatures( filter ); |
|
| 166 |
|
|
| 167 |
// Commit changes to shapefile |
|
| 168 |
t.commit(); |
|
| 169 |
log.info(" Delete docid " + docid + " from spatial cache");
|
|
| 170 |
} |
|
| 171 |
else |
|
| 172 |
{
|
|
| 173 |
log.error("Feature store is null");
|
|
| 174 |
} |
|
| 175 |
|
|
| 176 |
|
|
| 177 |
} catch (MalformedURLException e) {
|
|
| 178 |
e.printStackTrace(); |
|
| 179 |
t.rollback(); // cancel opperations |
|
| 180 |
} catch (IOException e) {
|
|
| 181 |
e.printStackTrace(); |
|
| 182 |
t.rollback(); // cancel opperations |
|
| 183 |
} finally {
|
|
| 184 |
// Close out the transaction |
|
| 185 |
t.close(); |
|
| 186 |
} |
|
| 187 |
} |
|
| 188 |
} |
|
| 189 |
else if (dStore == null) |
|
| 190 |
{
|
|
| 191 |
log.error("Shape file store is null");
|
|
| 192 |
} |
|
| 193 |
} |
|
| 194 |
|
|
| 195 |
|
|
| 163 | 196 |
|
| 164 | 197 |
/** |
| 165 | 198 |
* Either inserts or updates the spatial cache with the new |
| ... | ... | |
| 189 | 222 |
filter.addRightValue(filterFactory.createLiteralExpression(docid)); |
| 190 | 223 |
} catch (IllegalFilterException e) {
|
| 191 | 224 |
e.printStackTrace(); |
| 225 |
throw new IOException(e.getMessage()); |
|
| 192 | 226 |
} |
| 193 | 227 |
|
| 194 |
// Begin new transaction |
|
| 195 |
Transaction t = new DefaultTransaction("handle");
|
|
| 196 |
t.putProperty( "updating spatial cache", new Integer(7) ); |
|
| 197 |
String lockId = "SpatialDataset.insertOrUpdate"; |
|
| 228 |
if( geomType.equals("polygon") ) {
|
|
| 229 |
|
|
| 230 |
insertOrUpdateDataStore(polygonStore,filter, feature, fColl, docid); |
|
| 231 |
} else if( geomType.equals("point") ) {
|
|
| 232 |
insertOrUpdateDataStore(pointStore,filter, feature, fColl, docid); |
|
| 233 |
}else{
|
|
| 234 |
throw new IOException("Unkown Geo Type "+geomType);
|
|
| 235 |
} |
|
| 198 | 236 |
|
| 199 |
try {
|
|
| 200 |
|
|
| 201 |
boolean validGeomType = false; |
|
| 202 | 237 |
|
| 203 |
if( geomType.equals("polygon") ) {
|
|
| 204 |
dStore = new ShapefileDataStore( (new File( featureSchema.polygonShpUri )).toURL() ); |
|
| 205 |
fStore = (FeatureStore) dStore.getFeatureSource(dStore.getTypeNames()[0]); |
|
| 206 |
validGeomType = true; |
|
| 207 |
} else if( geomType.equals("point") ) {
|
|
| 208 |
dStore = new ShapefileDataStore( (new File( featureSchema.pointShpUri )).toURL() ); |
|
| 209 |
fStore = (FeatureStore) dStore.getFeatureSource(dStore.getTypeNames()[0]); |
|
| 210 |
validGeomType = true; |
|
| 211 |
} |
|
| 238 |
|
|
| 212 | 239 |
|
| 213 |
// Initiate the transaction |
|
| 214 |
fStore.setTransaction( t ); |
|
| 215 |
t.addAuthorization( lockId ); |
|
| 216 |
|
|
| 217 |
if( feature != null && validGeomType == true) {
|
|
| 218 |
// Remove old feature |
|
| 219 |
fStore.removeFeatures( filter ); |
|
| 220 | 240 |
|
| 221 |
// Create new feature collection then add it to feature Store |
|
| 222 |
fColl.add( feature ); |
|
| 223 |
fStore.addFeatures(fColl); |
|
| 241 |
} |
|
| 242 |
|
|
| 243 |
/* |
|
| 244 |
* Insert or update new feature in shape file |
|
| 245 |
*/ |
|
| 246 |
private void insertOrUpdateDataStore(ShapefileDataStore dStore, CompareFilter filter, Feature feature, |
|
| 247 |
FeatureCollection fColl, String docid) throws IOException |
|
| 248 |
{
|
|
| 249 |
if (dStore != null && filter != null && feature != null && fColl != null) |
|
| 250 |
{
|
|
| 251 |
synchronized(dStore) |
|
| 252 |
{
|
|
| 253 |
// Begin new transaction |
|
| 254 |
Transaction t = new DefaultTransaction("handle");
|
|
| 255 |
t.putProperty( "updating spatial cache", new Integer(7) ); |
|
| 256 |
String lockId = "SpatialDataset.insertOrUpdate"; |
|
| 257 |
|
|
| 258 |
try {
|
|
| 259 |
FeatureStore fStore = (FeatureStore) dStore.getFeatureSource(dStore.getTypeNames()[0]); |
|
| 260 |
if( fStore != null) {
|
|
| 261 |
// Initiate the transaction |
|
| 262 |
fStore.setTransaction( t ); |
|
| 263 |
t.addAuthorization( lockId ); |
|
| 264 |
// Remove old feature |
|
| 265 |
fStore.removeFeatures( filter ); |
|
| 224 | 266 |
|
| 225 |
// Commit changes to shapefile |
|
| 226 |
t.commit(); |
|
| 227 |
log.info(" Insert or Update docid " + docid + " from spatial cache");
|
|
| 228 |
} |
|
| 267 |
// Create new feature collection then add it to feature Store |
|
| 268 |
fColl.add( feature ); |
|
| 269 |
fStore.addFeatures(fColl); |
|
| 229 | 270 |
|
| 271 |
// Commit changes to shapefile |
|
| 272 |
t.commit(); |
|
| 273 |
log.info(" Insert or Update docid " + docid + " from spatial cache");
|
|
| 274 |
} |
|
| 275 |
else |
|
| 276 |
{
|
|
| 277 |
log.error("Feature store is null");
|
|
| 278 |
} |
|
| 230 | 279 |
|
| 231 |
} catch (MalformedURLException e) {
|
|
| 232 |
e.printStackTrace(); |
|
| 233 |
t.rollback(); // cancel opperations |
|
| 234 |
} catch (IOException e) {
|
|
| 235 |
e.printStackTrace(); |
|
| 236 |
t.rollback(); // cancel opperations |
|
| 237 |
} finally {
|
|
| 238 |
// Close out the transaction |
|
| 239 |
t.close(); |
|
| 240 |
} |
|
| 241 | 280 |
|
| 281 |
} catch (MalformedURLException e) {
|
|
| 282 |
e.printStackTrace(); |
|
| 283 |
t.rollback(); // cancel opperations |
|
| 284 |
} catch (IOException e) {
|
|
| 285 |
e.printStackTrace(); |
|
| 286 |
t.rollback(); // cancel opperations |
|
| 287 |
} finally {
|
|
| 288 |
// Close out the transaction |
|
| 289 |
t.close(); |
|
| 290 |
} |
|
| 242 | 291 |
|
| 292 |
} |
|
| 293 |
} |
|
| 294 |
else if (dStore == null) |
|
| 295 |
{
|
|
| 296 |
log.error("Shape file store is null");
|
|
| 297 |
} |
|
| 243 | 298 |
} |
| 244 | 299 |
|
| 245 | 300 |
/** |
| ... | ... | |
| 248 | 303 |
public void save() {
|
| 249 | 304 |
// Save Polygons |
| 250 | 305 |
try {
|
| 251 |
URL anURL = (new File( featureSchema.polygonShpUri )).toURL(); |
|
| 252 |
ShapefileDataStore polygonDatastore = new ShapefileDataStore(anURL); |
|
| 253 |
FeatureType polygonType = featureSchema.getPolygonFeatureType(); |
|
| 254 |
polygonDatastore.createSchema( polygonType ); |
|
| 255 |
FeatureStore polygonFeatureStore = (FeatureStore) polygonDatastore.getFeatureSource( polygonType.getTypeName() ); |
|
| 256 |
polygonFeatureStore.addFeatures( polygonCollection ); |
|
| 257 |
log.info(" ---- Polygons saved to " + featureSchema.polygonShpUri );
|
|
| 306 |
//URL anURL = (new File( featureSchema.polygonShpUri )).toURL(); |
|
| 307 |
//ShapefileDataStore polygonDatastore = new ShapefileDataStore(anURL); |
|
| 308 |
if (polygonStore != null) |
|
| 309 |
{
|
|
| 310 |
|
|
| 311 |
synchronized(polygonStore) |
|
| 312 |
{
|
|
| 313 |
FeatureType polygonType = featureSchema.getPolygonFeatureType(); |
|
| 314 |
polygonStore.createSchema( polygonType ); |
|
| 315 |
FeatureStore polygonFeatureStore = (FeatureStore) polygonStore.getFeatureSource( polygonType.getTypeName() ); |
|
| 316 |
polygonFeatureStore.addFeatures( polygonCollection ); |
|
| 317 |
log.info(" ---- Polygons saved to " + featureSchema.polygonShpUri );
|
|
| 318 |
} |
|
| 319 |
} |
|
| 320 |
else |
|
| 321 |
{
|
|
| 322 |
log.error("Couldn't find the polygon shape file store");
|
|
| 323 |
} |
|
| 258 | 324 |
} catch(java.net.MalformedURLException e) {
|
| 259 | 325 |
log.error("Malformed URL Exception : "+e);
|
| 260 | 326 |
} catch(java.io.IOException e) {
|
| ... | ... | |
| 264 | 330 |
|
| 265 | 331 |
// Save Points |
| 266 | 332 |
try {
|
| 267 |
URL anURL = (new File( featureSchema.pointShpUri )).toURL(); |
|
| 268 |
ShapefileDataStore pointDatastore = new ShapefileDataStore(anURL); |
|
| 269 |
FeatureType pointsType = featureSchema.getPointFeatureType(); |
|
| 270 |
pointDatastore.createSchema( pointsType ); |
|
| 271 |
FeatureStore pointFeatureStore = (FeatureStore) pointDatastore.getFeatureSource( pointsType.getTypeName() ); |
|
| 272 |
pointFeatureStore.addFeatures( pointCollection ); |
|
| 273 |
log.info(" ---- Polygons saved to " + featureSchema.pointShpUri );
|
|
| 333 |
//URL anURL = (new File( featureSchema.pointShpUri )).toURL(); |
|
| 334 |
//ShapefileDataStore pointDatastore = new ShapefileDataStore(anURL); |
|
| 335 |
if (pointStore != null) |
|
| 336 |
{
|
|
| 337 |
synchronized(pointStore) |
|
| 338 |
{
|
|
| 339 |
FeatureType pointsType = featureSchema.getPointFeatureType(); |
|
| 340 |
pointStore.createSchema( pointsType ); |
|
| 341 |
FeatureStore pointFeatureStore = (FeatureStore) pointStore.getFeatureSource( pointsType.getTypeName() ); |
|
| 342 |
pointFeatureStore.addFeatures( pointCollection ); |
|
| 343 |
log.info(" ---- Polygons saved to " + featureSchema.pointShpUri );
|
|
| 344 |
} |
|
| 345 |
} |
|
| 346 |
else |
|
| 347 |
{
|
|
| 348 |
log.error("Couldn't find the shape point file store");
|
|
| 349 |
} |
|
| 274 | 350 |
} catch(java.net.MalformedURLException e) {
|
| 275 | 351 |
log.error("Malformed URL Exception : "+e);
|
| 276 | 352 |
} catch(java.io.IOException e) {
|
| 277 | 353 |
log.error("IO Exception : "+e);
|
| 278 | 354 |
} |
| 279 | 355 |
} |
| 356 |
|
|
| 357 |
|
|
| 280 | 358 |
|
| 281 | 359 |
} |
Also available in: Unified diff
Change the shape file store object to be static and make them synchronized in order to be thread safe.