Examples of org.geotools.data.simple.SimpleFeatureCollection

org.geotools.data.simple.SimpleFeatureCollection
Access to "simple" Feature content where each feature has the same SimpleFeatureType.
Please keep in mind that a SimpleFeatureCollection is similar to a result set; and may not necessarily load everything in to memory. Treat each iterator as a forward only cursor in the JDBC sense; and take care to FeatureIterator.close() after use.
SimpleFeatureIterator close

SimpleFeatureCollection provides streaming access with the following restrictions on use of {@link SimpleFeatureIterator}: You must call {@link SimpleFeatureIterator#close()}. This allows FeatureCollection to clean up any operating system resources used to access information.

Example (safe) use:
```
 SimpleFeatureIterator iterator = simpleFeatureCollection.features(); try { while( iterator.hasNext() ){ SimpleFeature feature = iterator.next(); System.out.println( feature.getID() ); } } finally { iterator.close(); } 
```
And in Java 7:
```
 try ( SimpleFeatureIterator iterator = simpleFeatureCollection.features() ){ while( iterator.hasNext() ){ SimpleFeature feature = iterator.next(); System.out.println( feature.getID() ); } } 
```
@source $URL$

     * @param request
     * @return
     */
    private GetFeatureType toGetFeatureType(FeatureCollectionType featureCollection,
            GetLogType request) {
        SimpleFeatureCollection features = (SimpleFeatureCollection) featureCollection.getFeature().get(0);
        SimpleFeatureType featureType = features.getSchema();
        GetFeatureType ftRequest = WfsFactory.eINSTANCE.createGetFeatureType();
        QueryType query = WfsFactory.eINSTANCE.createQueryType();
        query.setTypeName(Collections.singletonList(featureType.getTypeName()));
        ftRequest.getQuery().add(query);
        ftRequest.setBaseUrl(request.getBaseUrl());

View Full Code Here

    }


    public void write(Object value, OutputStream output, Operation operation)
        throws IOException, ServiceException {
        FeatureCollectionType fct = (FeatureCollectionType) value;
        SimpleFeatureCollection fc = (SimpleFeatureCollection) fct.getFeature().get(0);


        // setup template subsystem
        GeoServerTemplateLoader templateLoader = new GeoServerTemplateLoader(getClass());
        templateLoader.setFeatureType(fc.getSchema());


        Template template = null;


        synchronized (templateConfig) {
            templateConfig.setTemplateLoader(templateLoader);

View Full Code Here


        // round up the info objects for each feature collection
        HashMap /* <String,Set> */ns2metas = new HashMap();


        for (Iterator fc = featureCollections.iterator(); fc.hasNext();) {
            SimpleFeatureCollection features = (SimpleFeatureCollection) fc.next();
            SimpleFeatureType featureType = features.getSchema();


            // load the metadata for the feature type
            String namespaceURI = featureType.getName().getNamespaceURI();
            FeatureTypeInfo meta = catalog.getFeatureTypeByName(namespaceURI, featureType.getTypeName() );

View Full Code Here

        final EObject originatingTransactionRequest = (EObject) source;


        Assert.notNull(originatingTransactionRequest);


        final TransactionEventType type = event.getType();
        final SimpleFeatureCollection affectedFeatures = event.getAffectedFeatures();


        if (isIgnorablePostEvent(originatingTransactionRequest, type)) {
            // if its a post event and there's no corresponding pre event bbox no need to
            // proceed(Saves some cpu cycles and a catalog lookup for findAffectedCachedLayers).
            return;
        }


        final Set<String> affectedLayers = findAffectedCachedLayers(event);
        if (affectedLayers.isEmpty()) {
            // event didn't touch a cached layer
            return;
        }


        if (PRE_INSERT == type || PRE_UPDATE == type || PRE_DELETE == type) {
            ReferencedEnvelope preBounds = affectedFeatures.getBounds();


            this.affectedLayers.put(originatingTransactionRequest, affectedLayers);
            this.affectedBounds.put(originatingTransactionRequest, preBounds);


        } else if (POST_UPDATE == type && affectedFeatures != null) {


            final ReferencedEnvelope bounds = affectedBounds.get(originatingTransactionRequest);


            // only truncate if the request didn't fail
            ReferencedEnvelope postBounds = affectedFeatures.getBounds();
            Assert.isTrue(bounds.getCoordinateReferenceSystem().equals(
                    postBounds.getCoordinateReferenceSystem()));
            bounds.expandToInclude(postBounds);


        } else {

View Full Code Here

    private static final SimpleFeatureType contourSchema = makeContourSchema();


    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public Response getGeoJsonIsochrone() throws Exception {
        SimpleFeatureCollection contourFeatures = makeContourFeatures(computeIsochrone());
        StringWriter writer = new StringWriter();
        FeatureJSON fj = new FeatureJSON();
        fj.writeFeatureCollection(contourFeatures, writer);
        CacheControl cc = new CacheControl();
        cc.setMaxAge(3600);

View Full Code Here


    @GET
    @Produces("application/x-zip-compressed")
    public Response getZippedShapefileIsochrone(@QueryParam("shpName") String shpName,
            @QueryParam("stream") @DefaultValue("true") boolean stream) throws Exception {
        SimpleFeatureCollection contourFeatures = makeContourFeatures(computeIsochrone());
        /* Output the staged features to Shapefile */
        final File shapeDir = Files.createTempDir();
        File shapeFile = new File(shapeDir, shpName + ".shp");
        LOG.debug("writing out shapefile {}", shapeFile);
        ShapefileDataStore outStore = new ShapefileDataStore(shapeFile.toURI().toURL());

View Full Code Here

        CoordinateReferenceSystem WGS84 = CRS.decode("EPSG:4326", true);
        
        Query query = new Query();
        query.setCoordinateSystem(sourceCRS);
        query.setCoordinateSystemReproject(WGS84);
        SimpleFeatureCollection featureCollection = featureSource.getFeatures(query);
        
        SimpleFeatureIterator it = featureCollection.features();
        
        PointSet ret = new PointSet(featureCollection.size());
        int i=0;
        while (it.hasNext()) {
            SimpleFeature feature = it.next();
            Geometry geom = (Geometry) feature.getDefaultGeometry();

View Full Code Here


    /** @return Evenly spaced travel time contours (isochrones) as GeoJSON. */
    @GET @Produces("application/json")
    public Response geoJsonGet() throws Exception { 
        /* QGIS seems to want multi-features rather than multi-geometries. */
        SimpleFeatureCollection contourFeatures = makeContourFeatures();
        /* Output the staged features to JSON */
        StringWriter writer = new StringWriter();
        FeatureJSON fj = new FeatureJSON();
        fj.writeFeatureCollection(contourFeatures, writer);
        return Response.ok().entity(writer.toString()).build();

View Full Code Here

    /** @return Evenly spaced travel time contours (isochrones) as a zipped shapefile. */
    @GET @Produces("application/x-zip-compressed")
    public Response zippedShapefileGet(
            @QueryParam("stream") @DefaultValue("true") boolean stream) 
            throws Exception {
        SimpleFeatureCollection contourFeatures = makeContourFeatures(); 
        /* Output the staged features to Shapefile */
        final File shapeDir = Files.createTempDir();
        File shapeFile = new File(shapeDir, shpName + ".shp");
        LOG.debug("writing out shapefile {}", shapeFile);
        ShapefileDataStore outStore = new ShapefileDataStore(shapeFile.toURI().toURL());

View Full Code Here

            CoordinateReferenceSystem WGS84 = CRS.decode("EPSG:4326", true);


            Query query = new Query();
            query.setCoordinateSystem(sourceCRS);
            query.setCoordinateSystemReproject(WGS84);
            SimpleFeatureCollection featureCollection = featureSource.getFeatures(query);


            SimpleFeatureIterator it = featureCollection.features();
            int i = 0;
            while (it.hasNext()) {
                SimpleFeature feature = it.next();
                Geometry geom = (Geometry) feature.getDefaultGeometry();
                Point point = null;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.geotools.data.simple.SimpleFeatureCollection

it.geosolutions.geobatch.unredd.script.util.PostGISUtils

org.geoserver.kml.KMLVectorTransformerTest

org.geoserver.wfs.response.ShapeZipOutputFormat

org.geoserver.wms.featureinfo.FeatureTemplateTest

org.geoserver.wps.gs.BufferFeatureCollectionTest

org.geoserver.wps.gs.ContourProcessTest

org.geotools.arcsde.data.ArcSDEDataStoreNonSpatialTest

org.geotools.arcsde.data.ArcSDEFeatureSourceTest

org.geotools.arcsde.data.ArcSDEFeatureStoreTest

org.geotools.arcsde.data.ArcSDEFeatureStoreVersionedTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of org.geotools.data.simple.SimpleFeatureCollection

SimpleFeatureIterator close

Related Classes of org.geotools.data.simple.SimpleFeatureCollection