Examples of org.geotools.feature.FeatureCollection.features()

Class org.geotools.feature.FeatureCollection

Examples of org.geotools.feature.FeatureCollection.features()

org.geotools.feature.FeatureCollection.features()
Obtain a FeatureIterator
of the Features within this FeatureCollection.
The implementation of FeatureIterator must adhere to the rules of fail-fast concurrent modification. In addition (to allow for resource backed collections) the FeatureIterator.close() method must be called.
Example use:
```
 FeatureIterator iterator=collection.features(); try { while( iterator.hasNext()  ){ Feature feature = iterator.next(); System.out.println( feature.getID() ); } } finally { iterator.close(); } 
```
GML Note: The contents of this iterator are considered to be defined by featureMember tags (and/or the single allowed FeatureMembers tag). Please see getFeatureType for more details.
@return A FeatureIterator.

        FeatureCollectionType fct = (FeatureCollectionType) p.parse(new ByteArrayInputStream(
                response.getOutputStreamContent().getBytes()));
        FeatureCollection fc = (FeatureCollection) fct.getFeature().get(0);


        assertEquals(1, fc.size());
        SimpleFeature sf = (SimpleFeature) fc.features().next();
        Geometry simplified = ((Geometry) sf.getDefaultGeometry());
        assertTrue(new Envelope(-92, -87, 37, 43).contains(simplified.getEnvelopeInternal()));
        // should have been simplified to a 4 side polygon
        assertEquals(5, simplified.getCoordinates().length);
    }

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            // execute should also fail if all of the locks could not be aquired
            List<FeatureCollection> resultsList = featureCollection.getFeature();
            CoordinateReferenceSystem crs = null;
            for (int i = 0; i < resultsList.size(); i++) {
                FeatureCollection collection = resultsList.get(i);
                FeatureIterator iterator = collection.features();


                
                try {
                    SimpleFeatureType fType;
                    List<AttributeDescriptor> types;

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        q.setMaxFeatures(1);
        FeatureCollection features = fs.getFeatures(q);
        FeatureIterator fi = null;
        Feature sample = null;
        try {
            fi = features.features();
            sample = fi.next();
        } finally {
            fi.close();
        }
        return sample;

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    public void testReadAllRecords() throws IOException {
        FeatureCollection records = store.getRecords(Query.ALL, Transaction.AUTO_COMMIT);
        int fileCount = root.list(new RegexFileFilter("Record_.*\\.xml")).length;
        assertEquals(fileCount, records.size());
        
        FeatureIterator<Feature> fi = records.features();
        try {
            while(fi.hasNext()) {
                Feature f = fi.next();
                
                // check the id has be read and matches the expected format (given what we have in the files)

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        Filter filter = wms.getTimeElevationToFilter(times, elevations, timeWithStartEnd);
        FeatureCollection features = fs.getFeatures(filter);
        
        Set<Integer> results = new HashSet<Integer>();
        FeatureIterator it = features.features();
        while (it.hasNext()) {
            results.add( (Integer) it.next().getProperty("id").getValue());
        }
        assertTrue("expected " + Arrays.toString(expectedIds) + " but got " + results,
                results.containsAll(Arrays.asList(expectedIds)));

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    public void testReadOnly() throws Exception {
        SecuredFeatureStore ro = new SecuredFeatureStore(store, WrapperPolicy.readOnlyHide(null));
        
        // let's check the iterator, should allow read but not remove
        FeatureCollection rofc = ro.getFeatures();
        FeatureIterator roit = rofc.features();
        roit.hasNext();
        roit.next();
    
        // check derived collections are still read only and share the same
        // challenge policy

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                fail("Should have failed with a security exception");
        }


        // let's check the iterator, should allow read but not remove
        FeatureCollection rofc = ro.getFeatures();
        FeatureIterator roit = rofc.features();
        roit.hasNext();
        roit.next();


        // check derived collections are still read only and share the same
        // challenge policy

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        FeatureTypeInfo fti = getCatalog().getFeatureTypeByName(MockData.BASIC_POLYGONS.getLocalPart());
        assertEquals("EPSG:4269", fti.getSRS());
        assertEquals(ProjectionPolicy.FORCE_DECLARED, fti.getProjectionPolicy());
        FeatureCollection fc = fti.getFeatureSource(null, null).getFeatures();
        assertEquals(CRS.decode("EPSG:4269"), fc.getSchema().getCoordinateReferenceSystem());
        FeatureIterator fi = fc.features();
        Feature f = fi.next();
        fi.close();
        assertEquals(CRS.decode("EPSG:4269"), f.getType().getCoordinateReferenceSystem());
    }

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        FeatureTypeInfo fti = getCatalog().getFeatureTypeByName(MockData.POLYGONS.getLocalPart());
        assertEquals("EPSG:4326", fti.getSRS());
        assertEquals(ProjectionPolicy.REPROJECT_TO_DECLARED, fti.getProjectionPolicy());
        FeatureCollection fc = fti.getFeatureSource(null, null).getFeatures();
        assertEquals(CRS.decode("EPSG:4326"), fc.getSchema().getCoordinateReferenceSystem());
        FeatureIterator fi = fc.features();
        Feature f = fi.next();
        
        //test that geometry was actually reprojected
        Geometry g = (Geometry) f.getDefaultGeometryProperty().getValue();
        assertFalse(g.equalsExact(WKT.read(

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        FeatureTypeInfo fti = getCatalog().getFeatureTypeByName(MockData.LINES.getLocalPart());
        assertEquals("EPSG:3004", fti.getSRS());
        assertEquals(ProjectionPolicy.NONE, fti.getProjectionPolicy());
        FeatureCollection fc = fti.getFeatureSource(null, null).getFeatures();
        assertEquals(CRS.decode("EPSG:32615"), fc.getSchema().getCoordinateReferenceSystem());
        FeatureIterator fi = fc.features();
        Feature f = fi.next();
        
        //test that the geometry was left in tact
        Geometry g = (Geometry) f.getDefaultGeometryProperty().getValue();
        assertTrue(g.equalsExact(WKT.read("LINESTRING(500125 500025,500175 500075)")));

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