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.

                                } else if (obj instanceof Collection) {
                                    Collection collection = (Collection) obj;
                                    iterator = collection.iterator();
                                } else if (obj instanceof FeatureCollection) {
                                    FeatureCollection collection = (FeatureCollection) obj;
                                    iterator = DataUtilities.iterator( collection.features() );
                                } else {
                                    iterator = new SingleIterator(obj);
                                }


                                entry.children.add(new Object[] { child, iterator, obj });

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        assertTrue( o instanceof FeatureCollection );
        
        FeatureCollection features = (FeatureCollection) o;
        assertEquals( 3, features.size() );
        
        FeatureIterator fi = features.features();
        try {
            for ( int i = 0; i < 3; i++ ) {
                assertTrue( fi.hasNext() );
                
                SimpleFeature f = (SimpleFeature) fi.next();

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        SimpleFeatureCollection origional = source.getFeatures();
        Point point = geometryFactory.createPoint(new Coordinate(1.0, 0.0));


        FeatureCollection result = process.execute(origional, "from_lrs", "to_lrs", point, null);
        Assert.assertEquals(1, result.size());
        Feature feature = result.features().next();
        Assert.assertNotNull(feature.getProperty("lrs_measure"));
        Assert.assertNotNull(feature.getProperty("lrs_measure").getValue());
        Double measure = (Double) feature.getProperty("lrs_measure").getValue();
        Assert.assertEquals(1.0, measure, 0.0);
    }

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        Object[] prop = new Object[2];
        prop[0] = KML.Placemark;
        if ( object instanceof FeatureCollection ) {
            FeatureCollection fc = (FeatureCollection) object;
            //TODO: this does not close the iterator!!
            Iterator iterator = DataUtilities.iterator( fc.features() );
            
            prop[1] = iterator;
        }
        else if ( object instanceof Collection ) {
            prop[1] = ((Collection)object).iterator();

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        GeometryJSON gjson = new GeometryJSON();
        OutputStream out = System.out;/*new NullOutputStream();*/
        Writer writer = new OutputStreamWriter(out);
        
        FeatureCollection features = data.getFeatures();
        FeatureIterator it = features.features();


        long t1 = System.currentTimeMillis();
        while(it.hasNext()) {
            SimpleFeature f = (SimpleFeature) it.next();
            gjson.write((Geometry) f.getDefaultGeometry(), writer);

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        FeatureCollection expected = collection();
        assertEquals(expected.size(), actual.size());
        
        FeatureIterator a = actual.features();
        FeatureIterator e = expected.features();
        
        while(e.hasNext()) {
            assertTrue(a.hasNext());
            assertEqualsLax((SimpleFeature)e.next(), (SimpleFeature) a.next());
        }

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    void testFeatureCollectionStream(boolean withBounds, boolean withCRS) throws Exception {
        FeatureIterator<SimpleFeature> features = 
            fjson.streamFeatureCollection(reader(strip(collectionText(withBounds, withCRS))));
        
        FeatureCollection expected = collection();
        FeatureIterator e = expected.features();
        
        while(e.hasNext()) {
            features.hasNext(); //ensure that hasNext() does not skip features
            assertTrue(features.hasNext());
            assertEqualsLax((SimpleFeature)e.next(), features.next());

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    public void testFeatureCollectionWithCRSRead() throws Exception {
        String json = collectionText(true, true);
        FeatureCollection fcol = fjson.readFeatureCollection(strip(collectionText(true, true)));
        assertNotNull(fcol.getSchema().getCoordinateReferenceSystem());


        FeatureIterator it = fcol.features();
        while(it.hasNext()) {
            assertNotNull(it.next().getType().getCoordinateReferenceSystem());
        }
    }

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    public void testFeatureCollectionWithCRSPostFeaturesRead() throws Exception {
        String json = collectionText(true, true);
        FeatureCollection fcol = fjson.readFeatureCollection(strip(collectionText(true, true, true, false, false)));
        assertNotNull(fcol.getSchema().getCoordinateReferenceSystem());


        FeatureIterator it = fcol.features();
        while(it.hasNext()) {
            assertNotNull(it.next().getType().getCoordinateReferenceSystem());
        }
    }

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            "     'properties' : { 'name' : 'Station' }" +
            "  }]," + 
            "  'type' : 'FeatureCollection'" +
            "}");
        FeatureCollection fcol = fjson.readFeatureCollection(json);
        FeatureIterator it = fcol.features();
        assertTrue(it.hasNext());


        SimpleFeature f = (SimpleFeature) it.next();
        assertTrue(new WKTReader().read("POINT (17.633333 59.85)").equals((Geometry)f.getDefaultGeometry()));
        assertEquals("Station", f.getAttribute("name"));

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