Examples of org.geotools.data.simple.SimpleFeatureCollection.features()

Class org.geotools.data.simple.SimpleFeatureCollection

Examples of org.geotools.data.simple.SimpleFeatureCollection.features()

org.geotools.data.simple.SimpleFeatureCollection.features()
Obtain a SimpleFeatureIterator of the Features within this SimpleFeatureCollection.
The implementation of FeatureIterator must adhere to the rules of fail-fast concurrent modification. In addition (to allow for resource backed collections) the SimpleFeatureIterator.close() method must be called.
Example use:
```
 SimpleFeatureIterator iterator=collection.features(); try { while( iterator.hasNext()  ){ SimpleFeature feature = iterator.next(); System.out.println( feature.getID() ); } } finally { iterator.close(); } 
```


        SimpleFeature feature;
        Geometry geom;
        Property prop;
        GeometryType geomType;
        SimpleFeatureIterator iterator = features.features();
        while (iterator.hasNext()) {
            feature = iterator.next();
            prop = feature.getProperty("geom");
            assertTrue(prop.getType() instanceof GeometryType);
            geomType = (GeometryType) prop.getType();

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        SimpleFeatureCollection features = source.getFeatures(filter);


        double totalX = 0.0;
        double totalY = 0.0;
        long count = 0;
        SimpleFeatureIterator iterator = features.features();
        try {
            while (iterator.hasNext()) {
                SimpleFeature feature = iterator.next();
                Geometry geom = (Geometry) feature.getDefaultGeometry();
                Point centroid = geom.getCentroid();

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         */
        try {
            SimpleFeatureCollection selectedFeatures =
                    featureSource.getFeatures(filter);


            SimpleFeatureIterator iter = selectedFeatures.features();
            Set<FeatureId> IDs = new HashSet<FeatureId>();
            try {
                while (iter.hasNext()) {
                    SimpleFeature feature = iter.next();
                    IDs.add(feature.getIdentifier());

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        // carefully open an iterator and writer to process the results
        Transaction transaction = new DefaultTransaction("Reproject");
        FeatureWriter<SimpleFeatureType, SimpleFeature> writer =
                        dataStore.getFeatureWriterAppend(featureType.getTypeName(), transaction);
        SimpleFeatureIterator iterator = featureCollection.features();
        try {
            while (iterator.hasNext()) {
                // copy the contents of each feature and transform the geometry
                SimpleFeature feature = iterator.next();
                SimpleFeature copy = writer.next();

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            SimpleFeatureCollection filteredCollection = fs.getFeatures(filter);
            assertTrue(filteredCollection.size() > 0);


            String filterInfo = "Filter \"" + filter.toString() + "\" contains "
                + filteredCollection.size() + " element(s) (";
            SimpleFeatureIterator it = filteredCollection.features();


            while (it.hasNext()) {
                SimpleFeature feature = (SimpleFeature) it.next();
                filterInfo += ("'" + feature.getAttribute(attribName) + "'");

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            FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
            Query q = new Query(Query.ALL);
            q.setSortBy(new SortBy[] {ff.sort("time", SortOrder.ASCENDING)});
            SimpleFeatureCollection granules = source.getGranules(q);
            assertEquals(2, granules.size());
            it = granules.features();
            assertTrue(it.hasNext());
            SimpleFeature f = it.next();
            assertEquals("polyphemus_20130301_test.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-03-01T00:00:00.000Z", ConvertersHack.convert(f.getAttribute("time"), String.class));

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            assertEquals(1, reader.getGridCoverageNames().length);
            
            // check that we have four times now
            granules = source.getGranules(q);
            assertEquals(4, granules.size());
            it = granules.features();
            f = it.next();
            assertEquals("polyphemus_20130301_test.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-03-01T00:00:00.000Z", ConvertersHack.convert(f.getAttribute("time"), String.class));
            assertTrue(it.hasNext());

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            FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
            Query q = new Query(Query.ALL);
            q.setSortBy(new SortBy[] {ff.sort("time", SortOrder.ASCENDING)});
            SimpleFeatureCollection granules = source.getGranules(q);
            assertEquals(2, granules.size());
            it = granules.features();
            assertTrue(it.hasNext());
            SimpleFeature f = it.next();
            assertEquals("polyphemus_20130301_test.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-03-01T00:00:00.000Z", ConvertersHack.convert(f.getAttribute("time"), String.class));

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            // check that we have four times now
            source = reader.getGranules("O3", true);
            granules = source.getGranules(q);
            assertEquals(4, granules.size());
            it = granules.features();
            f = it.next();
            assertEquals("polyphemus_20130301_test.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-03-01T00:00:00.000Z", ConvertersHack.convert(f.getAttribute("time"), String.class));
            assertTrue(it.hasNext());

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            FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
            Query q = new Query(Query.ALL);
            q.setSortBy(new SortBy[] {ff.sort("time", SortOrder.ASCENDING)});
            SimpleFeatureCollection granules = source.getGranules(q);
            assertEquals(2, granules.size());
            it = granules.features();
            assertTrue(it.hasNext());
            SimpleFeature f = it.next();
            assertEquals("polyphemus_20130301_test.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-03-01T00:00:00.000Z", ConvertersHack.convert(f.getAttribute("time"), String.class));

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