org.geotools.data.Query Java Examples

The following examples show how to use org.geotools.data.Query. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: DecimationProcess.java From geowave with Apache License 2.0

6 votes

public Query invertQuery(
    @DescribeParameter(
        name = "outputBBOX",
        description = "Georeferenced bounding box of the output") final ReferencedEnvelope argOutputEnv,
    @DescribeParameter(
        name = "outputWidth",
        description = "Width of the output raster") final Integer argOutputWidth,
    @DescribeParameter(
        name = "outputHeight",
        description = "Height of the output raster") final Integer argOutputHeight,
    @DescribeParameter(
        name = "pixelSize",
        description = "The pixel size to decimate by") final Double pixelSize,
    final Query targetQuery,
    final GridGeometry targetGridGeometry) throws ProcessException {

  // add to the query hints
  targetQuery.getHints().put(OUTPUT_WIDTH, argOutputWidth);
  targetQuery.getHints().put(OUTPUT_HEIGHT, argOutputHeight);
  targetQuery.getHints().put(OUTPUT_BBOX, argOutputEnv);
  if (pixelSize != null) {
    targetQuery.getHints().put(PIXEL_SIZE, pixelSize);
  }
  return targetQuery;
}

Example #2

Source File: GeoWaveFeatureSourceTest.java From geowave with Apache License 2.0

6 votes

public void testPartial(final Populater populater, final String ext)
    throws CQLException, Exception {
  final String typeName = "GeoWaveFeatureSourceTest_p" + ext;
  final SimpleFeatureType type =
      DataUtilities.createType(
          typeName,
          "geometry:Geometry:srid=4326,pop:java.lang.Long,pid:String,when:Date");
  final DataStore dataStore = createDataStore();
  populater.populate(type, dataStore);
  final SimpleFeatureSource source = dataStore.getFeatureSource(typeName);

  final Query query =
      new Query(
          typeName,
          CQL.toFilter(
              "BBOX(geometry,42,28,44,30) and when during 2005-05-01T20:32:56Z/2005-05-29T21:32:56Z"),
          new String[] {"geometry", "when", "pid"});
  final ReferencedEnvelope env = source.getBounds(query);
  assertEquals(43.454, env.getMaxX(), 0.0001);
  assertEquals(28.232, env.getMinY(), 0.0001);
  assertEquals(28.242, env.getMaxY(), 0.0001);
  assertEquals(2, source.getCount(query));
}

Example #3

Source File: ElasticViewParametersFilterIT.java From elasticgeo with GNU General Public License v3.0

6 votes

@Test
public void testNativeTermQuery() throws Exception {
    init("not-active");
    Map<String, String> vparams = new HashMap<>();
    Map<String,Object> query = ImmutableMap.of("term", ImmutableMap.of("security_ss", "WPA"));
    vparams.put("q", mapper.writeValueAsString(query));
    Hints hints = new Hints(Hints.VIRTUAL_TABLE_PARAMETERS, vparams);
    Query q = new Query(featureSource.getSchema().getTypeName());
    q.setHints(hints);
    FilterFactory ff = dataStore.getFilterFactory();
    PropertyIsEqualTo filter = ff.equals(ff.property("speed_is"), ff.literal("300"));
    q.setFilter(filter);
    ContentFeatureCollection features = featureSource.getFeatures(q);
    assertEquals(1, features.size());
    SimpleFeatureIterator fsi = features.features();
    assertTrue(fsi.hasNext());
    assertEquals(fsi.next().getID(), "active.12");
}

Example #4

Source File: ExtractGeometryFilterVisitorTest.java From geowave with Apache License 2.0

6 votes

@Test
public void testIntesectAndCrossesAndLike()
    throws CQLException, TransformException, ParseException {

  // we are testing to see if we are able to combine dissimilar geometric
  // relations correctly
  // to extract query geometry. Note, that returned predicate is null
  // since we can't represent
  // CQL expression fully into single query geometry and predicate
  final Filter filter =
      CQL.toFilter(
          String.format(
              "CROSSES(%s, POLYGON((0 0, 0 25, 10 25, 10 0, 0 0))) AND location == 'abc'",
              geomAttributeName));
  final Query query = new Query("type", filter);

  final ExtractGeometryFilterVisitorResult result =
      (ExtractGeometryFilterVisitorResult) query.getFilter().accept(visitorWithDescriptor, null);

  final Envelope bounds = new Envelope(0, 10, 0, 25);
  final Geometry bbox = new GeometryFactory().toGeometry(bounds);

  assertTrue(bbox.equalsTopo(result.getGeometry()));
  assertTrue(result.getCompareOp() == null);
}

Example #5

Source File: GeoWaveFeatureReaderTest.java From geowave with Apache License 2.0

6 votes

@Test
public void testBBOX() throws IllegalArgumentException, NoSuchElementException, IOException {
  final FilterFactoryImpl factory = new FilterFactoryImpl();
  final Query query =
      new Query(
          "GeoWaveFeatureReaderTest",
          factory.bbox("geometry", -180, -90, 180, 90, "EPSG:4326"),
          new String[] {"geometry", "pid"});

  final FeatureReader<SimpleFeatureType, SimpleFeature> reader =
      dataStore.getFeatureReader(query, Transaction.AUTO_COMMIT);
  int count = 0;
  while (reader.hasNext()) {
    final SimpleFeature feature = reader.next();
    assertTrue(fids.contains(feature.getID()));
    count++;
  }
  assertTrue(count > 0);
}

Example #6

Source File: GeoToolsLayer.java From geomajas-project-server with GNU Affero General Public License v3.0

6 votes

/**
 * {@inheritDoc}
 *
 */
@Transactional(readOnly = true)
public Iterator<?> getElements(Filter filter, int offset, int maxResultSize) throws LayerException {
	FeatureSource<SimpleFeatureType, SimpleFeature> source = getFeatureSource();
	try {
		if (source instanceof FeatureStore<?, ?>) {
			SimpleFeatureStore store = (SimpleFeatureStore) source;
			transactionSynchronization.synchTransaction(store);
		}
		Query query = new Query();
		query.setFilter(filter);
		query.setMaxFeatures(maxResultSize > 0 ? maxResultSize : Integer.MAX_VALUE);
		query.setStartIndex(offset);
		FeatureCollection<SimpleFeatureType, SimpleFeature> fc = source.getFeatures(query);
		FeatureIterator<SimpleFeature> it = fc.features();
		transactionSynchronization.addIterator(it);
		return new JavaIterator(it);
	} catch (Throwable t) { // NOSONAR avoid errors (like NPE) as well
		throw new LayerException(t, ExceptionCode.UNEXPECTED_PROBLEM);
	}
}

Example #7