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SpatialProceduresTest.java
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/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j Spatial.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.gis.spatial.procedures;
import static org.assertj.core.api.Assertions.entry;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.anyOf;
import static org.hamcrest.Matchers.closeTo;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.hasKey;
import static org.hamcrest.Matchers.not;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertInstanceOf;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import static org.junit.jupiter.params.provider.Arguments.arguments;
import static org.neo4j.gis.spatial.Constants.LABEL_LAYER;
import static org.neo4j.gis.spatial.Constants.PROP_GEOMENCODER;
import static org.neo4j.gis.spatial.Constants.PROP_GEOMENCODER_CONFIG;
import static org.neo4j.gis.spatial.Constants.PROP_LAYER;
import static org.neo4j.gis.spatial.Constants.PROP_LAYER_CLASS;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;
import java.util.stream.Stream;
import org.assertj.core.api.Assertions;
import org.hamcrest.MatcherAssert;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.neo4j.doc.domain.examples.Example;
import org.neo4j.doc.domain.examples.ExampleCypher;
import org.neo4j.exceptions.KernelException;
import org.neo4j.gis.spatial.AbstractApiTest;
import org.neo4j.gis.spatial.Layer;
import org.neo4j.gis.spatial.SpatialDatabaseService;
import org.neo4j.gis.spatial.SpatialRelationshipTypes;
import org.neo4j.gis.spatial.functions.SpatialFunctions;
import org.neo4j.gis.spatial.index.IndexManager;
import org.neo4j.gis.spatial.utilities.ReferenceNodes;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.QueryExecutionException;
import org.neo4j.graphdb.Result;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.spatial.Geometry;
import org.neo4j.graphdb.spatial.Point;
import org.neo4j.kernel.api.KernelTransaction;
import org.neo4j.kernel.api.procedure.GlobalProcedures;
import org.neo4j.kernel.impl.coreapi.InternalTransaction;
import org.neo4j.kernel.internal.GraphDatabaseAPI;
public class SpatialProceduresTest extends AbstractApiTest {
@Override
protected void registerApiProceduresAndFunctions() throws KernelException {
registerProceduresAndFunctions(SpatialProcedures.class);
registerProceduresAndFunctions(SpatialFunctions.class);
}
public static void testCall(GraphDatabaseService db, String call, Consumer<Map<String, Object>> consumer) {
testCall(db, call, null, consumer);
}
public static void testCall(GraphDatabaseService db, String call, Map<String, Object> params,
Consumer<Map<String, Object>> consumer) {
testCall(db, call, params, consumer, true);
}
public static void testCallFails(GraphDatabaseService db, String call, Map<String, Object> params, String error) {
try {
testResult(db, call, params, (res) -> {
while (res.hasNext()) {
res.next();
}
});
fail("Expected an exception containing '" + error + "', but no exception was thrown");
} catch (Exception e) {
assertTrue(e.getMessage().contains(error));
}
}
public static void testCall(GraphDatabaseService db, String call, Map<String, Object> params,
Consumer<Map<String, Object>> consumer, boolean onlyOne) {
testResult(db, call, params, (res) -> {
assertTrue(res.hasNext(), "Expect at least one result but got none: " + call);
Map<String, Object> row = res.next();
consumer.accept(row);
if (onlyOne) {
assertFalse(res.hasNext(), "Expected only one result, but there are more");
}
});
}
public static void testCallCount(GraphDatabaseService db, String call, Map<String, Object> params, int count) {
testResult(db, call, params, (res) -> {
int numLeft = count;
while (numLeft > 0) {
assertTrue(res.hasNext(),
"Expected " + count + " results but found only " + (count - numLeft));
res.next();
numLeft--;
}
assertFalse(res.hasNext(), "Expected " + count + " results but there are more");
});
}
public static void testResult(GraphDatabaseService db, String call, Consumer<Result> resultConsumer) {
testResult(db, call, null, resultConsumer);
}
public static void testResult(GraphDatabaseService db, String call, Map<String, Object> params,
Consumer<Result> resultConsumer) {
try (Transaction tx = db.beginTx()) {
Map<String, Object> p = (params == null) ? Map.of() : params;
resultConsumer.accept(tx.execute(call, p));
tx.commit();
}
}
public static void registerProceduresAndFunctions(GraphDatabaseService db, Class<?> procedure)
throws KernelException {
GlobalProcedures procedures = ((GraphDatabaseAPI) db).getDependencyResolver()
.resolveDependency(GlobalProcedures.class);
procedures.registerProcedure(procedure);
procedures.registerFunction(procedure);
}
private static Layer makeLayerOfVariousTypes(SpatialDatabaseService spatial, Transaction tx, String name,
int index) {
return switch (index % 3) {
case 0 -> spatial.getOrCreateSimplePointLayer(tx, name, SpatialDatabaseService.INDEX_TYPE_RTREE, "x", "y",
null);
case 1 -> spatial.getOrCreateNativePointLayer(tx, name, SpatialDatabaseService.INDEX_TYPE_RTREE, "location",
null);
default -> spatial.getOrCreateDefaultLayer(tx, name, null);
};
}
private void makeOldSpatialModel(Transaction tx, String... layers) {
KernelTransaction ktx = ((InternalTransaction) tx).kernelTransaction();
SpatialDatabaseService spatial = new SpatialDatabaseService(
new IndexManager((GraphDatabaseAPI) db, ktx.securityContext()));
ArrayList<Node> layerNodes = new ArrayList<>();
int index = 0;
// First create a set of layers
for (String name : layers) {
Layer layer = makeLayerOfVariousTypes(spatial, tx, name, index);
layerNodes.add(layer.getLayerNode(tx));
index++;
}
// Then downgrade to old format, without label and with reference node and relationships
Node root = ReferenceNodes.createDeprecatedReferenceNode(tx, "spatial_root");
for (Node node : layerNodes) {
node.removeLabel(LABEL_LAYER);
root.createRelationshipTo(node, SpatialRelationshipTypes.LAYER);
}
}
@Test
public void old_spatial_model_throws_errors() {
try (Transaction tx = db.beginTx()) {
makeOldSpatialModel(tx, "layer1", "layer2", "layer3");
tx.commit();
}
testCallFails(db, "CALL spatial.layers", null,
"Old reference node exists - please upgrade the spatial database to the new format");
}
@Test
public void old_spatial_model_can_be_upgraded() {
try (Transaction tx = db.beginTx()) {
makeOldSpatialModel(tx, "layer1", "layer2", "layer3");
tx.commit();
}
testCallFails(db, "CALL spatial.layers", null,
"Old reference node exists - please upgrade the spatial database to the new format");
testCallCount(db, "CALL spatial.upgrade", null, 3);
testCallCount(db, "CALL spatial.layers", null, 3);
}
@Test
public void add_node_to_non_existing_layer() {
execute("CALL spatial.addPointLayer('some_name')");
Node node = createNode("CREATE (n:Point {latitude:60.1,longitude:15.2}) RETURN n", "n");
testCallFails(db, "CALL spatial.addNode.byId('wrong_name',$nodeId)", Map.of("nodeId", node.getElementId()),
"No such layer 'wrong_name'");
}
@Test
public void add_node_point_layer() {
execute("CALL spatial.addPointLayer('points')");
executeWrite("CREATE (n:Point {latitude:60.1,longitude:15.2})");
Node node = createNode("MATCH (n:Point) WITH n CALL spatial.addNode('points',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.bbox('points',{longitude:15.0,latitude:60.0},{longitude:15.3, latitude:60.2})",
r -> assertEquals(node, r.get("node")));
testCall(db, "CALL spatial.withinDistance('points',{longitude:15.0,latitude:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_node_and_search_bbox_and_distance() {
execute("CALL spatial.addPointLayerXY('geom','lon','lat')");
Node node = createNode(
"CREATE (n:Node {lat:60.1,lon:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.bbox('geom',{lon:15.0,lat:60.0},{lon:15.3, lat:60.2})",
r -> assertEquals(node, r.get("node")));
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
// This tests issue https://github.com/neo4j-contrib/spatial/issues/298
public void add_node_point_layer_and_search_multiple_points_precision() {
execute("CALL spatial.addPointLayer('bar')");
execute("create (n:Point) set n={latitude: 52.2029252, longitude: 0.0905302} with n call spatial.addNode('bar', n) yield node return node");
execute("create (n:Point) set n={latitude: 52.202925, longitude: 0.090530} with n call spatial.addNode('bar', n) yield node return node");
// long countLow = execute("call spatial.withinDistance('bar', {latitude:52.202925,longitude:0.0905302}, 100) YIELD node RETURN node");
// assertThat("Expected two nodes when using low precision", countLow, equalTo(2L));
long countHigh = execute(
"call spatial.withinDistance('bar', {latitude:52.2029252,longitude:0.0905302}, 100) YIELD node RETURN node");
MatcherAssert.assertThat("Expected two nodes when using high precision", countHigh, equalTo(2L));
}
@Test
public void add_node_and_search_bbox_and_distance_geohash() {
execute("CALL spatial.addPointLayerGeohash('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.bbox('geom',{lon:15.0,lat:60.0},{lon:15.3, lat:60.2})",
r -> assertEquals(node, r.get("node")));
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_node_and_search_bbox_and_distance_zorder() {
execute("CALL spatial.addPointLayerZOrder('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.bbox('geom',{lon:15.0,lat:60.0},{lon:15.3, lat:60.2})",
r -> assertEquals(node, r.get("node")));
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_node_and_search_bbox_and_distance_hilbert() {
execute("CALL spatial.addPointLayerHilbert('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.bbox('geom',{lon:15.0,lat:60.0},{lon:15.3, lat:60.2})",
r -> assertEquals(node, r.get("node")));
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
// This tests issue https://github.com/neo4j-contrib/spatial/issues/298
public void add_node_point_layer_and_search_multiple_points_precision_geohash() {
execute("CALL spatial.addPointLayerGeohash('bar')");
execute("create (n:Point) set n={latitude: 52.2029252, longitude: 0.0905302} with n call spatial.addNode('bar', n) yield node return node");
execute("create (n:Point) set n={latitude: 52.202925, longitude: 0.090530} with n call spatial.addNode('bar', n) yield node return node");
// long countLow = execute("call spatial.withinDistance('bar', {latitude:52.202925,longitude:0.0905302}, 100) YIELD node RETURN node");
// assertEquals("Expected two nodes when using low precision", countLow, equalTo(2L));
long countHigh = execute(
"call spatial.withinDistance('bar', {latitude:52.2029252,longitude:0.0905302}, 100) YIELD node RETURN node");
assertEquals(2L, countHigh, "Expected two nodes when using high precision");
}
//
// Testing interaction between Neo4j Spatial and the Neo4j 3.0 Point type (point() and distance() functions)
//
@Test
public void create_point_and_distance() {
double distance = (Double) executeObject(
"WITH point({latitude: 5.0, longitude: 4.0}) as geometry RETURN point.distance(geometry, point({latitude: 5.0, longitude: 4.0})) as distance",
"distance");
System.out.println(distance);
}
@Test
public void create_point_and_return() {
Object geometry = executeObject("RETURN point({latitude: 5.0, longitude: 4.0}) as geometry", "geometry");
assertInstanceOf(Geometry.class, geometry, "Should be Geometry type");
}
@Test
public void create_node_decode_to_geometry() {
docExample("spatial.decodeGeometry", "Decode a geometry from a node property")
.additionalSignature("spatial.addWKTLayer")
.runCypher("CALL spatial.addWKTLayer('geom','geom')",
config -> config.storeResult().setTitle("Create a WKT layer"))
.runCypher(
"CREATE (n:Node {geom:'POINT(4.0 5.0)'}) RETURN spatial.decodeGeometry('geom',n) AS geometry",
config -> config.storeResult().setTitle("Decode a geometry"))
.assertSingleResult("geometry", geometry -> {
assertInstanceOf(Geometry.class, geometry, "Should be Geometry type");
});
}
@Test
// TODO: Currently this only works for point geometries because Neo4k 3.4 can only return Point geometries from procedures
public void create_node_and_convert_to_geometry() {
execute("CALL spatial.addWKTLayer('geom','geom')");
Geometry geom = (Geometry) executeObject(
"CREATE (n:Node {geom:'POINT(4.0 5.0)'}) RETURN spatial.decodeGeometry('geom',n) AS geometry",
"geometry");
double distance = (Double) executeObject("RETURN point.distance($geom, point({y: 6.0, x: 4.0})) as distance",
Map.of("geom", geom), "distance");
MatcherAssert.assertThat("Expected the cartesian distance of 1.0", distance, closeTo(1.0, 0.00001));
}
@Test
public void testAddNativePointLayerWithConfig() {
docExample("spatial.addNativePointLayerWithConfig", "Create a native point layer with a configuration")
.runCypher("CALL spatial.addNativePointLayerWithConfig('geom','pos:mbr','hilbert')",
ExampleCypher::storeResult)
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty("layer"));
assertEquals("org.neo4j.gis.spatial.encoders.NativePointEncoder", node.getProperty("geomencoder"));
assertEquals("org.neo4j.gis.spatial.index.LayerHilbertPointIndex",
node.getProperty("index_class"));
assertEquals("pos:mbr", node.getProperty("geomencoder_config"));
});
}
@Test
public void testAddNativePointLayerXY() {
docExample("spatial.addNativePointLayerXY", "Create a native point layer")
.additionalSignature("spatial.withinDistance")
.additionalSignature("spatial.addNode")
.runCypher("CALL spatial.addNativePointLayerXY('geom','x','y')",
ExampleCypher::storeResult)
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty("layer"));
assertEquals("org.neo4j.gis.spatial.encoders.SimplePointEncoder", node.getProperty("geomencoder"));
assertEquals("org.neo4j.gis.spatial.index.LayerRTreeIndex", node.getProperty("index_class"));
assertEquals("x:y", node.getProperty("geomencoder_config"));
})
.runCypher(
"CREATE (n:Node {id: 42, x: 5.0, y: 4.0}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
config -> config.setComment("create a node and add it to the index"))
.runCypher("CALL spatial.withinDistance('geom',point({latitude:4.1,longitude:5.1}),100)",
config -> config.storeResult().setComment("Find node within distance"))
.assertSingleResult("node", o -> assertEquals(42L, ((Node) o).getProperty("id")));
}
@Test
public void create_a_pointlayer_with_x_and_y() {
testCall(db, "CALL spatial.addPointLayerXY('geom','lon','lat')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
}
@Test
public void create_a_pointlayer_with_config() {
docExample("spatial.addPointLayerWithConfig", "Create a point layer with X and Y properties")
.runCypher("CALL spatial.addPointLayerWithConfig('geom','lon:lat')", ExampleCypher::storeResult)
.assertSingleResult("node", node -> {
assertEquals("geom", ((Node) node).getProperty("layer"));
});
}
@Test
public void create_a_pointlayer_with_config_on_existing_wkt_layer() {
execute("CALL spatial.addWKTLayer('geom','wkt')");
try {
testCall(db, "CALL spatial.addPointLayerWithConfig('geom','lon:lat')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
fail("Expected exception to be thrown");
} catch (Exception e) {
assertTrue(e.getMessage().contains("Cannot create existing layer"));
}
}
@Test
public void create_a_pointlayer_with_config_on_existing_osm_layer() {
execute("CALL spatial.addLayer('geom','OSM','')");
try {
testCall(db, "CALL spatial.addPointLayerWithConfig('geom','lon:lat')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
fail("Expected exception to be thrown");
} catch (Exception e) {
assertTrue(e.getMessage().contains("Cannot create existing layer"));
}
}
@Test
public void create_a_pointlayer_with_rtree() {
testCall(db, "CALL spatial.addPointLayer('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
}
@Test
public void create_a_pointlayer_with_geohash() {
testCall(db, "CALL spatial.addPointLayerGeohash('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
}
@Test
public void create_a_pointlayer_with_zorder() {
testCall(db, "CALL spatial.addPointLayerZOrder('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
}
@Test
public void create_a_pointlayer_with_hilbert() {
testCall(db, "CALL spatial.addPointLayerHilbert('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
}
@Test
public void create_and_delete_a_pointlayer_with_rtree() {
testCall(db, "CALL spatial.addPointLayer('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
testCallCount(db, "CALL spatial.layers()", null, 1);
execute("CALL spatial.removeLayer('geom')");
testCallCount(db, "CALL spatial.layers()", null, 0);
}
@Test
public void create_and_delete_a_pointlayer_with_geohash() {
testCall(db, "CALL spatial.addPointLayerGeohash('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
testCallCount(db, "CALL spatial.layers()", null, 1);
execute("CALL spatial.removeLayer('geom')");
testCallCount(db, "CALL spatial.layers()", null, 0);
}
@Test
public void create_and_delete_a_pointlayer_with_zorder() {
testCall(db, "CALL spatial.addPointLayerZOrder('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
testCallCount(db, "CALL spatial.layers()", null, 1);
execute("CALL spatial.removeLayer('geom')");
testCallCount(db, "CALL spatial.layers()", null, 0);
}
@Test
public void create_and_delete_a_pointlayer_with_hilbert() {
testCall(db, "CALL spatial.addPointLayerHilbert('geom')",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
testCallCount(db, "CALL spatial.layers()", null, 1);
execute("CALL spatial.removeLayer('geom')");
testCallCount(db, "CALL spatial.layers()", null, 0);
}
@Test
public void create_a_simple_pointlayer_using_named_encoder() {
Example example = docExample("spatial.addLayerWithEncoder", "Create a `SimplePointEncoder`");
example.runCypher("CALL spatial.addLayerWithEncoder('geom','SimplePointEncoder','')",
ExampleCypher::storeResult)
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty("layer"));
assertEquals("org.neo4j.gis.spatial.encoders.SimplePointEncoder",
node.getProperty("geomencoder"));
assertEquals("org.neo4j.gis.spatial.SimplePointLayer", node.getProperty("layer_class"));
assertFalse(node.hasProperty(PROP_GEOMENCODER_CONFIG));
});
}
@Test
public void create_a_simple_pointlayer_using_named_and_configured_encoder() {
Example example = docExample("spatial.addLayerWithEncoder",
"Create a `SimplePointEncoder` with a customized encoder configuration");
example.runCypher("CALL spatial.addLayerWithEncoder('geom','SimplePointEncoder','x:y:mbr')",
config -> config.storeResult().setComment("""
Configures the encoder to use the nodes `x` property instead of `longitude`,
the `y` property instead of `latitude`
and the `mbr` property instead of `bbox`.
"""))
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty(PROP_LAYER));
assertEquals("org.neo4j.gis.spatial.encoders.SimplePointEncoder",
node.getProperty(PROP_GEOMENCODER));
assertEquals("org.neo4j.gis.spatial.SimplePointLayer", node.getProperty(PROP_LAYER_CLASS));
assertEquals("x:y:mbr", node.getProperty(PROP_GEOMENCODER_CONFIG));
});
}
@Test
public void create_a_native_pointlayer_using_named_encoder() {
Example example = docExample("spatial.addLayerWithEncoder", "Create a `NativePointEncoder`");
example.runCypher("CALL spatial.addLayerWithEncoder('geom','NativePointEncoder','')",
ExampleCypher::storeResult)
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty(PROP_LAYER));
assertEquals("org.neo4j.gis.spatial.encoders.NativePointEncoder",
node.getProperty(PROP_GEOMENCODER));
assertEquals("org.neo4j.gis.spatial.SimplePointLayer", node.getProperty(PROP_LAYER_CLASS));
assertFalse(node.hasProperty(PROP_GEOMENCODER_CONFIG));
});
}
@Test
public void create_a_native_pointlayer_using_named_and_configured_encoder() {
Example example = docExample("spatial.addLayerWithEncoder",
"Create a `NativePointEncoder` with a customized encoder configuration");
example.runCypher("CALL spatial.addLayerWithEncoder('geom','NativePointEncoder','pos:mbr')",
config -> config.storeResult().setComment("""
Configures the encoder to use the nodes `pos` property instead of `location`
and the `mbr` property instead of `bbox`.
"""))
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty(PROP_LAYER));
assertEquals("org.neo4j.gis.spatial.encoders.NativePointEncoder",
node.getProperty(PROP_GEOMENCODER));
assertEquals("org.neo4j.gis.spatial.SimplePointLayer", node.getProperty(PROP_LAYER_CLASS));
assertEquals("pos:mbr", node.getProperty(PROP_GEOMENCODER_CONFIG));
});
}
@Test
public void create_a_native_pointlayer_using_named_and_configured_encoder_with_cartesian() {
Example example = docExample("spatial.addLayerWithEncoder",
"Create a `NativePointEncoder` with a customized encoder configuration using Cartesian coordinates");
example.runCypher("CALL spatial.addLayerWithEncoder('geom','NativePointEncoder','pos:mbr:Cartesian')",
config -> config.storeResult().setComment("""
Configures the encoder to use the nodes `pos` property instead of `location`,
the `mbr` property instead of `bbox` and Cartesian coordinates.
"""))
.assertSingleResult("node", o -> {
Assertions.assertThat(o).isInstanceOf(Node.class);
Node node = (Node) o;
assertEquals("geom", node.getProperty(PROP_LAYER));
assertEquals("org.neo4j.gis.spatial.encoders.NativePointEncoder",
node.getProperty(PROP_GEOMENCODER));
assertEquals("org.neo4j.gis.spatial.SimplePointLayer", node.getProperty(PROP_LAYER_CLASS));
assertEquals("pos:mbr:Cartesian", node.getProperty(PROP_GEOMENCODER_CONFIG));
});
}
@Test
public void create_a_native_pointlayer_using_named_and_configured_encoder_with_geographic() {
testCall(db, "CALL spatial.addLayerWithEncoder('geom','NativePointEncoder','pos:mbr:WGS-84')", (r) -> {
Node node = dump((Node) r.get("node"));
assertEquals("geom", node.getProperty(PROP_LAYER));
assertEquals("org.neo4j.gis.spatial.encoders.NativePointEncoder",
node.getProperty(PROP_GEOMENCODER));
assertEquals("org.neo4j.gis.spatial.SimplePointLayer", node.getProperty(PROP_LAYER_CLASS));
assertEquals("pos:mbr:WGS-84", node.getProperty(PROP_GEOMENCODER_CONFIG));
});
}
@Test
public void create_a_wkt_layer_using_know_format() {
testCall(db, "CALL spatial.addLayer('geom','WKT',null)",
(r) -> assertEquals("geom", (dump((Node) r.get("node"))).getProperty("layer")));
}
@Test
public void list_layer_names() {
String wkt = "LINESTRING (15.2 60.1, 15.3 60.1)";
execute("CALL spatial.addWKTLayer('geom','wkt')");
execute("CALL spatial.addWKT('geom',$wkt)", Map.of("wkt", wkt));
testCall(db, "CALL spatial.layers()", (r) -> {
assertEquals("geom", r.get("name"));
assertEquals("EditableLayer(name='geom', encoder=WKTGeometryEncoder(geom='wkt', bbox='bbox'))",
r.get("signature"));
});
}
@Test
public void add_and_remove_layer() {
docExample("spatial.layers", "Add and Remove a layer")
.additionalSignature("spatial.removeLayer")
.runCypher("CALL spatial.addWKTLayer('geom','wkt')", ExampleCypher::storeResult)
.runCypher("CALL spatial.layers()", ExampleCypher::storeResult)
.assertResult(res -> Assertions.assertThat(res).hasSize(1))
.runCypher("CALL spatial.removeLayer('geom')", ExampleCypher::storeResult)
.runCypher("CALL spatial.layers()", ExampleCypher::storeResult)
.assertResult(res -> Assertions.assertThat(res).isEmpty());
}
@Test
public void add_and_remove_multiple_layers() {
int NUM_LAYERS = 100;
String wkt = "LINESTRING (15.2 60.1, 15.3 60.1)";
for (int i = 0; i < NUM_LAYERS; i++) {
String name = "wktLayer_" + i;
testCallCount(db, "CALL spatial.layers()", null, i);
execute("CALL spatial.addWKTLayer($layerName,'wkt')", Map.of("layerName", name));
execute("CALL spatial.addWKT($layerName,$wkt)", Map.of("wkt", wkt, "layerName", name));
testCallCount(db, "CALL spatial.layers()", null, i + 1);
}
for (int i = 0; i < NUM_LAYERS; i++) {
String name = "wktLayer_" + i;
testCallCount(db, "CALL spatial.layers()", null, NUM_LAYERS - i);
execute("CALL spatial.removeLayer($layerName)", Map.of("layerName", name));
testCallCount(db, "CALL spatial.layers()", null, NUM_LAYERS - i - 1);
}
testCallCount(db, "CALL spatial.layers()", null, 0);
}
@Test
public void get_and_set_feature_attributes() {
docExample("spatial.getFeatureAttributes", "Get the feature attributes of a layer")
.additionalSignature("spatial.setFeatureAttributes")
.runCypher("CALL spatial.addWKTLayer('geom','wkt')", ExampleCypher::storeResult)
.runCypher("CALL spatial.getFeatureAttributes('geom')", ExampleCypher::storeResult)
.assertResult(res -> Assertions.assertThat(res).hasSize(0))
.runCypher("CALL spatial.setFeatureAttributes('geom',['name','type','color'])",
ExampleCypher::storeResult)
.runCypher("CALL spatial.getFeatureAttributes('geom')", ExampleCypher::storeResult)
.assertResult(res -> Assertions.assertThat(res).hasSize(3));
}
@Test
public void list_spatial_procedures() {
testResult(db, "CALL spatial.procedures()", (res) -> {
Map<String, String> procs = new LinkedHashMap<>();
while (res.hasNext()) {
Map<String, Object> r = res.next();
procs.put(r.get("name").toString(), r.get("signature").toString());
}
for (String key : procs.keySet()) {
System.out.println(key + ": " + procs.get(key));
}
assertEquals("spatial.procedures() :: (name :: STRING, signature :: STRING)",
procs.get("spatial.procedures"));
assertEquals("spatial.layers() :: (name :: STRING, signature :: STRING)",
procs.get("spatial.layers"));
assertEquals("spatial.layer(name :: STRING) :: (node :: NODE)", procs.get("spatial.layer"));
assertEquals(
"spatial.addLayer(name :: STRING, type :: STRING, encoderConfig :: STRING, indexConfig = :: STRING) :: (node :: NODE)",
procs.get("spatial.addLayer"));
assertEquals("spatial.addNode(layerName :: STRING, node :: NODE) :: (node :: NODE)",
procs.get("spatial.addNode"));
assertEquals("spatial.addWKT(layerName :: STRING, geometry :: STRING) :: (node :: NODE)",
procs.get("spatial.addWKT"));
assertEquals("spatial.intersects(layerName :: STRING, geometry :: ANY) :: (node :: NODE)",
procs.get("spatial.intersects"));
});
}
@Test
public void list_layer_types() {
Example example = docExample("spatial.layerTypes", "List the available layer types");
example.runCypher("CALL spatial.layerTypes()", ExampleCypher::storeResult)
.assertResult(res -> {
Map<String, String> procs = new LinkedHashMap<>();
for (Map<String, Object> r : res) {
procs.put(r.get("name").toString(), r.get("signature").toString());
}
Assertions.assertThat(procs).containsOnly(
entry(
"simplepoint",
"RegisteredLayerType(name='SimplePoint', geometryEncoder=SimplePointEncoder, layerClass=SimplePointLayer, index=LayerRTreeIndex, crs='WGS84(DD)', defaultConfig='longitude:latitude')"
),
entry(
"nativepoint",
"RegisteredLayerType(name='NativePoint', geometryEncoder=NativePointEncoder, layerClass=SimplePointLayer, index=LayerRTreeIndex, crs='WGS84(DD)', defaultConfig='location')"
),
entry(
"nativepoints",
"RegisteredLayerType(name='NativePoints', geometryEncoder=NativePointsEncoder, layerClass=EditableLayerImpl, index=LayerRTreeIndex, crs='WGS84(DD)', defaultConfig='geometry')"
),
entry(
"wkt",
"RegisteredLayerType(name='WKT', geometryEncoder=WKTGeometryEncoder, layerClass=EditableLayerImpl, index=LayerRTreeIndex, crs='WGS84(DD)', defaultConfig='geometry')"
),
entry(
"wkb",
"RegisteredLayerType(name='WKB', geometryEncoder=WKBGeometryEncoder, layerClass=EditableLayerImpl, index=LayerRTreeIndex, crs='WGS84(DD)', defaultConfig='geometry')"
),
entry(
"geohash",
"RegisteredLayerType(name='Geohash', geometryEncoder=SimplePointEncoder, layerClass=SimplePointLayer, index=LayerGeohashPointIndex, crs='WGS84(DD)', defaultConfig='longitude:latitude')"
),
entry(
"zorder",
"RegisteredLayerType(name='ZOrder', geometryEncoder=SimplePointEncoder, layerClass=SimplePointLayer, index=LayerZOrderPointIndex, crs='WGS84(DD)', defaultConfig='longitude:latitude')"
),
entry(
"hilbert",
"RegisteredLayerType(name='Hilbert', geometryEncoder=SimplePointEncoder, layerClass=SimplePointLayer, index=LayerHilbertPointIndex, crs='WGS84(DD)', defaultConfig='longitude:latitude')"
),
entry(
"nativegeohash",
"RegisteredLayerType(name='NativeGeohash', geometryEncoder=NativePointEncoder, layerClass=SimplePointLayer, index=LayerGeohashPointIndex, crs='WGS84(DD)', defaultConfig='location')"
),
entry(
"nativezorder",
"RegisteredLayerType(name='NativeZOrder', geometryEncoder=NativePointEncoder, layerClass=SimplePointLayer, index=LayerZOrderPointIndex, crs='WGS84(DD)', defaultConfig='location')"
),
entry(
"nativehilbert",
"RegisteredLayerType(name='NativeHilbert', geometryEncoder=NativePointEncoder, layerClass=SimplePointLayer, index=LayerHilbertPointIndex, crs='WGS84(DD)', defaultConfig='location')"
),
entry(
"osm",
"RegisteredLayerType(name='OSM', geometryEncoder=OSMGeometryEncoder, layerClass=OSMLayer, index=LayerRTreeIndex, crs='WGS84(DD)', defaultConfig='geometry')"
)
);
});
}
@Test
public void find_layer() {
Example example = docExample("spatial.layer", "Find an existing layer");
Example example1 = example.runCypher("CALL spatial.addWKTLayer('geom','wkt')",
config -> config.setComment("Create a WKT layer"));
example1.runCypher("CALL spatial.layer('geom')", ExampleCypher::storeResult)
.assertSingleResult("node", r -> assertEquals("geom", ((Node) r).getProperty("layer")));
testCallFails(db, "CALL spatial.layer('badname')", null, "No such layer 'badname'");
}
@Test
public void add_a_node_to_the_spatial_rtree_index_for_simple_points() {
execute("CALL spatial.addPointLayer('geom')");
Node node = createNode("CREATE (n:Node {latitude:60.1,longitude:15.2}) RETURN n", "n");
testCall(db, "MATCH (n:Node) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_a_node_to_the_spatial_geohash_index_for_simple_points() {
execute("CALL spatial.addPointLayerGeohash('geom')");
Node node = createNode("CREATE (n:Node {latitude:60.1,longitude:15.2}) RETURN n", "n");
testCall(db, "MATCH (n:Node) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_a_node_to_the_spatial_zorder_index_for_simple_points() {
execute("CALL spatial.addPointLayerZOrder('geom')");
Node node = createNode("CREATE (n:Node {latitude:60.1,longitude:15.2}) RETURN n", "n");
testCall(db, "MATCH (n:Node) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_a_node_to_the_spatial_hilbert_index_for_simple_points() {
execute("CALL spatial.addPointLayerHilbert('geom')");
Node node = createNode("CREATE (n:Node {latitude:60.1,longitude:15.2}) RETURN n", "n");
testCall(db, "MATCH (n:Node) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
r -> assertEquals(node, r.get("node")));
}
static Stream<Arguments> provideEncodersAndIndexes() {
return Stream.of("Simple", "Native")
.flatMap(encoder -> Stream.of("Geohash", "ZOrder", "Hilbert", "RTree")
.map(index -> arguments(encoder, index)));
}
@ParameterizedTest
@MethodSource("provideEncodersAndIndexes")
public void testPointLayer(String encoder, String indexType) {
String procName = encoder.equals("Native") ? "spatial.addNativePointLayer" : "spatial.addPointLayer";
if (!indexType.equals("RTree")) {
procName += indexType;
}
String layerName = ("my-" + encoder + "-" + indexType + "-layer").toLowerCase();
Example example = docExample(procName, "Create a layer to index a node");
example.runCypher("CALL " + procName + "('" + layerName + "')", ExampleCypher::storeResult)
.runCypher("CREATE (n:Node {id: 42, latitude:60.1,longitude:15.2}) SET n.location=point(n) RETURN n",
config -> config.setComment("Create a node to index"))
.runCypher("MATCH (n:Node) WITH n CALL spatial.addNode('" + layerName + "',n) YIELD node RETURN node",
config -> config.storeResult().setComment("Index node").storeResult())
.assertSingleResult("node", o -> assertEquals(42L, ((Node) o).getProperty("id")))
.runCypher("CALL spatial.withinDistance('" + layerName + "',{lon:15.0,lat:60.0},100)",
config -> config.storeResult().setComment("Find node within distance"))
.assertSingleResult("node", o -> assertEquals(42L, ((Node) o).getProperty("id")));
testResult(db, "CALL spatial.layers()", (res) -> {
while (res.hasNext()) {
Map<String, Object> r = res.next();
String expectedEncoder =
r.get("name").toString().contains("native") ? "NativePointEncoder" : "SimplePointEncoder";
MatcherAssert.assertThat("Expect simple:native encoders to appear in simple:native layers",
r.get("signature").toString(), containsString(expectedEncoder));
}
});
execute("CALL spatial.removeLayer('" + layerName + "')");
testCallCount(db, "CALL spatial.layers()", null, 0);
}
@Test
public void testDistanceNode() {
execute("CALL spatial.addPointLayer('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void testDistanceNodeWithGeohashIndex() {
execute("CALL spatial.addPointLayer('geom','geohash')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void testDistanceNodeGeohash() {
execute("CALL spatial.addPointLayerGeohash('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void testDistanceNodeZOrder() {
execute("CALL spatial.addPointLayerZOrder('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void testDistanceNodeHilbert() {
execute("CALL spatial.addPointLayerHilbert('geom')");
Node node = createNode(
"CREATE (n:Node {latitude:60.1,longitude:15.2}) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
"node");
testCall(db, "CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_a_node_to_the_spatial_index_short() {
execute("CALL spatial.addPointLayerXY('geom','lon','lat')");
Node node = createNode("CREATE (n:Node {lat:60.1,lon:15.2}) RETURN n", "n");
testCall(db, "MATCH (n:Node) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_a_node_to_the_spatial_index_short_with_geohash() {
execute("CALL spatial.addPointLayerXY('geom','lon','lat','geohash')");
Node node = createNode("CREATE (n:Node {lat:60.1,lon:15.2}) RETURN n", "n");
testCall(db, "MATCH (n:Node) WITH n CALL spatial.addNode('geom',n) YIELD node RETURN node",
r -> assertEquals(node, r.get("node")));
}
@Test
public void add_two_nodes_to_the_spatial_layer() {
docExample("spatial.addPointLayerXY", "Create a point layer with X and Y properties")
.additionalSignature("spatial.addNodes")
.additionalSignature("spatial.removeNode")
.additionalSignature("spatial.removeNode.byId")
.runCypher("CALL spatial.addPointLayerXY('geom','lon','lat')")
.runCypher(
"CREATE (n1:Node {id: 1, lat:60.1,lon:15.2}),(n2:Node {id: 2, lat:60.1,lon:15.3}) WITH n1,n2 CALL spatial.addNodes('geom',[n1,n2]) YIELD count RETURN n1,n2,count",
config -> config.storeResult().setComment("Add two nodes to the layer"))
.assertSingleResult("n1", o -> assertEquals(60.1, ((Node) o).getProperty("lat")))
.assertSingleResult("n2", o -> assertEquals(60.1, ((Node) o).getProperty("lat")))
.assertSingleResult("count", o -> assertEquals(2L, o))
.runCypher("CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
config -> config.storeResult().setComment("Find nodes within distance"))
.assertResult(res -> {
assertEquals(2, res.size());
assertEquals(1L, ((Node) res.get(0).get("node")).getProperty("id"));
assertEquals(2L, ((Node) res.get(1).get("node")).getProperty("id"));
})
.runCypher("""
MATCH (node) WHERE node.id = 1
CALL spatial.removeNode('geom', node) YIELD nodeId
RETURN nodeId
""",
config -> config.setComment("Remove node 1"))
.runCypher("CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
ExampleCypher::storeResult)
.assertSingleResult("node", o -> assertEquals(2L, ((Node) o).getProperty("id")))
.runCypher("""
MATCH (node) WHERE node.id = 2
CALL spatial.removeNode.byId('geom', elementId(node)) YIELD nodeId
RETURN nodeId
""",
config -> config.setComment("Remove node 2"))
.runCypher("CALL spatial.withinDistance('geom',{lon:15.0,lat:60.0},100)",
ExampleCypher::storeResult)
.assertResult(res -> Assertions.assertThat(res).isEmpty());
}
@Test
public void add_many_nodes_to_the_simple_point_layer_using_addNodes() {
// Playing with this number in both tests leads to rough benchmarking of the addNode/addNodes comparison
int count = 1000;
execute("CALL spatial.addLayer('simple_poi','SimplePoint','')");
String query = "UNWIND range(1,$count) as i\n" +
"CREATE (n:Point {id:i, latitude:(56.0+toFloat(i)/100.0),longitude:(12.0+toFloat(i)/100.0)})\n" +
"WITH collect(n) as points\n" +
"CALL spatial.addNodes('simple_poi',points) YIELD count\n" +
"RETURN count";
testCountQuery("addNodes", query, count, "count", Map.of("count", count));
testRemoveNodes("simple_poi", count);
}
@Test
public void add_many_nodes_to_the_simple_point_layer_using_addNode() {
// Playing with this number in both tests leads to rough benchmarking of the addNode/addNodes comparison
int count = 1000;
execute("CALL spatial.addLayer('simple_poi','SimplePoint','')");
String query = "UNWIND range(1,$count) as i\n" +
"CREATE (n:Point {id:i, latitude:(56.0+toFloat(i)/100.0),longitude:(12.0+toFloat(i)/100.0)})\n" +
"WITH n\n" +
"CALL spatial.addNode('simple_poi',n) YIELD node\n" +
"RETURN count(node)";
testCountQuery("addNode", query, count, "count(node)", Map.of("count", count));
testRemoveNode("simple_poi", count);
}
@Test
public void add_many_nodes_to_the_native_point_layer_using_addNodes() {
// Playing with this number in both tests leads to rough benchmarking of the addNode/addNodes comparison
int count = 1000;
execute("CALL spatial.addLayer('native_poi','NativePoint','')");
String query = "UNWIND range(1,$count) as i\n" +
"WITH i, Point({latitude:(56.0+toFloat(i)/100.0),longitude:(12.0+toFloat(i)/100.0)}) AS location\n" +
"CREATE (n:Point {id: i, location:location})\n" +
"WITH collect(n) as points\n" +
"CALL spatial.addNodes('native_poi',points) YIELD count\n" +
"RETURN count";
testCountQuery("addNodes", query, count, "count", Map.of("count", count));
testRemoveNodes("native_poi", count);
}
@Test
public void add_node_to_multiple_indexes_in_chunks() {
Example example = docExample("spatial.addLayer", "Add the same node to multiple layers");
Example example1 = example.runCypher("""
UNWIND range(1,$count) as i
CREATE (n:Point {
id: i,
point1: point( { latitude: 56.0, longitude: 12.0 } ),
point2: point( { latitude: 57.0, longitude: 13.0 } )
})""", config -> config.setParams(Map.of("count", 100)).setTitle("Create some nodes"));
Example example2 = example1.runCypher("""
CALL spatial.addLayer(
'point1',
'NativePoint',
'point1:point1BB',
'{"referenceRelationshipType": "RTREE_P1_TYPE"}'
)
""", config1 -> config1.setComment("""
Create a layer `point1` to index property `point1` of node `Point`.
Save the bounding box in the property `point1BB` of the `Point` node.
Associate the node with the index layer via relationship type `RTREE_P1_TYPE`.
"""));
Example example3 = example2.runCypher("""
CALL spatial.addLayer(
'point2',
'NativePoint',