-
Notifications
You must be signed in to change notification settings - Fork 193
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add support for native point array properties
- Loading branch information
Showing
9 changed files
with
135 additions
and
44 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
106 changes: 106 additions & 0 deletions
106
src/main/java/org/neo4j/gis/spatial/encoders/NativePointsEncoder.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| /* | ||
| * 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.encoders; | ||
|
|
||
| import java.util.Arrays; | ||
| import org.locationtech.jts.geom.Coordinate; | ||
| import org.locationtech.jts.geom.Geometry; | ||
| import org.locationtech.jts.geom.LineString; | ||
| import org.neo4j.gis.spatial.AbstractGeometryEncoder; | ||
| import org.neo4j.gis.spatial.SpatialDatabaseService; | ||
| import org.neo4j.gis.spatial.encoders.neo4j.Neo4jCRS; | ||
| import org.neo4j.gis.spatial.encoders.neo4j.Neo4jPoint; | ||
| import org.neo4j.graphdb.Entity; | ||
| import org.neo4j.graphdb.Transaction; | ||
|
|
||
| /** | ||
| * Simple encoder that stores line strings as an array of points. | ||
| */ | ||
| public class NativePointsEncoder extends AbstractGeometryEncoder implements Configurable { | ||
|
|
||
| private String property = "geometry"; | ||
| private Neo4jCRS crs = Neo4jCRS.findCRS("WGS-84"); | ||
|
|
||
| @Override | ||
| protected void encodeGeometryShape(Transaction tx, Geometry geometry, Entity container) { | ||
| var gtype = SpatialDatabaseService.convertJtsClassToGeometryType(geometry.getClass()); | ||
| if (geometry instanceof LineString lineString) { | ||
| var neo4jPoints = Arrays.stream(lineString.getCoordinates()) | ||
| .map(coordinate -> new Neo4jPoint(coordinate, crs)) | ||
| .toArray(org.neo4j.graphdb.spatial.Point[]::new); | ||
| container.setProperty(PROP_TYPE, gtype); | ||
| container.setProperty(property, neo4jPoints); | ||
| } else { | ||
| throw new IllegalArgumentException( | ||
| "Can only store point-arrays as linestring: " + SpatialDatabaseService.convertGeometryTypeToName( | ||
| gtype)); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| @Override | ||
| public Geometry decodeGeometry(Entity container) { | ||
| var points = ((org.neo4j.graphdb.spatial.Point[]) container.getProperty(property)); | ||
| var factory = getGeometryFactory(); | ||
| var coordinates = Arrays.stream(points) | ||
| .map(point -> { | ||
| if (point.getCRS().getCode() != crs.getCode()) { | ||
| throw new IllegalStateException( | ||
| "Trying to decode geometry with wrong CRS: layer configured to crs=" + crs | ||
| + ", but geometry has crs=" + point.getCRS().getCode()); | ||
| } | ||
| double[] coordinate = point.getCoordinate().getCoordinate(); | ||
| if (crs.dimensions() == 3) { | ||
| return new Coordinate(coordinate[0], coordinate[1], coordinate[2]); | ||
| } else { | ||
| return new Coordinate(coordinate[0], coordinate[1]); | ||
| } | ||
| }) | ||
| .toArray(Coordinate[]::new); | ||
| return factory.createLineString(coordinates); | ||
| } | ||
|
|
||
| @Override | ||
| public String getConfiguration() { | ||
| return property + ":" + bboxProperty + ": " + crs.getCode(); | ||
| } | ||
|
|
||
| @Override | ||
| public void setConfiguration(String configuration) { | ||
| if (configuration != null && !configuration.trim().isEmpty()) { | ||
| String[] fields = configuration.split(":"); | ||
| if (fields.length > 0) { | ||
| property = fields[0]; | ||
| } | ||
| if (fields.length > 1) { | ||
| bboxProperty = fields[1]; | ||
| } | ||
| if (fields.length > 2) { | ||
| crs = Neo4jCRS.findCRS(fields[2]); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public String getSignature() { | ||
| return "NativePointEncoder(geometry='" + property + "', bbox='" + bboxProperty + "', crs=" + crs.getCode() | ||
| + ")"; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters