Neo4j Spatial: can't run spatial - groovy

Question

I have been trying to work with Neo4j Spatial for my project, but I can't make it work.
With limited documentation and examples I figured out how to load OSM map to the database. But to check if it is loaded, I am trying to execute a spatial query.
While trying to run my code I get this error:
import.java:69: error: cannot access GremlinGroovyPipeline
.startIntersectSearch(layer, bbox)
^
class file for com.tinkerpop.gremlin.groovy.GremlinGroovyPipeline not found
I understand what's wrong (it can't find the required library), but I don't know how to fix it. The reason is when I run Neo4j Spatial tests, LayerTest.java and TestSpatial.java do include GeoPipeline library and it works perfectly fine. However, when I created my simple java file to test Neo4j, and trying to execute commands that depend GeoPipeline library I get the error above.
I read the instructions on github for Neo4j and saw this note:
Note: neo4j-spatial has a mandatory dependency on
GremlinGroovyPipeline from the com.tinkerpop.gremlin.groovy package.
The dependency in neo4j is type 'provided', so when using
neo4j-spatial in your own Java project, make sure to add the following
dependency to your pom.xml, too.
However, I am not using Maven to build my app. It is a simple java file, that I want to run to test if I get how everything works.
here is the code from my java file:
package org.neo4j.gis.spatial;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.geotools.data.DataStore;
import org.geotools.data.neo4j.Neo4jSpatialDataStore;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.neo4j.gis.spatial.osm.OSMDataset;
import org.neo4j.gis.spatial.osm.OSMDataset.Way;
import org.neo4j.gis.spatial.osm.OSMGeometryEncoder;
import org.neo4j.gis.spatial.osm.OSMImporter;
import org.neo4j.gis.spatial.osm.OSMLayer;
import org.neo4j.gis.spatial.osm.OSMRelation;
import org.neo4j.gis.spatial.pipes.osm.OSMGeoPipeline;
import org.neo4j.graphdb.Direction;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Relationship;
import com.vividsolutions.jts.geom.Envelope;
import com.vividsolutions.jts.geom.Geometry;
import org.neo4j.kernel.impl.batchinsert.BatchInserter;
import org.neo4j.kernel.impl.batchinsert.BatchInserterImpl;
import org.neo4j.kernel.EmbeddedGraphDatabase;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.gis.spatial.pipes.GeoPipeline;
class SpatialOsmImport {
public static void main(String[] args)
{
OSMImporter importer = new OSMImporter("ott.osm");
Map<String, String> config = new HashMap<String, String>();
config.put("neostore.nodestore.db.mapped_memory", "90M" );
config.put("dump_configuration", "true");
config.put("use_memory_mapped_buffers", "true");
BatchInserter batchInserter = new BatchInserterImpl("target/dependency", config);
importer.setCharset(Charset.forName("UTF-8"));
try{
importer.importFile(batchInserter, "ott.osm", false);
batchInserter.shutdown();
GraphDatabaseService db = new EmbeddedGraphDatabase("target/dependency");
importer.reIndex(db, 10000);
db.shutdown();
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
GraphDatabaseService database = new EmbeddedGraphDatabase("target/dependency");
try{
SpatialDatabaseService spatialService = new SpatialDatabaseService(database);
Layer layer = spatialService.getLayer("layer_roads");
LayerIndexReader spatialIndex = layer.getIndex();
System.out.println("Have " + spatialIndex.count() + " geometries in " + spatialIndex.getBoundingBox());
Envelope bbox = new Envelope(-75.80, 45.19, -75.7, 45.23);
// Search searchQuery = new SearchIntersectWindow(bbox);
// spatialIndex.executeSearch(searchQuery);
// List<SpatialDatabaseRecord> results = searchQuery.getResults();
List<SpatialDatabaseRecord> results = GeoPipeline
.startIntersectSearch(layer, bbox)
.toSpatialDatabaseRecordList();
doGeometryTestsOnResults(bbox, results);
} finally {
database.shutdown();
}
}
private static void doGeometryTestsOnResults(Envelope bbox, List<SpatialDatabaseRecord> results) {
System.out.println("Found " + results.size() + " geometries in " + bbox);
Geometry geometry = results.get(0).getGeometry();
System.out.println("First geometry is " + geometry);
geometry.buffer(2);
}
}
It is very simple right now, but I can't make it work. How do I include com.tinkerpop.gremlin.groovy.GremlinGroovyPipeline in my app, so it works?
I run everything on Ubuntu 12.04 and java version "1.7.0_25", Java(TM) SE Runtime Environment (build 1.7.0_25-b15).
Any help is greatly appreciated.

Answer 1

the best way to get all the required dependencies in a place where you can include them in your classpath is to run
mvn dependency:copy-dependencies
in neo4j-spatial, and find the libs to include in target/deps, see http://maven.apache.org/plugins/maven-dependency-plugin/usage.html