Github user isper3at commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/182#discussion_r130736405
--- Diff:
extras/rya.geoindexing/geo.mongo/src/main/java/org/apache/rya/indexing/geoExamples/RyaMongoGeoDirectExample.java
---
@@ -0,0 +1,242 @@
+package org.apache.rya.indexing.geoExamples;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.commons.lang.Validate;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.log4j.Logger;
+import org.apache.rya.indexing.GeoRyaSailFactory;
+import org.apache.rya.indexing.accumulo.ConfigUtils;
+import org.apache.rya.indexing.accumulo.geo.OptionalConfigUtils;
+import org.apache.rya.indexing.mongodb.MongoIndexingConfiguration;
+import
org.apache.rya.indexing.mongodb.MongoIndexingConfiguration.MongoDBIndexingConfigBuilder;
+import org.apache.rya.mongodb.MockMongoFactory;
+import org.apache.rya.mongodb.MongoConnectorFactory;
+import org.openrdf.model.vocabulary.RDFS;
+import org.openrdf.query.BindingSet;
+import org.openrdf.query.MalformedQueryException;
+import org.openrdf.query.QueryEvaluationException;
+import org.openrdf.query.QueryLanguage;
+import org.openrdf.query.QueryResultHandlerException;
+import org.openrdf.query.TupleQuery;
+import org.openrdf.query.TupleQueryResultHandler;
+import org.openrdf.query.TupleQueryResultHandlerException;
+import org.openrdf.query.Update;
+import org.openrdf.query.UpdateExecutionException;
+import org.openrdf.repository.RepositoryException;
+import org.openrdf.repository.sail.SailRepository;
+import org.openrdf.repository.sail.SailRepositoryConnection;
+import org.openrdf.sail.Sail;
+
+import com.mongodb.MongoClient;
+import com.mongodb.ServerAddress;
+
+public class RyaMongoGeoDirectExample {
+ private static final Logger log =
Logger.getLogger(RyaMongoGeoDirectExample.class);
+
+ //
+ // Connection configuration parameters
+ //
+
+ private static final boolean PRINT_QUERIES = true;
+ private static final String MONGO_DB = "rya";
+ private static final String MONGO_COLL_PREFIX = "rya_";
+ private static final boolean USE_MOCK = true;
+ private static final boolean USE_INFER = true;
+ private static final String MONGO_INSTANCE_URL = "localhost";
+ private static final String MONGO_INSTANCE_PORT = "27017";
+
+ public static void main(String[] args) throws Exception {
+ Configuration conf = getConf();
+ conf.setBoolean(ConfigUtils.DISPLAY_QUERY_PLAN, PRINT_QUERIES);
+ conf.setBoolean(OptionalConfigUtils.USE_GEO, true); // Note
also the use of "GeoRyaSailFactory" below.
+ conf.setStrings(OptionalConfigUtils.GEO_PREDICATES_LIST,
"http://www.opengis.net/ont/geosparql#asWKT";); // Note also the use of
"GeoRyaSailFactory" below.
+
+ SailRepository repository = null;
+ SailRepositoryConnection conn = null;
+ try {
+ log.info("Connecting to Indexing Sail Repository.");
+ Sail sail = GeoRyaSailFactory.getInstance(conf);
+ repository = new SailRepository(sail);
+ conn = repository.getConnection();
+
+ long start = System.currentTimeMillis();
+ testAddPointAndWithinSearch(conn); // uses geospatial features
+
+ log.info("TIME: " + (System.currentTimeMillis() - start) /
1000.);
+ } finally {
+ log.info("Shutting down");
+ closeQuietly(conn);
+ closeQuietly(repository);
+ if (mock != null) {
+ mock.shutdown();
+ }
+ MongoConnectorFactory.closeMongoClient();
+ }
+ }
+/**
+ * Try out some geospatial data and queries
+ * @param repository
+ */
+ private static void
testAddPointAndWithinSearch(SailRepositoryConnection conn) throws Exception {
+
+ String update = "PREFIX geo:
<http://www.opengis.net/ont/geosparql#> "//
+ + "INSERT DATA { " //
+ + " <urn:feature> a geo:Feature ; " //
+ + " geo:hasGeometry [ " //
+ + " a geo:Point ; " //
+ + " geo:asWKT \"Point(-77.03524
38.889468)\"^^geo:wktLiteral "//
+ + " ] . " //
+ + "}";
+
+ Update u = conn.prepareUpdate(QueryLanguage.SPARQL, update);
+ u.execute();
+
+ String queryString;
+ TupleQuery tupleQuery;
+ CountingResultHandler tupleHandler;
+
+ // ring containing point
+ queryString = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>
"//
+ + "PREFIX geof:
<http://www.opengis.net/def/function/geosparql/> "//
+ + "SELECT ?feature ?point ?wkt " //
+ + "{" //
+ + " ?feature a geo:Feature . "//
+ + " ?feature geo:hasGeometry ?point . "//
+ + " ?point a geo:Point . "//
+ + " ?point geo:asWKT ?wkt . "//
+ + " FILTER(geof:sfWithin(?wkt, \"POLYGON((-78 39, -77 39,
-77 38, -78 38, -78 39))\"^^geo:wktLiteral)) " //
+ + "}";//
+ tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL,
queryString);
+
+ tupleHandler = new CountingResultHandler();
+ tupleQuery.evaluate(tupleHandler);
+ log.info("Result count -- ring containing point: " +
tupleHandler.getCount());
+ Validate.isTrue(tupleHandler.getCount() >= 1); // may see points
from during previous runs
+
+ // ring outside point
+ queryString = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>
"//
+ + "PREFIX geof:
<http://www.opengis.net/def/function/geosparql/> "//
+ + "SELECT ?feature ?point ?wkt " //
+ + "{" //
+ + " ?feature a geo:Feature . "//
+ + " ?feature geo:hasGeometry ?point . "//
+ + " ?point a geo:Point . "//
+ + " ?point geo:asWKT ?wkt . "//
+ + " FILTER(geof:sfWithin(?wkt, \"POLYGON((-77 39, -76 39,
-76 38, -77 38, -77 39))\"^^geo:wktLiteral)) " //
+ + "}";//
+ tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL,
queryString);
+
+ tupleHandler = new CountingResultHandler();
+ tupleQuery.evaluate(tupleHandler);
+ log.info("Result count -- ring outside point: " +
tupleHandler.getCount());
+ Validate.isTrue(tupleHandler.getCount() == 0);
+ }
+
+ private static void closeQuietly(SailRepository repository) {
+ if (repository != null) {
+ try {
+ repository.shutDown();
+ } catch (RepositoryException e) {
+ // quietly absorb this exception
+ }
+ }
+ }
+
+ private static void closeQuietly(SailRepositoryConnection conn) {
+ if (conn != null) {
+ try {
+ conn.close();
+ } catch (RepositoryException e) {
+ // quietly absorb this exception
+ }
+ }
+ }
+
+ private static MockMongoFactory mock = null;
+ private static Configuration getConf() throws IOException {
+
+ MongoDBIndexingConfigBuilder builder =
MongoIndexingConfiguration.builder()
+
.setUseMockMongo(USE_MOCK).setUseInference(USE_INFER).setAuths("U");
+
+ if (USE_MOCK) {
+ mock = MockMongoFactory.newFactory();
+ MongoClient c = mock.newMongoClient();
+ ServerAddress address = c.getAddress();
+ String url = address.getHost();
+ String port = Integer.toString(address.getPort());
+ c.close();
+ builder.setMongoHost(url).setMongoPort(port);
+ } else {
+ // User name and password must be filled in:
+ builder = builder.setMongoUser("fill this in")
+ .setMongoPassword("fill this
in")
+
.setMongoHost(MONGO_INSTANCE_URL)
+
.setMongoPort(MONGO_INSTANCE_PORT);
+ }
+
+ return builder.setMongoDBName(MONGO_DB)
+ .setMongoCollectionPrefix(MONGO_COLL_PREFIX)
+ .setUseMongoFreetextIndex(true)
+
.setMongoFreeTextPredicates(RDFS.LABEL.stringValue()).build();
+
+ }
+
+
+ private static class CountingResultHandler implements
TupleQueryResultHandler {
+ private int count = 0;
+
+ public int getCount() {
+ return count;
+ }
+
+// public void resetCount() {
--- End diff --
commented out code
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