Documentation on Java spatial RDDs

No documentation file or test is named. Start by locating the current GeoMesa Spark documentation for Java spatial RDDs and compare it with the supplied example and current GeoMesa version. Done means the example is verified or updated for the current version and the guidance addresses whether Spark SQL or DataFrames provide a more concise approach.

Documentation on Java spatial RDDs

Example from Tom Kunicki using GM 1.3.1 (should be verified for current gm version). Tom also says "If you're looking to use Spark SQL or DataFrames this sample could be made more concise".
import org.apache.hadoop.conf.Configuration; import org.apache.spark.SparkConf; import org.apache.spark.api.java.JavaSparkContext; import org.geotools.data.Query; import org.geotools.filter.text.ecql.ECQL; import org.locationtech.geomesa.spark.api.java.*; import java.util.HashMap; import java.util.Map; public class GeoMesaJavaSpark { public static void main(String... ags) throws Exception { SparkConf conf = new SparkConf() .setMaster("local[4]”) .setAppName("Sample Application"); conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer"); conf.set("spark.kryo.registrator", "org.locationtech.geomesa.spark.GeoMesaSparkKryoRegistrator"); JavaSparkContext jsc = new JavaSparkContext(conf); MapString, String> params = new HashMap<>(); params.put("instanceId", "local"); params.put("zookeepers","localhost"); params.put("user", "root"); params.put("password", "secret"); params.put("tableName", "geomesa.gdelt"); JavaSpatialRDDProvider provider = JavaGeoMesaSpark.apply((Map)params); String filter = "BBOX(geom, -125, -24, -66, 50) AND dtg >= 2015-12-31T00:00:00Z"; Query query = new Query("gdelt", ECQL.toFilter(filter)); JavaSpatialRDD rdd = provider.rdd(new Configuration(), jsc, params, query); System.out.println(rdd.count()); System.out.println(rdd.first()); System.out.println(rdd.asGeoJSONString().first()); System.out.println(rdd.asKeyValueList().first()); System.out.println(rdd.asKeyValueMap().first()); } }

Original JIRA Issue: https://geomesa.atlassian.net/browse/GEOMESA-2192

Key: GEOMESA-2192
Type: Story
Priority: Major
Status: To Do
Resolution: Unresolved
Reporter: Emilio Lahr-Vivaz
Created: Fri, 23 Feb 2018 09:17:35 -0500
Updated: Tue, 27 Mar 2018 16:44:24 -0400