Github user dlaboss commented on a diff in the pull request:
https://github.com/apache/incubator-quarks/pull/49#discussion_r57580728
--- Diff:
test/svt/src/main/java/quarks/test/svt/apps/FleetManagementEmbeddedApplication.java
---
@@ -0,0 +1,107 @@
+package quarks.test.svt.apps;
+
+import java.io.PrintWriter;
+import java.util.concurrent.TimeUnit;
+
+import quarks.console.server.HttpServer;
+import quarks.metrics.Metrics;
+import quarks.providers.development.DevelopmentProvider;
+import quarks.test.svt.utils.sensor.gps.GpsSensor;
+import quarks.test.svt.utils.sensor.gps.SimulatedGeofence;
+import quarks.test.svt.utils.sensor.gps.SimulatedGpsSensor;
+import quarks.test.svt.utils.sensor.gps.GpsData;
+import quarks.topology.TStream;
+import quarks.topology.TWindow;
+import quarks.topology.Topology;
+
+
+public class FleetManagementEmbeddedApplication {
+
+ public static void main(String[] args) throws Exception {
+
+ //TODO: make these configurable properties
+ boolean trackGpsLocation = true;
+ boolean trackSpeeding = true;
+ boolean trackGeofence = true;
+ double MILES_PER_HOUR_TO_METERS_PER_SEC_MULTIPLER = 0.44704;
+
+ //TODO - get driverId from input/file and VIN from OBD
+ String driverId = "driver1";
+ String VIN = "123456";
+ int maxSpeedMph = 70;
+
+ boolean console = false;
+ if (args.length == 1 && args[0].toLowerCase().equals("console"))
+ console = true;
+
+ double maxSpeedMetersPerSec = maxSpeedMph *
MILES_PER_HOUR_TO_METERS_PER_SEC_MULTIPLER;
+ System.out.println("maxSpeedMph: " + maxSpeedMph);
+ System.out.println("maxSpeedMetersPerSec: " +
maxSpeedMetersPerSec);
+
+ DevelopmentProvider tp = new DevelopmentProvider();
+ Topology t1 = tp.newTopology("GPS topology");
+
+ // Source 1: GPS data
+ SimulatedGpsSensor g = new SimulatedGpsSensor();
+ TStream<GpsSensor> gpsSensor = t1.poll(() -> g.nextGps(), 500,
TimeUnit.MILLISECONDS);
+
+ // 1.1 Log GPS location
+ if (trackGpsLocation) {
+ TStream<GpsSensor> logGps = gpsSensor.peek(t ->
System.out.println("log GPS: " + t.toString()));
+ logGps.tag("logGps");
+ //TODO: replace print with write to Kafka
--- End diff --
Fwiw...
Seems like this Quarks topology is representing something running on a
vehicle. Do we have reason to believe that a vehicle would ever directly
access a local or remote Kafka broker to Log GPS location? A Kafka client
isn't really a lightweight thing (uses some beefy jars for accessing zookeeper,
... - see connectors/mqtt/ext). For logging, I'd think it more likely that
the topology would log to files or perhaps to a local lightweight database such
as javadb/Derby.
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