Put the antenna altitude in the listener doc "antenna" field.

workspace/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/habitat/HabitatUploader.java

@@ -169,7 +169,7 @@ public final class HabitatUploader {
             
             // upload payload listener info
             LOG.info("Sending listener info using UUID {}...", uuids.get(0));
-            final ListenerInformationDoc info = new ListenerInformationDoc(date, receiver.getCallsign());
+            final ListenerInformationDoc info = new ListenerInformationDoc(date, receiver);
             final UploadResult infoResult = restClient.uploadDocument(uuids.get(0), info.format());
             LOG.info("Result from uploading listener info: {}", infoResult);
             

workspace/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/habitat/docs/ListenerInformationDoc.java

@@ -1,10 +1,13 @@
 package nl.sikken.bertrik.hab.habitat.docs;
 
 import java.util.Date;
+import java.util.Locale;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 
+import nl.sikken.bertrik.hab.habitat.HabReceiver;
+
 /**
  * Listener information doc.
  * 
@@ -15,7 +18,7 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
  */
 public final class ListenerInformationDoc extends ListenerDoc {
 
-    private final String callSign;
+    private final HabReceiver receiver;
 
     /**
      * Constructor.
@@ -23,16 +26,18 @@ public final class ListenerInformationDoc extends ListenerDoc {
      * @param date the date
      * @param callSign the listener call sign
      */
-    public ListenerInformationDoc(Date date, String callSign) {
+    public ListenerInformationDoc(Date date, HabReceiver receiver) {
         super("listener_information", date);
-        this.callSign = callSign;
+        this.receiver = receiver;
     }
 
     @Override
     protected JsonNode createDataNode() {
         final ObjectNode node = factory().objectNode();
-        node.set("callsign", factory().textNode(callSign));
+        node.set("callsign", factory().textNode(receiver.getCallsign()));
         node.set("radio", factory().textNode("TheThingsNetwork"));
+        final String antenna = String.format(Locale.US, "%.0f m", receiver.getLocation().getAlt());
+        node.set("antenna", factory().textNode(antenna));
         return node;
     }
 

workspace/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/habitat/HabitatUploaderTest.java

@@ -14,6 +14,8 @@ import nl.sikken.bertrik.hab.Sentence;
  */
 public final class HabitatUploaderTest {
     
+    private static final Location LOCATION = new Location(52.0162, 4.4735, 5);
+    
 	/**
 	 * Happy flow scenario for payload upload.
 	 */
@@ -29,7 +31,7 @@ public final class HabitatUploaderTest {
 		// verify upload using the uploader
 		uploader.start();
 		try {
-			final HabReceiver receiver = new HabReceiver("BERTRIK", null);
+			final HabReceiver receiver = new HabReceiver("BERTRIK", LOCATION);
 			final Date date = new Date();
 			final Sentence sentence = new Sentence("NOTAFLIGHT", 1, date, 52.0182307, 4.695772, 1000);
 
@@ -56,7 +58,7 @@ public final class HabitatUploaderTest {
         // verify upload using the uploader
         uploader.start();
         try {
-            final HabReceiver receiver = new HabReceiver("BERTRIK", null);
+            final HabReceiver receiver = new HabReceiver("BERTRIK", LOCATION);
             final Date date = new Date();
             
             uploader.scheduleListenerDataUpload(receiver, date);

workspace/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/habitat/docs/ListenerInfoDocTest.java

@@ -5,6 +5,9 @@ import java.util.Date;
 import org.junit.Assert;
 import org.junit.Test;
 
+import nl.sikken.bertrik.hab.habitat.HabReceiver;
+import nl.sikken.bertrik.hab.habitat.Location;
+
 /**
  * Unit tests for ListenerInfoDoc
  */
@@ -16,7 +19,8 @@ public final class ListenerInfoDocTest {
     @Test
     public void testFormat() {
         final Date date = new Date();
-        final ListenerInformationDoc doc = new ListenerInformationDoc(date, "BERTRIK");
+        final HabReceiver receiver = new HabReceiver("BERTRIK", new Location(52.0162, 4.4753, 0.0));
+        final ListenerInformationDoc doc = new ListenerInformationDoc(date, receiver);
         final String json = doc.format();
 
         Assert.assertNotNull(json);