Added a protection against unknown sensors.

rugged-api/src/main/java/org/orekit/rugged/api/Rugged.java

@@ -82,7 +82,7 @@ public interface Rugged {
      * @exception RuggedException if line cannot be localized,
      * if {@link #setGeneralContext(File, InertialFrame, BodyRotatingFrame, Ellipsoid)} has
      * not been called beforehand, or if {@link #setOrbitAndAttitude(List, List)} has not
-     * been called beforehand
+     * been called beforehand, or sensor is unknown
      */
     GroundPoint[] directLocalization(String sensorName, int lineNumber)
         throws RuggedException;
@@ -94,7 +94,7 @@ public interface Rugged {
      * @exception RuggedException if line cannot be localized,
      * if {@link #setGeneralContext(File, InertialFrame, BodyRotatingFrame, Ellipsoid)} has
      * not been called beforehand, or if {@link #setOrbitAndAttitude(List, List)} has not
-     * been called beforehand
+     * been called beforehand, or sensor is unknown
      */
     SensorPixel inverseLocalization(String sensorName, GroundPoint groundPoint)
         throws RuggedException;

rugged-api/src/main/java/org/orekit/rugged/api/RuggedMessages.java

@@ -53,7 +53,8 @@ public enum RuggedMessages implements Localizable {
     INTERNAL_ERROR("internal error, contact maintenance at {0}"),
     OUT_OF_TILE_INDICES("no data at indices [{0}, {1}], tile only covers from [0, 0] to [{2}, {3}] (inclusive)"),
     UNINITIALIZED_CONTEXT("general context has not been initialized"),
-    EMPTY_TILE("tile is empty: {0} ⨉ {1}");
+    EMPTY_TILE("tile is empty: {0} ⨉ {1}"),
+    UNKNOWN_SENSOR("unknown sensor {0}");
 
     // CHECKSTYLE: resume JavadocVariable check
 

rugged-api/src/main/resources/assets/org/orekit/rugged/RuggedMessages_en.utf8

@@ -9,3 +9,6 @@ UNINITIALIZED_CONTEXT = general context has not been initialized
 
 # tile is empty: {0} ⨉ {1}
 EMPTY_TILE = tile is empty: {0} ⨉ {1}
+
+# unknown sensor {0}
+UNKNOWN_SENSOR = unknown sensor {0}

rugged-api/src/main/resources/assets/org/orekit/rugged/RuggedMessages_fr.utf8

@@ -9,3 +9,6 @@ UNINITIALIZED_CONTEXT = le contexte général n''a pas été initialisé
 
 # tile is empty: {0} ⨉ {1}
 EMPTY_TILE = la tuile est vide : {0} ⨉ {1}
+
+# unknown sensor {0}
+UNKNOWN_SENSOR = capteur {0} inconnu

rugged-api/src/test/java/org/orekit/rugged/api/RuggedMessagesTest.java

@@ -29,7 +29,7 @@ public class RuggedMessagesTest {
 
     @Test
     public void testMessageNumber() {
-        Assert.assertEquals(4, RuggedMessages.values().length);
+        Assert.assertEquals(5, RuggedMessages.values().length);
     }
 
     @Test

rugged-core/src/main/java/org/orekit/rugged/core/AbstractRugged.java

@@ -308,6 +308,7 @@ public abstract class AbstractRugged implements Rugged {
         throws RuggedException {
 
         checkContext();
+        final Sensor sensor = getSensor(sensorName);
 
         // TODO: implement direct localization
         throw RuggedException.createInternalError(null);
@@ -320,6 +321,7 @@ public abstract class AbstractRugged implements Rugged {
         throws RuggedException {
 
         checkContext();
+        final Sensor sensor = getSensor(sensorName);
 
         // TODO: implement direct localization
         throw RuggedException.createInternalError(null);
@@ -335,6 +337,19 @@ public abstract class AbstractRugged implements Rugged {
         }
     }
 
+    /** Get a sensor.
+     * @param sensorName sensor name
+     * @return selected sensor
+     * @exception RuggedException if sensor is not known
+     */
+    private Sensor getSensor(final String sensorName) throws RuggedException {
+        final Sensor sensor = sensors.get(sensorName);
+        if (sensor == null) {
+            throw new RuggedException(RuggedMessages.UNKNOWN_SENSOR, sensorName);
+        }
+        return sensor;
+    }
+
     /** Local container for sensor data. */
     private static class Sensor {