[WIP] Add roundaboutExits param to MapboxDirections

mapbox/libjava-services/src/main/java/com/mapbox/services/api/directions/v5/DirectionsService.java

@@ -36,6 +36,7 @@ public interface DirectionsService {
    *                         route geometry. Each entry in an annotations field corresponds to a coordinate along the
    *                         route geometry.
    * @param language         Language of returned turn-by-turn text instructions.
+   * @param roundaboutExits  Define if exit on roundabout is allowed.
    * @return The {@link DirectionsResponse} in a Call wrapper.
    * @since 1.0.0
    */
@@ -55,6 +56,7 @@ Call<DirectionsResponse> getCall(
     @Query("bearings") String bearings,
     @Query("continue_straight") Boolean continueStraight,
     @Query("annotations") String annotations,
-    @Query("language") String language
+    @Query("language") String language,
+    @Query("roundabout_exits") Boolean roundaboutExits
   );
 }

mapbox/libjava-services/src/main/java/com/mapbox/services/api/directions/v5/MapboxDirections.java

@@ -76,7 +76,8 @@ private Call<DirectionsResponse> getCall() {
       builder.getBearings(),
       builder.isContinueStraight(),
       builder.getAnnotation(),
-      builder.getLanguage());
+      builder.getLanguage(),
+      builder.isRoundaboutExits());
 
     // Done
     return call;
@@ -149,6 +150,7 @@ public static class Builder<T extends Builder> extends MapboxBuilder {
     private Position destination = null;
     private String[] annotation = null;
     private String language = null;
+    private Boolean roundaboutExits = null;
 
     /**
      * Constructor
@@ -373,6 +375,17 @@ public T setLanguage(String language) {
       return (T) this;
     }
 
+    /**
+     * Optionally, call if you'd like to specify if exit on a roundabout is allowed.
+     *
+     * @param roundaboutExits true if exit on a roundabout is allowed.
+     * @return Builder
+     * @since 2.2.4
+     */
+    public T setRoundaboutExits(Boolean roundaboutExits) {
+      this.roundaboutExits = roundaboutExits;
+      return (T) this;
+    }
     /*
      * Getters, they return the value in a format ready for the API to consume
      */
@@ -590,6 +603,14 @@ public T setBaseUrl(String baseUrl) {
       return (T) this;
     }
 
+    /**
+     * @return true it is possible to exit on the roundabout {@link #setRoundaboutExits(Boolean)}.
+     * @since 2.2.4
+     */
+    public Boolean isRoundaboutExits() {
+      return roundaboutExits;
+    }
+
     /**
      * Build method
      *