filter engagement counts by region (#180)

Author: mcanoy

src/main/java/com/redhat/labs/lodestar/resource/EngagementResource.java

@@ -100,11 +100,11 @@ public Response getAll(@Context UriInfo uriInfo, @BeanParam ListFilterOptions fi
     @APIResponses(value = { @APIResponse(responseCode = "401", description = "Missing or Invalid JWT"),
             @APIResponse(responseCode = "200", description = "Engagement counts computed.") })
     @Operation(summary = "Gets a map of engagement counts by status")
-    public Map<EngagementState, Integer> countByStatus(@QueryParam(value = "localTime") String localTime) {
+    public Map<EngagementState, Integer> countByStatus(@QueryParam(value = "localTime") String localTime, @QueryParam("region") Set<String> regions) {
 
         Instant currentTime = localTime == null ? Instant.now() : Instant.parse(localTime);
 
-        return engagementService.getEngagementCountByStatus(currentTime);
+        return engagementService.getEngagementCountByStatus(currentTime, regions);
     }
 
     //TODO metrics is saying this is not called

src/main/java/com/redhat/labs/lodestar/rest/client/EngagementApiClient.java

@@ -22,7 +22,7 @@ public interface EngagementApiClient {
     //TODO support time shifting
     @GET
     @Path("count")
-    Map<Engagement.EngagementState, Integer> getEngagementCounts();
+    Map<Engagement.EngagementState, Integer> getEngagementCounts(@QueryParam("region") Set<String> region);
 
     @GET
     @Path("category/{category}")

src/main/java/com/redhat/labs/lodestar/service/EngagementService.java

@@ -313,8 +313,8 @@ public Engagement getByProjectId(int projectId) {
         return  engagementApiClient.getEngagementByProject(projectId);
     }
 
-    public Map<EngagementState, Integer> getEngagementCountByStatus(Instant currentTime) {
-        return engagementApiClient.getEngagementCounts();
+    public Map<EngagementState, Integer> getEngagementCountByStatus(Instant currentTime, Set<String> regions) {
+        return engagementApiClient.getEngagementCounts(regions);
     }
 
     /**

src/test/java/com/redhat/labs/lodestar/resource/EngagementResourceCountTest.java

@@ -3,6 +3,7 @@
 import static io.restassured.RestAssured.given;
 import static org.hamcrest.CoreMatchers.equalTo;
 
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -41,7 +42,7 @@ void resourceCount() {
         counts.put(Engagement.EngagementState.PAST, 2);
         counts.put(Engagement.EngagementState.ANY, 42);
 
-        Mockito.when(engagementApiClient.getEngagementCounts()).thenReturn(counts);
+        Mockito.when(engagementApiClient.getEngagementCounts(Collections.emptySet())).thenReturn(counts);
 
         given().when().auth().oauth2(token).get(url).then().statusCode(200).body("UPCOMING", equalTo(16))
                 .body("ACTIVE", equalTo(8))