Fix #9346 clear single metrics api

src/main/java/edu/harvard/iq/dataverse/api/Admin.java

@@ -2063,21 +2063,21 @@ public void run() {
         }
     }
 
-	@DELETE
-	@Path("/clearMetricsCache")
-	public Response clearMetricsCache() {
-		em.createNativeQuery("DELETE FROM metric").executeUpdate();
-		return ok("all metric caches cleared.");
-	}
+    @DELETE
+    @Path("/clearMetricsCache")
+    public Response clearMetricsCache() {
+        em.createNativeQuery("DELETE FROM metric").executeUpdate();
+        return ok("all metric caches cleared.");
+    }
 
-	@DELETE
-	@Path("/clearMetricsCache/{name}")
-	public Response clearMetricsCacheByName(@PathParam("name") String name) {
-		Query deleteQuery = em.createNativeQuery("DELETE FROM metric where metricname = ?");
-		deleteQuery.setParameter(1, name);
-		deleteQuery.executeUpdate();
-		return ok("metric cache " + name + " cleared.");
-	}
+    @DELETE
+    @Path("/clearMetricsCache/{name}")
+    public Response clearMetricsCacheByName(@PathParam("name") String name) {
+        Query deleteQuery = em.createNativeQuery("DELETE FROM metric where name = ?");
+        deleteQuery.setParameter(1, name);
+        deleteQuery.executeUpdate();
+        return ok("metric cache " + name + " cleared.");
+    }
 
     @GET
 	@AuthRequired

src/test/java/edu/harvard/iq/dataverse/api/MetricsIT.java

@@ -255,6 +255,12 @@ public void testGetDataverseBySubject() {
         response = UtilIT.metricsDataversesBySubject("dataLocation=local");
         response.then().assertThat()
                 .statusCode(BAD_REQUEST.getStatusCode());
+
+        // Test cache delete for single metric - just tests that the call succeeds since
+        // the client can't really tell whether it gets a new/cached value
+
+        response = UtilIT.clearMetricCache("dataversesBySubject");
+        response.then().assertThat().statusCode(OK.getStatusCode());
     }
 
     @Test

src/test/java/edu/harvard/iq/dataverse/api/UtilIT.java

@@ -2404,6 +2404,12 @@ static Response clearMetricCache() {
         RequestSpecification requestSpecification = given();
         return requestSpecification.delete("/api/admin/clearMetricsCache");
     }
+
+    static Response clearMetricCache(String name) {
+        RequestSpecification requestSpecification = given();
+        return requestSpecification.delete("/api/admin/clearMetricsCache/" + name);
+    }
+
 
     static Response sitemapUpdate() {
         return given()