Capture sub-graph project metrics

Co-authored-by: Ioannis Panagiotas <ioannis.panagiotas@neotechnology.com>

Author: vnickolov

applications/graph-store-catalog/src/main/java/org/neo4j/gds/applications/graphstorecatalog/DefaultCatalogBusinessFacade.java

@@ -387,12 +387,19 @@ public GraphFilterResult subGraphProject(
             rawConfiguration
         );
 
-        return subGraphProjectApplication.project(
-            taskRegistryFactory,
-            userLogRegistryFactory,
-            configuration,
-            originGraphConfiguration.graphStore()
-        );
+        var subGraphMetric = projectionMetricsService.createSubGraph();
+        try(subGraphMetric) {
+            subGraphMetric.start();
+            return subGraphProjectApplication.project(
+                taskRegistryFactory,
+                userLogRegistryFactory,
+                configuration,
+                originGraphConfiguration.graphStore()
+            );
+        } catch (Exception e) {
+            subGraphMetric.failed();
+            throw e;
+        }
     }
 
     @Override

metrics-api/src/main/java/org/neo4j/gds/metrics/projections/ProjectionMetricsService.java

@@ -42,4 +42,8 @@ public ExecutionMetric createCypherV2() {
         return metricRegistrar.create("cypherV2");
     }
 
+    public ExecutionMetric createSubGraph() {
+        return metricRegistrar.create("subGraph");
+    }
+
 }

metrics-api/src/test/java/org/neo4j/gds/metrics/projections/ProjectionMetricsServiceTest.java

@@ -71,6 +71,18 @@ void shouldCreateCypherV2ProjectionMetric() {
         verifyNoMoreInteractions(registrarMock);
     }
 
+    @Test
+    void shouldCreateSubGraphProjectionMetric() {
+        // given
+        var registrarMock = Mockito.mock(ExecutionMetricRegistrar.class);
+        var metricsService = new ProjectionMetricsService(registrarMock);
 
+        // when
+        metricsService.createSubGraph();
+
+        // then
+        verify(registrarMock, times(1)).create("subGraph");
+        verifyNoMoreInteractions(registrarMock);
+    }
 
 }