Add triangles to business facade

Author: IoannisPanagiotas

algorithms-compute-business-facade/src/main/java/org/neo4j/gds/community/CommunityComputeBusinessFacade.java

@@ -66,10 +66,12 @@
 import org.neo4j.gds.triangle.LocalClusteringCoefficientResult;
 import org.neo4j.gds.triangle.TriangleCountParameters;
 import org.neo4j.gds.triangle.TriangleCountResult;
+import org.neo4j.gds.triangle.TriangleResult;
 
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
+import java.util.stream.Stream;
 
 public class CommunityComputeBusinessFacade {
 
@@ -541,5 +543,33 @@ public <TR> CompletableFuture<TR> triangleCount(
         ).thenApply(resultTransformerBuilder.build(graphResources));
     }
 
+    public <TR> CompletableFuture<TR> triangles(
+        GraphName graphName,
+        GraphParameters graphParameters,
+        Optional<String> relationshipProperty,
+        TriangleCountParameters parameters,
+        JobId jobId,
+        boolean logProgress,
+        ResultTransformerBuilder<TimedAlgorithmResult<Stream<TriangleResult>>, TR> resultTransformerBuilder
+    ) {
+        // Fetch the Graph the algorithm will operate on
+        var graphResources = graphStoreCatalogService.fetchGraphResources(
+            graphName,
+            graphParameters,
+            relationshipProperty,
+            TriangleCountGraphStoreValidation.create(parameters.labelFilter()),
+            Optional.empty(),
+            user,
+            databaseId
+        );
+        var graph = graphResources.graph();
+
+        return computeFacade.triangles(
+            graph,
+            parameters,
+            jobId
+        ).thenApply(resultTransformerBuilder.build(graphResources));
+    }
+
 
 }

algorithms-compute-facade/src/main/java/org/neo4j/gds/community/CommunityComputeFacade.java

@@ -38,12 +38,12 @@
 import org.neo4j.gds.conductance.Conductance;
 import org.neo4j.gds.conductance.ConductanceParameters;
 import org.neo4j.gds.conductance.ConductanceResult;
+import org.neo4j.gds.core.JobId;
 import org.neo4j.gds.core.concurrency.Concurrency;
 import org.neo4j.gds.core.concurrency.DefaultPool;
 import org.neo4j.gds.core.concurrency.ParallelUtil;
 import org.neo4j.gds.core.utils.paged.dss.DisjointSetStruct;
 import org.neo4j.gds.core.utils.paged.dss.HugeAtomicDisjointSetStruct;
-import org.neo4j.gds.core.JobId;
 import org.neo4j.gds.hdbscan.HDBScan;
 import org.neo4j.gds.hdbscan.HDBScanParameters;
 import org.neo4j.gds.hdbscan.Labels;
@@ -605,7 +605,7 @@ CompletableFuture<TimedAlgorithmResult<Stream<TriangleResult>>> triangles(
         JobId jobId) {
 
         if (graph.isEmpty()) {
-            return CompletableFuture.completedFuture(TimedAlgorithmResult.empty( Stream.empty()));
+            return CompletableFuture.completedFuture(TimedAlgorithmResult.empty(Stream.empty()));
         }
 
         var algorithm = TriangleStream.create(