| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.tinkerpop.gremlin.spark.process.computer; |
| |
| import org.apache.tinkerpop.gremlin.process.computer.MessageScope; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__; |
| import org.apache.tinkerpop.gremlin.spark.AbstractSparkTest; |
| import org.apache.tinkerpop.gremlin.structure.T; |
| import org.apache.tinkerpop.gremlin.structure.Vertex; |
| import org.apache.tinkerpop.gremlin.structure.util.star.StarGraph; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import scala.Tuple2; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * @author Dean Zhu |
| */ |
| public class SparkMessengerTest extends AbstractSparkTest { |
| |
| @Test |
| public void testSparkMessenger() throws Exception { |
| // Define scopes |
| final MessageScope.Local<String> orderSrcMessageScope = MessageScope.Local |
| .of(__::inE, (message, edge) -> { |
| if ("mocked_edge_label1".equals(edge.label())) { |
| return message; |
| } |
| return null; |
| }); |
| |
| // Define star graph |
| final StarGraph starGraph = StarGraph.open(); |
| Object[] vertex0Array = new Object[]{T.id, 0, T.label, "mocked_vertex_label1"}; |
| Object[] vertex1Array = new Object[]{T.id, 1, T.label, "mocked_vertex_label2"}; |
| Object[] vertex2Array = new Object[]{T.id, 2, T.label, "mocked_vertex_label2"}; |
| Vertex vertex0 = starGraph.addVertex(vertex0Array); |
| Vertex vertex1 = starGraph.addVertex(vertex1Array); |
| Vertex vertex2 = starGraph.addVertex(vertex2Array); |
| vertex1.addEdge("mocked_edge_label1", vertex0); |
| vertex2.addEdge("mocked_edge_label2", vertex0); |
| |
| // Create Spark Messenger |
| final SparkMessenger<String> messenger = new SparkMessenger<>(); |
| final List<String> incomingMessages = Arrays.asList("a", "b", "c"); |
| messenger.setVertexAndIncomingMessages(vertex0, incomingMessages); |
| |
| messenger.sendMessage(orderSrcMessageScope, "a"); |
| List<Tuple2<Object, String>> outgoingMessages0 = messenger.getOutgoingMessages(); |
| |
| Assert.assertEquals("a", outgoingMessages0.get(0)._2()); |
| Assert.assertNull(outgoingMessages0.get(1)._2()); |
| } |
| } |