| #region License |
| |
| /* |
| * 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. |
| */ |
| |
| #endregion |
| |
| using Gremlin.Net.Process.Traversal; |
| using Gremlin.Net.Structure; |
| using Gremlin.Net.IntegrationTest.Process.Traversal.DriverRemoteConnection; |
| using Xunit; |
| |
| namespace Gremlin.Net.IntegrationTest.Process.Traversal.Dsl |
| { |
| |
| public static class SocialTraversalExtensions |
| { |
| public static GraphTraversal<Vertex,Vertex> Knows(this GraphTraversal<Vertex,Vertex> t, string personName) |
| { |
| return t.Out("knows").HasLabel("person").Has("name", personName); |
| } |
| |
| public static GraphTraversal<Vertex, int> YoungestFriendsAge(this GraphTraversal<Vertex,Vertex> t) |
| { |
| return t.Out("knows").HasLabel("person").Values<int>("age").Min<int>(); |
| } |
| |
| public static GraphTraversal<Vertex,long> CreatedAtLeast(this GraphTraversal<Vertex,Vertex> t, long number) |
| { |
| return t.OutE("created").Count().Is(P.Gte(number)); |
| } |
| } |
| |
| public static class __Social |
| { |
| public static GraphTraversal<object,Vertex> Knows(string personName) |
| { |
| return __.Out("knows").HasLabel("person").Has("name", personName); |
| } |
| |
| public static GraphTraversal<object, int> YoungestFriendsAge() |
| { |
| return __.Out("knows").HasLabel("person").Values<int>("age").Min<int>(); |
| } |
| |
| public static GraphTraversal<object,long> CreatedAtLeast(long number) |
| { |
| return __.OutE("created").Count().Is(P.Gte(number)); |
| } |
| } |
| |
| public static class SocialTraversalSourceExtensions |
| { |
| public static GraphTraversal<Vertex,Vertex> Persons(this GraphTraversalSource g, params string[] personNames) |
| { |
| GraphTraversal<Vertex,Vertex> t = g.V().HasLabel("person"); |
| |
| if (personNames.Length > 0) |
| { |
| t = t.Has("name", P.Within(personNames)); |
| } |
| |
| return t; |
| } |
| } |
| |
| public class DslTest |
| { |
| private readonly RemoteConnectionFactory _connectionFactory = new RemoteConnectionFactory(); |
| |
| [Fact] |
| public void ShouldUseDsl() |
| { |
| var connection = _connectionFactory.CreateRemoteConnection(); |
| var social = AnonymousTraversalSource.Traversal().WithRemote(connection); |
| |
| Assert.NotNull(social.Persons("marko").Knows("josh").Next()); |
| Assert.Equal(27, social.Persons("marko").YoungestFriendsAge().Next()); |
| Assert.Equal(4, social.Persons().Count().Next()); |
| Assert.Equal(2, social.Persons("marko", "josh").Count().Next()); |
| Assert.Equal(1, social.Persons().Filter(__Social.CreatedAtLeast(2)).Count().Next()); |
| } |
| } |
| } |