| #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 System; |
| using System.Collections.Generic; |
| using System.Threading.Tasks; |
| using Gremlin.Net.Driver.Messages; |
| using Gremlin.Net.Driver.ResultsAggregation; |
| using Gremlin.Net.Structure.IO.GraphSON; |
| using Newtonsoft.Json.Linq; |
| |
| namespace Gremlin.Net.Driver |
| { |
| internal class ResponseHandlerForSingleRequestMessage<T> : IResponseHandlerForSingleRequestMessage |
| { |
| public Task<ResultSet<T>> Result => _tcs.Task; |
| |
| private readonly TaskCompletionSource<ResultSet<T>> _tcs = |
| new TaskCompletionSource<ResultSet<T>>(TaskCreationOptions.RunContinuationsAsynchronously); |
| |
| private readonly GraphSONReader _graphSONReader; |
| private bool _isAggregatingSideEffects; |
| private IAggregator _aggregator; |
| private readonly List<T> _result = new List<T>(); |
| |
| public ResponseHandlerForSingleRequestMessage(GraphSONReader graphSonReader) |
| { |
| _graphSONReader = graphSonReader; |
| } |
| |
| public void HandleReceived(ResponseMessage<JToken> received) |
| { |
| var receivedData = typeof(T) == typeof(JToken) |
| ? new[] {received.Result.Data} |
| : _graphSONReader.ToObject(received.Result.Data); |
| #pragma warning disable 612,618 |
| foreach (var d in receivedData) |
| { |
| if (received.Result.Meta.ContainsKey(Tokens.ArgsSideEffectKey)) |
| { |
| if (_aggregator == null) |
| _aggregator = |
| new AggregatorFactory().GetAggregatorFor( |
| (string) received.Result.Meta[Tokens.ArgsAggregateTo]); |
| _aggregator.Add(d); |
| _isAggregatingSideEffects = true; |
| } |
| else |
| { |
| _result.Add(d); |
| } |
| } |
| #pragma warning disable 612,618 |
| } |
| |
| public void Finalize(Dictionary<string, object> statusAttributes) |
| { |
| var resultSet = |
| new ResultSet<T>( |
| _isAggregatingSideEffects ? new List<T> {(T) _aggregator.GetAggregatedResult()} : _result, |
| statusAttributes); |
| _tcs.TrySetResult(resultSet); |
| } |
| |
| public void HandleFailure(Exception objException) |
| { |
| _tcs.TrySetException(objException); |
| } |
| } |
| } |