| #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.Linq; |
| using System.Reflection; |
| using Gremlin.Net.Process.Traversal; |
| |
| namespace Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation |
| { |
| /// <summary> |
| /// Represents a parameter for a traversal token (ie: T.label) |
| /// </summary> |
| internal class TraversalEnumParameter : ITokenParameter, IEquatable<TraversalEnumParameter> |
| { |
| private readonly string _text; |
| |
| private static readonly IDictionary<string, Type> EnumTypesByName = typeof(Scope).GetTypeInfo().Assembly |
| .GetTypes().Where(t => t.GetTypeInfo().IsSubclassOf(typeof(EnumWrapper)) && t.GetTypeInfo().IsPublic) |
| .ToDictionary(e => e.Name, e => e); |
| |
| private readonly object _value; |
| private readonly Type _type; |
| |
| public TraversalEnumParameter(string text) |
| { |
| _text = text; |
| var separatorIndex = text.IndexOf('.'); |
| var enumTypeName = text.Substring(0, separatorIndex); |
| if (!EnumTypesByName.TryGetValue(enumTypeName, out var type)) |
| { |
| throw new KeyNotFoundException($"Enum with name {enumTypeName} not found"); |
| } |
| _type = type; |
| var valueName = text.Substring(separatorIndex + 1); |
| _value = _type.GetProperty(GetCsharpName(valueName)).GetValue(null); |
| } |
| |
| private string GetCsharpName(string valueText) |
| { |
| if (_type == typeof(Direction)) |
| { |
| valueText = valueText.ToLower(); |
| } |
| return TraversalParser.GetCsharpName(valueText); |
| } |
| |
| public bool Equals(TraversalEnumParameter other) |
| { |
| return _text == other._text; |
| } |
| |
| public override bool Equals(object obj) |
| { |
| if (ReferenceEquals(null, obj)) return false; |
| if (ReferenceEquals(this, obj)) return true; |
| if (obj.GetType() != GetType()) return false; |
| return Equals((TraversalEnumParameter) obj); |
| } |
| |
| public override int GetHashCode() |
| { |
| return _text.GetHashCode(); |
| } |
| |
| public object GetValue() |
| { |
| return _value; |
| } |
| |
| public Type GetParameterType() |
| { |
| return _type; |
| } |
| |
| public void SetContextParameterValues(IDictionary<string, object> parameterValues) |
| { |
| |
| } |
| } |
| } |