1 | using System;
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2 | using System.Collections;
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3 | using System.Collections.Generic;
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4 | using System.Linq;
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5 | using System.Text;
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6 | using Newtonsoft.Json;
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7 | using Newtonsoft.Json.Linq;
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8 |
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9 | namespace HeuristicLab.JsonInterface {
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10 |
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11 | public readonly struct ValidationResult {
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12 |
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13 | public static ValidationResult Successful() => new ValidationResult(true, Enumerable.Empty<string>());
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14 | public static ValidationResult Faulty(IEnumerable<string> errors) => new ValidationResult(false, errors);
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15 | public static ValidationResult Faulty(string error) => new ValidationResult(false, error);
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16 |
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17 | public ValidationResult(bool success, IEnumerable<string> errors) {
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18 | Success = success;
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19 | Errors = errors;
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20 | }
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21 |
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22 | public ValidationResult(bool success, string error) {
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23 | Success = success;
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24 | Errors = Enumerable.Repeat(error, 1);
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25 | }
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26 |
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27 | public bool Success { get; }
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28 | public IEnumerable<string> Errors { get; }
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29 |
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30 | public Exception GenerateException() =>
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31 | new AggregateException(Errors.Select(x => new ArgumentException(x)));
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32 | }
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33 |
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34 | /// <summary>
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35 | /// Main data class for json interface.
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36 | /// </summary>
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37 | public abstract class JsonItem : IJsonItem {
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38 |
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39 | public class JsonItemValidator : IJsonItemValidator {
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40 | private IDictionary<int, bool> Cache = new Dictionary<int, bool>();
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41 | private JsonItem Root { get; set; }
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42 | public JsonItemValidator(JsonItem root) {
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43 | Root = root;
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44 | }
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45 |
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46 | public ValidationResult Validate() {
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47 | List<string> errors = new List<string>();
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48 | bool success = true;
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49 | foreach(var x in Root) {
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50 | JsonItem item = x as JsonItem;
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51 | if(item.Active) {
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52 | var res = ((JsonItem)x).Validate();
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53 | //if one success is false -> whole validation is false
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54 | success = success && res.Success;
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55 | errors.AddRange(res.Errors);
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56 | }
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57 | }
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58 | return new ValidationResult(success, errors);
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59 | }
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60 | }
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61 |
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62 | public virtual string Name { get; set; }
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63 |
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64 | public virtual string Description { get; set; }
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65 |
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66 | private string fixedPath = "";
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67 | public virtual string Path {
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68 | get {
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69 | if (!string.IsNullOrWhiteSpace(fixedPath))
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70 | return fixedPath;
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71 |
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72 | IJsonItem tmp = Parent;
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73 | StringBuilder builder = new StringBuilder(this.Name);
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74 | while(tmp != null) {
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75 | builder.Insert(0, tmp.Name + ".");
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76 | tmp = tmp.Parent;
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77 | }
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78 | return builder.ToString();
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79 | }
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80 | }
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81 |
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82 | [JsonIgnore]
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83 | public virtual IEnumerable<IJsonItem> Children { get; protected set; }
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84 |
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85 | [JsonIgnore]
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86 | public virtual IJsonItem Parent { get; set; }
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87 |
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88 | [JsonIgnore]
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89 | public virtual bool Active { get; set; }
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90 |
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91 | #region Constructors
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92 | public JsonItem() { }
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93 |
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94 | public JsonItem(IEnumerable<IJsonItem> childs) {
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95 | AddChildren(childs);
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96 | }
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97 | #endregion
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98 |
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99 | #region Public Methods
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100 | public void AddChildren(params IJsonItem[] childs) =>
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101 | AddChildren(childs as IEnumerable<IJsonItem>);
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102 |
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103 | public void AddChildren(IEnumerable<IJsonItem> childs) {
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104 | if (childs == null) return;
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105 | if (Children == null)
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106 | Children = new List<IJsonItem>();
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107 | if(Children is IList<IJsonItem> list) {
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108 | foreach (var child in childs) {
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109 | list.Add(child);
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110 | child.Parent = this;
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111 | }
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112 | }
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113 | }
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114 |
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115 | public IJsonItemValidator GetValidator() => new JsonItemValidator(this);
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116 |
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117 | public void FixatePath() => fixedPath = Path;
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118 | public void LoosenPath() => fixedPath = "";
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119 |
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120 | public virtual JObject GenerateJObject() =>
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121 | JObject.FromObject(this, new JsonSerializer() {
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122 | TypeNameHandling = TypeNameHandling.None,
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123 | NullValueHandling = NullValueHandling.Ignore,
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124 | ReferenceLoopHandling = ReferenceLoopHandling.Ignore
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125 | });
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126 |
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127 | public virtual void SetJObject(JObject jObject) { }
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128 | #endregion
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129 |
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130 | #region Abstract Methods
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131 | protected abstract ValidationResult Validate();
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132 | #endregion
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133 |
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134 | #region IEnumerable Support
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135 | public virtual IEnumerator<IJsonItem> GetEnumerator() {
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136 | yield return this;
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137 |
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138 | if (Children != null) {
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139 | foreach (var x in Children) {
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140 | foreach (var c in x) {
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141 | yield return c;
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142 | }
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143 | }
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144 | }
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145 | }
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146 |
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147 | IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
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148 | #endregion
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149 | }
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150 | } |
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