ConstraintJsonConverter.cs
4.75 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
using Contentful.Core.Models;
using Contentful.Core.Models.Management;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Contentful.Core.Configuration
{
/// <summary>
/// JsonConverter for converting <see cref="Contentful.Core.Models.Management.IConstraint"/>.
/// </summary>
public class ConstraintJsonConverter : JsonConverter
{
/// <summary>
/// Determines whether this instance can convert the specified object type.
/// </summary>
/// <param name="objectType">The type to convert to.</param>
public override bool CanConvert(Type objectType) => objectType == typeof(IConstraint);
/// <summary>
/// Reads the JSON representation of the object.
/// </summary>
/// <param name="reader">The reader to use.</param>
/// <param name="objectType">The object type to serialize into.</param>
/// <param name="existingValue">The current value of the property.</param>
/// <param name="serializer">The serializer to use.</param>
/// <returns>The deserialized <see cref="Asset"/>.</returns>
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
{
return null;
}
var jObject = JObject.Load(reader);
return ConvertJsonToConstraint(jObject);
}
/// <summary>
/// Writes the JSON representation of the object.
/// </summary>
/// <param name="writer"></param>
/// <param name="value"></param>
/// <param name="serializer"></param>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
var constraint = value as IConstraint;
if (constraint == null)
return;
serializer.Serialize(writer, ConvertConstraintToDynamic(constraint));
}
private IConstraint ConvertJsonToConstraint(JObject jObject)
{
if (jObject["and"] != null)
{
var andConstraint = new AndConstraint();
foreach(var item in jObject["and"])
{
andConstraint.Add(ConvertJsonToConstraint((item as JObject)));
}
return andConstraint;
}
if(jObject["or"] != null)
{
var orConstraint = new OrConstraint();
foreach (var item in jObject["or"])
{
orConstraint.Add(ConvertJsonToConstraint((item as JObject)));
}
return orConstraint;
}
if(jObject["equals"] != null)
{
var equalsConstraint = new EqualsConstraint();
equalsConstraint.Property = jObject["equals"][0]["doc"]?.ToString();
equalsConstraint.ValueToEqual = jObject["equals"][1]?.ToString();
return equalsConstraint;
}
if(jObject["paths"] != null)
{
var pathsConstraint = new PathConstraint();
pathsConstraint.Fields = jObject["paths"][0]["doc"]?.ToString();
return pathsConstraint;
}
if (jObject["not"] != null)
{
var notConstraint = new NotConstraint();
notConstraint.ConstraintToInvert = ConvertJsonToConstraint(jObject["not"] as JObject);
return notConstraint;
}
return null;
}
private dynamic ConvertConstraintToDynamic(IConstraint constraint)
{
if (constraint is AndConstraint)
{
return new { and = (constraint as AndConstraint).Select(c => ConvertConstraintToDynamic(c)) };
}
if(constraint is OrConstraint)
{
return new { or = (constraint as AndConstraint).Select(c => ConvertConstraintToDynamic(c)) };
}
if(constraint is EqualsConstraint)
{
return new { equals = new dynamic[] { new { doc = (constraint as EqualsConstraint).Property }, (constraint as EqualsConstraint).ValueToEqual } };
}
if(constraint is NotConstraint)
{
return new { not = ConvertConstraintToDynamic((constraint as NotConstraint).ConstraintToInvert) };
}
if (constraint is PathConstraint)
{
return new { paths = new dynamic[] { new { doc = (constraint as PathConstraint).Fields } } };
}
return null;
}
}
}