-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
GeoJsonPolygonCoordinatesSerializer.cs
75 lines (68 loc) · 3.14 KB
/
GeoJsonPolygonCoordinatesSerializer.cs
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
/* Copyright 2010-present MongoDB Inc.
*
* Licensed 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.
*/
using System.Collections.Generic;
using MongoDB.Bson;
using MongoDB.Bson.Serialization;
using MongoDB.Bson.Serialization.Serializers;
namespace MongoDB.Driver.GeoJsonObjectModel.Serializers
{
/// <summary>
/// Represents a serializer for a GeoJsonPolygonCoordinates value.
/// </summary>
/// <typeparam name="TCoordinates">The type of the coordinates.</typeparam>
public class GeoJsonPolygonCoordinatesSerializer<TCoordinates> : ClassSerializerBase<GeoJsonPolygonCoordinates<TCoordinates>> where TCoordinates : GeoJsonCoordinates
{
// private fields
private readonly IBsonSerializer<GeoJsonLinearRingCoordinates<TCoordinates>> _linearRingCoordinatesSerializer = BsonSerializer.LookupSerializer<GeoJsonLinearRingCoordinates<TCoordinates>>();
// protected methods
/// <summary>
/// Deserializes a value.
/// </summary>
/// <param name="context">The deserialization context.</param>
/// <param name="args">The deserialization args.</param>
/// <returns>The value.</returns>
protected override GeoJsonPolygonCoordinates<TCoordinates> DeserializeValue(BsonDeserializationContext context, BsonDeserializationArgs args)
{
var bsonReader = context.Reader;
var holes = new List<GeoJsonLinearRingCoordinates<TCoordinates>>();
bsonReader.ReadStartArray();
var exterior = _linearRingCoordinatesSerializer.Deserialize(context);
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var hole = _linearRingCoordinatesSerializer.Deserialize(context);
holes.Add(hole);
}
bsonReader.ReadEndArray();
return new GeoJsonPolygonCoordinates<TCoordinates>(exterior, holes);
}
/// <summary>
/// Serializes a value.
/// </summary>
/// <param name="context">The serialization context.</param>
/// <param name="args">The serialization args.</param>
/// <param name="value">The value.</param>
protected override void SerializeValue(BsonSerializationContext context, BsonSerializationArgs args, GeoJsonPolygonCoordinates<TCoordinates> value)
{
var bsonWriter = context.Writer;
bsonWriter.WriteStartArray();
_linearRingCoordinatesSerializer.Serialize(context, value.Exterior);
foreach (var hole in value.Holes)
{
_linearRingCoordinatesSerializer.Serialize(context, hole);
}
bsonWriter.WriteEndArray();
}
}
}