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109 changes: 109 additions & 0 deletions
109
src/NetTopologySuite.IO.GeoJSON4STJ/Converters/GeoJsonConverterFactory.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text.Json; | ||
| using System.Text.Json.Serialization; | ||
| using NetTopologySuite.Features; | ||
| using NetTopologySuite.Geometries; | ||
|
|
||
| namespace NetTopologySuite.IO.Converters | ||
| { | ||
| /// <inheritdoc cref="JsonConverterFactory"/>> | ||
| public class GeoJsonConverterFactory : JsonConverterFactory | ||
| { | ||
| /// <summary> | ||
| /// The default name that, when seen on <see cref="IAttributesTable"/> or the "properties" | ||
| /// object of a feature, indicates that it should "really" be the feature's "id", not stored | ||
| /// in "properties" as-is. | ||
| /// </summary> | ||
| public static readonly string DefaultIdPropertyName = "_NetTopologySuite_id"; | ||
|
|
||
| private static readonly HashSet<Type> GeometryTypes = new HashSet<Type> | ||
| { | ||
| typeof(Geometry), | ||
| typeof(Point), | ||
| typeof(LineString), | ||
| typeof(Polygon), | ||
| typeof(MultiPoint), | ||
| typeof(MultiLineString), | ||
| typeof(MultiPolygon), | ||
| typeof(GeometryCollection), | ||
| }; | ||
|
|
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| private readonly GeometryFactory _factory; | ||
|
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| private readonly bool _writeGeometryBBox; | ||
|
|
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| private readonly string _idPropertyName; | ||
|
|
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| /// <summary> | ||
| /// Creates an instance of this class using the defaults. | ||
| /// </summary> | ||
| public GeoJsonConverterFactory() | ||
| : this(NtsGeometryServices.Instance.CreateGeometryFactory(4326), false) | ||
| { | ||
| } | ||
|
|
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| /// <summary> | ||
| /// Creates an instance of this class using the provided <see cref="GeometryFactory"/> and | ||
| /// defaults for other values. | ||
| /// </summary> | ||
| /// <param name="factory"></param> | ||
| public GeoJsonConverterFactory(GeometryFactory factory) | ||
| : this(factory, false) | ||
| { | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Creates an instance of this class using the provided <see cref="GeometryFactory"/>, the | ||
| /// given value for whether or not we should write out a "bbox" for a plain geometry, and | ||
| /// defaults for all other values. | ||
| /// </summary> | ||
| /// <param name="factory"></param> | ||
| /// <param name="writeGeometryBBox"></param> | ||
| public GeoJsonConverterFactory(GeometryFactory factory, bool writeGeometryBBox) | ||
| : this(factory, writeGeometryBBox, DefaultIdPropertyName) | ||
| { | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Creates an instance of this class using the provided <see cref="GeometryFactory"/>, the | ||
| /// given value for whether or not we should write out a "bbox" for a plain geometry, and | ||
| /// the given "magic" string to signal when an <see cref="IAttributesTable"/> property is | ||
| /// actually filling in for a Feature's "id". | ||
| /// </summary> | ||
| /// <param name="factory"></param> | ||
| /// <param name="writeGeometryBBox"></param> | ||
| /// <param name="idPropertyName"></param> | ||
| public GeoJsonConverterFactory(GeometryFactory factory, bool writeGeometryBBox, string idPropertyName) | ||
| { | ||
| _factory = factory; | ||
| _writeGeometryBBox = writeGeometryBBox; | ||
| _idPropertyName = idPropertyName ?? DefaultIdPropertyName; | ||
| } | ||
|
|
||
| ///<inheritdoc cref="JsonConverter.CanConvert(Type)"/> | ||
| public override bool CanConvert(Type typeToConvert) | ||
| { | ||
| return GeometryTypes.Contains(typeToConvert) | ||
| || typeof(IFeature).IsAssignableFrom(typeToConvert) | ||
| || typeToConvert == typeof(FeatureCollection) | ||
| || typeof(IAttributesTable).IsAssignableFrom(typeToConvert); | ||
| } | ||
|
|
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| ///<inheritdoc cref="JsonConverterFactory.CreateConverter(Type, JsonSerializerOptions)"/> | ||
| public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options) | ||
| { | ||
| if (GeometryTypes.Contains(typeToConvert)) | ||
| return new StjGeometryConverter(_factory, _writeGeometryBBox); | ||
| if (typeToConvert == typeof(FeatureCollection)) | ||
| return new StjFeatureCollectionConverter(); | ||
| if (typeof(IFeature).IsAssignableFrom(typeToConvert)) | ||
| return new StjFeatureConverter(_idPropertyName); | ||
| if (typeof(IAttributesTable).IsAssignableFrom(typeToConvert)) | ||
| return new StjAttributesTableConverter(_idPropertyName); | ||
|
|
||
| throw new ArgumentException(nameof(typeToConvert)); | ||
| } | ||
| } | ||
| } |
53 changes: 53 additions & 0 deletions
53
src/NetTopologySuite.IO.GeoJSON4STJ/Converters/GeoJsonObjectType.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| namespace NetTopologySuite.IO.Converters | ||
| { | ||
| /// <summary> | ||
| /// Defines the GeoJSON Objects types as defined in the <a href="https://tools.ietf.org/html/rfc7946#section-3.1">RFC7946 of the Internet Engineering Task Force (IETF)</a>. | ||
| /// </summary> | ||
| internal enum GeoJsonObjectType | ||
| { | ||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.2">Point</a> type. | ||
| /// </summary> | ||
| Point, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.3">MultiPoint</a> type. | ||
| /// </summary> | ||
| MultiPoint, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.4">LineString</a> type. | ||
| /// </summary> | ||
| LineString, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.5">MultiLineString</a> type. | ||
| /// </summary> | ||
| MultiLineString, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.6">Polygon</a> type. | ||
| /// </summary> | ||
| Polygon, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.7">MultiPolygon</a> type. | ||
| /// </summary> | ||
| MultiPolygon, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.1.8">GeometryCollection</a> type. | ||
| /// </summary> | ||
| GeometryCollection, | ||
|
|
||
| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.2">Feature</a> type. | ||
| /// </summary> | ||
| Feature, | ||
|
|
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| /// <summary> | ||
| /// Defines the <a href="https://tools.ietf.org/html/rfc7946#section-3.3">FeatureCollection</a> type. | ||
| /// </summary> | ||
| FeatureCollection | ||
| } | ||
| } |
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