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using GeoAPI;

namespace SharpMap.Converters.GeoJSON

{

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using GeoAPI.Geometries;

using Newtonsoft.Json;

//ReSharper disable InconsistentNaming

/// <summary>

/// GeoJSON converter class

/// </summary>

[JsonObject(MemberSerialization = MemberSerialization.OptOut, Description = "featureType")]

public class GeoJSON

{

/// <summary>

/// Get an empty GeoJSON object

/// </summary>

public static GeoJSON Empty

{

get

{

var factory = GeometryServiceProvider.Instance.CreateGeometryFactory();

var geometry = factory.CreateGeometryCollection(new IGeometry[0]);

var dictionary = new Dictionary<string, object>();

return new GeoJSON(geometry, dictionary);

}

}

/// <summary>

/// Gets the <see cref="IGeometry"/> object

/// </summary>

public IGeometry Geometry { get; private set; }

/// <summary>

/// Gets the attributes

/// </summary>

public IDictionary<string, object> Values { get; private set; }

/// <summary>

/// Creates an instance of this class from <paramref name="geometry"/> and <paramref name="values"/>.

/// </summary>

/// <param name="geometry">The geometry</param>

/// <param name="values">The attribute values</param>

public GeoJSON(IGeometry geometry, IDictionary<string, object> values)

{

if (values == null)

throw new ArgumentNullException("values");

Geometry = geometry;

Values = values;

}

/// <summary>

/// Method to set <see cref="Geometry"/> to <paramref name="converted"/>

/// </summary>

/// <param name="converted">The converted geometry</param>

/// <exception cref="ArgumentNullException">Thrown if <paramref name="converted"/> is <value>null</value></exception>

public void SetGeometry(IGeometry converted)

{

if (converted == null)

throw new ArgumentNullException("converted");

Geometry = converted;

}

/// <inheritdoc/>

public override string ToString()

{

var text = Values.Aggregate(new StringBuilder("|"), (sb, i) =>

{

sb.AppendFormat("'{0}'-'{1}'|", i.Key, i.Value);

return sb;

});

return String.Format("Geometry: {0}, Values: {1}", Geometry, text);

}

}

}