/* 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; using MongoDB.Bson.IO; using MongoDB.Bson.Serialization; using MongoDB.Bson.Serialization.Serializers; namespace MongoDB.Driver.GeoJsonObjectModel.Serializers { /// <summary> /// Represents a serializer for a GeoJsonCoordinateReferenceSystem value. /// </summary> public class GeoJsonCoordinateReferenceSystemSerializer : ClassSerializerBase<GeoJsonCoordinateReferenceSystem> { // protected methods /// <summary> /// Gets the actual type. /// </summary> /// <param name="context">The context.</param> /// <returns>The actual type.</returns> protected override Type GetActualType(BsonDeserializationContext context) { var bsonReader = context.Reader; var bookmark = bsonReader.GetBookmark(); bsonReader.ReadStartDocument(); if (bsonReader.FindElement("type")) { var type = bsonReader.ReadString(); bsonReader.ReturnToBookmark(bookmark); switch (type) { case "link": return typeof(GeoJsonLinkedCoordinateReferenceSystem); case "name": return typeof(GeoJsonNamedCoordinateReferenceSystem); default: var message = string.Format("The type field of the GeoJsonCoordinateReferenceSystem is not valid: '{0}'.", type); throw new FormatException(message); } } else { throw new FormatException("GeoJsonCoordinateReferenceSystem object is missing the type field."); } } } }