Added MongoSerializer and Mongo ObjectId backing type

src/StronglyTypedIds.Attributes/StronglyTypedIdBackingType.cs

@@ -18,5 +18,6 @@ public enum StronglyTypedIdBackingType
         Long = 4,
         NullableString = 5,
         MassTransitNewId = 6,
+        ObjectId = 7
     }
 }

src/StronglyTypedIds.Attributes/StronglyTypedIdConverter.cs

@@ -46,5 +46,10 @@ public enum StronglyTypedIdConverter
         /// Creates a Dapper TypeHandler for converting to and from the type
         /// </summary>
         DapperTypeHandler = 32,
+
+        /// <summary>
+        /// Creates a Mongo Serializer for converting string to and from type
+        /// </summary>
+        MongoSerializer = 64,
     }
 }

src/StronglyTypedIds/EmbeddedSources.cs

@@ -25,6 +25,7 @@ internal static class EmbeddedSources
             LoadEmbeddedResource("StronglyTypedIds.Templates.Guid.Guid_EfCoreValueConverter.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.Guid.Guid_DapperTypeHandler.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.Guid.Guid_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.Guid.Guid_MongoSerializer.cs"),
             false
         );
 
@@ -37,6 +38,7 @@ internal static class EmbeddedSources
             LoadEmbeddedResource("StronglyTypedIds.Templates.Int.Int_EfCoreValueConverter.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.Int.Int_DapperTypeHandler.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.Int.Int_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.Int.Int_MongoSerializer.cs"),
             false
         );
 
@@ -49,6 +51,7 @@ internal static class EmbeddedSources
             LoadEmbeddedResource("StronglyTypedIds.Templates.Long.Long_EfCoreValueConverter.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.Long.Long_DapperTypeHandler.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.Long.Long_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.Long.Long_MongoSerializer.cs"),
             false
         );
 
@@ -61,6 +64,7 @@ internal static class EmbeddedSources
             LoadEmbeddedResource("StronglyTypedIds.Templates.String.String_EfCoreValueConverter.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.String.String_DapperTypeHandler.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.String.String_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.String.String_MongoSerializer.cs"),
             false
         );
 
@@ -73,6 +77,7 @@ internal static class EmbeddedSources
             LoadEmbeddedResource("StronglyTypedIds.Templates.NullableString.NullableString_EfCoreValueConverter.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.NullableString.NullableString_DapperTypeHandler.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.NullableString.NullableString_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.NullableString.NullableString_MongoSerializer.cs"),
             true
         );
 
@@ -85,12 +90,27 @@ internal static class EmbeddedSources
             LoadEmbeddedResource("StronglyTypedIds.Templates.NewId.NewId_EfCoreValueConverter.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.NewId.NewId_DapperTypeHandler.cs"),
             LoadEmbeddedResource("StronglyTypedIds.Templates.NewId.NewId_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.NewId.NewId_MongoSerializer.cs"),
+            false
+        );
+
+        internal static readonly ResourceCollection ObjectIdResources = new(
+            AutoGeneratedHeader,
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_Base.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_NewtonsoftJsonConverter.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_SystemTextJsonConverter.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_TypeConverter.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_EfCoreValueConverter.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_DapperTypeHandler.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_IComparable.cs"),
+            LoadEmbeddedResource("StronglyTypedIds.Templates.ObjectId.ObjectId_MongoSerializer.cs"),
             false
         );
 
         internal const string TypeConverterAttributeSource = "    [System.ComponentModel.TypeConverter(typeof(TESTIDTypeConverter))]";
         internal const string NewtonsoftJsonAttributeSource = "    [Newtonsoft.Json.JsonConverter(typeof(TESTIDNewtonsoftJsonConverter))]";
         internal const string SystemTextJsonAttributeSource = "    [System.Text.Json.Serialization.JsonConverter(typeof(TESTIDSystemTextJsonConverter))]";
+        internal const string MongoSerializerAttributeSource = "    [MongoDB.Bson.Serialization.Attributes.BsonSerializer(typeof(TESTIDMongoSerializer))]";
 
         internal static string LoadEmbeddedResource(string resourceName)
         {
@@ -116,6 +136,7 @@ public readonly struct ResourceCollection
             public string TypeConverter { get; }
             public string EfCoreValueConverter { get; }
             public string DapperTypeHandler { get; }
+            public string Mongo { get; }
             public string Comparable { get; }
 
             public ResourceCollection(
@@ -127,6 +148,7 @@ public ResourceCollection(
                 string efCoreValueConverter,
                 string dapperTypeHandler,
                 string comparable,
+                string mongo,
                 bool nullableEnable)
             {
                 BaseId = baseId;
@@ -137,6 +159,7 @@ public ResourceCollection(
                 DapperTypeHandler = dapperTypeHandler;
                 Comparable = comparable;
                 NullableEnable = nullableEnable;
+                Mongo = mongo;
                 Header = header;
             }
         }

src/StronglyTypedIds/SourceGenerationHelper.cs

@@ -32,6 +32,7 @@ public static string CreateId(
                 StronglyTypedIdBackingType.String => EmbeddedSources.StringResources,
                 StronglyTypedIdBackingType.NullableString => EmbeddedSources.NullableStringResources,
                 StronglyTypedIdBackingType.MassTransitNewId => EmbeddedSources.NewIdResources,
+                StronglyTypedIdBackingType.ObjectId => EmbeddedSources.ObjectIdResources,
                 _ => throw new ArgumentException("Unknown backing type: " + backingType, nameof(backingType)),
             };
 
@@ -69,6 +70,7 @@ static string CreateId(
             var useSystemTextJson = converters.IsSet(StronglyTypedIdConverter.SystemTextJson);
             var useEfCoreValueConverter = converters.IsSet(StronglyTypedIdConverter.EfCoreValueConverter);
             var useDapperTypeHandler = converters.IsSet(StronglyTypedIdConverter.DapperTypeHandler);
+            var useMongoSerializer = converters.IsSet(StronglyTypedIdConverter.MongoSerializer);
 
             var useIEquatable = implementations.IsSet(StronglyTypedIdImplementations.IEquatable);
             var useIComparable = implementations.IsSet(StronglyTypedIdImplementations.IComparable);
@@ -121,6 +123,11 @@ static string CreateId(
             {
                 sb.AppendLine(EmbeddedSources.TypeConverterAttributeSource);
             }
+
+            if (useMongoSerializer)
+            {
+                sb.AppendLine(EmbeddedSources.MongoSerializerAttributeSource);
+            }
 
             sb.Append(resources.BaseId);
             ReplaceInterfaces(sb, useIEquatable, useIComparable);
@@ -156,6 +163,11 @@ static string CreateId(
             {
                 sb.AppendLine(resources.SystemTextJson);
             }
+
+            if (useMongoSerializer)
+            {
+                sb.AppendLine(resources.Mongo);
+            }
 
             sb.Replace("TESTID", idName);
             sb.AppendLine(@"    }");

src/StronglyTypedIds/Templates/Guid/Guid_MongoSerializer.cs

@@ -0,0 +1,12 @@
+        class TESTIDMongoSerializer : MongoDB.Bson.Serialization.Serializers.SerializerBase<TESTID>
+        {
+            public override TESTID Deserialize(MongoDB.Bson.Serialization.BsonDeserializationContext context, MongoDB.Bson.Serialization.BsonDeserializationArgs args)
+            {
+                return new TESTID(new System.Guid(context.Reader.ReadString()));
+            }
+
+            public override void Serialize(MongoDB.Bson.Serialization.BsonSerializationContext context, MongoDB.Bson.Serialization.BsonSerializationArgs args, TESTID value)
+            {
+                context.Writer.WriteString(value.Value.ToString());
+            }
+        }

src/StronglyTypedIds/Templates/Int/Int_MongoSerializer.cs

@@ -0,0 +1,12 @@
+        class TESTIDMongoSerializer : MongoDB.Bson.Serialization.Serializers.SerializerBase<TESTID>
+        {
+            public override TESTID Deserialize(MongoDB.Bson.Serialization.BsonDeserializationContext context, MongoDB.Bson.Serialization.BsonDeserializationArgs args)
+            {
+                return new TESTID(context.Reader.ReadInt32());
+            }
+
+            public override void Serialize(MongoDB.Bson.Serialization.BsonSerializationContext context, MongoDB.Bson.Serialization.BsonSerializationArgs args, TESTID value)
+            {
+                context.Writer.WriteInt32(value.Value);
+            }
+        }

src/StronglyTypedIds/Templates/Long/Long_MongoSerializer.cs

@@ -0,0 +1,12 @@
+        class TESTIDMongoSerializer : MongoDB.Bson.Serialization.Serializers.SerializerBase<TESTID>
+        {
+            public override TESTID Deserialize(MongoDB.Bson.Serialization.BsonDeserializationContext context, MongoDB.Bson.Serialization.BsonDeserializationArgs args)
+            {
+                return new TESTID(context.Reader.ReadInt64());
+            }
+
+            public override void Serialize(MongoDB.Bson.Serialization.BsonSerializationContext context, MongoDB.Bson.Serialization.BsonSerializationArgs args, TESTID value)
+            {
+                context.Writer.WriteInt64(value.Value);
+            }
+        }

src/StronglyTypedIds/Templates/NewId/NewId_MongoSerializer.cs

@@ -0,0 +1,12 @@
+        class TESTIDMongoSerializer : MongoDB.Bson.Serialization.Serializers.SerializerBase<TESTID>
+        {
+            public override TESTID Deserialize(MongoDB.Bson.Serialization.BsonDeserializationContext context, MongoDB.Bson.Serialization.BsonDeserializationArgs args)
+            {
+                return new TESTID(new MassTransit.NewId(context.Reader.ReadString()));
+            }
+
+            public override void Serialize(MongoDB.Bson.Serialization.BsonSerializationContext context, MongoDB.Bson.Serialization.BsonSerializationArgs args, TESTID value)
+            {
+                context.Writer.WriteString(value.Value.ToString());
+            }
+        }

src/StronglyTypedIds/Templates/NullableString/NullableString_MongoSerializer.cs

@@ -0,0 +1,19 @@
+        class TESTIDMongoSerializer : MongoDB.Bson.Serialization.Serializers.SerializerBase<TESTID>
+        {
+            public override TESTID Deserialize(MongoDB.Bson.Serialization.BsonDeserializationContext context, MongoDB.Bson.Serialization.BsonDeserializationArgs args)
+            {
+                return new TESTID(context.Reader.ReadString());
+            }
+
+            public override void Serialize(MongoDB.Bson.Serialization.BsonSerializationContext context, MongoDB.Bson.Serialization.BsonSerializationArgs args, TESTID value)
+            {
+                if (value.Value is null)
+                {
+                    context.Writer.WriteNull();
+                }
+                else
+                {
+                    context.Writer.WriteString(value.Value);
+                }
+            }
+        }

src/StronglyTypedIds/Templates/ObjectId/ObjectId_Base.cs

@@ -0,0 +1,24 @@
+    readonly partial struct TESTID : INTERFACES
+    {
+        public MongoDB.Bson.ObjectId Value { get; }
+
+        public TESTID(MongoDB.Bson.ObjectId value)
+        {
+            Value = value;
+        }
+
+        public static TESTID New() => new TESTID(MongoDB.Bson.ObjectId.GenerateNewId());
+        public static readonly TESTID Empty = new TESTID(MongoDB.Bson.ObjectId.Empty);
+
+        public bool Equals(TESTID other) => this.Value.Equals(other.Value);
+        public override bool Equals(object obj)
+        {
+            if (ReferenceEquals(null, obj)) return false;
+            return obj is TESTID other && Equals(other);
+        }
+
+        public override int GetHashCode() => Value.GetHashCode();
+
+        public override string ToString() => Value.ToString();
+        public static bool operator ==(TESTID a, TESTID b) => a.Equals(b);
+        public static bool operator !=(TESTID a, TESTID b) => !(a == b);

src/StronglyTypedIds/Templates/ObjectId/ObjectId_DapperTypeHandler.cs

@@ -0,0 +1,17 @@
+
+        public class DapperTypeHandler : Dapper.SqlMapper.TypeHandler<TESTID>
+        {
+            public override void SetValue(System.Data.IDbDataParameter parameter, TESTID value)
+            {
+                parameter.Value = value.Value == MongoDB.Bson.ObjectId.Empty ? null : value.Value.ToString();
+            }
+
+            public override TESTID Parse(object value)
+            {
+                return value switch
+                {
+                    string stringValue when !string.IsNullOrEmpty(stringValue) => new TESTID(new MongoDB.Bson.ObjectId(stringValue)),
+                    _ => throw new System.InvalidCastException($"Unable to cast object of type {value.GetType()} to TESTID"),
+                };
+            }
+        }

src/StronglyTypedIds/Templates/ObjectId/ObjectId_EfCoreValueConverter.cs

@@ -0,0 +1,11 @@
+
+        public class EfCoreValueConverter : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter<TESTID, string>
+        {
+            public EfCoreValueConverter() : this(null) { }
+            public EfCoreValueConverter(Microsoft.EntityFrameworkCore.Storage.ValueConversion.ConverterMappingHints mappingHints = null)
+                : base(
+                    id => id.Value.ToString(),
+                    value => new TESTID(new MongoDB.Bson.ObjectId(value)),
+                    mappingHints
+                ) { }
+        }

src/StronglyTypedIds/Templates/ObjectId/ObjectId_IComparable.cs

@@ -0,0 +1 @@
+        public int CompareTo(TESTID other) => Value.CompareTo(other.Value);

src/StronglyTypedIds/Templates/ObjectId/ObjectId_MongoSerializer.cs

@@ -0,0 +1,12 @@
+        class TESTIDMongoSerializer : MongoDB.Bson.Serialization.Serializers.SerializerBase<TESTID>
+        {
+            public override TESTID Deserialize(MongoDB.Bson.Serialization.BsonDeserializationContext context, MongoDB.Bson.Serialization.BsonDeserializationArgs args)
+            {
+                return new TESTID(context.Reader.ReadObjectId());
+            }
+
+            public override void Serialize(MongoDB.Bson.Serialization.BsonSerializationContext context, MongoDB.Bson.Serialization.BsonSerializationArgs args, TESTID value)
+            {
+                context.Writer.WriteObjectId(value.Value);
+            }
+        }

src/StronglyTypedIds/Templates/ObjectId/ObjectId_NewtonsoftJsonConverter.cs

@@ -0,0 +1,20 @@
+
+        class TESTIDNewtonsoftJsonConverter : Newtonsoft.Json.JsonConverter
+        {
+            public override bool CanConvert(System.Type objectType)
+            {
+                return objectType == typeof(TESTID);
+            }
+
+            public override void WriteJson(Newtonsoft.Json.JsonWriter writer, object value, Newtonsoft.Json.JsonSerializer serializer)
+            {
+                var id = (TESTID)value;
+                serializer.Serialize(writer, id.Value.ToString());
+            }
+
+            public override object ReadJson(Newtonsoft.Json.JsonReader reader, System.Type objectType, object existingValue, Newtonsoft.Json.JsonSerializer serializer)
+            {
+                var result = serializer.Deserialize<string>(reader);
+                return new TESTID(new MongoDB.Bson.ObjectId(result));
+            }
+        }

src/StronglyTypedIds/Templates/ObjectId/ObjectId_SystemTextJsonConverter.cs

@@ -0,0 +1,20 @@
+
+        class TESTIDSystemTextJsonConverter : System.Text.Json.Serialization.JsonConverter<TESTID>
+        {
+            public override TESTID Read(ref System.Text.Json.Utf8JsonReader reader, System.Type typeToConvert, System.Text.Json.JsonSerializerOptions options)
+            {
+                return new TESTID(new MongoDB.Bson.ObjectId(reader.GetString()));
+            }
+
+            public override void Write(System.Text.Json.Utf8JsonWriter writer, TESTID value, System.Text.Json.JsonSerializerOptions options)
+            {
+                if (value.Value == MongoDB.Bson.ObjectId.Empty)
+                {
+                    writer.WriteNullValue();
+                }
+                else
+                {
+                    writer.WriteStringValue(value.Value.ToString());
+                }
+            }
+        }

src/StronglyTypedIds/Templates/ObjectId/ObjectId_TypeConverter.cs

@@ -0,0 +1,42 @@
+
+        class TESTIDTypeConverter : System.ComponentModel.TypeConverter
+        {
+            public override bool CanConvertFrom(System.ComponentModel.ITypeDescriptorContext context, System.Type sourceType)
+            {
+                return sourceType == typeof(MongoDB.Bson.ObjectId) || sourceType == typeof(string) || base.CanConvertFrom
+                (context, sourceType);
+            }
+
+            public override object ConvertFrom(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
+            {
+                return value switch
+                {
+                    MongoDB.Bson.ObjectId objectIdValue => new TESTID(objectIdValue),
+                    string stringValue when !string.IsNullOrEmpty(stringValue) => new TESTID(new MongoDB.Bson.ObjectId(stringValue)),
+                    _ => base.ConvertFrom(context, culture, value),
+                };
+            }
+
+            public override bool CanConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Type sourceType)
+            {
+                return sourceType == typeof(MongoDB.Bson.ObjectId) || sourceType == typeof(string) || base.CanConvertTo(context, sourceType);
+            }
+
+            public override object ConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, System.Type destinationType)
+            {
+                if (value is TESTID idValue)
+                {
+                    if (destinationType == typeof(MongoDB.Bson.ObjectId))
+                    {
+                        return idValue.Value;
+                    }
+
+                    if (destinationType == typeof(string))
+                    {
+                        return idValue.Value.ToString();
+                    }
+                }
+
+                return base.ConvertTo(context, culture, value, destinationType);
+            }
+        }