public TSchemaType Generate <TSchemaType>(Type type)
where TSchemaType : JsonSchema4, new()
{
var schema = new TSchemaType();
var typeDescription = JsonObjectTypeDescription.FromType(type);
schema.Type = typeDescription.Type;
schema.Format = typeDescription.Format;
if (schema.Type.HasFlag(JsonObjectType.Object))
{
schema.Title = type.Name;
foreach (var property in type.GetRuntimeProperties())
{
LoadProperty(property, schema);
}
}
else if (schema.Type.HasFlag(JsonObjectType.Array))
{
schema.Type = JsonObjectType.Array;
var itemType = type.GenericTypeArguments.Length == 0 ? type.GetElementType() : type.GenericTypeArguments[0];
schema.Item = Generate <JsonSchema4>(itemType);
}
TryLoadEnumerations(type, schema);
return(schema);
}
/// <summary>Generates a <see cref="JsonSchema4" /> object for the given type and adds the mapping to the given resolver.</summary>
/// <typeparam name="TSchemaType">The type of the schema type.</typeparam>
/// <param name="type">The type.</param>
/// <param name="schemaResolver">The schema resolver.</param>
/// <returns>The schema.</returns>
/// <exception cref="InvalidOperationException">Could not find value type of dictionary type.</exception>
/// <exception cref="InvalidOperationException">Could not find item type of enumeration type.</exception>
public TSchemaType Generate <TSchemaType>(Type type, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
var schema = new TSchemaType();
var typeDescription = JsonObjectTypeDescription.FromType(type);
schema.Type = typeDescription.Type;
schema.Format = typeDescription.Format;
if (schema.Type.HasFlag(JsonObjectType.Object))
{
if (typeDescription.IsDictionary)
{
GenerateDictionary(type, schema, schemaResolver);
}
else
{
if (type == typeof(object))
{
return(new TSchemaType
{
Type = JsonObjectType.Object,
AllowAdditionalProperties = false
});
}
schema.TypeName = GetTypeName(type);
if (schemaResolver.HasSchema(type))
{
schema.SchemaReference = schemaResolver.GetSchema(type);
return(schema);
}
GenerateObject(type, schema, schemaResolver);
GenerateInheritance(type, schema, schemaResolver);
}
}
else if (schema.Type.HasFlag(JsonObjectType.Array))
{
schema.Type = JsonObjectType.Array;
var itemType = type.GenericTypeArguments.Length == 0 ? type.GetElementType() : type.GenericTypeArguments[0];
if (itemType == null)
{
throw new InvalidOperationException("Could not find item type of enumeration type '" + type.FullName + "'.");
}
schema.Item = Generate <JsonSchema4>(itemType, schemaResolver);
}
TryLoadEnumerations(type, schema);
return(schema);
}
private void LoadProperty <TSchemaType>(PropertyInfo property, TSchemaType parentSchema, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
var propertyType = property.PropertyType;
var propertyTypeDescription = JsonObjectTypeDescription.FromType(propertyType);
var attributes = property.GetCustomAttributes().ToArray();
var jsonProperty = Generate <JsonProperty>(propertyType, schemaResolver);
var propertyName = property.Name;
var jsonPropertyAttribute = attributes.FirstOrDefault(a => a is JsonPropertyAttribute) as JsonPropertyAttribute;
if (jsonPropertyAttribute != null && !string.IsNullOrEmpty(jsonPropertyAttribute.PropertyName))
{
propertyName = jsonPropertyAttribute.PropertyName;
}
parentSchema.Properties.Add(propertyName, jsonProperty);
var requiredAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RequiredAttribute");
if (propertyTypeDescription.IsAlwaysRequired || requiredAttribute != null)
{
parentSchema.RequiredProperties.Add(property.Name);
}
dynamic descriptionAttribute = TryGetAttribute(attributes, "System.ComponentModel.DescriptionAttribute");
if (descriptionAttribute != null)
{
jsonProperty.Description = descriptionAttribute.Description;
}
dynamic regexAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RegularExpressionAttribute");
if (regexAttribute != null)
{
jsonProperty.Pattern = regexAttribute.Pattern;
}
dynamic rangeAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RangeAttribute");
if (rangeAttribute != null)
{
if (rangeAttribute.Minimum != null)
{
jsonProperty.Minimum = rangeAttribute.Minimum;
}
if (rangeAttribute.Maximum != null)
{
jsonProperty.Maximum = rangeAttribute.Maximum;
}
}
}
private void LoadProperty <TSchemaType>(PropertyInfo property, TSchemaType parentSchema, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
var propertyType = property.PropertyType;
var propertyTypeDescription = JsonObjectTypeDescription.FromType(propertyType);
var attributes = property.GetCustomAttributes().ToArray();
var jsonProperty = Generate <JsonProperty>(propertyType, schemaResolver);
var propertyName = JsonPathUtilities.GetPropertyName(property);
parentSchema.Properties.Add(propertyName, jsonProperty);
var requiredAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RequiredAttribute");
if (propertyTypeDescription.IsAlwaysRequired || requiredAttribute != null)
{
parentSchema.RequiredProperties.Add(property.Name);
}
jsonProperty.Description = GetDescription(property, attributes);
dynamic regexAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RegularExpressionAttribute");
if (regexAttribute != null)
{
jsonProperty.Pattern = regexAttribute.Pattern;
}
dynamic rangeAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RangeAttribute");
if (rangeAttribute != null)
{
if (rangeAttribute.Minimum != null)
{
jsonProperty.Minimum = rangeAttribute.Minimum;
}
if (rangeAttribute.Maximum != null)
{
jsonProperty.Maximum = rangeAttribute.Maximum;
}
}
}
/// <summary>Generates a <see cref="JsonSchema4" /> object for the given type and adds the mapping to the given resolver.</summary>
/// <typeparam name="TSchemaType">The type of the schema type.</typeparam>
/// <param name="type">The type.</param>
/// <param name="parentAttributes">The parent property or parameter attributes.</param>
/// <param name="schemaResolver">The schema resolver.</param>
/// <returns>The schema.</returns>
/// <exception cref="InvalidOperationException">Could not find value type of dictionary type.</exception>
/// <exception cref="InvalidOperationException">Could not find item type of array type.</exception>
public TSchemaType Generate <TSchemaType>(Type type, IEnumerable <Attribute> parentAttributes, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
var schema = HandleSpecialTypes <TSchemaType>(type);
if (schema != null)
{
return(schema);
}
schema = new TSchemaType();
var typeDescription = JsonObjectTypeDescription.FromType(type);
schema.Type = typeDescription.Type;
schema.Format = typeDescription.Format;
if (schema.Type.HasFlag(JsonObjectType.Object))
{
if (typeDescription.IsDictionary)
{
GenerateDictionary(type, schema, schemaResolver);
}
else
{
schema.TypeName = GetTypeName(type);
if (schemaResolver.HasSchema(type, false))
{
schema.SchemaReference = schemaResolver.GetSchema(type, false);
return(schema);
}
schema.Description = GetDescription(type.GetTypeInfo(), type.GetTypeInfo().GetCustomAttributes());
GenerateObject(type, schema, schemaResolver);
}
}
else if (schema.Type.HasFlag(JsonObjectType.Array))
{
schema.Type = JsonObjectType.Array;
var genericTypeArguments = GetGenericTypeArguments(type);
var itemType = genericTypeArguments.Length == 0 ? type.GetElementType() : genericTypeArguments[0];
if (itemType == null)
{
throw new InvalidOperationException("Could not find item type of array type '" + type.FullName + "'.");
}
schema.Item = Generate <JsonSchema4>(itemType, schemaResolver);
}
else if (type.GetTypeInfo().IsEnum)
{
var isIntegerEnumeration = IsIntegerEnumeration(parentAttributes) || HasStringEnumConverter(type.GetTypeInfo().GetCustomAttributes());
if (schemaResolver.HasSchema(type, isIntegerEnumeration))
{
schema.Type = isIntegerEnumeration ? JsonObjectType.Integer : JsonObjectType.String;
schema.SchemaReference = schemaResolver.GetSchema(type, isIntegerEnumeration);
return(schema);
}
LoadEnumerations(type, schema, isIntegerEnumeration, parentAttributes);
schema.TypeName = GetTypeName(type);
schemaResolver.AddSchema(type, isIntegerEnumeration, schema);
}
return(schema);
}
private void LoadProperty <TSchemaType>(PropertyInfo property, TSchemaType parentSchema, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
var propertyType = property.PropertyType;
var propertyTypeDescription = JsonObjectTypeDescription.FromType(propertyType);
var attributes = property.GetCustomAttributes().ToArray();
if (attributes.All(a => !(a is JsonIgnoreAttribute)))
{
var jsonProperty = Generate <JsonProperty>(propertyType, property.GetCustomAttributes(), schemaResolver);
var propertyName = JsonPathUtilities.GetPropertyName(property);
parentSchema.Properties.Add(propertyName, jsonProperty);
var jsonPropertyAttribute = property.GetCustomAttribute <JsonPropertyAttribute>();
var isJsonPropertyRequired = jsonPropertyAttribute != null && jsonPropertyAttribute.Required == Required.Always;
var requiredAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RequiredAttribute");
if (propertyTypeDescription.IsAlwaysRequired || requiredAttribute != null || isJsonPropertyRequired)
{
parentSchema.RequiredProperties.Add(propertyName);
}
dynamic displayAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.DisplayAttribute");
if (displayAttribute != null && displayAttribute.Name != null)
{
jsonProperty.Title = displayAttribute.Name;
}
jsonProperty.Description = GetDescription(property, attributes);
dynamic regexAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RegularExpressionAttribute");
if (regexAttribute != null)
{
jsonProperty.Pattern = regexAttribute.Pattern;
}
if (propertyTypeDescription.Type == JsonObjectType.Number || propertyTypeDescription.Type == JsonObjectType.Integer)
{
dynamic rangeAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.RangeAttribute");
if (rangeAttribute != null)
{
if (rangeAttribute.Minimum != null)
{
jsonProperty.Minimum = rangeAttribute.Minimum;
}
if (rangeAttribute.Maximum != null)
{
jsonProperty.Maximum = rangeAttribute.Maximum;
}
}
}
dynamic minLengthAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.MinLengthAttribute");
if (minLengthAttribute != null && minLengthAttribute.Length != null)
{
if (propertyTypeDescription.Type == JsonObjectType.String)
{
jsonProperty.MinLength = minLengthAttribute.Length;
}
else if (propertyTypeDescription.Type == JsonObjectType.Array)
{
jsonProperty.MinItems = minLengthAttribute.Length;
}
}
dynamic maxLengthAttribute = TryGetAttribute(attributes, "System.ComponentModel.DataAnnotations.MaxLengthAttribute");
if (maxLengthAttribute != null && maxLengthAttribute.Length != null)
{
if (propertyTypeDescription.Type == JsonObjectType.String)
{
jsonProperty.MaxLength = maxLengthAttribute.Length;
}
else if (propertyTypeDescription.Type == JsonObjectType.Array)
{
jsonProperty.MaxItems = maxLengthAttribute.Length;
}
}
}
}
/// <summary>Generates a <see cref="JsonSchema4" /> object for the given type and adds the mapping to the given resolver.</summary>
/// <typeparam name="TSchemaType">The type of the schema type.</typeparam>
/// <param name="type">The type.</param>
/// <param name="schemaResolver">The schema resolver.</param>
/// <returns>The schema.</returns>
/// <exception cref="InvalidOperationException">Could not find value type of dictionary type.</exception>
/// <exception cref="InvalidOperationException">Could not find item type of enumeration type.</exception>
public TSchemaType Generate <TSchemaType>(Type type, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
var schema = new TSchemaType();
var typeDescription = JsonObjectTypeDescription.FromType(type);
schema.Type = typeDescription.Type;
schema.Format = typeDescription.Format;
if (schema.Type.HasFlag(JsonObjectType.Object))
{
if (typeDescription.IsDictionary)
{
GenerateDictionary(type, schema, schemaResolver);
}
else
{
if (type == typeof(object))
{
return(new TSchemaType
{
Type = JsonObjectType.Object,
AllowAdditionalProperties = false
});
}
schema.TypeName = GetTypeName(type);
if (schemaResolver.HasSchema(type))
{
schema.SchemaReference = schemaResolver.GetSchema(type);
return(schema);
}
schema.Description = GetDescription(type.GetTypeInfo(), type.GetTypeInfo().GetCustomAttributes());
GenerateObject(type, schema, schemaResolver);
GenerateInheritance(type, schema, schemaResolver);
}
}
else if (schema.Type.HasFlag(JsonObjectType.Array))
{
schema.Type = JsonObjectType.Array;
var itemType = type.GenericTypeArguments.Length == 0 ? type.GetElementType() : type.GenericTypeArguments[0];
if (itemType == null)
{
throw new InvalidOperationException("Could not find item type of enumeration type '" + type.FullName + "'.");
}
schema.Item = Generate <JsonSchema4>(itemType, schemaResolver);
}
else if (type.GetTypeInfo().IsEnum)
{
if (schemaResolver.HasSchema(type))
{
schema.SchemaReference = schemaResolver.GetSchema(type);
return(schema);
}
dynamic jsonConverterAttribute = type.GetTypeInfo().GetCustomAttributes()
.SingleOrDefault(a => a.GetType().Name == "JsonConverterAttribute");
if (jsonConverterAttribute != null)
{
var converterType = (Type)jsonConverterAttribute.ConverterType;
if (converterType.Name == "StringEnumConverter")
{
LoadEnumerations(type, schema);
}
else if (Settings.DefaultEnumHandling == EnumHandling.String)
{
LoadEnumerations(type, schema);
}
}
else if (Settings.DefaultEnumHandling == EnumHandling.String)
{
LoadEnumerations(type, schema);
}
schema.TypeName = type.Name;
schemaResolver.AddSchema(type, schema);
}
return(schema);
}
private void AddPrimitiveParametersFromUri(string name, SwaggerOperation operation, ParameterInfo parameter, JsonObjectTypeDescription typeDescription, SwaggerGenerator swaggerGenerator)
{
if (typeDescription.Type.HasFlag(JsonObjectType.Array))
{
var operationParameter = swaggerGenerator.CreatePrimitiveParameter(name,
parameter.GetXmlDocumentation(), parameter.ParameterType.GetEnumerableItemType(), parameter.GetCustomAttributes().ToList());
operationParameter.Kind = SwaggerParameterKind.Query;
operationParameter.CollectionFormat = SwaggerParameterCollectionFormat.Multi;
operation.Parameters.Add(operationParameter);
}
else
{
foreach (var property in parameter.ParameterType.GetRuntimeProperties())
{
var attributes = property.GetCustomAttributes().ToList();
var fromQueryAttribute = attributes.SingleOrDefault(a => a.GetType().Name == "FromQueryAttribute");
var propertyName = TryGetStringPropertyValue(fromQueryAttribute, "Name") ?? JsonPathUtilities.GetPropertyName(property, _settings.DefaultPropertyNameHandling);
var operationParameter = swaggerGenerator.CreatePrimitiveParameter(propertyName, property.GetXmlSummary(), property.PropertyType, attributes);
// TODO: Check if required can be controlled with mechanisms other than RequiredAttribute
var parameterInfo = JsonObjectTypeDescription.FromType(property.PropertyType, attributes, _settings.DefaultEnumHandling);
var isFileArray = IsFileArray(property.PropertyType, parameterInfo);
if (parameterInfo.Type == JsonObjectType.File || isFileArray)
InitializeFileParameter(operationParameter, isFileArray);
else
operationParameter.Kind = SwaggerParameterKind.Query;
operation.Parameters.Add(operationParameter);
}
}
}
private bool IsFileArray(Type type, JsonObjectTypeDescription typeInfo)
{
var isFormFileCollection = type.Name == "IFormFileCollection";
var isFileArray = typeInfo.Type == JsonObjectType.Array && type.GenericTypeArguments.Any() &&
JsonObjectTypeDescription.FromType(type.GenericTypeArguments[0], null, _settings.DefaultEnumHandling).Type == JsonObjectType.File;
return isFormFileCollection || isFileArray;
}
private bool TryAddFileParameter(JsonObjectTypeDescription info, SwaggerOperation operation, ParameterInfo parameter, SwaggerGenerator swaggerGenerator)
{
var isFileArray = IsFileArray(parameter.ParameterType, info);
if (info.Type == JsonObjectType.File || isFileArray)
{
AddFileParameter(parameter, isFileArray, operation, swaggerGenerator);
return true;
}
return false;
}
/// <exception cref="InvalidOperationException">Could not find item type of array type.</exception>
private TSchemaType Generate <TSchemaType>(Type type, PropertyInfo propertyInfo, ISchemaResolver schemaResolver)
where TSchemaType : JsonSchema4, new()
{
if (type == typeof(object) || type == typeof(JObject))
{
return(new TSchemaType
{
Type = JsonObjectType.Object,
AllowAdditionalProperties = true
});
}
var schema = new TSchemaType();
var typeDescription = JsonObjectTypeDescription.FromType(type);
schema.Type = typeDescription.Type;
schema.Format = typeDescription.Format;
if (schema.Type.HasFlag(JsonObjectType.Object))
{
if (typeDescription.IsDictionary)
{
GenerateDictionary(type, schema, schemaResolver);
}
else
{
schema.TypeName = GetTypeName(type);
if (schemaResolver.HasSchema(type, false))
{
schema.SchemaReference = schemaResolver.GetSchema(type, false);
return(schema);
}
schema.Description = GetDescription(type.GetTypeInfo(), type.GetTypeInfo().GetCustomAttributes());
GenerateObject(type, schema, schemaResolver);
}
}
else if (schema.Type.HasFlag(JsonObjectType.Array))
{
schema.Type = JsonObjectType.Array;
var genericTypeArguments = GetGenericTypeArguments(type);
var itemType = genericTypeArguments.Length == 0 ? type.GetElementType() : genericTypeArguments[0];
if (itemType == null)
{
throw new InvalidOperationException("Could not find item type of array type '" + type.FullName + "'.");
}
schema.Item = Generate <JsonSchema4>(itemType, schemaResolver);
}
else if (type.GetTypeInfo().IsEnum)
{
var isIntegerEnumeration = IsIntegerEnumeration(propertyInfo);
if (schemaResolver.HasSchema(type, isIntegerEnumeration))
{
schema.Type = isIntegerEnumeration ? JsonObjectType.Integer : JsonObjectType.String;
schema.SchemaReference = schemaResolver.GetSchema(type, isIntegerEnumeration);
return(schema);
}
LoadEnumerations(type, schema, isIntegerEnumeration);
schema.TypeName = GetTypeName(type);
schemaResolver.AddSchema(type, isIntegerEnumeration, schema);
}
return(schema);
}
