private void Push(JsonSchema value)
{
_currentSchema = value;
_stack.Add(value);
_resolver.LoadedSchemas.Add(value);
_documentSchemas.Add(value.Location, value);
}
private JsonSchema Pop()
{
JsonSchema poppedSchema = _currentSchema;
_stack.RemoveAt(_stack.Count - 1);
_currentSchema = _stack.LastOrDefault();
return poppedSchema;
}
private void ReferenceOrWriteSchema(JsonSchema schema)
{
if (schema.Id != null && _resolver.GetSchema(schema.Id) != null)
{
_writer.WriteStartObject();
_writer.WritePropertyName(JsonTypeReflector.RefPropertyName);
_writer.WriteValue(schema.Id);
_writer.WriteEndObject();
}
else
WriteSchema(schema);
}
private JsonSchema ResolveReferences(JsonSchema schema)
{
if (schema.DeferredReference != null)
{
var reference = schema.DeferredReference;
var locationReference = (reference.StartsWith("#", StringComparison.Ordinal));
if (locationReference)
reference = UnescapeReference(reference);
var resolvedSchema = _resolver.GetSchema(reference);
if (resolvedSchema == null)
{
if (locationReference)
{
var escapedParts = schema.DeferredReference.TrimStart('#').Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
JToken currentToken = _rootSchema;
foreach (var escapedPart in escapedParts)
{
var part = UnescapeReference(escapedPart);
if (currentToken.Type == JTokenType.Object)
currentToken = currentToken[part];
else if (currentToken.Type == JTokenType.Array || currentToken.Type == JTokenType.Constructor)
{
int index;
if (int.TryParse(part, out index) && index >= 0 && index < currentToken.Count())
currentToken = currentToken[index];
else
currentToken = null;
}
if (currentToken == null) break;
}
if (currentToken != null)
resolvedSchema = BuildSchema(currentToken);
}
if (resolvedSchema == null)
throw new JsonException("Could not resolve schema reference '{0}'.".FormatWith(CultureInfo.InvariantCulture, schema.DeferredReference));
}
schema = resolvedSchema;
}
if (schema.ReferencesResolved) return schema;
schema.ReferencesResolved = true;
if (schema.Extends != null)
for (var i = 0; i < schema.Extends.Count; i++)
schema.Extends[i] = ResolveReferences(schema.Extends[i]);
if (schema.Items != null)
for (var i = 0; i < schema.Items.Count; i++)
schema.Items[i] = ResolveReferences(schema.Items[i]);
if (schema.AdditionalItems != null)
schema.AdditionalItems = ResolveReferences(schema.AdditionalItems);
if (schema.PatternProperties != null)
foreach (var patternProperty in schema.PatternProperties.ToList())
schema.PatternProperties[patternProperty.Key] = ResolveReferences(patternProperty.Value);
if (schema.Properties != null)
foreach (var property in schema.Properties.ToList())
schema.Properties[property.Key] = ResolveReferences(property.Value);
if (schema.AdditionalProperties != null)
schema.AdditionalProperties = ResolveReferences(schema.AdditionalProperties);
return schema;
}
private JsonSchema BuildSchema(JToken token)
{
var schemaObject = token as JObject;
if (schemaObject == null) throw JsonException.Create(token, token.Path, "Expected object while parsing schema object, got {0}.".FormatWith(CultureInfo.InvariantCulture, token.Type));
JToken referenceToken;
if (schemaObject.TryGetValue(JsonTypeReflector.RefPropertyName, out referenceToken))
{
var deferredSchema = new JsonSchema();
deferredSchema.DeferredReference = (string)referenceToken;
return deferredSchema;
}
var location = token.Path.Replace(".", "/").Replace("[", "/").Replace("]", string.Empty);
if (!string.IsNullOrEmpty(location))
location = "/" + location;
location = "#" + location;
JsonSchema existingSchema;
if (_documentSchemas.TryGetValue(location, out existingSchema)) return existingSchema;
Push(new JsonSchema { Location = location });
ProcessSchemaProperties(schemaObject);
return Pop();
}
private JsonSchema ResolveReferences(JsonSchema schema)
{
if (schema.DeferredReference != null)
{
var reference = schema.DeferredReference;
var locationReference = (reference.StartsWith("#", StringComparison.Ordinal));
if (locationReference)
{
reference = UnescapeReference(reference);
}
var resolvedSchema = _resolver.GetSchema(reference);
if (resolvedSchema == null)
{
if (locationReference)
{
var escapedParts = schema.DeferredReference.TrimStart('#').Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
JToken currentToken = _rootSchema;
foreach (var escapedPart in escapedParts)
{
var part = UnescapeReference(escapedPart);
if (currentToken.Type == JTokenType.Object)
{
currentToken = currentToken[part];
}
else if (currentToken.Type == JTokenType.Array || currentToken.Type == JTokenType.Constructor)
{
int index;
if (int.TryParse(part, out index) && index >= 0 && index < currentToken.Count())
{
currentToken = currentToken[index];
}
else
{
currentToken = null;
}
}
if (currentToken == null)
{
break;
}
}
if (currentToken != null)
{
resolvedSchema = BuildSchema(currentToken);
}
}
if (resolvedSchema == null)
{
throw new JsonException("Could not resolve schema reference '{0}'.".FormatWith(CultureInfo.InvariantCulture, schema.DeferredReference));
}
}
schema = resolvedSchema;
}
if (schema.ReferencesResolved)
{
return(schema);
}
schema.ReferencesResolved = true;
if (schema.Extends != null)
{
for (var i = 0; i < schema.Extends.Count; i++)
{
schema.Extends[i] = ResolveReferences(schema.Extends[i]);
}
}
if (schema.Items != null)
{
for (var i = 0; i < schema.Items.Count; i++)
{
schema.Items[i] = ResolveReferences(schema.Items[i]);
}
}
if (schema.AdditionalItems != null)
{
schema.AdditionalItems = ResolveReferences(schema.AdditionalItems);
}
if (schema.PatternProperties != null)
{
foreach (var patternProperty in schema.PatternProperties.ToList())
{
schema.PatternProperties[patternProperty.Key] = ResolveReferences(patternProperty.Value);
}
}
if (schema.Properties != null)
{
foreach (var property in schema.Properties.ToList())
{
schema.Properties[property.Key] = ResolveReferences(property.Value);
}
}
if (schema.AdditionalProperties != null)
{
schema.AdditionalProperties = ResolveReferences(schema.AdditionalProperties);
}
return(schema);
}
public void WriteSchema(JsonSchema schema)
{
ValidationUtils.ArgumentNotNull(schema, "schema");
if (!_resolver.LoadedSchemas.Contains(schema))
_resolver.LoadedSchemas.Add(schema);
_writer.WriteStartObject();
WritePropertyIfNotNull(_writer, JsonSchemaConstants.IdPropertyName, schema.Id);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.TitlePropertyName, schema.Title);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.DescriptionPropertyName, schema.Description);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.RequiredPropertyName, schema.Required);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.ReadOnlyPropertyName, schema.ReadOnly);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.HiddenPropertyName, schema.Hidden);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.TransientPropertyName, schema.Transient);
if (schema.Type != null)
WriteType(JsonSchemaConstants.TypePropertyName, _writer, schema.Type.Value);
if (!schema.AllowAdditionalProperties)
{
_writer.WritePropertyName(JsonSchemaConstants.AdditionalPropertiesPropertyName);
_writer.WriteValue(schema.AllowAdditionalProperties);
}
else
{
if (schema.AdditionalProperties != null)
{
_writer.WritePropertyName(JsonSchemaConstants.AdditionalPropertiesPropertyName);
ReferenceOrWriteSchema(schema.AdditionalProperties);
}
}
if (!schema.AllowAdditionalItems)
{
_writer.WritePropertyName(JsonSchemaConstants.AdditionalItemsPropertyName);
_writer.WriteValue(schema.AllowAdditionalItems);
}
else
{
if (schema.AdditionalItems != null)
{
_writer.WritePropertyName(JsonSchemaConstants.AdditionalItemsPropertyName);
ReferenceOrWriteSchema(schema.AdditionalItems);
}
}
WriteSchemaDictionaryIfNotNull(_writer, JsonSchemaConstants.PropertiesPropertyName, schema.Properties);
WriteSchemaDictionaryIfNotNull(_writer, JsonSchemaConstants.PatternPropertiesPropertyName, schema.PatternProperties);
WriteItems(schema);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.MinimumPropertyName, schema.Minimum);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.MaximumPropertyName, schema.Maximum);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.ExclusiveMinimumPropertyName, schema.ExclusiveMinimum);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.ExclusiveMaximumPropertyName, schema.ExclusiveMaximum);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.MinimumLengthPropertyName, schema.MinimumLength);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.MaximumLengthPropertyName, schema.MaximumLength);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.MinimumItemsPropertyName, schema.MinimumItems);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.MaximumItemsPropertyName, schema.MaximumItems);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.DivisibleByPropertyName, schema.DivisibleBy);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.FormatPropertyName, schema.Format);
WritePropertyIfNotNull(_writer, JsonSchemaConstants.PatternPropertyName, schema.Pattern);
if (schema.Enum != null)
{
_writer.WritePropertyName(JsonSchemaConstants.EnumPropertyName);
_writer.WriteStartArray();
foreach (var token in schema.Enum)
token.WriteTo(_writer);
_writer.WriteEndArray();
}
if (schema.Default != null)
{
_writer.WritePropertyName(JsonSchemaConstants.DefaultPropertyName);
schema.Default.WriteTo(_writer);
}
if (schema.Disallow != null)
WriteType(JsonSchemaConstants.DisallowPropertyName, _writer, schema.Disallow.Value);
if (schema.Extends != null && schema.Extends.Count > 0)
{
_writer.WritePropertyName(JsonSchemaConstants.ExtendsPropertyName);
if (schema.Extends.Count == 1)
ReferenceOrWriteSchema(schema.Extends[0]);
else
{
_writer.WriteStartArray();
foreach (var jsonSchema in schema.Extends)
ReferenceOrWriteSchema(jsonSchema);
_writer.WriteEndArray();
}
}
_writer.WriteEndObject();
}
private void WriteItems(JsonSchema schema)
{
if (schema.Items == null && !schema.PositionalItemsValidation) return;
_writer.WritePropertyName(JsonSchemaConstants.ItemsPropertyName);
if (!schema.PositionalItemsValidation)
{
if (schema.Items != null && schema.Items.Count > 0)
ReferenceOrWriteSchema(schema.Items[0]);
else
{
_writer.WriteStartObject();
_writer.WriteEndObject();
}
return;
}
_writer.WriteStartArray();
if (schema.Items != null)
foreach (var itemSchema in schema.Items)
ReferenceOrWriteSchema(itemSchema);
_writer.WriteEndArray();
}
