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#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion
using System.Collections.Generic;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Utilities;
#if NET20
using Newtonsoft.Json.Utilities.LinqBridge;
#else
using System.Linq;
#endif
namespace Newtonsoft.Json.Schema
{
internal class JsonSchemaWriter
{
private readonly JsonWriter _writer;
private readonly JsonSchemaResolver _resolver;
public JsonSchemaWriter(JsonWriter writer, JsonSchemaResolver resolver)
{
ValidationUtils.ArgumentNotNull(writer, "writer");
_writer = writer;
_resolver = resolver;
}
private void ReferenceOrWriteSchema(JsonSchema schema)
{
if (schema.Id != null && _resolver.GetSchema(schema.Id) != null)
{
_writer.WriteStartObject();
_writer.WritePropertyName(JsonSchemaConstants.ReferencePropertyName);
_writer.WriteValue(schema.Id);
_writer.WriteEndObject();
}
else
{
WriteSchema(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);
}
}
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 (JToken token in schema.Enum)
{
token.WriteTo(_writer);
}
_writer.WriteEndArray();
}
if (schema.Default != null)
{
_writer.WritePropertyName(JsonSchemaConstants.DefaultPropertyName);
schema.Default.WriteTo(_writer);
}
if (schema.Options != null)
{
_writer.WritePropertyName(JsonSchemaConstants.OptionsPropertyName);
_writer.WriteStartArray();
foreach (KeyValuePair<JToken, string> option in schema.Options)
{
_writer.WriteStartObject();
_writer.WritePropertyName(JsonSchemaConstants.OptionValuePropertyName);
option.Key.WriteTo(_writer);
if (option.Value != null)
{
_writer.WritePropertyName(JsonSchemaConstants.OptionLabelPropertyName);
_writer.WriteValue(option.Value);
}
_writer.WriteEndObject();
}
_writer.WriteEndArray();
}
if (schema.Disallow != null)
WriteType(JsonSchemaConstants.DisallowPropertyName, _writer, schema.Disallow.Value);
if (schema.Extends != null)
{
_writer.WritePropertyName(JsonSchemaConstants.ExtendsPropertyName);
ReferenceOrWriteSchema(schema.Extends);
}
_writer.WriteEndObject();
}
private void WriteSchemaDictionaryIfNotNull(JsonWriter writer, string propertyName, IDictionary<string, JsonSchema> properties)
{
if (properties != null)
{
writer.WritePropertyName(propertyName);
writer.WriteStartObject();
foreach (KeyValuePair<string, JsonSchema> property in properties)
{
writer.WritePropertyName(property.Key);
ReferenceOrWriteSchema(property.Value);
}
writer.WriteEndObject();
}
}
private void WriteItems(JsonSchema schema)
{
if (CollectionUtils.IsNullOrEmpty(schema.Items))
return;
_writer.WritePropertyName(JsonSchemaConstants.ItemsPropertyName);
if (schema.Items.Count == 1)
{
ReferenceOrWriteSchema(schema.Items[0]);
return;
}
_writer.WriteStartArray();
foreach (JsonSchema itemSchema in schema.Items)
{
ReferenceOrWriteSchema(itemSchema);
}
_writer.WriteEndArray();
}
private void WriteType(string propertyName, JsonWriter writer, JsonSchemaType type)
{
IList<JsonSchemaType> types;
if (System.Enum.IsDefined(typeof(JsonSchemaType), type))
types = new List<JsonSchemaType> { type };
else
types = EnumUtils.GetFlagsValues(type).Where(v => v != JsonSchemaType.None).ToList();
if (types.Count == 0)
return;
writer.WritePropertyName(propertyName);
if (types.Count == 1)
{
writer.WriteValue(JsonSchemaBuilder.MapType(types[0]));
return;
}
writer.WriteStartArray();
foreach (JsonSchemaType jsonSchemaType in types)
{
writer.WriteValue(JsonSchemaBuilder.MapType(jsonSchemaType));
}
writer.WriteEndArray();
}
private void WritePropertyIfNotNull(JsonWriter writer, string propertyName, object value)
{
if (value != null)
{
writer.WritePropertyName(propertyName);
writer.WriteValue(value);
}
}
}
}
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