pos/is4c-nf/scale-drivers/drivers/NewMagellan/Newtonsoft.Json/JsonValidatingReader.cs
#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;
using System.Collections.Generic;
#if !(NET20 || NET35 || PORTABLE40 || PORTABLE)
using System.Numerics;
#endif
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Schema;
using Newtonsoft.Json.Utilities;
using System.Globalization;
using System.Text.RegularExpressions;
using System.IO;
#if NET20
using Newtonsoft.Json.Utilities.LinqBridge;
#else
using System.Linq;
#endif
namespace Newtonsoft.Json
{
/// <summary>
/// Represents a reader that provides <see cref="JsonSchema"/> validation.
/// </summary>
public class JsonValidatingReader : JsonReader, IJsonLineInfo
{
private class SchemaScope
{
private readonly JTokenType _tokenType;
private readonly IList<JsonSchemaModel> _schemas;
private readonly Dictionary<string, bool> _requiredProperties;
public string CurrentPropertyName { get; set; }
public int ArrayItemCount { get; set; }
public bool IsUniqueArray { get; set; }
public IList<JToken> UniqueArrayItems { get; set; }
public JTokenWriter CurrentItemWriter { get; set; }
public IList<JsonSchemaModel> Schemas
{
get { return _schemas; }
}
public Dictionary<string, bool> RequiredProperties
{
get { return _requiredProperties; }
}
public JTokenType TokenType
{
get { return _tokenType; }
}
public SchemaScope(JTokenType tokenType, IList<JsonSchemaModel> schemas)
{
_tokenType = tokenType;
_schemas = schemas;
_requiredProperties = schemas.SelectMany<JsonSchemaModel, string>(GetRequiredProperties).Distinct().ToDictionary(p => p, p => false);
if (tokenType == JTokenType.Array && schemas.Any(s => s.UniqueItems))
{
IsUniqueArray = true;
UniqueArrayItems = new List<JToken>();
}
}
private IEnumerable<string> GetRequiredProperties(JsonSchemaModel schema)
{
if (schema == null || schema.Properties == null)
return Enumerable.Empty<string>();
return schema.Properties.Where(p => p.Value.Required).Select(p => p.Key);
}
}
private readonly JsonReader _reader;
private readonly Stack<SchemaScope> _stack;
private JsonSchema _schema;
private JsonSchemaModel _model;
private SchemaScope _currentScope;
/// <summary>
/// Sets an event handler for receiving schema validation errors.
/// </summary>
public event ValidationEventHandler ValidationEventHandler;
/// <summary>
/// Gets the text value of the current JSON token.
/// </summary>
/// <value></value>
public override object Value
{
get { return _reader.Value; }
}
/// <summary>
/// Gets the depth of the current token in the JSON document.
/// </summary>
/// <value>The depth of the current token in the JSON document.</value>
public override int Depth
{
get { return _reader.Depth; }
}
/// <summary>
/// Gets the path of the current JSON token.
/// </summary>
public override string Path
{
get { return _reader.Path; }
}
/// <summary>
/// Gets the quotation mark character used to enclose the value of a string.
/// </summary>
/// <value></value>
public override char QuoteChar
{
get { return _reader.QuoteChar; }
protected internal set { }
}
/// <summary>
/// Gets the type of the current JSON token.
/// </summary>
/// <value></value>
public override JsonToken TokenType
{
get { return _reader.TokenType; }
}
/// <summary>
/// Gets the Common Language Runtime (CLR) type for the current JSON token.
/// </summary>
/// <value></value>
public override Type ValueType
{
get { return _reader.ValueType; }
}
private void Push(SchemaScope scope)
{
_stack.Push(scope);
_currentScope = scope;
}
private SchemaScope Pop()
{
SchemaScope poppedScope = _stack.Pop();
_currentScope = (_stack.Count != 0)
? _stack.Peek()
: null;
return poppedScope;
}
private IList<JsonSchemaModel> CurrentSchemas
{
get { return _currentScope.Schemas; }
}
private static readonly IList<JsonSchemaModel> EmptySchemaList = new List<JsonSchemaModel>();
private IList<JsonSchemaModel> CurrentMemberSchemas
{
get
{
if (_currentScope == null)
return new List<JsonSchemaModel>(new[] { _model });
if (_currentScope.Schemas == null || _currentScope.Schemas.Count == 0)
return EmptySchemaList;
switch (_currentScope.TokenType)
{
case JTokenType.None:
return _currentScope.Schemas;
case JTokenType.Object:
{
if (_currentScope.CurrentPropertyName == null)
throw new JsonReaderException("CurrentPropertyName has not been set on scope.");
IList<JsonSchemaModel> schemas = new List<JsonSchemaModel>();
foreach (JsonSchemaModel schema in CurrentSchemas)
{
JsonSchemaModel propertySchema;
if (schema.Properties != null && schema.Properties.TryGetValue(_currentScope.CurrentPropertyName, out propertySchema))
{
schemas.Add(propertySchema);
}
if (schema.PatternProperties != null)
{
foreach (KeyValuePair<string, JsonSchemaModel> patternProperty in schema.PatternProperties)
{
if (Regex.IsMatch(_currentScope.CurrentPropertyName, patternProperty.Key))
{
schemas.Add(patternProperty.Value);
}
}
}
if (schemas.Count == 0 && schema.AllowAdditionalProperties && schema.AdditionalProperties != null)
schemas.Add(schema.AdditionalProperties);
}
return schemas;
}
case JTokenType.Array:
{
IList<JsonSchemaModel> schemas = new List<JsonSchemaModel>();
foreach (JsonSchemaModel schema in CurrentSchemas)
{
if (!schema.PositionalItemsValidation)
{
if (schema.Items != null && schema.Items.Count > 0)
schemas.Add(schema.Items[0]);
}
else
{
if (schema.Items != null && schema.Items.Count > 0)
{
if (schema.Items.Count > (_currentScope.ArrayItemCount - 1))
schemas.Add(schema.Items[_currentScope.ArrayItemCount - 1]);
}
if (schema.AllowAdditionalItems && schema.AdditionalItems != null)
schemas.Add(schema.AdditionalItems);
}
}
return schemas;
}
case JTokenType.Constructor:
return EmptySchemaList;
default:
throw new ArgumentOutOfRangeException("TokenType", "Unexpected token type: {0}".FormatWith(CultureInfo.InvariantCulture, _currentScope.TokenType));
}
}
}
private void RaiseError(string message, JsonSchemaModel schema)
{
IJsonLineInfo lineInfo = this;
string exceptionMessage = (lineInfo.HasLineInfo())
? message + " Line {0}, position {1}.".FormatWith(CultureInfo.InvariantCulture, lineInfo.LineNumber, lineInfo.LinePosition)
: message;
OnValidationEvent(new JsonSchemaException(exceptionMessage, null, Path, lineInfo.LineNumber, lineInfo.LinePosition));
}
private void OnValidationEvent(JsonSchemaException exception)
{
ValidationEventHandler handler = ValidationEventHandler;
if (handler != null)
handler(this, new ValidationEventArgs(exception));
else
throw exception;
}
/// <summary>
/// Initializes a new instance of the <see cref="JsonValidatingReader"/> class that
/// validates the content returned from the given <see cref="JsonReader"/>.
/// </summary>
/// <param name="reader">The <see cref="JsonReader"/> to read from while validating.</param>
public JsonValidatingReader(JsonReader reader)
{
ValidationUtils.ArgumentNotNull(reader, "reader");
_reader = reader;
_stack = new Stack<SchemaScope>();
}
/// <summary>
/// Gets or sets the schema.
/// </summary>
/// <value>The schema.</value>
public JsonSchema Schema
{
get { return _schema; }
set
{
if (TokenType != JsonToken.None)
throw new InvalidOperationException("Cannot change schema while validating JSON.");
_schema = value;
_model = null;
}
}
/// <summary>
/// Gets the <see cref="JsonReader"/> used to construct this <see cref="JsonValidatingReader"/>.
/// </summary>
/// <value>The <see cref="JsonReader"/> specified in the constructor.</value>
public JsonReader Reader
{
get { return _reader; }
}
private void ValidateNotDisallowed(JsonSchemaModel schema)
{
if (schema == null)
return;
JsonSchemaType? currentNodeType = GetCurrentNodeSchemaType();
if (currentNodeType != null)
{
if (JsonSchemaGenerator.HasFlag(schema.Disallow, currentNodeType.Value))
RaiseError("Type {0} is disallowed.".FormatWith(CultureInfo.InvariantCulture, currentNodeType), schema);
}
}
private JsonSchemaType? GetCurrentNodeSchemaType()
{
switch (_reader.TokenType)
{
case JsonToken.StartObject:
return JsonSchemaType.Object;
case JsonToken.StartArray:
return JsonSchemaType.Array;
case JsonToken.Integer:
return JsonSchemaType.Integer;
case JsonToken.Float:
return JsonSchemaType.Float;
case JsonToken.String:
return JsonSchemaType.String;
case JsonToken.Boolean:
return JsonSchemaType.Boolean;
case JsonToken.Null:
return JsonSchemaType.Null;
default:
return null;
}
}
/// <summary>
/// Reads the next JSON token from the stream as a <see cref="Nullable{Int32}"/>.
/// </summary>
/// <returns>A <see cref="Nullable{Int32}"/>.</returns>
public override int? ReadAsInt32()
{
int? i = _reader.ReadAsInt32();
ValidateCurrentToken();
return i;
}
/// <summary>
/// Reads the next JSON token from the stream as a <see cref="Byte"/>[].
/// </summary>
/// <returns>
/// A <see cref="Byte"/>[] or a null reference if the next JSON token is null.
/// </returns>
public override byte[] ReadAsBytes()
{
byte[] data = _reader.ReadAsBytes();
ValidateCurrentToken();
return data;
}
/// <summary>
/// Reads the next JSON token from the stream as a <see cref="Nullable{Decimal}"/>.
/// </summary>
/// <returns>A <see cref="Nullable{Decimal}"/>.</returns>
public override decimal? ReadAsDecimal()
{
decimal? d = _reader.ReadAsDecimal();
ValidateCurrentToken();
return d;
}
/// <summary>
/// Reads the next JSON token from the stream as a <see cref="String"/>.
/// </summary>
/// <returns>A <see cref="String"/>. This method will return <c>null</c> at the end of an array.</returns>
public override string ReadAsString()
{
string s = _reader.ReadAsString();
ValidateCurrentToken();
return s;
}
/// <summary>
/// Reads the next JSON token from the stream as a <see cref="Nullable{DateTime}"/>.
/// </summary>
/// <returns>A <see cref="String"/>. This method will return <c>null</c> at the end of an array.</returns>
public override DateTime? ReadAsDateTime()
{
DateTime? dateTime = _reader.ReadAsDateTime();
ValidateCurrentToken();
return dateTime;
}
#if !NET20
/// <summary>
/// Reads the next JSON token from the stream as a <see cref="Nullable{DateTimeOffset}"/>.
/// </summary>
/// <returns>A <see cref="Nullable{DateTimeOffset}"/>.</returns>
public override DateTimeOffset? ReadAsDateTimeOffset()
{
DateTimeOffset? dateTimeOffset = _reader.ReadAsDateTimeOffset();
ValidateCurrentToken();
return dateTimeOffset;
}
#endif
/// <summary>
/// Reads the next JSON token from the stream.
/// </summary>
/// <returns>
/// true if the next token was read successfully; false if there are no more tokens to read.
/// </returns>
public override bool Read()
{
if (!_reader.Read())
return false;
if (_reader.TokenType == JsonToken.Comment)
return true;
ValidateCurrentToken();
return true;
}
private void ValidateCurrentToken()
{
// first time validate has been called. build model
if (_model == null)
{
JsonSchemaModelBuilder builder = new JsonSchemaModelBuilder();
_model = builder.Build(_schema);
if (!JsonTokenUtils.IsStartToken(_reader.TokenType))
Push(new SchemaScope(JTokenType.None, CurrentMemberSchemas));
}
switch (_reader.TokenType)
{
case JsonToken.StartObject:
ProcessValue();
IList<JsonSchemaModel> objectSchemas = CurrentMemberSchemas.Where(ValidateObject).ToList();
Push(new SchemaScope(JTokenType.Object, objectSchemas));
WriteToken(CurrentSchemas);
break;
case JsonToken.StartArray:
ProcessValue();
IList<JsonSchemaModel> arraySchemas = CurrentMemberSchemas.Where(ValidateArray).ToList();
Push(new SchemaScope(JTokenType.Array, arraySchemas));
WriteToken(CurrentSchemas);
break;
case JsonToken.StartConstructor:
ProcessValue();
Push(new SchemaScope(JTokenType.Constructor, null));
WriteToken(CurrentSchemas);
break;
case JsonToken.PropertyName:
WriteToken(CurrentSchemas);
foreach (JsonSchemaModel schema in CurrentSchemas)
{
ValidatePropertyName(schema);
}
break;
case JsonToken.Raw:
ProcessValue();
break;
case JsonToken.Integer:
ProcessValue();
WriteToken(CurrentMemberSchemas);
foreach (JsonSchemaModel schema in CurrentMemberSchemas)
{
ValidateInteger(schema);
}
break;
case JsonToken.Float:
ProcessValue();
WriteToken(CurrentMemberSchemas);
foreach (JsonSchemaModel schema in CurrentMemberSchemas)
{
ValidateFloat(schema);
}
break;
case JsonToken.String:
ProcessValue();
WriteToken(CurrentMemberSchemas);
foreach (JsonSchemaModel schema in CurrentMemberSchemas)
{
ValidateString(schema);
}
break;
case JsonToken.Boolean:
ProcessValue();
WriteToken(CurrentMemberSchemas);
foreach (JsonSchemaModel schema in CurrentMemberSchemas)
{
ValidateBoolean(schema);
}
break;
case JsonToken.Null:
ProcessValue();
WriteToken(CurrentMemberSchemas);
foreach (JsonSchemaModel schema in CurrentMemberSchemas)
{
ValidateNull(schema);
}
break;
case JsonToken.EndObject:
WriteToken(CurrentSchemas);
foreach (JsonSchemaModel schema in CurrentSchemas)
{
ValidateEndObject(schema);
}
Pop();
break;
case JsonToken.EndArray:
WriteToken(CurrentSchemas);
foreach (JsonSchemaModel schema in CurrentSchemas)
{
ValidateEndArray(schema);
}
Pop();
break;
case JsonToken.EndConstructor:
WriteToken(CurrentSchemas);
Pop();
break;
case JsonToken.Undefined:
case JsonToken.Date:
case JsonToken.Bytes:
// these have no equivalent in JSON schema
WriteToken(CurrentMemberSchemas);
break;
case JsonToken.None:
// no content, do nothing
break;
default:
throw new ArgumentOutOfRangeException();
}
}
private void WriteToken(IList<JsonSchemaModel> schemas)
{
foreach (SchemaScope schemaScope in _stack)
{
bool isInUniqueArray = (schemaScope.TokenType == JTokenType.Array && schemaScope.IsUniqueArray && schemaScope.ArrayItemCount > 0);
if (isInUniqueArray || schemas.Any(s => s.Enum != null))
{
if (schemaScope.CurrentItemWriter == null)
{
if (JsonTokenUtils.IsEndToken(_reader.TokenType))
continue;
schemaScope.CurrentItemWriter = new JTokenWriter();
}
schemaScope.CurrentItemWriter.WriteToken(_reader, false);
// finished writing current item
if (schemaScope.CurrentItemWriter.Top == 0 && _reader.TokenType != JsonToken.PropertyName)
{
JToken finishedItem = schemaScope.CurrentItemWriter.Token;
// start next item with new writer
schemaScope.CurrentItemWriter = null;
if (isInUniqueArray)
{
if (schemaScope.UniqueArrayItems.Contains(finishedItem, JToken.EqualityComparer))
RaiseError("Non-unique array item at index {0}.".FormatWith(CultureInfo.InvariantCulture, schemaScope.ArrayItemCount - 1), schemaScope.Schemas.First(s => s.UniqueItems));
schemaScope.UniqueArrayItems.Add(finishedItem);
}
else if (schemas.Any(s => s.Enum != null))
{
foreach (JsonSchemaModel schema in schemas)
{
if (schema.Enum != null)
{
if (!schema.Enum.ContainsValue(finishedItem, JToken.EqualityComparer))
{
StringWriter sw = new StringWriter(CultureInfo.InvariantCulture);
finishedItem.WriteTo(new JsonTextWriter(sw));
RaiseError("Value {0} is not defined in enum.".FormatWith(CultureInfo.InvariantCulture, sw.ToString()), schema);
}
}
}
}
}
}
}
}
private void ValidateEndObject(JsonSchemaModel schema)
{
if (schema == null)
return;
Dictionary<string, bool> requiredProperties = _currentScope.RequiredProperties;
if (requiredProperties != null)
{
List<string> unmatchedRequiredProperties =
requiredProperties.Where(kv => !kv.Value).Select(kv => kv.Key).ToList();
if (unmatchedRequiredProperties.Count > 0)
RaiseError("Required properties are missing from object: {0}.".FormatWith(CultureInfo.InvariantCulture, string.Join(", ", unmatchedRequiredProperties.ToArray())), schema);
}
}
private void ValidateEndArray(JsonSchemaModel schema)
{
if (schema == null)
return;
int arrayItemCount = _currentScope.ArrayItemCount;
if (schema.MaximumItems != null && arrayItemCount > schema.MaximumItems)
RaiseError("Array item count {0} exceeds maximum count of {1}.".FormatWith(CultureInfo.InvariantCulture, arrayItemCount, schema.MaximumItems), schema);
if (schema.MinimumItems != null && arrayItemCount < schema.MinimumItems)
RaiseError("Array item count {0} is less than minimum count of {1}.".FormatWith(CultureInfo.InvariantCulture, arrayItemCount, schema.MinimumItems), schema);
}
private void ValidateNull(JsonSchemaModel schema)
{
if (schema == null)
return;
if (!TestType(schema, JsonSchemaType.Null))
return;
ValidateNotDisallowed(schema);
}
private void ValidateBoolean(JsonSchemaModel schema)
{
if (schema == null)
return;
if (!TestType(schema, JsonSchemaType.Boolean))
return;
ValidateNotDisallowed(schema);
}
private void ValidateString(JsonSchemaModel schema)
{
if (schema == null)
return;
if (!TestType(schema, JsonSchemaType.String))
return;
ValidateNotDisallowed(schema);
string value = _reader.Value.ToString();
if (schema.MaximumLength != null && value.Length > schema.MaximumLength)
RaiseError("String '{0}' exceeds maximum length of {1}.".FormatWith(CultureInfo.InvariantCulture, value, schema.MaximumLength), schema);
if (schema.MinimumLength != null && value.Length < schema.MinimumLength)
RaiseError("String '{0}' is less than minimum length of {1}.".FormatWith(CultureInfo.InvariantCulture, value, schema.MinimumLength), schema);
if (schema.Patterns != null)
{
foreach (string pattern in schema.Patterns)
{
if (!Regex.IsMatch(value, pattern))
RaiseError("String '{0}' does not match regex pattern '{1}'.".FormatWith(CultureInfo.InvariantCulture, value, pattern), schema);
}
}
}
private void ValidateInteger(JsonSchemaModel schema)
{
if (schema == null)
return;
if (!TestType(schema, JsonSchemaType.Integer))
return;
ValidateNotDisallowed(schema);
object value = _reader.Value;
if (schema.Maximum != null)
{
if (JValue.Compare(JTokenType.Integer, value, schema.Maximum) > 0)
RaiseError("Integer {0} exceeds maximum value of {1}.".FormatWith(CultureInfo.InvariantCulture, value, schema.Maximum), schema);
if (schema.ExclusiveMaximum && JValue.Compare(JTokenType.Integer, value, schema.Maximum) == 0)
RaiseError("Integer {0} equals maximum value of {1} and exclusive maximum is true.".FormatWith(CultureInfo.InvariantCulture, value, schema.Maximum), schema);
}
if (schema.Minimum != null)
{
if (JValue.Compare(JTokenType.Integer, value, schema.Minimum) < 0)
RaiseError("Integer {0} is less than minimum value of {1}.".FormatWith(CultureInfo.InvariantCulture, value, schema.Minimum), schema);
if (schema.ExclusiveMinimum && JValue.Compare(JTokenType.Integer, value, schema.Minimum) == 0)
RaiseError("Integer {0} equals minimum value of {1} and exclusive minimum is true.".FormatWith(CultureInfo.InvariantCulture, value, schema.Minimum), schema);
}
if (schema.DivisibleBy != null)
{
bool notDivisible;
#if !(NET20 || NET35 || PORTABLE40 || PORTABLE)
if (value is BigInteger)
{
// not that this will lose any decimal point on DivisibleBy
// so manually raise an error if DivisibleBy is not an integer and value is not zero
BigInteger i = (BigInteger)value;
bool divisibleNonInteger = !Math.Abs(schema.DivisibleBy.Value - Math.Truncate(schema.DivisibleBy.Value)).Equals(0);
if (divisibleNonInteger)
notDivisible = i != 0;
else
notDivisible = i % new BigInteger(schema.DivisibleBy.Value) != 0;
}
else
#endif
notDivisible = !IsZero(Convert.ToInt64(value, CultureInfo.InvariantCulture) % schema.DivisibleBy.Value);
if (notDivisible)
RaiseError("Integer {0} is not evenly divisible by {1}.".FormatWith(CultureInfo.InvariantCulture, JsonConvert.ToString(value), schema.DivisibleBy), schema);
}
}
private void ProcessValue()
{
if (_currentScope != null && _currentScope.TokenType == JTokenType.Array)
{
_currentScope.ArrayItemCount++;
foreach (JsonSchemaModel currentSchema in CurrentSchemas)
{
// if there is positional validation and the array index is past the number of item validation schemas and there is no additonal items then error
if (currentSchema != null
&& currentSchema.PositionalItemsValidation
&& !currentSchema.AllowAdditionalItems
&& (currentSchema.Items == null || _currentScope.ArrayItemCount - 1 >= currentSchema.Items.Count))
{
RaiseError("Index {0} has not been defined and the schema does not allow additional items.".FormatWith(CultureInfo.InvariantCulture, _currentScope.ArrayItemCount), currentSchema);
}
}
}
}
private void ValidateFloat(JsonSchemaModel schema)
{
if (schema == null)
return;
if (!TestType(schema, JsonSchemaType.Float))
return;
ValidateNotDisallowed(schema);
double value = Convert.ToDouble(_reader.Value, CultureInfo.InvariantCulture);
if (schema.Maximum != null)
{
if (value > schema.Maximum)
RaiseError("Float {0} exceeds maximum value of {1}.".FormatWith(CultureInfo.InvariantCulture, JsonConvert.ToString(value), schema.Maximum), schema);
if (schema.ExclusiveMaximum && value == schema.Maximum)
RaiseError("Float {0} equals maximum value of {1} and exclusive maximum is true.".FormatWith(CultureInfo.InvariantCulture, JsonConvert.ToString(value), schema.Maximum), schema);
}
if (schema.Minimum != null)
{
if (value < schema.Minimum)
RaiseError("Float {0} is less than minimum value of {1}.".FormatWith(CultureInfo.InvariantCulture, JsonConvert.ToString(value), schema.Minimum), schema);
if (schema.ExclusiveMinimum && value == schema.Minimum)
RaiseError("Float {0} equals minimum value of {1} and exclusive minimum is true.".FormatWith(CultureInfo.InvariantCulture, JsonConvert.ToString(value), schema.Minimum), schema);
}
if (schema.DivisibleBy != null)
{
double remainder = FloatingPointRemainder(value, schema.DivisibleBy.Value);
if (!IsZero(remainder))
RaiseError("Float {0} is not evenly divisible by {1}.".FormatWith(CultureInfo.InvariantCulture, JsonConvert.ToString(value), schema.DivisibleBy), schema);
}
}
private static double FloatingPointRemainder(double dividend, double divisor)
{
return dividend - Math.Floor(dividend / divisor) * divisor;
}
private static bool IsZero(double value)
{
const double epsilon = 2.2204460492503131e-016;
return Math.Abs(value) < 20.0 * epsilon;
}
private void ValidatePropertyName(JsonSchemaModel schema)
{
if (schema == null)
return;
string propertyName = Convert.ToString(_reader.Value, CultureInfo.InvariantCulture);
if (_currentScope.RequiredProperties.ContainsKey(propertyName))
_currentScope.RequiredProperties[propertyName] = true;
if (!schema.AllowAdditionalProperties)
{
bool propertyDefinied = IsPropertyDefinied(schema, propertyName);
if (!propertyDefinied)
RaiseError("Property '{0}' has not been defined and the schema does not allow additional properties.".FormatWith(CultureInfo.InvariantCulture, propertyName), schema);
}
_currentScope.CurrentPropertyName = propertyName;
}
private bool IsPropertyDefinied(JsonSchemaModel schema, string propertyName)
{
if (schema.Properties != null && schema.Properties.ContainsKey(propertyName))
return true;
if (schema.PatternProperties != null)
{
foreach (string pattern in schema.PatternProperties.Keys)
{
if (Regex.IsMatch(propertyName, pattern))
return true;
}
}
return false;
}
private bool ValidateArray(JsonSchemaModel schema)
{
if (schema == null)
return true;
return (TestType(schema, JsonSchemaType.Array));
}
private bool ValidateObject(JsonSchemaModel schema)
{
if (schema == null)
return true;
return (TestType(schema, JsonSchemaType.Object));
}
private bool TestType(JsonSchemaModel currentSchema, JsonSchemaType currentType)
{
if (!JsonSchemaGenerator.HasFlag(currentSchema.Type, currentType))
{
RaiseError("Invalid type. Expected {0} but got {1}.".FormatWith(CultureInfo.InvariantCulture, currentSchema.Type, currentType), currentSchema);
return false;
}
return true;
}
bool IJsonLineInfo.HasLineInfo()
{
IJsonLineInfo lineInfo = _reader as IJsonLineInfo;
return lineInfo != null && lineInfo.HasLineInfo();
}
int IJsonLineInfo.LineNumber
{
get
{
IJsonLineInfo lineInfo = _reader as IJsonLineInfo;
return (lineInfo != null) ? lineInfo.LineNumber : 0;
}
}
int IJsonLineInfo.LinePosition
{
get
{
IJsonLineInfo lineInfo = _reader as IJsonLineInfo;
return (lineInfo != null) ? lineInfo.LinePosition : 0;
}
}
}
}