Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / NetFx35 / System.ServiceModel.Web / System / Runtime / Serialization / Json / JsonReaderDelegator.cs / 1 / JsonReaderDelegator.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Runtime.Serialization.Json { using System.Xml; using System.ServiceModel; using System.Runtime.Serialization; using System.Globalization; #if USE_REFEMIT public class JsonReaderDelegator : XmlReaderDelegator #else internal class JsonReaderDelegator : XmlReaderDelegator #endif { public JsonReaderDelegator(XmlReader reader) : base(reader) { } internal XmlDictionaryReaderQuotas ReaderQuotas { get { if (this.dictionaryReader == null) { return null; } else { return dictionaryReader.Quotas; } } } internal static XmlQualifiedName ParseQualifiedName(string qname) { string name, ns; if (string.IsNullOrEmpty(qname)) { name = ns = String.Empty; } else { qname = qname.Trim(); int colon = qname.IndexOf(':'); if (colon >= 0) { name = qname.Substring(0, colon); ns = qname.Substring(colon + 1); } else { name = qname; ns = string.Empty; } } return new XmlQualifiedName(name, ns); } internal override char ReadContentAsChar() { return XmlConvert.ToChar(ReadContentAsString()); } internal override XmlQualifiedName ReadContentAsQName() { return ParseQualifiedName(ReadContentAsString()); } #if USE_REFEMIT public override char ReadElementContentAsChar() #else internal override char ReadElementContentAsChar() #endif { return XmlConvert.ToChar(ReadElementContentAsString()); } #if USE_REFEMIT public override byte[] ReadContentAsBase64() #else internal override byte[] ReadContentAsBase64() #endif { if (isEndOfEmptyElement) return new byte[0]; byte[] buffer; if (dictionaryReader == null) { XmlDictionaryReader tempDictionaryReader = XmlDictionaryReader.CreateDictionaryReader(reader); buffer = ByteArrayHelperWithString.Instance.ReadArray(tempDictionaryReader, JsonGlobals.itemString, string.Empty, tempDictionaryReader.Quotas.MaxArrayLength); } else { buffer = ByteArrayHelperWithString.Instance.ReadArray(dictionaryReader, JsonGlobals.itemString, string.Empty, dictionaryReader.Quotas.MaxArrayLength); } return buffer; } #if USE_REFEMIT public override byte[] ReadElementContentAsBase64() #else internal override byte[] ReadElementContentAsBase64() #endif { if (isEndOfEmptyElement) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString(System.Runtime.Serialization.SR.XmlStartElementExpected, "EndElement"))); } bool isEmptyElement = reader.IsStartElement() && reader.IsEmptyElement; byte[] buffer; if (isEmptyElement) { reader.Read(); buffer = new byte[0]; } else { reader.ReadStartElement(); buffer = ReadContentAsBase64(); reader.ReadEndElement(); } return buffer; } internal override DateTime ReadContentAsDateTime() { return ParseJsonDate(ReadContentAsString()); } internal static DateTime ParseJsonDate(string originalDateTimeValue) { // Dates are represented in JSON as "\/Date(number of ticks)\/". // The number of ticks is the number of milliseconds since January 1, 1970. string dateTimeValue; if (!string.IsNullOrEmpty(originalDateTimeValue)) { dateTimeValue = originalDateTimeValue.Trim(); } else { dateTimeValue = originalDateTimeValue; } if (string.IsNullOrEmpty(dateTimeValue) || !dateTimeValue.StartsWith(JsonGlobals.DateTimeStartGuardReader, StringComparison.Ordinal) || !dateTimeValue.EndsWith(JsonGlobals.DateTimeEndGuardReader, StringComparison.Ordinal)) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError( new FormatException(SR2.GetString(SR2.JsonInvalidDateTimeString, originalDateTimeValue, JsonGlobals.DateTimeStartGuardWriter, JsonGlobals.DateTimeEndGuardWriter))); } string ticksvalue = dateTimeValue.Substring(6, dateTimeValue.Length - 8); long millisecondsSinceUnixEpoch; DateTimeKind dateTimeKind = DateTimeKind.Utc; int indexOfTimeZoneOffset = ticksvalue.IndexOf('+', 1); if (indexOfTimeZoneOffset == -1) { indexOfTimeZoneOffset = ticksvalue.IndexOf('-', 1); } if (indexOfTimeZoneOffset != -1) { dateTimeKind = DateTimeKind.Local; ticksvalue = ticksvalue.Substring(0, indexOfTimeZoneOffset); } try { millisecondsSinceUnixEpoch = Int64.Parse(ticksvalue, CultureInfo.InvariantCulture); } catch (ArgumentException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(ticksvalue, "Int64", exception)); } catch (FormatException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(ticksvalue, "Int64", exception)); } catch (OverflowException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(ticksvalue, "Int64", exception)); } // Convert from # millseconds since epoch to # of 100-nanosecond units, which is what DateTime understands long ticks = millisecondsSinceUnixEpoch * 10000 + JsonGlobals.unixEpochTicks; try { DateTime dateTime = new DateTime(ticks, DateTimeKind.Utc); switch (dateTimeKind) { case DateTimeKind.Local: return dateTime.ToLocalTime(); case DateTimeKind.Unspecified: return DateTime.SpecifyKind(dateTime.ToLocalTime(), DateTimeKind.Unspecified); case DateTimeKind.Utc: default: return dateTime; } } catch (ArgumentException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(ticksvalue, "DateTime", exception)); } } #if USE_REFEMIT public override DateTime ReadElementContentAsDateTime() #else internal override DateTime ReadElementContentAsDateTime() #endif { return ParseJsonDate(ReadElementContentAsString()); } internal bool TryReadJsonDateTimeArray(XmlObjectSerializerReadContext context, XmlDictionaryString itemName, XmlDictionaryString itemNamespace, int arrayLength, out DateTime[] array) { if ((dictionaryReader == null) || (arrayLength != -1)) { array = null; return false; } array = DateTimeArrayJsonHelperWithString.Instance.ReadArray(dictionaryReader, XmlDictionaryString.GetString(itemName), XmlDictionaryString.GetString(itemNamespace), GetArrayLengthQuota(context)); context.IncrementItemCount(array.Length); return true; } class DateTimeArrayJsonHelperWithString : ArrayHelper{ static public readonly DateTimeArrayJsonHelperWithString Instance = new DateTimeArrayJsonHelperWithString(); protected override int ReadArray(XmlDictionaryReader reader, string localName, string namespaceUri, DateTime[] array, int offset, int count) { XmlJsonReader.CheckArray(array, offset, count); int actual = 0; while (actual < count && reader.IsStartElement(JsonGlobals.itemString, string.Empty)) { array[offset + actual] = JsonReaderDelegator.ParseJsonDate(reader.ReadElementContentAsString()); actual++; } return actual; } protected override void WriteArray(XmlDictionaryWriter writer, string prefix, string localName, string namespaceUri, DateTime[] array, int offset, int count) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException()); } } // Overridden because base reader relies on XmlConvert.ToUInt64 for conversion to ulong internal override ulong ReadContentAsUnsignedLong() { string value = reader.ReadContentAsString(); if (value == null || value.Length == 0) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(XmlObjectSerializer.TryAddLineInfo(this, System.ServiceModel.SR.GetString(System.Runtime.Serialization.SR.XmlInvalidConversion, value, "UInt64")))); } try { return ulong.Parse(value, NumberStyles.Float, NumberFormatInfo.InvariantInfo); } catch (ArgumentException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value, "UInt64", exception)); } catch (FormatException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value, "UInt64", exception)); } catch (OverflowException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value, "UInt64", exception)); } } // Overridden because base reader relies on XmlConvert.ToUInt64 for conversion to ulong #if USE_REFEMIT [CLSCompliant(false)] public override UInt64 ReadElementContentAsUnsignedLong() #else internal override UInt64 ReadElementContentAsUnsignedLong() #endif { if (isEndOfEmptyElement) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString(System.Runtime.Serialization.SR.XmlStartElementExpected, "EndElement"))); } string value = reader.ReadElementContentAsString(); if (value == null || value.Length == 0) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(XmlObjectSerializer.TryAddLineInfo(this, System.Runtime.Serialization.SR.GetString(System.Runtime.Serialization.SR.XmlInvalidConversion, value, "UInt64")))); } try { return ulong.Parse(value, NumberStyles.Float, NumberFormatInfo.InvariantInfo); } catch (ArgumentException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value, "UInt64", exception)); } catch (FormatException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value, "UInt64", exception)); } catch (OverflowException exception) { throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value, "UInt64", exception)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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