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//Copyright 2010 Microsoft Corporation
//
//Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
//You may obtain a copy of the License at
//
//http://www.apache.org/licenses/LICENSE-2.0
//
//Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
//"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and limitations under the License.
namespace System.Data.Services.Client
{
#region Namespaces.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Xml;
#endregion Namespaces.
internal static class ClientConvert
{
#if !ASTORIA_LIGHT
private const string SystemDataLinq = "System.Data.Linq, Version=" + FX35Assembly.Version + ", Culture=neutral, PublicKeyToken=" + AssemblyRef.EcmaPublicKeyToken;
#endif
private static readonly Type[] knownTypes = CreateKnownPrimitives();
private static readonly Dictionary<string, Type> namedTypesMap = CreateKnownNamesMap();
#if !ASTORIA_LIGHT
private static bool needSystemDataLinqBinary = true;
#endif
internal enum StorageType
{
Boolean,
Byte,
ByteArray,
Char,
CharArray,
DateTime,
DateTimeOffset,
Decimal,
Double,
Guid,
Int16,
Int32,
Int64,
Single,
String,
SByte,
TimeSpan,
Type,
UInt16,
UInt32,
UInt64,
Uri,
XDocument,
XElement,
#if !ASTORIA_LIGHT
Binary,
#endif
}
internal static object ChangeType(string propertyValue, Type propertyType)
{
Debug.Assert(null != propertyValue, "should never be passed null");
try
{
switch ((StorageType)IndexOfStorage(propertyType))
{
case StorageType.Boolean:
return XmlConvert.ToBoolean(propertyValue);
case StorageType.Byte:
return XmlConvert.ToByte(propertyValue);
case StorageType.ByteArray:
return Convert.FromBase64String(propertyValue);
case StorageType.Char:
return XmlConvert.ToChar(propertyValue);
case StorageType.CharArray:
return propertyValue.ToCharArray();
case StorageType.DateTime:
return XmlConvert.ToDateTime(propertyValue, XmlDateTimeSerializationMode.RoundtripKind);
case StorageType.DateTimeOffset:
return XmlConvert.ToDateTimeOffset(propertyValue);
case StorageType.Decimal:
return XmlConvert.ToDecimal(propertyValue);
case StorageType.Double:
return XmlConvert.ToDouble(propertyValue);
case StorageType.Guid:
return new Guid(propertyValue);
case StorageType.Int16:
return XmlConvert.ToInt16(propertyValue);
case StorageType.Int32:
return XmlConvert.ToInt32(propertyValue);
case StorageType.Int64:
return XmlConvert.ToInt64(propertyValue);
case StorageType.Single:
return XmlConvert.ToSingle(propertyValue);
case StorageType.String:
return propertyValue;
case StorageType.SByte:
return XmlConvert.ToSByte(propertyValue);
case StorageType.TimeSpan:
return XmlConvert.ToTimeSpan(propertyValue);
case StorageType.Type:
return Type.GetType(propertyValue, true);
case StorageType.UInt16:
return XmlConvert.ToUInt16(propertyValue);
case StorageType.UInt32:
return XmlConvert.ToUInt32(propertyValue);
case StorageType.UInt64:
return XmlConvert.ToUInt64(propertyValue);
case StorageType.Uri:
return Util.CreateUri(propertyValue, UriKind.RelativeOrAbsolute);
case StorageType.XDocument:
return (0 < propertyValue.Length ? System.Xml.Linq.XDocument.Parse(propertyValue) : new System.Xml.Linq.XDocument());
case StorageType.XElement:
return System.Xml.Linq.XElement.Parse(propertyValue);
#if !ASTORIA_LIGHT
case StorageType.Binary:
Debug.Assert(null != knownTypes[(int)StorageType.Binary], "null typeof(System.Data.Linq.Binary)");
return Activator.CreateInstance(knownTypes[(int)StorageType.Binary], Convert.FromBase64String(propertyValue));
#endif
default:
Debug.Assert(false, "new StorageType without update to knownTypes");
return propertyValue;
}
}
catch (FormatException ex)
{
propertyValue = (0 == propertyValue.Length ? "String.Empty" : "String");
throw Error.InvalidOperation(Strings.Deserialize_Current(propertyType.ToString(), propertyValue), ex);
}
catch (OverflowException ex)
{
propertyValue = (0 == propertyValue.Length ? "String.Empty" : "String");
throw Error.InvalidOperation(Strings.Deserialize_Current(propertyType.ToString(), propertyValue), ex);
}
}
#if !ASTORIA_LIGHT
internal static bool IsBinaryValue(object value)
{
Debug.Assert(value != null, "value != null");
return StorageType.Binary == (StorageType)IndexOfStorage(value.GetType());
}
internal static bool TryKeyBinaryToString(object binaryValue, out string result)
{
Debug.Assert(binaryValue != null, "binaryValue != null");
Debug.Assert(IsBinaryValue(binaryValue), "IsBinaryValue(binaryValue) - otherwise TryKeyBinaryToString shouldn't have been called.");
const System.Reflection.BindingFlags Flags = System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.InvokeMethod;
byte[] bytes = (byte[])binaryValue.GetType().InvokeMember("ToArray", Flags, null, binaryValue, null, System.Globalization.CultureInfo.InvariantCulture);
return System.Data.Services.Parsing.WebConvert.TryKeyPrimitiveToString(bytes, out result);
}
#endif
internal static bool TryKeyPrimitiveToString(object value, out string result)
{
Debug.Assert(value != null, "value != null");
#if !ASTORIA_LIGHT
if (IsBinaryValue(value))
{
return TryKeyBinaryToString(value, out result);
}
#endif
return System.Data.Services.Parsing.WebConvert.TryKeyPrimitiveToString(value, out result);
}
internal static bool ToNamedType(string typeName, out Type type)
{
type = typeof(string);
return String.IsNullOrEmpty(typeName) || ClientConvert.namedTypesMap.TryGetValue(typeName, out type);
}
internal static string ToTypeName(Type type)
{
Debug.Assert(type != null, "type != null");
foreach (var pair in ClientConvert.namedTypesMap)
{
if (pair.Value == type)
{
return pair.Key;
}
}
return type.FullName;
}
internal static string ToString(object propertyValue, bool atomDateConstruct)
{
Debug.Assert(null != propertyValue, "null should be handled by caller");
switch ((StorageType)IndexOfStorage(propertyValue.GetType()))
{
case StorageType.Boolean:
return XmlConvert.ToString((bool)propertyValue);
case StorageType.Byte:
return XmlConvert.ToString((byte)propertyValue);
case StorageType.ByteArray:
return Convert.ToBase64String((byte[])propertyValue);
case StorageType.Char:
return XmlConvert.ToString((char)propertyValue);
case StorageType.CharArray:
return new String((char[])propertyValue);
case StorageType.DateTime:
DateTime dt = (DateTime)propertyValue;
return XmlConvert.ToString(dt.Kind == DateTimeKind.Unspecified && atomDateConstruct ? new DateTime(dt.Ticks, DateTimeKind.Utc) : dt, XmlDateTimeSerializationMode.RoundtripKind);
case StorageType.DateTimeOffset:
return XmlConvert.ToString((DateTimeOffset)propertyValue);
case StorageType.Decimal:
return XmlConvert.ToString((Decimal)propertyValue);
case StorageType.Double:
return XmlConvert.ToString((Double)propertyValue);
case StorageType.Guid:
return ((Guid)propertyValue).ToString();
case StorageType.Int16:
return XmlConvert.ToString((Int16)propertyValue);
case StorageType.Int32:
return XmlConvert.ToString((Int32)propertyValue);
case StorageType.Int64:
return XmlConvert.ToString((Int64)propertyValue);
case StorageType.Single:
return XmlConvert.ToString((Single)propertyValue);
case StorageType.String:
return (String)propertyValue;
case StorageType.SByte:
return XmlConvert.ToString((SByte)propertyValue);
case StorageType.TimeSpan:
return XmlConvert.ToString((TimeSpan)propertyValue);
case StorageType.Type:
return ((Type)propertyValue).AssemblyQualifiedName;
case StorageType.UInt16:
return XmlConvert.ToString((UInt16)propertyValue);
case StorageType.UInt32:
return XmlConvert.ToString((UInt32)propertyValue);
case StorageType.UInt64:
return XmlConvert.ToString((UInt64)propertyValue);
case StorageType.Uri:
return ((Uri)propertyValue).ToString();
case StorageType.XDocument:
return ((System.Xml.Linq.XDocument)propertyValue).ToString();
case StorageType.XElement:
return ((System.Xml.Linq.XElement)propertyValue).ToString();
#if !ASTORIA_LIGHT
case StorageType.Binary:
Debug.Assert(null != knownTypes[(int)StorageType.Binary], "null typeof(System.Data.Linq.Binary)");
Debug.Assert(knownTypes[(int)StorageType.Binary].IsInstanceOfType(propertyValue), "not IsInstanceOfType System.Data.Linq.Binary");
return propertyValue.ToString();
#endif
default:
Debug.Assert(false, "new StorageType without update to knownTypes");
return propertyValue.ToString();
}
}
internal static bool IsKnownType(Type type)
{
return (0 <= IndexOfStorage(type));
}
internal static bool IsKnownNullableType(Type type)
{
return IsKnownType(Nullable.GetUnderlyingType(type) ?? type);
}
internal static bool IsSupportedPrimitiveTypeForUri(Type type)
{
return Util.ContainsReference(namedTypesMap.Values.ToArray(), type);
}
internal static string GetEdmType(Type propertyType)
{
switch ((StorageType)IndexOfStorage(propertyType))
{
case StorageType.Boolean:
return XmlConstants.EdmBooleanTypeName;
case StorageType.Byte:
return XmlConstants.EdmByteTypeName;
#if !ASTORIA_LIGHT
case StorageType.Binary:
#endif
case StorageType.ByteArray:
return XmlConstants.EdmBinaryTypeName;
case StorageType.DateTime:
return XmlConstants.EdmDateTimeTypeName;
case StorageType.Decimal:
return XmlConstants.EdmDecimalTypeName;
case StorageType.Double:
return XmlConstants.EdmDoubleTypeName;
case StorageType.Guid:
return XmlConstants.EdmGuidTypeName;
case StorageType.Int16:
return XmlConstants.EdmInt16TypeName;
case StorageType.Int32:
return XmlConstants.EdmInt32TypeName;
case StorageType.Int64:
return XmlConstants.EdmInt64TypeName;
case StorageType.Single:
return XmlConstants.EdmSingleTypeName;
case StorageType.SByte:
return XmlConstants.EdmSByteTypeName;
case StorageType.DateTimeOffset:
case StorageType.TimeSpan:
case StorageType.UInt16:
case StorageType.UInt32:
case StorageType.UInt64:
throw new NotSupportedException(Strings.ALinq_CantCastToUnsupportedPrimitive(propertyType.Name));
case StorageType.Char:
case StorageType.CharArray:
case StorageType.String:
case StorageType.Type:
case StorageType.Uri:
case StorageType.XDocument:
case StorageType.XElement:
return null; default:
Debug.Assert(false, "knowntype without reverse mapping");
return null;
}
}
private static Type[] CreateKnownPrimitives()
{
#if !ASTORIA_LIGHT
Type[] types = new Type[1 + (int)StorageType.Binary];
#else
Type[] types = new Type[1 + (int)StorageType.XElement];
#endif
types[(int)StorageType.Boolean] = typeof(Boolean);
types[(int)StorageType.Byte] = typeof(Byte);
types[(int)StorageType.ByteArray] = typeof(Byte[]);
types[(int)StorageType.Char] = typeof(Char);
types[(int)StorageType.CharArray] = typeof(Char[]);
types[(int)StorageType.DateTime] = typeof(DateTime);
types[(int)StorageType.DateTimeOffset] = typeof(DateTimeOffset);
types[(int)StorageType.Decimal] = typeof(Decimal);
types[(int)StorageType.Double] = typeof(Double);
types[(int)StorageType.Guid] = typeof(Guid);
types[(int)StorageType.Int16] = typeof(Int16);
types[(int)StorageType.Int32] = typeof(Int32);
types[(int)StorageType.Int64] = typeof(Int64);
types[(int)StorageType.Single] = typeof(Single);
types[(int)StorageType.String] = typeof(String);
types[(int)StorageType.SByte] = typeof(SByte);
types[(int)StorageType.TimeSpan] = typeof(TimeSpan);
types[(int)StorageType.Type] = typeof(Type);
types[(int)StorageType.UInt16] = typeof(UInt16);
types[(int)StorageType.UInt32] = typeof(UInt32);
types[(int)StorageType.UInt64] = typeof(UInt64);
types[(int)StorageType.Uri] = typeof(Uri);
types[(int)StorageType.XDocument] = typeof(System.Xml.Linq.XDocument);
types[(int)StorageType.XElement] = typeof(System.Xml.Linq.XElement);
#if !ASTORIA_LIGHT
types[(int)StorageType.Binary] = null;
#endif
return types;
}
private static Dictionary<string, Type> CreateKnownNamesMap()
{
Dictionary<string, Type> named = new Dictionary<string, Type>(EqualityComparer<String>.Default);
named.Add(XmlConstants.EdmStringTypeName, typeof(string));
named.Add(XmlConstants.EdmBooleanTypeName, typeof(Boolean));
named.Add(XmlConstants.EdmByteTypeName, typeof(Byte));
named.Add(XmlConstants.EdmDateTimeTypeName, typeof(DateTime));
named.Add(XmlConstants.EdmDecimalTypeName, typeof(Decimal));
named.Add(XmlConstants.EdmDoubleTypeName, typeof(Double));
named.Add(XmlConstants.EdmGuidTypeName, typeof(Guid));
named.Add(XmlConstants.EdmInt16TypeName, typeof(Int16));
named.Add(XmlConstants.EdmInt32TypeName, typeof(Int32));
named.Add(XmlConstants.EdmInt64TypeName, typeof(Int64));
named.Add(XmlConstants.EdmSByteTypeName, typeof(SByte));
named.Add(XmlConstants.EdmSingleTypeName, typeof(Single));
named.Add(XmlConstants.EdmBinaryTypeName, typeof(byte[]));
return named;
}
private static int IndexOfStorage(Type type)
{
int index = Util.IndexOfReference(ClientConvert.knownTypes, type);
#if !ASTORIA_LIGHT
if ((index < 0) && needSystemDataLinqBinary && (type.Name == "Binary"))
{
return LoadSystemDataLinqBinary(type);
}
#endif
return index;
}
#if !ASTORIA_LIGHT
private static int LoadSystemDataLinqBinary(Type type)
{
if ((type.Namespace == "System.Data.Linq") &&
(System.Reflection.AssemblyName.ReferenceMatchesDefinition(
type.Assembly.GetName(), new System.Reflection.AssemblyName(SystemDataLinq))))
{
ClientConvert.knownTypes[(int)StorageType.Binary] = type;
needSystemDataLinqBinary = false;
return (int)StorageType.Binary;
}
return -1;
}
#endif
}
}
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