1 // 2 // QueryStringConverter.cs 3 // 4 // Author: 5 // Atsushi Enomoto <atsushi@ximian.com> 6 // 7 // Copyright (C) 2008 Novell, Inc (http://www.novell.com) 8 // 9 // Permission is hereby granted, free of charge, to any person obtaining 10 // a copy of this software and associated documentation files (the 11 // "Software"), to deal in the Software without restriction, including 12 // without limitation the rights to use, copy, modify, merge, publish, 13 // distribute, sublicense, and/or sell copies of the Software, and to 14 // permit persons to whom the Software is furnished to do so, subject to 15 // the following conditions: 16 // 17 // The above copyright notice and this permission notice shall be 18 // included in all copies or substantial portions of the Software. 19 // 20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 27 // 28 using System; 29 using System.ComponentModel; 30 using System.Globalization; 31 using System.ServiceModel; 32 using System.ServiceModel.Description; 33 34 namespace System.ServiceModel.Dispatcher 35 { 36 public class QueryStringConverter 37 { 38 // "Service Operation Parameters and URLs" 39 // http://msdn2.microsoft.com/en-us/library/bb412172.aspx CanConvert(Type type)40 public virtual bool CanConvert (Type type) 41 { 42 switch (Type.GetTypeCode (type)) { 43 case TypeCode.DBNull: 44 case TypeCode.Empty: 45 return false; 46 case TypeCode.Object: 47 if (type == typeof (TimeSpan)) 48 return true; 49 if (type == typeof (DateTimeOffset)) 50 return true; 51 if (type == typeof (Guid)) 52 return true; 53 if (type == typeof (object)) 54 return true; 55 // if (type.GetCustomAttributes (typeof (TypeConverterAttribute), true).Length > 0) 56 // return true; 57 return false; 58 default: 59 return true; 60 } 61 } 62 ConvertStringToValue(string parameter, Type parameterType)63 public virtual object ConvertStringToValue (string parameter, Type parameterType) 64 { 65 if (parameterType == null) 66 throw new ArgumentNullException ("parameterType"); 67 68 if (!CanConvert (parameterType)) 69 throw new NotSupportedException (String.Format ("Conversion from the argument parameterType '{0}' is not supported", parameterType)); 70 71 if (parameterType.IsEnum) 72 return Enum.Parse(parameterType, parameter, true); 73 74 switch (Type.GetTypeCode (parameterType)) { 75 case TypeCode.String: 76 return parameter; 77 case TypeCode.Char: 78 return parameter != null ? Char.Parse (parameter) : default (char); 79 case TypeCode.SByte: 80 return parameter != null ? SByte.Parse (parameter, CultureInfo.InvariantCulture): default (sbyte); 81 case TypeCode.Byte: 82 return parameter != null ? Byte.Parse (parameter, CultureInfo.InvariantCulture): default (byte); 83 case TypeCode.Int16: 84 return parameter != null ? Int16.Parse (parameter, CultureInfo.InvariantCulture): default (short); 85 case TypeCode.Int32: 86 return parameter != null ? Int32.Parse (parameter, CultureInfo.InvariantCulture): default (int); 87 case TypeCode.Int64: 88 return parameter != null ? Int64.Parse (parameter, CultureInfo.InvariantCulture): default (long); 89 case TypeCode.UInt16: 90 return parameter != null ? UInt16.Parse (parameter, CultureInfo.InvariantCulture): default (ushort); 91 case TypeCode.UInt32: 92 return parameter != null ? UInt32.Parse (parameter, CultureInfo.InvariantCulture): default (uint); 93 case TypeCode.UInt64: 94 return parameter != null ? UInt64.Parse (parameter, CultureInfo.InvariantCulture): default (ulong); 95 case TypeCode.DateTime: 96 return parameter != null ? DateTime.Parse (parameter, CultureInfo.InvariantCulture): default (DateTime); 97 case TypeCode.Boolean: 98 return parameter != null ? Boolean.Parse (parameter): default (bool); 99 case TypeCode.Single: 100 return parameter != null ? Single.Parse (parameter, CultureInfo.InvariantCulture): default (float); 101 case TypeCode.Double: 102 return parameter != null ? Double.Parse (parameter, CultureInfo.InvariantCulture): default (double); 103 case TypeCode.Decimal: 104 return parameter != null ? Decimal.Parse (parameter, CultureInfo.InvariantCulture): default (decimal); 105 case TypeCode.Object: 106 if (parameterType == typeof (TimeSpan)) 107 return TimeSpan.Parse (parameter); 108 if (parameterType == typeof (DateTimeOffset)) 109 return DateTimeOffset.Parse (parameter, CultureInfo.InvariantCulture); 110 if (parameterType == typeof (Guid)) 111 return new Guid (parameter); 112 break; 113 } 114 throw new NotSupportedException (String.Format ("Cannot convert parameter string '{0}' to parameter type '{1}'", parameter, parameterType)); 115 } 116 ConvertValueToString(object parameter, Type parameterType)117 public virtual string ConvertValueToString (object parameter, Type parameterType) 118 { 119 if (parameterType == null) 120 throw new ArgumentNullException ("parameterType"); 121 if (parameterType.IsValueType && parameter == null) 122 throw new ArgumentNullException ("parameter"); 123 124 if (parameter == null) 125 return null; 126 127 if (parameter.GetType () != parameterType) 128 throw new InvalidCastException (String.Format ("This QueryStringConverter does not support cast from {0} to {1}", parameter.GetType (), parameterType)); 129 130 if (!CanConvert (parameterType)) 131 throw new NotSupportedException (String.Format ("Conversion from the argument parameterType '{0}' is not supported", parameterType)); 132 133 if (parameter is IFormattable) 134 ((IFormattable) parameter).ToString (null, CultureInfo.InvariantCulture); 135 return parameter.ToString (); 136 } 137 } 138 } 139