| 1 | #Region "Microsoft.VisualBasic::7f24c2ef06dc7b20508e8d8ced1f3148, Microsoft.VisualBasic.Core\Extensions\WebServices\RequestBuilder.vb" |
| 2 | |
| 3 | ' Author: |
| 4 | ' |
| 5 | ' asuka (amethyst.asuka@gcmodeller.org) |
| 6 | ' xie (genetics@smrucc.org) |
| 7 | ' xieguigang (xie.guigang@live.com) |
| 8 | ' |
| 9 | ' Copyright (c) 2018 GPL3 Licensed |
| 10 | ' |
| 11 | ' |
| 12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
| 13 | ' |
| 14 | ' |
| 15 | ' This program is free software: you can redistribute it and/or modify |
| 16 | ' it under the terms of the GNU General Public License as published by |
| 17 | ' the Free Software Foundation, either version 3 of the License, or |
| 18 | ' (at your option) any later version. |
| 19 | ' |
| 20 | ' This program is distributed in the hope that it will be useful, |
| 21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | ' GNU General Public License for more details. |
| 24 | ' |
| 25 | ' You should have received a copy of the GNU General Public License |
| 26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 27 | |
| 28 | |
| 29 | |
| 30 | ' /********************************************************************************/ |
| 31 | |
| 32 | ' Summaries: |
| 33 | |
| 34 | ' Module RequestBuilder |
| 35 | ' |
| 36 | ' Function: BuildParameters, IsPrimitive |
| 37 | ' |
| 38 | ' |
| 39 | ' /********************************************************************************/ |
| 40 | |
| 41 | #End Region |
| 42 | |
| 43 | Imports System.Reflection |
| 44 | Imports System.Runtime.CompilerServices |
| 45 | Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel |
| 46 | Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel.SchemaMaps |
| 47 | Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel.SchemaMaps.DataFrameColumnAttribute |
| 48 | Imports Microsoft.VisualBasic.Language |
| 49 | |
| 50 | Namespace Net.Http |
| 51 | |
| 52 | Public Module RequestBuilder |
| 53 | |
| 54 | ''' <summary> |
| 55 | ''' Encoding a class object as url parameters. |
| 56 | ''' (当前的这个函数操作里面已经包含有了URL的编码工作了) |
| 57 | ''' </summary> |
| 58 | ''' <typeparam name="T"></typeparam> |
| 59 | ''' <param name="obj"></param> |
| 60 | ''' <returns></returns> |
| 61 | <Extension> |
| 62 | Public Function BuildParameters(Of T As Class)(obj As T) As String |
| 63 | Dim type As Type = GetType(T) |
| 64 | Dim args As New List(Of NamedValue(Of String)) |
| 65 | Dim ps = LoadMapping(type, mapsAll:=True) |
| 66 | |
| 67 | For Each p As BindProperty(Of DataFrameColumnAttribute) In ps.Values.Where(IsPrimitive) |
| 68 | Dim value As Object = p.GetValue(obj) |
| 69 | |
| 70 | If Not value Is Nothing Then |
| 71 | Dim str$ |
| 72 | |
| 73 | If value.GetType.IsEnum Then |
| 74 | str = DirectCast(value, [Enum]).Description |
| 75 | Else |
| 76 | str = value.ToString |
| 77 | End If |
| 78 | |
| 79 | args += New NamedValue(Of String) With { |
| 80 | .Value = str, |
| 81 | .Name = p.field.Name |
| 82 | } |
| 83 | End If |
| 84 | Next |
| 85 | |
| 86 | Dim param As String = args _ |
| 87 | .Select(Function(o) $"{o.Name}={o.Value.UrlEncode}") _ |
| 88 | .JoinBy("&") |
| 89 | Return param |
| 90 | End Function |
| 91 | |
| 92 | Private Function IsPrimitive() As Func(Of BindProperty(Of DataFrameColumnAttribute), Boolean) |
| 93 | Return Function(o) |
| 94 | Return DataFramework.IsPrimitive(DirectCast(o.member, PropertyInfo).PropertyType) |
| 95 | End Function |
| 96 | End Function |
| 97 | End Module |
| 98 | End Namespace |