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 |