| 1 | #Region "Microsoft.VisualBasic::d0bd8ff98c817e8b3ab04032760e6d74, Microsoft.VisualBasic.Core\CommandLine\CLIMapper.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 CLIMapper |
| 35 | ' |
| 36 | ' Function: GetName, Maps |
| 37 | ' |
| 38 | ' |
| 39 | ' /********************************************************************************/ |
| 40 | |
| 41 | #End Region |
| 42 | |
| 43 | Imports System.Reflection |
| 44 | Imports System.Runtime.CompilerServices |
| 45 | Imports Microsoft.VisualBasic.CommandLine.Reflection |
| 46 | |
| 47 | Namespace CommandLine |
| 48 | |
| 49 | ''' <summary> |
| 50 | ''' 从可写属性之中赋值 |
| 51 | ''' </summary> |
| 52 | Public Module CLIMapper |
| 53 | |
| 54 | ''' <summary> |
| 55 | ''' Assign the argument value in the commandline into the target argument container object. |
| 56 | ''' The properties in the container class type needs decorating with attribute |
| 57 | ''' |
| 58 | ''' (这个拓展函数是将命令行对象反序列化为参数对象) |
| 59 | ''' <see cref="Argv"/> |
| 60 | ''' </summary> |
| 61 | ''' <typeparam name="T"></typeparam> |
| 62 | ''' <param name="args"></param> |
| 63 | ''' <param name="strict"></param> |
| 64 | ''' <returns></returns> |
| 65 | <Extension> |
| 66 | Public Function Maps(Of T As Class)(args As CommandLine, Optional strict As Boolean = False) As T |
| 67 | Dim type As Type = GetType(T) |
| 68 | Dim obj As Object = Activator.CreateInstance(type) |
| 69 | Dim props = From prop As PropertyInfo |
| 70 | In type.GetProperties |
| 71 | Where prop.CanWrite AndAlso |
| 72 | Scripting.IsPrimitive(prop.PropertyType) |
| 73 | Select prop |
| 74 | |
| 75 | For Each prop As PropertyInfo In props |
| 76 | Dim name As String = prop.GetName |
| 77 | |
| 78 | If Not args.ContainsParameter(name, Not strict) Then |
| 79 | Continue For |
| 80 | Else |
| 81 | type = prop.PropertyType |
| 82 | End If |
| 83 | |
| 84 | If type.Equals(GetType(Boolean)) Then |
| 85 | ' 由于是逻辑值,所以只要存在就是真,不存在就是False |
| 86 | Call prop.SetValue(obj, True, Nothing) |
| 87 | Else |
| 88 | Dim s As String = args(name) |
| 89 | Dim value = Scripting.CTypeDynamic(s, type) |
| 90 | |
| 91 | Call prop.SetValue(obj, value, Nothing) |
| 92 | End If |
| 93 | Next |
| 94 | |
| 95 | Return DirectCast(obj, T) |
| 96 | End Function |
| 97 | |
| 98 | ''' <summary> |
| 99 | ''' If the property <paramref name="prop"/> have the custom attribute <see cref="Argv"/> |
| 100 | ''' then the name value in <see cref="Argv"/> will be used, otherwise, |
| 101 | ''' <see cref="PropertyInfo.Name"/> will be used. |
| 102 | ''' </summary> |
| 103 | ''' <param name="prop"></param> |
| 104 | ''' <returns></returns> |
| 105 | <Extension> Public Function GetName(prop As PropertyInfo) As String |
| 106 | Dim attr As Argv = prop.GetAttribute(Of Argv) |
| 107 | |
| 108 | If attr Is Nothing OrElse attr.Name.StringEmpty Then |
| 109 | Return prop.Name |
| 110 | Else |
| 111 | Return attr.Name |
| 112 | End If |
| 113 | End Function |
| 114 | End Module |
| 115 | End Namespace |