| 1 | #Region "Microsoft.VisualBasic::bcfdaad7954d579a41f1d3687a4428d0, Microsoft.VisualBasic.Core\Net\Protocol\Reflection\Protocol.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 | ' Class Protocol |
| 35 | ' |
| 36 | ' Properties: DeclaringType, EntryPoint |
| 37 | ' |
| 38 | ' Constructor: (+2 Overloads) Sub New |
| 39 | ' Function: GetEntryPoint, GetProtocolCategory, ToString |
| 40 | ' |
| 41 | ' |
| 42 | ' /********************************************************************************/ |
| 43 | |
| 44 | #End Region |
| 45 | |
| 46 | Namespace Net.Protocols.Reflection |
| 47 | |
| 48 | ''' <summary> |
| 49 | ''' This attribute indicates the entry point of the protocol processor definition location |
| 50 | ''' and the details of the protocol processor. |
| 51 | ''' </summary> |
| 52 | <AttributeUsage(AttributeTargets.Class Or AttributeTargets.Method, AllowMultiple:=True, Inherited:=True)> |
| 53 | Public Class Protocol : Inherits Attribute |
| 54 | |
| 55 | ''' <summary> |
| 56 | ''' Entry point for the data protocols, this property usually correspondent to the request stream's |
| 57 | ''' property: <see cref="RequestStream.Protocol"/> and <see cref="RequestStream.ProtocolCategory"/> |
| 58 | ''' </summary> |
| 59 | ''' <returns></returns> |
| 60 | Public ReadOnly Property EntryPoint As Long |
| 61 | ''' <summary> |
| 62 | ''' 这个属性对于方法而言为空,但是对于类型入口点而言则不为空 |
| 63 | ''' </summary> |
| 64 | ''' <returns></returns> |
| 65 | Public ReadOnly Property DeclaringType As Type |
| 66 | |
| 67 | ''' <summary> |
| 68 | ''' Generates the protocol method entrypoint.(应用于服务器上面的协议处理方法) |
| 69 | ''' </summary> |
| 70 | ''' <param name="entryPoint"></param> |
| 71 | Sub New(entryPoint As Long) |
| 72 | Me.EntryPoint = entryPoint |
| 73 | End Sub |
| 74 | |
| 75 | ''' <summary> |
| 76 | ''' Generates the <see cref="ProtocolHandler"/> on the server side, |
| 77 | ''' this is using for initialize a protocol API entry point. |
| 78 | ''' (客户端上面的类型) |
| 79 | ''' </summary> |
| 80 | ''' <param name="type">客户端上面的类型</param> |
| 81 | Sub New(type As Type) |
| 82 | EntryPoint = SecurityString.MD5Hash.ToLong(type.GUID.ToByteArray) |
| 83 | DeclaringType = type |
| 84 | End Sub |
| 85 | |
| 86 | Public Overrides Function ToString() As String |
| 87 | If DeclaringType Is Nothing Then |
| 88 | Return EntryPoint |
| 89 | Else |
| 90 | Return $"*{EntryPoint} ==> {DeclaringType.FullName}" |
| 91 | End If |
| 92 | End Function |
| 93 | |
| 94 | ''' <summary> |
| 95 | ''' This method is usually using for generates a <see cref="protocolhandler"/> object. |
| 96 | ''' Correspondent to the protocol class property <see cref="RequestStream.ProtocolCategory"/> |
| 97 | ''' </summary> |
| 98 | ''' <param name="Type"></param> |
| 99 | ''' <returns></returns> |
| 100 | Public Shared Function GetProtocolCategory(Type As Type) As Protocol |
| 101 | Dim attrs As Object() = Type.GetCustomAttributes(attributeType:=GetType(Protocol), inherit:=True) |
| 102 | If attrs.IsNullOrEmpty Then |
| 103 | Return Nothing |
| 104 | End If |
| 105 | |
| 106 | Dim attr As Protocol = DirectCast(attrs(Scan0), Protocol) |
| 107 | Return attr |
| 108 | End Function |
| 109 | |
| 110 | ''' <summary> |
| 111 | ''' This method is usually using for generates a details protocol processor, example |
| 112 | ''' is calling the method interface: <see cref="Net.Abstract.DataRequestHandler"/> |
| 113 | ''' Correspondent to the protocol entry property <see cref="RequestStream.Protocol"/> |
| 114 | ''' </summary> |
| 115 | ''' <param name="Method"></param> |
| 116 | ''' <returns></returns> |
| 117 | Public Shared Function GetEntryPoint(Method As System.Reflection.MethodInfo) As Protocol |
| 118 | Dim attrs As Object() = Method.GetCustomAttributes(attributeType:=GetType(Protocol), inherit:=True) |
| 119 | If attrs.IsNullOrEmpty Then |
| 120 | Return Nothing |
| 121 | End If |
| 122 | |
| 123 | Dim attr As Protocol = DirectCast(attrs(Scan0), Protocol) |
| 124 | Return attr |
| 125 | End Function |
| 126 | End Class |
| 127 | End Namespace |