| 1 | #Region "Microsoft.VisualBasic::326a34842d49ce1fdf7ddebf7dcd8fbe, Microsoft.VisualBasic.Core\Net\Protocol\Streams\ArrayBase.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 ValueArray |
| 35 | ' |
| 36 | ' Constructor: (+1 Overloads) Sub New |
| 37 | ' Function: ToString |
| 38 | ' |
| 39 | ' |
| 40 | ' /********************************************************************************/ |
| 41 | |
| 42 | #End Region |
| 43 | |
| 44 | Imports Microsoft.VisualBasic.Language |
| 45 | Imports Microsoft.VisualBasic.Serialization.BinaryDumping |
| 46 | Imports Microsoft.VisualBasic.Serialization.JSON |
| 47 | Imports Buffer = System.Array |
| 48 | |
| 49 | Namespace Net.Protocols.Streams.Array |
| 50 | |
| 51 | ''' <summary> |
| 52 | ''' 对于<see cref="System.Int64"/>, <see cref="System.int32"/>, <see cref="System.Double"/>, <see cref="System.DateTime"/> |
| 53 | ''' 这些类型的数据来说,进行网络传输的时候使用json会被转换为字符串,数据量比较大,而转换为字节再进行传输,数据流量的消耗会比较小 |
| 54 | ''' </summary> |
| 55 | ''' <typeparam name="T"></typeparam> |
| 56 | ''' <remarks>这个是定长的数组序列</remarks> |
| 57 | Public MustInherit Class ValueArray(Of T) : Inherits ArrayAbstract(Of T) |
| 58 | |
| 59 | Protected ReadOnly _bufWidth As Integer |
| 60 | |
| 61 | Protected Sub New(serialization As IGetBuffer(Of T), |
| 62 | deserialization As IGetObject(Of T), |
| 63 | bufWidth As Integer, |
| 64 | rawStream As Byte()) |
| 65 | |
| 66 | Call MyBase.New(serialization, deserialization) |
| 67 | |
| 68 | _bufWidth = bufWidth |
| 69 | |
| 70 | If Not rawStream.IsNullOrEmpty Then |
| 71 | Dim valueList As New List(Of T) |
| 72 | Dim p As int = 0 |
| 73 | Dim byts As Byte() = New Byte(_bufWidth - 1) {} |
| 74 | |
| 75 | Do While p < rawStream.Length - 1 |
| 76 | Call Buffer.ConstrainedCopy(rawStream, p + bufWidth, byts, Scan0, bufWidth) |
| 77 | Call valueList.Add(MyBase.deserialization(byts)) |
| 78 | Loop |
| 79 | |
| 80 | Values = valueList.ToArray |
| 81 | End If |
| 82 | End Sub |
| 83 | |
| 84 | Public NotOverridable Overrides Function Serialize() As Byte() |
| 85 | Dim bufferArray As Byte() = New Byte(Values.Length * _bufWidth - 1) {} |
| 86 | Dim p As int = 0 |
| 87 | |
| 88 | For Each value As T In Values |
| 89 | Dim byts As Byte() = serialization(value) |
| 90 | Call Buffer.ConstrainedCopy(byts, Scan0, bufferArray, p + _bufWidth, _bufWidth) |
| 91 | Next |
| 92 | |
| 93 | Return bufferArray |
| 94 | End Function |
| 95 | |
| 96 | Public Overrides Function ToString() As String |
| 97 | If Values.IsNullOrEmpty Then |
| 98 | Return GetType(T).FullName |
| 99 | Else |
| 100 | Dim valJson$ = Values _ |
| 101 | .Select(Function(val) Scripting.ToString(val)) _ |
| 102 | .GetJson |
| 103 | Return $"{GetType(T).FullName} {valJson}" |
| 104 | End If |
| 105 | End Function |
| 106 | End Class |
| 107 | End Namespace |