115 lines
3.7 KiB
VB.net
115 lines
3.7 KiB
VB.net
#Region "Microsoft.VisualBasic::294d3d421637bd5c010bdb8742d4cec3, Microsoft.VisualBasic.Core\Net\Protocol\Streams\VarArray.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Class VarArray
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'
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' Constructor: (+2 Overloads) Sub New
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' Function: Serialize
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'
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'
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' /********************************************************************************/
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#End Region
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.Linq
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Imports Microsoft.VisualBasic.Serialization.BinaryDumping
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Imports Buffer = System.Array
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Namespace Net.Protocols.Streams.Array
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''' <summary>
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''' The bytes length of the element in thee source sequence is not fixed.
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''' (序列里面的元素的长度是不固定的)
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''' </summary>
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Public Class VarArray(Of T) : Inherits ArrayAbstract(Of T)
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Sub New(TSerialize As IGetBuffer(Of T), load As IGetObject(Of T))
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Call MyBase.New(TSerialize, load)
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End Sub
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Sub New(raw As Byte(), serilize As IGetBuffer(Of T), load As IGetObject(Of T))
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Call Me.New(serilize, load)
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Dim lb As Byte() = New Byte(INT64 - 1) {}
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Dim buf As Byte()
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Dim i As New Pointer
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Dim list As New List(Of T)
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Dim l As Long
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Dim x As T
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Do While raw.Length > i
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Call Buffer.ConstrainedCopy(raw, i << INT64, lb, Scan0, INT64)
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l = BitConverter.ToInt64(lb, Scan0)
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buf = New Byte(l - 1) {}
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Call Buffer.ConstrainedCopy(raw, i << buf.Length, buf, Scan0, buf.Length)
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x = load(buf)
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list += x
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Loop
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Values = list.ToArray
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End Sub
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''' <summary>
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''' Long + T + Long + T
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''' 其中Long是一个8字节长度的数组，用来指示T的长度
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''' </summary>
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''' <returns></returns>
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Public Overrides Function Serialize() As Byte()
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Dim list As New List(Of Byte)
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Dim LQuery = From index As SeqValue(Of T)
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In Values.SeqIterator.AsParallel
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Select buf = New SeqValue(Of Byte()) With {
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.i = index.i,
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.value = serialization(index.value)
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}
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Order By buf.i Ascending
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For Each x As SeqValue(Of Byte()) In LQuery
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Dim byts As Byte() = x.value
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Dim l As Long = byts.Length
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Dim lb As Byte() = BitConverter.GetBytes(l)
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Call list.AddRange(lb)
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Call list.AddRange(byts)
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Next
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Return list.ToArray
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End Function
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End Class
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End Namespace
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