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88 lines
2.8 KiB
88 lines
2.8 KiB
Imports System.IO
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Imports System.Runtime.CompilerServices
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Imports Microsoft.VisualBasic.Data.IO
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.MachineLearning.Darwinism.NonlinearGridTopology
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Imports Microsoft.VisualBasic.Math.LinearAlgebra
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Public Module GridSystemIOExtensions
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<Extension>
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Public Sub Serialize(grid As GridSystem, save As Stream, Optional chunkSize% = 1024)
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Dim A As Stream = grid.A.PopVectorStream(chunkSize)
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Dim B As Stream = grid.C _
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.Select(Function(cor) cor.BC) _
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.AsVector _
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.PopVectorStream(chunkSize)
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Call save.Seek(Scan0, SeekOrigin.Begin)
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Using writer As New BinaryDataWriter(save)
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Call writer.Write(grid.C.Length) ' i32
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Call writer.Write(grid.AC) ' f64
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Call writer.Write(A.Length) ' i64
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Call writer.Write(A) ' bytes
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Call writer.Write(B.Length) ' i64
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Call writer.Write(B) ' bytes
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Call A.Dispose()
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Call B.Dispose()
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For Each factor As MemoryStream In grid.C _
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.Select(Function(cor)
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Return cor.B.PopVectorStream(chunkSize)
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End Function)
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Call writer.Write(factor.Length) ' i64
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Call writer.Write(factor) ' bytes
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Call factor.Dispose()
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Next
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End Using
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End Sub
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<Extension>
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Private Function PopVectorStream(v As Vector, chunkSize%) As MemoryStream
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Dim ms As New MemoryStream
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Call v.Serialize(save:=ms, chunkSize:=chunkSize)
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Return ms
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End Function
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<Extension>
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Public Function LoadGridSystem(stream As Stream) As GridSystem
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Using reader As New BinaryDataReader(stream)
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Dim width% = reader.ReadInt32
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Dim A_const# = reader.ReadDouble
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Dim subSize&
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Dim subChunk As Byte()
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Dim grid As New GridSystem With {.AC = A_const}
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Dim cor As New List(Of Correlation)
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Dim grid_B As Vector
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' A
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subSize = reader.ReadInt64
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subChunk = reader.ReadBytes(subSize)
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grid.A = New MemoryStream(subChunk).LoadVector
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' B
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subSize = reader.ReadInt64
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subChunk = reader.ReadBytes(subSize)
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grid_B = New MemoryStream(subChunk).LoadVector
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' read correlation matrix
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For i As Integer = 0 To width - 1
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subSize = reader.ReadInt64
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subChunk = reader.ReadBytes(subSize)
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cor += New Correlation With {
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.BC = grid_B(i),
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.B = New MemoryStream(subChunk).LoadVector
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}
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Next
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grid.C = cor
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Return grid
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End Using
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End Function
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End Module
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