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108 lines
3.6 KiB
108 lines
3.6 KiB
Imports System.IO
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Imports System.Reflection
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#If netcore5 = 1 Then
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Imports Microsoft.VisualBasic.ApplicationServices.Development.NetCore5
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#End If
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Imports Microsoft.VisualBasic.ComponentModel
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Imports Microsoft.VisualBasic.MIME.application.json
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Imports Microsoft.VisualBasic.Net.Tcp
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Imports Microsoft.VisualBasic.Parallel
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Imports Microsoft.VisualBasic.Serialization.JSON
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Public Class TaskBuilder : Implements ITaskDriver
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ReadOnly masterPort As Integer
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ReadOnly emit As New StreamEmit
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Sub New(port As Integer)
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masterPort = port
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End Sub
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Public Function Run() As Integer Implements ITaskDriver.Run
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Dim task As IDelegate = GetMethod()
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Dim api As MethodInfo = task.GetMethod
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Dim target As Object = task.GetMethodTarget
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Dim n As Integer = GetArgumentValueNumber()
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Dim args As New List(Of Object)
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For i As Integer = 0 To n - 1
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args.Add(GetArgumentValue(i))
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Next
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Call Console.WriteLine("run task:")
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Call Console.WriteLine(task.GetJson(indent:=False, simpleDict:=True))
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Dim params As ParameterInfo() = api.GetParameters
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For i As Integer = n To params.Length - 1
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If Not params(i).IsOptional Then
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Return PostError(New Exception($"missing parameter value for [{i}]{params(i).Name}!"))
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Else
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args.Add(params(i).DefaultValue)
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End If
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Next
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' send debug message
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Call New TcpRequest(masterPort).SendMessage(New RequestStream(IPCSocket.Protocol, Protocols.PostStart))
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Try
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Call PostFinished(api.Invoke(target, args.ToArray))
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Catch ex As Exception
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Call PostError(ex)
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Finally
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Call Console.WriteLine("job done!")
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End Try
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Return 0
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End Function
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Private Function GetArgumentValueNumber() As Integer
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Dim resp = New TcpRequest(masterPort).SendMessage(New RequestStream(IPCSocket.Protocol, Protocols.GetArgumentNumber))
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Dim n As Integer = BitConverter.ToInt32(resp.ChunkBuffer, Scan0)
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Return n
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End Function
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Private Function GetMethod() As IDelegate
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Dim resp = New TcpRequest(masterPort).SendMessage(New RequestStream(IPCSocket.Protocol, Protocols.GetTask))
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Dim json As String = resp.GetUTF8String
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Dim target As IDelegate = json.LoadJSON(Of IDelegate)
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Return target
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End Function
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Private Function GetArgumentValue(i As Integer) As Object
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Dim request As New RequestStream(IPCSocket.Protocol, Protocols.GetArgumentByIndex, BitConverter.GetBytes(i))
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Dim resp = New TcpRequest(masterPort).SendMessage(request)
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Dim stream As New ObjectStream(resp.ChunkBuffer)
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Dim type As Type = stream.type.GetType(knownFirst:=True)
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#If netcore5 = 1 Then
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Call deps.TryHandleNetCore5AssemblyBugs(package:=type)
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#End If
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Using buf As MemoryStream = stream.openMemoryBuffer
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Return emit.handleCreate(buf, type, stream.method)
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End Using
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End Function
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Private Function PostError(err As Exception) As Integer
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Return 500
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End Function
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Private Sub PostFinished(result As Object)
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Using buf As Stream = emit.handleSerialize(result).openMemoryBuffer
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Dim request As New RequestStream(
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protocolCategory:=IPCSocket.Protocol,
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protocol:=Protocols.PostResult,
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buffer:=New StreamPipe(buf).Read
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)
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Call Console.WriteLine($"post result...")
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Call New TcpRequest(masterPort).SendMessage(request)
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End Using
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End Sub
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End Class
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