_
Public Class InputBuffer
Inherits ScriptBufferPlus
Public Sub New(ByVal Component As ScriptComponent, ByVal ObjectID As Integer, ByVal IsInput As Boolean, ByVal Buffer As PipelineBuffer, ByVal OutputMap As OutputNameMap)
MyBase.New(Component, ObjectID, IsInput, Buffer, OutputMap)
End Sub
Public Overrides ReadOnly Property StaticInputColumns() As String()
Get
Return New String() {}
End Get
End Property
Public WriteOnly Property [Checksum]() As Int32
Set
Me(0) = Value
End Set
End Property
Public WriteOnly Property [Checksum_IsNull] As Boolean
Set
If (value)
SetNull(0)
Else
Throw new InvalidOperationException("IsNull property cannot be set to False. Assign a value to the column instead.")
End If
End Set
End Property
Public Overrides ReadOnly Property StaticOutputColumns() As String()
Get
Return New String() {"Checksum"}
End Get
End Property
Public Overloads Function NextRow() As Boolean
NextRow = MyBase.NextRow()
End Function
Public Overloads Function EndOfRowset() As Boolean
EndOfRowset = MyBase.EndOfRowset
End Function
End Class
]]>{30D016F9-3734-4E33-A861-5E7D899E18F3};{F184B08F-C81C-45F6-A57F-5ABD9991F28F}DebugAnyCPU8.0.307032.0{6A9E0FC6-2FAD-43A9-9955-0632A69EAF29}LibraryMy ProjectScriptComponent_34de6a2852f74048adcd913b9e905a25ScriptComponent_34de6a2852f74048adcd913b9e905a25v4.0512truefullfalse.\bin\Debug\falsetruetrueprompt4falsetrue.\bin\Release\falsefalsetrueprompt4FalseC:\Program Files (x86)\Microsoft SQL Server\110\SDK\Assemblies\CozyRoc.SSISPlus.2012.dllSSIS_SC110BinaryOnOn]]> _
_
_
Public Class ScriptMain
Inherits UserComponent
Private Const ColumnSeparator As String = "," + vbCr
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Overrides Sub Input_ProcessInputRow(ByVal Row As InputBuffer)
m_sb.Length = 0
Dim colsCount As Integer = m_inputIndexes.Length
For colIndex As Integer = 0 To colsCount - 1
Dim bufIndex As Integer = m_inputIndexes(colIndex)
If Row.Buffer.IsNull(bufIndex) Then
Call m_sb.Append("\0")
Else
Call m_sb.Append(Row.Buffer(bufIndex).ToString())
End If
m_sb.Append("\n")
Next
' Setup hash.
m_crc32.Initialize()
Row.Checksum = BitConverter.ToInt32(m_crc32.ComputeHash(Encoding.Unicode.GetBytes(m_sb.ToString())), 0)
End Sub ' Input_ProcessInputRow
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Overrides Sub PreExecute()
Call MyBase.PreExecute()
Dim input As IDTSInput100 = Me.ComponentMetaData.InputCollection(0)
' Initialize.
m_sb = New StringBuilder()
m_crc32 = New CRC32()
' Setup dynamic input columns indexes.
Dim colsCount As Integer = input.InputColumnCollection.Count
m_inputIndexes = New Integer(colsCount - 1) {}
For colIndex As Integer = 0 To colsCount - 1
m_inputIndexes(colIndex) = Me.HostComponent.BufferManager.FindColumnByLineageID( _
input.Buffer, _
input.InputColumnCollection(colIndex).LineageID)
Next
End Sub ' PreExecute
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Function Validate(ByRef errMessage As String) As Boolean
Dim result As Boolean
Try
If String.IsNullOrEmpty(Me.InputColumns) Then
Throw New ApplicationException("Select input columns.")
End If
' Setup input columns based on selection.
Dim selectedCols() As String = CStr(Me.InputColumns).Split( _
New String() {ColumnSeparator}, _
StringSplitOptions.None)
Dim input As IDTSInput100 = Me.ComponentMetaData.InputCollection(0)
Dim virtInput As IDTSVirtualInput100 = input.GetVirtualInput()
Call input.InputColumnCollection.RemoveAll()
For Each col As String In selectedCols
If Not String.IsNullOrEmpty(col) Then
Dim virtColumn As IDTSVirtualInputColumn100 = virtInput.VirtualInputColumnCollection(col)
Call virtInput.SetUsageType(virtColumn.LineageID, DTSUsageType.UT_READONLY)
End If
Next
result = True
Catch ex As Exception
result = False
errMessage = ex.Message
End Try
Validate = result
End Function 'Validate
#Region "Properties"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
_
_
_
Public Property InputColumns() As String
Get
InputColumns = m_inputCols
End Get
Set(ByVal value As String)
m_inputCols = value
End Set
End Property ' InputColumns
#End Region ' Properties
#Region "Internals"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Provides multiple input columns selection
Private Class ColumnsEditor
Inherits UITypeEditor
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Overrides Function EditValue( _
ByVal context As ITypeDescriptorContext, _
ByVal provider As IServiceProvider, _
ByVal value As Object) As Object
Dim result As Object = value
If Not context Is Nothing AndAlso _
Not context.Instance Is Nothing AndAlso _
Not context.PropertyDescriptor Is Nothing AndAlso _
Not provider Is Nothing Then
Dim edSvc As IWindowsFormsEditorService = CType(provider.GetService( _
GetType(IWindowsFormsEditorService)), _
IWindowsFormsEditorService)
Dim descriptor As ICustomTypeDescriptor = CType( _
context.Instance, _
ICustomTypeDescriptor)
Dim component As ScriptMain = CType( _
descriptor.GetPropertyOwner(context.PropertyDescriptor), _
ScriptMain)
Dim virtInput As IDTSVirtualInput100 = component.ComponentMetaData.InputCollection(0).GetVirtualInput()
' Load selected columns.
Dim selectedCols() As String = CStr(value).Split( _
New String() {ColumnSeparator}, _
StringSplitOptions.None)
' Build input columns list.
Dim clb As CheckedListBox = New CheckedListBox()
clb.CheckOnClick = True
clb.BorderStyle = BorderStyle.None
For Each inputCol As IDTSVirtualInputColumn100 In virtInput.VirtualInputColumnCollection
Dim selected As Boolean = ContainsString_(selectedCols, inputCol.Name)
Call clb.Items.Add(inputCol.Name, selected)
Next
Call edSvc.DropDownControl(clb)
' Store selected columns.
Dim selCount As Integer = clb.CheckedItems.Count
If selCount > 0 Then
selectedCols = New String(selCount - 1) {}
For selIndex As Integer = 0 To selCount - 1
Dim col As String = CStr(clb.CheckedItems(selIndex))
selectedCols(selIndex) = col
Next
Call Array.Sort(selectedCols)
result = String.Join(ColumnSeparator, selectedCols)
End If
End If
EditValue = result
End Function ' EditValue
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Overrides Function GetEditStyle( _
ByVal context As ITypeDescriptorContext) As UITypeEditorEditStyle
If Not context Is Nothing AndAlso Not context.Instance Is Nothing Then
Return UITypeEditorEditStyle.DropDown
End If
Return MyBase.GetEditStyle(context)
End Function ' GetEditStyle
#Region "Internals"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Returns true if specified string exists in array.
Private Function ContainsString_(ByVal array() As String, ByVal str As String) As Boolean
Dim result As Boolean = False
For Each item As String In array
If item = str Then
' Found match.
result = True
Exit For
End If
Next
ContainsString_ = result
End Function ' ContainsString_
#End Region ' Internals
#Region "Attributes"
#End Region ' Attributes
End Class ' ColumnsEditor
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' The only purpose of this class is to limit edit in grid.
Private Class ColumnsConverter
Inherits TypeConverter
Public Sub New()
End Sub ' New
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Overrides Function CanConvertFrom( _
ByVal context As ITypeDescriptorContext, _
ByVal sourceType As Type) As Boolean
CanConvertFrom = False
End Function ' CanConvertFrom
End Class ' ColumnsConverter
#End Region ' Internals
#Region "Attributes"
Private m_inputCols As String = String.Empty
Private m_sb As StringBuilder
Private m_crc32 As CRC32
Private m_inputIndexes() As Integer
#End Region ' Attributes
End Class ' ScriptMain
]]> _
Public Class UserComponent
Inherits ScriptComponentPlus
Public Connections As New Connections(Me)
Public Variables As New Variables(Me)
Public Overrides Sub ProcessInput(ByVal InputID As Integer, ByVal InputName As String, ByVal Buffer As PipelineBuffer, ByVal OutputMap As OutputNameMap)
If InputID = MyBase.ComponentMetaData.InputCollection("Input").ID Then
Input_ProcessInput(New InputBuffer(Me, InputID, True, Buffer, OutputMap))
End If
End Sub
Public Overridable Sub Input_ProcessInput(ByVal Buffer As InputBuffer)
While Buffer.NextRow()
Input_ProcessInputRow(Buffer)
End While
End Sub
Public Overridable Sub Input_ProcessInputRow(ByVal Row As InputBuffer)
End Sub
End Class
Public Class Connections
Dim ParentComponent As ScriptComponent
_
Public Sub New(ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
Public Class Variables
Dim ParentComponent As ScriptComponent
_
Public Sub New(ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
]]>>= 8
m_crc = m_crc Xor m_crc32Table(CInt(tabPtr))
Next
End Sub ' HashCore
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Protected Overrides Function HashFinal() As Byte()
Dim result As Byte() = New Byte(4 - 1) {}
Dim finalCRC As ULong = m_crc Xor g_AllOnes
result(0) = CByte((finalCRC >> 24) And CULng(&HFF))
result(1) = CByte((finalCRC >> 16) And CULng(&HFF))
result(2) = CByte((finalCRC >> 8) And CULng(&HFF))
result(3) = CByte(finalCRC And CULng(&HFF))
HashFinal = result
End Function ' HashFinal
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Computes the hash value for the specified Stream.
Public Function ComputeHash(ByVal stream As Stream) As Byte()
Dim buffer As Byte() = New Byte(4096 - 1) {}
Do While True
Dim bytesRead As Integer = stream.Read(buffer, 0, 4096)
If bytesRead = 0 Then
Exit Do
End If
Call HashCore(buffer, 0, bytesRead)
Loop
ComputeHash = HashFinal()
End Function ' ComputeHash
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Overloaded. Computes the hash value for the input data.
Public Function ComputeHash(ByVal buffer As Byte()) As Byte()
ComputeHash = Me.ComputeHash(buffer, 0, buffer.Length)
End Function ' ComputeHash
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Computes the hash value for the input data.
Public Function ComputeHash( _
ByVal buffer As Byte(), _
ByVal offset As Integer, _
ByVal count As Integer) As Byte()
Call Me.HashCore(buffer, offset, count)
ComputeHash = Me.HashFinal()
End Function ' ComputeHash
#Region "Propeties"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Returns the default polynomial (used in WinZip, Ethernet, etc)
Public Shared ReadOnly Property DefaultPolynomial() As UInteger
Get
Return &H4C11DB7
End Get
End Property ' DefaultPolynomial
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Gets or sets the auto-cache setting of this class.
Public Shared Property AutoCache() As Boolean
Get
Return g_autoCache
End Get
Set(ByVal value As Boolean)
g_autoCache = value
End Set
End Property ' AutoCache
#End Region ' Propeties
#Region "Internals"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Builds a crc32 table given a polynomial
Protected Shared Function BuildCRC32Table(ByVal ulPolynomial As UInteger) As UInteger()
Dim result() As UInteger = New UInteger(255) {}
Dim dwSrc As UInteger
' 256 values representing ASCII character codes.
For i As Integer = 0 To 255
dwSrc = CUInt(i)
For j As Integer = 8 To 1 Step -1
If ((dwSrc And 1) = 1) Then
dwSrc = (dwSrc >> 1) Xor ulPolynomial
Else
dwSrc >>= 1
End If
Next
result(i) = dwSrc
Next
BuildCRC32Table = result
End Function ' BuildCRC32Table
#End Region ' Internals
#Region "Attributes"
Protected Shared g_AllOnes As UInteger
Protected Shared g_cachedCRC32Tables As Hashtable
Protected Shared g_autoCache As Boolean
Protected m_crc32Table As UInteger()
Private m_crc As UInteger
#End Region ' Attributes
End Class ' CRC32
]]>{4D3EF5C3-9C87-428C-8317-48C1DEC92833}Reference;Import;FoldermsBuildScriptComponent_34de6a2852f74048adcd913b9e905a25ScriptComponent_34de6a2852f74048adcd913b9e905a25]]>ScriptComponent_34de6a2852f74048adcd913b9e905a25VisualBasicCozyRoc.SqlServer.SSIS.ScriptComponentHostPlus, CozyRoc.SSISPlus.2012, Version=1.0.0.0, Culture=neutral, PublicKeyToken=16cf490bb80c34ea