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Public Class ScriptMain
Inherits UserComponent
Private Const ColumnSeparator As String = "," + vbLf
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Public Overrides Sub Input_ProcessInputRow(ByVal Row As InputBuffer)
Try
Dim colsCount As Integer = m_inputIdx.Length
For colIndex As Integer = 0 To colsCount - 1
Dim bufIndex As Integer = m_inputIdx(colIndex)
Dim dt As DataType = m_inputTypes(colIndex)
' Get input value.
Dim inputValue As String = Nothing
If Not Row.Buffer.IsNull(bufIndex) Then
Select Case dt
Case DataType.DT_TEXT, DataType.DT_NTEXT
inputValue = Row.Buffer.GetString(bufIndex).Trim()
Case Else
inputValue = Row.Buffer(bufIndex).ToString().Trim()
End Select
End If
Dim outputValue As String = inputValue
Select Case Me.Action
Case ActionTypes.IsNull
If inputValue Is Nothing Then
' NULL value. Replace with value.
outputValue = m_replaceValue
End If
Case ActionTypes.SetNull
If Not inputValue Is Nothing AndAlso _
m_matchValue.Contains(inputValue) Then
' Value match. Replace with NULL.
outputValue = Nothing
End If
End Select
If outputValue = inputValue Then
' No need to replace.
Continue For
End If
' Replace value.
If outputValue Is Nothing Then
Call Row.Buffer.SetNull(bufIndex)
Else
Select Case dt
Case DataType.DT_TEXT, DataType.DT_NTEXT
Call Row.Buffer.SetString(bufIndex, outputValue)
Case DataType.DT_DATE
Row.Buffer(bufIndex) = Convert.ToDateTime(outputValue)
Case DataType.DT_GUID
Row.Buffer(bufIndex) = New Guid(outputValue)
Case Else
Row.Buffer(bufIndex) = outputValue
End Select
End If
Next
Catch ex As Exception
Call FireError_(ex.Message)
End Try
End Sub ' Input_ProcessInputRow
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Public Overrides Sub PreExecute()
Call MyBase.PreExecute()
Dim input As IDTSInput100 = Me.ComponentMetaData.InputCollection(0)
' Setup dynamic input columns indexes.
Dim colsCount As Integer = input.InputColumnCollection.Count
m_inputIdx = New Integer(colsCount - 1) {}
m_inputTypes = New DataType(colsCount - 1) {}
For colIndex As Integer = 0 To colsCount - 1
Dim inputCol As IDTSInputColumn100 = input.InputColumnCollection(colIndex)
m_inputIdx(colIndex) = Me.HostComponent.BufferManager.FindColumnByLineageID( _
input.Buffer, _
inputCol.LineageID)
m_inputTypes(colIndex) = inputCol.DataType
Next
Dim actionValue As String = m_value
If m_isValueVar Then
' Action value is contained in variable.
actionValue = GetVariable_(actionValue).ToString()
End If
If Me.Action = ActionTypes.IsNull Then
' Setup replace value.
m_replaceValue = Regex.Unescape(actionValue)
Else
' Setup match value.
m_matchValue = New Hashtable()
Dim valueList() As String = CStr(actionValue).Split( _
New String() {vbLf}, _
StringSplitOptions.None)
For Each matchValue As String In valueList
If Not String.IsNullOrEmpty(matchValue) Then
matchValue = Regex.Unescape(matchValue)
End If
m_matchValue(matchValue) = Nothing
Next
End If
End Sub ' PreExecute
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Public Function Validate(ByRef errMessage As String) As Boolean
Dim result As Boolean
Try
Dim input As IDTSInput100 = Me.ComponentMetaData.InputCollection(0)
' Setup input columns based on selection.
Dim selectedCols() As String = CStr(Me.InputColumns).Split( _
New String() {ColumnSeparator}, _
StringSplitOptions.RemoveEmptyEntries)
Dim virtInput As IDTSVirtualInput100 = input.GetVirtualInput()
Call input.InputColumnCollection.RemoveAll()
For Each col As String In selectedCols
Dim virtColumn As IDTSVirtualInputColumn100 = virtInput.VirtualInputColumnCollection(col)
Call virtInput.SetUsageType(virtColumn.LineageID, DTSUsageType.UT_READWRITE)
Next
result = True
Catch ex As Exception
result = False
errMessage = ex.Message
End Try
Validate = result
End Function 'Validate
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' Returns list of current properties based on current state.
Public Function GetProperties() As String()
Dim result As New ArrayList
' Setup static.
Call result.Add("InputColumns")
Call result.Add("Action")
' Setup dynamic.
Select Case Me.Action
Case ActionTypes.IsNull
Call result.Add("IsReplaceValueVariable")
Call result.Add(IIf(Me.IsReplaceValueVariable, "ReplaceValueVariable", "ReplaceValue"))
Case ActionTypes.SetNull
Call result.Add("IsMatchValueVariable")
Call result.Add(IIf(Me.IsMatchValueVariable, "MatchValueVariable", "MatchValue"))
End Select
Return CType(result.ToArray(GetType(String)), String())
End Function ' GetProperties
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Public Overrides Sub OnInputPathAttached(ByVal inputID As Integer)
Call MyBase.OnInputPathAttached(inputID)
' Initialize with all string columns selected.
Dim input As IDTSInput100 = MyBase.ComponentMetaData.InputCollection(0)
Dim virtInput As IDTSVirtualInput100 = input.GetVirtualInput()
For Each column As IDTSVirtualInputColumn100 In virtInput.VirtualInputColumnCollection
If column.DataType <> DataType.DT_STR AndAlso _
column.DataType <> DataType.DT_WSTR AndAlso _
column.DataType <> DataType.DT_TEXT AndAlso _
column.DataType <> DataType.DT_NTEXT Then
Continue For
End If
' String column.
Call virtInput.SetUsageType(column.LineageID, DTSUsageType.UT_READWRITE)
Next
End Sub ' OnInputPathAttached
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Public Overrides Sub OnInputPathDetached(ByVal inputID As Integer)
MyBase.OnInputPathDetached(inputID)
Dim input As IDTSInput100 = MyBase.ComponentMetaData.InputCollection(0)
Call input.InputColumnCollection.RemoveAll()
End Sub
#Region "Properties"
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Public Property InputColumns() As String
Get
InputColumns = m_inputCols
End Get
Set(ByVal value As String)
Dim input As IDTSInput100 = MyBase.ComponentMetaData.InputCollection(0)
If input.IsAttached Then
If String.IsNullOrEmpty(value) Then
' Setup based on input columns collection.
value = GetInputCols_()
End If
Else
' Reset when no input is attached.
value = String.Empty
End If
m_inputCols = value
End Set
End Property ' InputColumns
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Public Property Action() As ActionTypes
Get
Action = m_action
End Get
Set(ByVal value As ActionTypes)
If m_action <> value Then
m_action = value
m_value = String.Empty
End If
End Set
End Property ' Action
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Public Property IsReplaceValueVariable() As Boolean
Get
IsReplaceValueVariable = m_isValueVar
End Get
Set(ByVal value As Boolean)
If m_isValueVar <> value Then
m_isValueVar = value
m_value = String.Empty
End If
End Set
End Property ' IsReplaceValueVariable
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Public Property ReplaceValue() As String
Get
ReplaceValue = m_value
End Get
Set(ByVal value As String)
m_value = value
End Set
End Property ' ReplaceValue
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Public Property ReplaceValueVariable() As String
Get
ReplaceValueVariable = m_value
End Get
Set(ByVal value As String)
m_value = value
End Set
End Property ' ReplaceValueVariable
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Public Property IsMatchValueVariable() As Boolean
Get
IsMatchValueVariable = m_isValueVar
End Get
Set(ByVal value As Boolean)
If m_isValueVar <> value Then
m_isValueVar = value
m_value = String.Empty
End If
End Set
End Property ' IsMatchValueVariable
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Public Property MatchValue() As String
Get
MatchValue = m_value
End Get
Set(ByVal value As String)
m_value = value
End Set
End Property ' MatchValue
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Public Property MatchValueVariable() As String
Get
MatchValueVariable = m_value
End Get
Set(ByVal value As String)
m_value = value
End Set
End Property ' MatchValueVariable
#End Region ' Properties
#Region "Internals"
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Private Sub FireError_(ByVal message As String)
Dim cancel As Boolean
Call Me.ComponentMetaData.FireError( _
0, _
"Null Transformation", _
message, _
String.Empty, _
0, _
cancel)
End Sub ' FireError_
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Private Function GetVariable_(ByVal varName As String) As Object
Dim result As Object
Dim vars As IDTSVariables100 = Nothing
Call Me.VariableDispenser.LockOneForRead(varName, vars)
Try
result = vars(varName).Value
Finally
Call vars.Unlock()
End Try
GetVariable_ = result
End Function ' GetVariable_
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Private Function GetInputCols_() As String
Dim result As String = String.Empty
Dim input As IDTSInput100 = MyBase.ComponentMetaData.InputCollection(0)
For Each column As IDTSInputColumn100 In input.InputColumnCollection
If Not String.IsNullOrEmpty(result) Then
result += ColumnSeparator
End If
result += column.Name
Next
GetInputCols_ = result
End Function ' GetInputCols_
#End Region ' Internals
#Region "Attributes"
Public Enum ActionTypes
IsNull
SetNull
End Enum ' ActionTypes
Private m_inputCols As String = String.Empty
Private m_action As ActionTypes = ActionTypes.IsNull
Private m_isValueVar As Boolean
Private m_value As String
Private m_inputIdx() As Integer
Private m_inputTypes() As DataType
Private m_replaceValue As String
Private m_matchValue As Hashtable
#End Region ' Attributes
End Class ' ScriptMain
]]> _
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 Overrides ReadOnly Property StaticOutputColumns() As String()
Get
Return New String() {}
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{205A2432-756C-4C6F-91FC-905BB20C5D6F}LibraryMy ProjectScriptComponent_e52963cf4d394e2c80bfd3c9df07cdd7ScriptComponent_e52963cf4d394e2c80bfd3c9df07cdd7v4.0512BinaryOnOntruefullfalse.\bin\Debug\falsetruetrueprompt4falsetrue.\bin\Release\falsefalsetrueprompt4FalseC:\Program Files (x86)\Microsoft SQL Server\120\SDK\Assemblies\CozyRoc.SSISPlus.2014.dllFalseFalseFalseSSIS_SC120]]> _
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
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Public Sub New(ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
Public Class Variables
Dim ParentComponent As ScriptComponent
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Public Sub New(ByVal Component As ScriptComponent)
ParentComponent = Component
End Sub
End Class
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