]]> _
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Public Class ScriptMain
Inherits UserComponent
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Public Overrides Sub Input_ProcessInputRow(ByVal Row As InputBuffer)
Call m_list.Add(New RangeValue( _
Row.Buffer(m_startIndex), _
Row.Buffer(m_endIndex), _
Row.Buffer(m_valueIndex)))
End Sub ' Input_ProcessInputRow
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Public Overrides Sub PreExecute()
Call MyBase.PreExecute()
' Setup range list object.
Dim vars As IDTSVariables90
Call Me.VariableDispenser.LockOneForWrite(Me.ResultVariable, vars)
Try
Try
Dim rvd As RangeValueDictionary = CType( _
vars(Me.ResultVariable).Value, _
RangeValueDictionary)
m_list = rvd.Ranges
Catch ex As Exception
' Dictionary not yet initialized.
m_list = New List(Of RangeValue)
vars(Me.ResultVariable).Value = New RangeValueDictionary(m_list)
End Try
Finally
Call vars.Unlock()
End Try
Dim input As IDTSInput90 = Me.ComponentMetaData.InputCollection(0)
' Find range start column index.
m_startIndex = Me.HostComponent.BufferManager.FindColumnByLineageID( _
input.Buffer, _
input.InputColumnCollection(Me.StartColumn).LineageID)
' Find range end column index.
m_endIndex = Me.HostComponent.BufferManager.FindColumnByLineageID( _
input.Buffer, _
input.InputColumnCollection(Me.EndColumn).LineageID)
' Find value column index.
m_valueIndex = Me.HostComponent.BufferManager.FindColumnByLineageID( _
input.Buffer, _
input.InputColumnCollection(Me.ValueColumn).LineageID)
End Sub ' PreExecute
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Public Overrides Sub PostExecute()
Call MyBase.PostExecute()
' Sort for binary search to work.
Call m_list.Sort()
m_list = Nothing
m_startIndex = -1
m_endIndex = -1
m_valueIndex = -1
End Sub ' PostExecute
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Public Function Validate(ByRef errMessage As String) As Boolean
Dim result As Boolean = True
Try
If String.IsNullOrEmpty(Me.StartColumn) Then
Throw New Exception("Select range start column.")
ElseIf String.IsNullOrEmpty(Me.EndColumn) Then
Throw New Exception("Select range end colum.")
ElseIf String.IsNullOrEmpty(Me.ValueColumn) Then
Throw New Exception("Select value colum.")
ElseIf String.IsNullOrEmpty(Me.ResultVariable) Then
Throw New Exception("Select dictionary result variable.")
Else
Dim managedComponent As CManagedComponentWrapper = Me.ComponentMetaData.Instantiate()
Dim input As IDTSInput90 = Me.ComponentMetaData.InputCollection(0)
Dim virtInput As IDTSVirtualInput90 = input.GetVirtualInput()
Call input.InputColumnCollection.RemoveAll()
' Setup selected range start column.
Dim startColumn As IDTSInputColumn90 = managedComponent.SetUsageType( _
input.ID, _
virtInput, _
virtInput.VirtualInputColumnCollection(Me.StartColumn).LineageID, _
DTSUsageType.UT_READONLY)
' Setup selected range start column.
Dim endColumn As IDTSInputColumn90 = managedComponent.SetUsageType( _
input.ID, _
virtInput, _
virtInput.VirtualInputColumnCollection(Me.EndColumn).LineageID, _
DTSUsageType.UT_READONLY)
' Setup selected value column.
Dim valueColumn As IDTSInputColumn90 = managedComponent.SetUsageType( _
input.ID, _
virtInput, _
virtInput.VirtualInputColumnCollection(Me.ValueColumn).LineageID, _
DTSUsageType.UT_READONLY)
End If
Catch ex As Exception
result = False
errMessage = ex.Message
End Try
Validate = result
End Function ' Validate
#Region "Properties"
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Public Property StartColumn() As String
Get
StartColumn = m_startColumn
End Get
Set(ByVal value As String)
m_startColumn = value
End Set
End Property ' StartColumn
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_
_
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Public Property EndColumn() As String
Get
EndColumn = m_endColumn
End Get
Set(ByVal value As String)
m_endColumn = value
End Set
End Property ' EndColumn
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_
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Public Property ValueColumn() As String
Get
ValueColumn = m_valueColumn
End Get
Set(ByVal value As String)
m_valueColumn = value
End Set
End Property ' ValueColumn
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
_
_
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Public Property ResultVariable() As String
Get
ResultVariable = m_resultVar
End Get
Set(ByVal value As String)
m_resultVar = value
End Set
End Property ' ResultVariable
#End Region ' Properties
#Region "Attributes"
Private m_startColumn As String
Private m_endColumn As String
Private m_valueColumn As String
Private m_resultVar As String
Private m_list As List(Of RangeValue)
Private m_startIndex As Integer
Private m_endIndex As Integer
Private m_valueIndex As Integer
#End Region ' Attributes
End Class ' ScriptMain
]]> 0 AndAlso compareEnd > 0 Then
Return 1
End If
If compareStart = 0 AndAlso compareEnd = 0 Then
Return 0
End If
Throw New ArgumentException("Overlapping Range.")
End Function ' CompareTo
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Returns:
' 0 if value is in the specified range.
' < 0 if value is below the range.
' > 0 if value is above the range.
Public Function CompareTo(ByVal key As Object) As Integer
Dim compareStart As Integer = m_start.CompareTo(key)
Dim compareEnd As Integer = m_end.CompareTo(key)
If compareStart <= 0 AndAlso compareEnd >= 0 Then
Return 0
ElseIf compareEnd < 0 Then
Return -1
End If
Return 1
End Function ' CompareTo
#Region "Properties"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property Value() As Object
Get
Return m_value
End Get
End Property ' Value
#End Region ' Properties
#Region "Attributes"
Private m_start As IComparable
Private m_end As IComparable
Private m_value As Object
#End Region ' Attributes
End Class ' RangeValue
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' The only implemented IDictionary interface methods are: Contains, Item Get
'
' Uses binary search to find value in specialized Ranges array.
Public Class RangeValueDictionary
Implements IDictionary
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Sub New(ByVal list As List(Of RangeValue))
m_list = list
End Sub ' RangeValueDictionary
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Sub CopyTo(ByVal array As Array, ByVal index As Integer) Implements ICollection.CopyTo
Throw New Exception("Not Implemented.")
End Sub ' CopyTo
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Sub Add(ByVal key As Object, ByVal value As Object) Implements IDictionary.Add
Throw New Exception("Not Implemented.")
End Sub ' Add
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Sub Clear() Implements IDictionary.Clear
Throw New Exception("Not Implemented.")
End Sub ' Clear
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Function Contains(ByVal key As Object) As Boolean Implements IDictionary.Contains
Contains = GetKeyIndex_(key) >= 0
End Function ' Contains
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Public Function GetEnumerator() As IDictionaryEnumerator Implements IDictionary.GetEnumerator
Throw New Exception("Not Implemented.")
End Function ' GetEnumerator
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Sub Remove(ByVal key As Object) Implements IDictionary.Remove
Throw New Exception("Not Implemented.")
End Sub ' Remove
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public Function GetEnumerator1() As IEnumerator Implements IEnumerable.GetEnumerator
Throw New Exception("Not Implemented.")
End Function ' GetEnumerator1
#Region "Properties"
Public ReadOnly Property Ranges() As List(Of RangeValue)
Get
Return m_list
End Get
End Property ' Ranges
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Public ReadOnly Property Count() As Integer Implements ICollection.Count
Get
Throw New Exception("Not Implemented.")
End Get
End Property ' Count
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property IsSynchronized() As Boolean Implements ICollection.IsSynchronized
Get
IsSynchronized = False
End Get
End Property ' IsSynchronized
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property SyncRoot() As Object Implements ICollection.SyncRoot
Get
Return m_list
End Get
End Property ' SyncRoot
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property IsFixedSize() As Boolean Implements IDictionary.IsFixedSize
Get
IsFixedSize = True
End Get
End Property ' IsFixedSize
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property IsReadOnly() As Boolean Implements IDictionary.IsReadOnly
Get
IsReadOnly = True
End Get
End Property ' IsReadOnly
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Default Public Property Item(ByVal key As Object) As Object Implements IDictionary.Item
Get
Dim index As Integer = GetKeyIndex_(key)
Dim rangeValue As RangeValue = m_list(index)
Return rangeValue.Value
End Get
Set(ByVal value As Object)
Throw New Exception("Not Implemented.")
End Set
End Property ' Item
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property Keys() As ICollection Implements IDictionary.Keys
Get
Throw New Exception("Not Implemented.")
End Get
End Property ' Keys
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Public ReadOnly Property Values() As ICollection Implements IDictionary.Values
Get
Throw New Exception("Not Implemented.")
End Get
End Property ' Values
#End Region ' Properties
#Region "Internals"
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Private Function GetKeyIndex_(ByVal key As Object) As Integer
If Not m_cachedKey Is Nothing AndAlso m_cachedKey.CompareTo(key) = 0 Then
' Searched key index is already cached.
Return m_cachedIndex
End If
m_cachedKey = CType(key, IComparable)
m_cachedIndex = BinarySearch_(key)
GetKeyIndex_ = m_cachedIndex
End Function ' GetKeyIndex_
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Binary search for specified key.
Private Function BinarySearch_(ByVal key As Object) As Integer
Dim min As Integer = 0
Dim max As Integer = m_list.Count - 1
Do While min <= max
Dim mid As Integer = (min + max) >> 1
Dim compare As Integer = m_list(mid).CompareTo(key)
If compare = 0 Then
Return mid
End If
If compare < 0 Then
min = mid + 1
Else
max = mid - 1
End If
Loop
Return Not min
End Function ' BinarySearch_
#End Region ' Internals
#Region "Attributes"
Private m_list As List(Of RangeValue)
Private m_cachedKey As IComparable
Private m_cachedIndex As Integer
#End Region ' Attributes
End Class ' RangeDictionary
]]>ScriptComponent_db237b1b862b4617bf8f943a1156d8a0trueCozyRoc.SqlServer.SSIS.ScriptComponentHostPlus, CozyRoc.SSISPlus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=16cf490bb80c34ea