FileFlow/Global_Indexer/ClassPostprocessing.vb

96 lines
3.8 KiB
VB.net

Imports System.Text.RegularExpressions
Imports DigitalData.Modules.Base
Imports DigitalData.Modules.Logging
Public Class ClassPostprocessing
Inherits BaseClass
Public Const VBSPLIT = "VBSPLIT"
Public Const VBREPLACE = "VBREPLACE"
Public Const REGEXPRESSION = "REG. EXPRESSION"
Public Sub New(pLogConfig As LogConfig)
MyBase.New(pLogConfig)
End Sub
Public Function Get_Nachbearbeitung_Wert(idxvalue As String, Datatable As DataTable) As String
Dim oIndexValues As List(Of String) = idxvalue.Split(ClassConstants.VECTORSEPARATOR).ToList()
Try
For Each oDataRow As DataRow In Datatable.Rows
Dim oResult As New List(Of String)
Dim oType As String = oDataRow.Item("TYPE").ToString.ToUpper
Logger.Info(" ...Nachbearbeitung mit [{0}]", oType)
Select Case oType
Case VBSPLIT
Dim oSeparator As String = oDataRow.Item("TEXT1")
Dim oSplitIndex As Integer = 0
Integer.TryParse(oDataRow.Item("TEXT2"), oSplitIndex)
For Each oIndexValue In oIndexValues
Dim oSplitted As List(Of String) = oIndexValue.Split(oSeparator).ToList()
oResult.Add(oSplitted.Item(oSplitIndex))
Next
Case VBREPLACE
Dim oFindString = oDataRow.Item("TEXT1")
Dim oReplaceString = oDataRow.Item("TEXT2")
Logger.Info(" ...Ersetze '" & oFindString & "' mit '" & oReplaceString & "'")
For Each oIndexValue In oIndexValues
Dim oReplaceResult = oIndexValue.Replace(oFindString, oReplaceString)
oResult.Add(oReplaceResult)
Next
Case REGEXPRESSION
Dim oRegexList As New List(Of Regex)
Dim oRegex As New Regex(oDataRow.Item("TEXT1"), RegexOptions.IgnoreCase)
oRegexList.Add(oRegex)
For Each oIndexValue In oIndexValues
Dim oProcessedString = ExtractFromStringWithRegex(oIndexValue, oRegexList)
oResult.Add(oProcessedString)
Logger.Info(" ...Ergebnis des RegEx: " & oProcessedString)
Next
End Select
oIndexValues = oResult
Next
Catch ex As Exception
Logger.Error(ex)
End Try
Return String.Join(ClassConstants.VECTORSEPARATOR, oIndexValues.ToArray)
End Function
''' <summary>
''' Extrahiert aus dem String anhand einer Liste von Regular Expressions ein Ergebnis.
''' </summary>
''' <param name="SearchString">Der zu untersuchende String erzeugt wurden.</param>
''' <param name="RegexList">Eine Liste von Regular Expressions</param>
''' <param name="RegexGroup">Die Ergebnisgruppe, die die Adresse enthält</param>
''' <returns>Eine Emailadresse oder Nothing, wenn keine der Regular Expressions ein Ergebnis lieferte.</returns>
Private Function ExtractFromStringWithRegex(SearchString As String, RegexList As List(Of Regex), Optional RegexGroup As Integer = 1)
If IsNothing(SearchString) Then
Return Nothing
End If
For Each rx In RegexList
Dim match As Match = rx.Match(SearchString)
Dim result As String = match.Groups(RegexGroup).Value
If Not String.IsNullOrWhiteSpace(result) Then
'Nur den ersten Wert zurückgeben
Return result
End If
Next
Return Nothing
End Function
End Class