Interfaces: Support ZUGFeRD 1.0 - 2.1.1

Modules.Interfaces/ZUGFeRDInterface.vb

@@ -11,9 +11,6 @@ Public Class ZUGFeRDInterface
     Private _logConfig As LogConfig
     Private _logger As Logger
 
-    Private Const ZUGFERD_CONVERTER_EXE = "ZUGFeRDInterface\pdf_zugferd_test.exe" 'ZUGFeRDInterface\pdf_zugferd_lib\pdf_zugferd_test.exe
-    Private Const ZUGFERD_CONVERTER_SUCCESS_MESSAGE = "Document contains ZUGFeRD data."
-
     Public Enum ErrorType
         NoValidFile
         NoZugferd
@@ -46,7 +43,7 @@ Public Class ZUGFeRDInterface
     ''' <param name="Path"></param>
     ''' <exception cref="ZUGFeRDExecption"></exception>
     ''' <returns></returns>
-    Public Function ExtractZUGFeRDFileWithGDPicture(Path As String) As CrossIndustryDocumentType
+    Public Function ExtractZUGFeRDFileWithGDPicture(Path As String) As Object
         Dim oXmlDocument = ValidateZUGFeRDFileWithGDPicture(Path)
 
         If IsNothing(oXmlDocument) Then
@@ -62,7 +59,7 @@ Public Class ZUGFeRDInterface
     ''' <param name="Stream"></param>
     ''' <exception cref="ZUGFeRDExecption"></exception>
     ''' <returns></returns>
-    Public Function ExtractZUGFeRDFileWithGDPicture(Stream As Stream) As CrossIndustryDocumentType
+    Public Function ExtractZUGFeRDFileWithGDPicture(Stream As Stream) As Object
         Dim oXmlDocument = ValidateZUGFeRDFileWithGDPicture(Stream)
 
         If IsNothing(oXmlDocument) Then
@@ -164,16 +161,45 @@ Public Class ZUGFeRDInterface
         End Try
     End Function
 
-    Public Function SerializeZUGFeRDDocument(Document As XPathDocument) As CrossIndustryDocumentType
+    Public Function SerializeZUGFeRDDocument(Document As XPathDocument) As Object
         Try
             Dim oNavigator As XPathNavigator = Document.CreateNavigator()
-            Dim oReader = oNavigator.ReadSubtree()
-            Dim oSerializer As New XmlSerializer(GetType(CrossIndustryDocumentType))
+            Dim oReader As XmlReader
+            Dim oResult = Nothing
+
+            Dim oTypes As New List(Of Type) From {
+                GetType(ZUGFeRD.Version1_0.CrossIndustryDocumentType),
+                GetType(ZUGFeRD.Version2_0.CrossIndustryInvoiceType),
+                GetType(ZUGFeRD.Version2_1_1.CrossIndustryInvoiceType)
+            }
+
+            For Each oType In oTypes
+                _logger.Debug("Trying Type [{0}]", oType.FullName)
+                Dim oSerializer As New XmlSerializer(oType)
+
+                Try
+                    oReader = oNavigator.ReadSubtree()
+                    oResult = oSerializer.Deserialize(oReader)
+                    _logger.Debug("Serializing with type [{0}] succeeded", oType.FullName)
+                    Exit For
+                Catch ex As Exception
+                    _logger.Debug("Serializing with type [{0}] failed", oType.FullName)
+                    _logger.Debug(ex.Message)
+                    _logger.Error(ex.InnerException?.Message)
+                End Try
+            Next
+
+            If oResult Is Nothing Then
+                Throw New ApplicationException("No Types matched the given document. Document could not be serialized.")
+            End If
+
+            Return oResult
 
-            Return oSerializer.Deserialize(oReader)
         Catch ex As Exception
             _logger.Error(ex)
             Throw New ZUGFeRDExecption(ErrorType.NoValidZugferd, "Datei ist eine ungültige ZUGFeRD Datei.")
         End Try
     End Function
+
+
 End Class