90 lines
3.3 KiB
VB.net
90 lines
3.3 KiB
VB.net
Imports DigitalData.Modules.Database
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Imports DigitalData.Modules.Logging
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Imports DigitalData.Modules.Language
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Imports System.IO
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Namespace Methods.GetFileObject
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Public Class GetFileObjectMethod
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Inherits BaseMethod
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Public Sub New(pLogConfig As LogConfig, pDatabaseIDB As MSSQLServer, pDatabaseECM As MSSQLServer, pGlobalState As GlobalState)
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MyBase.New(pLogConfig, pDatabaseIDB, pDatabaseECM, pGlobalState)
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End Sub
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Public Function Run(pData As GetFileObjectRequest) As GetFileObjectResponse
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Try
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If Helpers.TestObjectIdExists(pData.ObjectId) = False Then
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LogAndThrow("ObjectId does not exist!")
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End If
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Dim oSQL = $"SELECT * FROM VWIDB_FILE_OBJECT WHERE IDB_OBJ_ID = {pData.ObjectId}"
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Dim oTable = DatabaseIDB.GetDatatable(oSQL)
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If oTable Is Nothing OrElse oTable.Rows.Count = 0 Then
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LogAndThrow("Error while getting FileObject data!")
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End If
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Dim oRow As DataRow = oTable.First()
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Dim oFileHash As String = oRow.ItemEx("FILE_HASH", "")
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Dim oFileSize As Long = oRow.ItemEx(Of Long)("FILE_SIZE", 0)
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Dim oFileExtension As String = oRow.ItemEx(Of String)("EXTENSION")
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Dim oFileObject As New FileObject With {
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.ObjectId = pData.ObjectId,
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.FileHash = oFileHash,
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.FileSize = oFileSize,
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.FileExtension = oFileExtension
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}
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If pData.LoadFileContents = True Then
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Dim oFilePath = oRow.ItemEx("RELPATH", "")
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Dim oFileName = oRow.ItemEx("Filename", "")
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Dim oFullFileName = Path.Combine(oFilePath, oFileName)
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If File.Exists(oFullFileName) = False Then
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Throw New FileNotFoundException("FileObject not Found!", oFullFileName)
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End If
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Dim oContents As Byte() = LoadFileContents(oFullFileName)
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If oContents Is Nothing Then
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Throw New FileNotFoundException("FileObject not Found!", oFullFileName)
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End If
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oFileObject.FileContents = oContents
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End If
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Return New GetFileObjectResponse(oFileObject)
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Catch ex As FileNotFoundException
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Logger.Error(ex)
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Return New GetFileObjectResponse(ex, ex.FileName)
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Catch ex As Exception
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Logger.Error(ex)
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Return New GetFileObjectResponse(ex)
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End Try
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End Function
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Private Function LoadFileContents(pFilePath As String) As Byte()
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Try
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Using oFileStream As New FileStream(pFilePath, FileMode.Open, FileAccess.Read)
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Using oMemoryStream As New MemoryStream()
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oFileStream.CopyTo(oMemoryStream)
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Dim oContents = oMemoryStream.ToArray()
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Return oContents
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End Using
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End Using
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Catch ex As Exception
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Logger.Error(ex)
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Return Nothing
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End Try
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End Function
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End Class
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End Namespace |