Imports System.Timers
Imports IBM.WMQ
Imports System.ServiceProcess
Imports System.Runtime.Remoting
Imports System.Runtime.Remoting.Channels
Imports System.Xml
Imports System.Data.SqlClient
Imports System.IO
Imports System.Reflection
Imports bms

Public Class EDKB04OP
    Inherits System.ServiceProcess.ServiceBase
    Dim WithEvents tmrQueuePolling As Timer = New Timer(2000)
    Dim myStopper As ErrorStopper


#Region " Vom Component Designer generierter Code "

    Public Sub New()
        MyBase.New()

        ' Dieser Aufruf wird vom Komponenten-Designer benötigt.
        InitializeComponent()

        ' Fügen Sie Initialisierungscode hinter dem InitializeComponent()-Aufruf ein

    End Sub

    ''UserService überschreibt den Löschvorgang zum Bereinigen der Komponentenliste.
    'Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
    '    If disposing Then
    '        If Not (components Is Nothing) Then
    '            components.Dispose()
    '        End If
    '    End If
    '    MyBase.Dispose(disposing)
    'End Sub

    '' Der Haupteinstiegspunkt für den Vorgang
    '<MTAThread()> _
    'Shared Sub Main()
    '    Dim ServicesToRun() As System.ServiceProcess.ServiceBase
    '    ServicesToRun = New System.ServiceProcess.ServiceBase() {New EDKB04OP}
    '    System.ServiceProcess.ServiceBase.Run(ServicesToRun)
    'End Sub



#End Region

#Region "StartStop"

    Protected Overrides Sub OnStart(ByVal args() As String)
        Try


            Dim FileWatch As New FileSystemWatcher()
            'init BMS
#If CONFIG = "Release" Then
            Dim m_log1 As New bms.Logging(6, Common.Common.JobType.WatchJob)
            m_log = m_log1
#Else
            Dim m_log1 As New Globals.log
            m_log = m_log1

#End If
            '#If DEBUG Then
            '            Dim m_log1 As New Globals.log
            '            m_log = m_log1
            '#Else
            'Dim m_log1 As New bms.Logging(6, Common.Common.JobType.WatchJob)
            'm_log = m_log1
            '#End If


            m_log.Start()
            m_log.Log("EDKB04: Start", Common.Common.JournalEntryType.Information)

            'Init Params
            Params.Loadparameters()

            'Init File Watcher
            FileWatch.Path = Params.Watchdir
            FileWatch.IncludeSubdirectories = False
            FileWatch.Filter = "*.xml"
            AddHandler FileWatch.Created, New FileSystemEventHandler(AddressOf OnFileEvent)
            FileWatch.EnableRaisingEvents = True

            'init DB-Connection
            Dim sconnection = New DB_Connection()

            'init Timer
            If CInt(Params.TimerInterval) > 0 Then
                tmrQueuePolling.Start()
            Else
                tmrQueuePolling.Enabled = False
            End If

            'Init Error Stopper
            Me.myStopper = New ErrorStopper
            Me.myStopper.init(Params.nb_errors, Params.nb_seconds)

        Catch ex As Exception
            WriteLog("BMS-Connection / XML: " + ex.Message, appPath + "Error.txt")
            m_log.Log(ex.Message, Common.Common.JournalEntryType.Error)
            Exit Sub
        End Try
    End Sub

    Protected Overrides Sub OnStop()
        ' Hier Code zum Ausführen erforderlicher Löschvorgänge zum Beenden des Dienstes einfügen.
        m_log.Log("EDKB04 Stop", Common.Common.JournalEntryType.Information)
        m_log.Ende()
    End Sub
#End Region

#Region "Log"

    Private Sub WriteLog(ByVal stext As String, ByVal sPfad As String)
        Try
            Dim FiStr As FileStream = New FileStream(sPfad, FileMode.Append)
            Dim StrWr As StreamWriter = New StreamWriter(FiStr)
            StrWr.WriteLine("Fehler: " + Now() & " Text:" & stext)
            StrWr.Close()
        Catch ex As Exception
        End Try
    End Sub

    Private Function writeDebug(ByVal xmlstring As String) As Boolean
        Dim result As Boolean = True
        Try
            Dim writer As System.IO.StreamWriter
            Dim filetimestamp As String = Format(Now, "yyyyMMddHHmmssffff")
            writer = IO.File.AppendText(Params.DebugDir & filetimestamp & ".xml")
            writer.WriteLine(xmlstring)
            writer.Close()
        Catch ex As Exception
            m_log.Log("EDKB04: Error beim Abspeichern der Debug .xml Daten")
            result = False
        End Try
        Return result
    End Function

#End Region

#Region "Timer"
    Public Sub OnTimedEvent(ByVal source As Object, ByVal e As ElapsedEventArgs) Handles tmrQueuePolling.Elapsed
        ReadfromMQ()
    End Sub
#End Region

#Region "File Watcher"
    Private Sub OnFileEvent(ByVal source As Object, ByVal e As FileSystemEventArgs)
        Try
            Threading.Thread.Sleep(2000)
            Dim di As New IO.DirectoryInfo(Params.Watchdir)
            Dim diar1 As IO.FileInfo() = di.GetFiles("*.xml")
            Dim dra As IO.FileInfo
            Dim data As String
            Dim counter As Integer = 0
            For Each dra In diar1
                counter = counter + 1
                Dim fil As New StreamReader(dra.FullName)
                data = fil.ReadToEnd()
                fil.Close()
                'm_log.Log("EDKB04: read File OK", Common.Common.JournalEntryType.Information)
                Dim newending As String = ".err"
                Dim filetimestamp As String = Format(Now, "yyyyMMddHHmmssffff")
                Dim splitter() As String
                Dim splitstring = "<?xml version="
                splitter = Split(data, splitstring)
                For i As Integer = 1 To splitter.Length - 1
                    If XMLtoObj(splitstring + splitter(i)) = True Then
                        'If XMLtoObj(data) = True Then
                        newending = ".xml"
                    Else
                        newending = ".err"
                    End If
                Next

                If Params.DebugMode Then
                    'moven
                    File.Move(dra.FullName, Params.DebugDir & filetimestamp + "_" + dra.Name & newending)
                Else
                    'deleten
                    File.Delete(dra.FullName)
                End If
            Next
        Catch ex As Exception
            m_log.Log("EDKB04: FileWatcher Error: " & ex.Message, Common.Common.JournalEntryType.Error)
        End Try
    End Sub
#End Region

#Region "MQ"

    Private Function ReadfromMQ() As Boolean

        Dim mqQMgr As MQQueueManager            '* MQQueueManager instance
        Dim mqQueue As MQQueue = Nothing        '* MQQueue instance
        Dim queueName As String                 '* Name of queue to use
        Dim strMsg As String
        Dim result As Boolean

        tmrQueuePolling.Stop()
        'm_log.Log("EDKB04: Start MQ Verbindungsaufbau", Common.Common.JournalEntryType.Information)
        queueName = Params.MQQueueName
        Try
            MQEnvironment.Hostname = Params.MQHostname    'Bsp: "vb0049d"
            MQEnvironment.Port = Params.MQPort       'Bsp: 1416
            MQEnvironment.Channel = Params.MQChannel       'Bsp: "TGKB.D16.EDOKA.CL"
            Try
                mqQMgr = New MQQueueManager()
                mqQueue = mqQMgr.AccessQueue(queueName, MQC.MQOO_INPUT_AS_Q_DEF + MQC.MQOO_FAIL_IF_QUIESCING)       '* open queue for input but not if MQM stopping
            Catch ex As Exception
                m_log.Log("EDKB04: MQ Error: " & ex.Message, Common.Common.JournalEntryType.Error)
            End Try

        Catch mqe As IBM.WMQ.MQException
            m_log.Log("EDKB04: Error: " & mqe.Message, Common.Common.JournalEntryType.Error)
            m_log.Log("EDKB04: Errorcode: " & mqe.CompletionCode, Common.Common.JournalEntryType.Error)
            m_log.Log("EDKB04: Reasoncode: " & mqe.ReasonCode, Common.Common.JournalEntryType.Error)
        End Try

        Try
            Dim isContinue As Boolean = True
            Dim strXMLContent As String
            Do While (isContinue = True)
                Dim mqMsg As MQMessage                      '* MQMessage instance
                Dim mqGetMsgOpts As MQGetMessageOptions     '* MQGetMessageOptions instance

                mqMsg = New MQMessage()
                mqGetMsgOpts = New MQGetMessageOptions()
                Try
                    If CInt(Params.TimerInterval) > 0 Then
                        mqGetMsgOpts.WaitInterval = CInt(Params.TimerInterval)
                    Else
                        mqGetMsgOpts.WaitInterval = 15000  '* 15 second limit for waiting
                    End If
                Catch ex As Exception
                    mqGetMsgOpts.WaitInterval = 15000  '* 15 second limit for waiting
                End Try
                mqGetMsgOpts.Options = MQC.MQGMO_WAIT

                Try
                    mqQueue.Get(mqMsg, mqGetMsgOpts)
                    'mqQueue.
                    If (mqMsg.Format.CompareTo(MQC.MQFMT_STRING) = 0) Then
                        strMsg = mqMsg.ReadString(mqMsg.MessageLength)
                        strXMLContent = strMsg
                        'Me.Log("Message Content:" & strMsg)
                        If Params.DebugMode Then
                            Me.writeDebug(strMsg)
                        End If
                        'm_log.Log("EDKB04: Message Length:" & Len(strMsg) & " Chars", Common.Common.JournalEntryType.Information)
                        If XMLtoObj(strXMLContent) = True Then
                            'XMLtoObj(strXMLContent)
                        Else
                            result = False
                        End If
                        result = True
                    Else
                        If Me.myStopper.insert Then m_log.Log("EDKB04: Non-text message", Common.Common.JournalEntryType.Error)
                        result = False
                    End If
                Catch mqe As IBM.WMQ.MQException
                    '* report reason, if any
                    If (mqe.Reason = MQC.MQRC_NO_MSG_AVAILABLE) Then
                        '* special report for normal end
                        m_log.Log("EDKB04: no more messages", Common.Common.JournalEntryType.Information)
                        isContinue = False
                    Else
                        '* general report for other reasons
                        If Me.myStopper.insert Then m_log.Log("EDKB04: MQQueue::Get ended with {0}: " & mqe.Message, Common.Common.JournalEntryType.Error)

                        '* treat truncated message as a failure for this sample
                        'If (mqe.Reason = MQC.MQRC_TRUNCATED_MSG_FAILED) Then
                        isContinue = False
                        'End If
                    End If
                    result = False
                End Try
                If LCase(Params.LoopQueue) = "false" Then
                    isContinue = False
                End If
            Loop
        Catch ex As Exception
            If Me.myStopper.insert Then m_log.Log("EDKB04: Error bei GET: " & ex.Message, Common.Common.JournalEntryType.Error)
            result = False
        Finally
            If CInt(Params.TimerInterval) > 0 Then
                tmrQueuePolling.Start()
            End If
        End Try
        Return result
    End Function

    Private Function XMLtoObj(ByVal strXMLContent As String) As Boolean
        Dim result As Boolean
        Try
            'm_log.Log("EDKB04: Lese XML String in Objekt", Common.Common.JournalEntryType.Information)
            Dim xmlh As New xmlHandling(strXMLContent)
            result = xmlh.Result
            xmlh = Nothing
            'm_log.Log("EDKB04: Lese XML String in Objekt ENDE", Common.Common.JournalEntryType.Information)
        Catch ex As Exception
            m_log.Log("EDKB04: Error bei XML->Obj: " & ex.Message, Common.Common.JournalEntryType.Error)
            result = False
        End Try
        Return result
    End Function

#End Region




End Class