65 lines
2.4 KiB
VB.net

Imports System.ServiceModel
Imports System.Xml
Imports DigitalData.Modules.Base
Imports DigitalData.Modules.EDMI.API.EDMIServiceReference
Imports DigitalData.Modules.Logging
Public Class Channel
Inherits BaseClass
Private ReadOnly ChannelFactory As ChannelFactory(Of IEDMIServiceChannel)
Public Event Reconnect As EventHandler
Public Shared Function GetBinding(Optional AuthenticationMode As TcpClientCredentialType = TcpClientCredentialType.Windows) As NetTcpBinding
Return New NetTcpBinding() With {
.MaxReceivedMessageSize = Constants.ChannelSettings.MAX_RECEIVED_MESSAGE_SIZE,
.MaxBufferSize = Constants.ChannelSettings.MAX_BUFFER_SIZE,
.MaxBufferPoolSize = Constants.ChannelSettings.MAX_BUFFER_POOL_SIZE,
.TransferMode = TransferMode.Streamed,
.Security = New NetTcpSecurity() With {
.Mode = SecurityMode.Transport,
.Transport = New TcpTransportSecurity() With {
.ClientCredentialType = AuthenticationMode
}
},
.ReaderQuotas = New XmlDictionaryReaderQuotas() With {
.MaxArrayLength = Constants.ChannelSettings.MAX_ARRAY_LENGTH,
.MaxStringContentLength = Constants.ChannelSettings.MAX_STRING_CONTENT_LENGTH
}
}
End Function
Public Sub New(pLogConfig As LogConfig, pServerAddress As ServerAddressStruct)
MyBase.New(pLogConfig)
ChannelFactory = GetChannelFactory(pServerAddress)
End Sub
''' <summary>
''' Creates a channel and adds a Faulted-Handler
''' </summary>
''' <returns>A channel object</returns>
Public Function GetChannel() As IEDMIServiceChannel
Try
Logger.Debug("Creating channel.")
Dim oChannel = ChannelFactory.CreateChannel()
AddHandler oChannel.Faulted, Sub() RaiseEvent Reconnect(Me, Nothing)
Return oChannel
Catch ex As Exception
Logger.Error(ex)
Throw ex
End Try
End Function
Private Function GetChannelFactory(pServerAddress As ServerAddressStruct) As ChannelFactory(Of IEDMIServiceChannel)
Dim oBinding = GetBinding()
Dim oAddress = New EndpointAddress($"net.tcp://{pServerAddress.Host}:{pServerAddress.Port}/DigitalData/Services/Main")
Dim oFactory = New ChannelFactory(Of IEDMIServiceChannel)(oBinding, oAddress)
Return oFactory
End Function
End Class