Imports System.Data
Imports System.Xml

Public Class clsInstrumentation
    Implements ICloneable

    Private mguidInstrumentationID As Guid
    Private mstrInstrumentationName As String
    Private m_blnObjectAlreadyPersisted As Boolean

    Public Sub New()
        mguidInstrumentationID = Guid.NewGuid
        mstrInstrumentationName = ""
        m_blnObjectAlreadyPersisted = False
    End Sub

    Public Sub New(ByVal lstrInstrumentationName As String)
        Dim ldbcmdCommand As New SqlClient.SqlCommand
        ldbcmdCommand.CommandText = "sel_instrumentation_by_name"

        ldbcmdCommand.CommandType = CommandType.StoredProcedure
        ' Set up parameter for stored procedure 
        Dim prmInstrumentationName As New SqlClient.SqlParameter
        prmInstrumentationName.ParameterName = "@instrumentation_name"
        prmInstrumentationName.SqlDbType = SqlDbType.VarChar
        prmInstrumentationName.Size = MyGlobals.INSTRUMENTATION_NAME_SIZE
        prmInstrumentationName.Value = lstrInstrumentationName
        ldbcmdCommand.Parameters.Add(prmInstrumentationName)

        Dim ldbdsInstrumentations As DataSet = MyGlobals.g_objDatabaseLayer.ExecuteDataSet(ldbcmdCommand)

        If ldbdsInstrumentations.Tables(0).Rows.Count > 0 Then
            Dim ldbrwRow As DataRow
            ldbrwRow = ldbdsInstrumentations.Tables(0).Rows(0)

            PopulateFromDBRow(ldbrwRow)

            ldbdsInstrumentations.Clear()
            m_blnObjectAlreadyPersisted = True
        Else
            ldbdsInstrumentations.Clear()
            mguidInstrumentationID = Guid.NewGuid
            mstrInstrumentationName = lstrInstrumentationName.Trim
            m_blnObjectAlreadyPersisted = False
        End If
    End Sub

    Public Sub New(ByVal lguidInstrumentationID As Guid)
        mguidInstrumentationID = lguidInstrumentationID

        Dim ldbcmdCommand As New SqlClient.SqlCommand
        ldbcmdCommand.CommandText = "sel_instrumentation"

        ldbcmdCommand.CommandType = CommandType.StoredProcedure
        ' Set up parameter for stored procedure 
        Dim prmInstrumentationID As New SqlClient.SqlParameter
        prmInstrumentationID.ParameterName = "@instrumentation_id"
        prmInstrumentationID.SqlDbType = SqlDbType.UniqueIdentifier
        'prmInstrumentationID.Size = 5
        prmInstrumentationID.Value = lguidInstrumentationID
        ldbcmdCommand.Parameters.Add(prmInstrumentationID)

        Dim ldbdsInstrumentations As DataSet = MyGlobals.g_objDatabaseLayer.ExecuteDataSet(ldbcmdCommand)

        If ldbdsInstrumentations.Tables(0).Rows.Count > 0 Then
            Dim ldbrwRow As DataRow
            ldbrwRow = ldbdsInstrumentations.Tables(0).Rows(0)
            PopulateFromDBRow(ldbrwRow)
            m_blnObjectAlreadyPersisted = True
            MyGlobals.AddCachedObject(Me, Me.InstrumentationID.ToString)
        End If
        ldbdsInstrumentations.Clear()
    End Sub

    Public Sub New(ByVal ldbrwRow As DataRow)
        PopulateFromDBRow(ldbrwRow)
        m_blnObjectAlreadyPersisted = True
        MyGlobals.AddCachedObject(Me, Me.InstrumentationID.ToString)
    End Sub

    Private Sub PopulateFromDBRow(ByVal ldbrwRow As DataRow)
        mguidInstrumentationID = CType(ldbrwRow.Item("instrumentation_id"), Guid)

        mstrInstrumentationName = CType(ldbrwRow.Item("instrumentation_name"), String)
    End Sub

    Public Function Delete() As Boolean
        Try
            MyGlobals.RemoveCachedObject(Me.InstrumentationID.ToString)

            Dim ldbcmdCommand As New SqlClient.SqlCommand
            ldbcmdCommand.CommandText = "del_instrumentation"

            ldbcmdCommand.CommandType = CommandType.StoredProcedure
            ' Set up parameter for stored procedure 
            Dim prmInstrumentationID As New SqlClient.SqlParameter
            prmInstrumentationID.ParameterName = "@instrumentation_id"
            prmInstrumentationID.SqlDbType = SqlDbType.UniqueIdentifier
            'prmInstrumentationID.Size = 5
            prmInstrumentationID.Value = mguidInstrumentationID
            ldbcmdCommand.Parameters.Add(prmInstrumentationID)

            Dim lintRowsAffected As Integer = MyGlobals.g_objDatabaseLayer.ExecuteNonQuery(ldbcmdCommand)
            If lintRowsAffected > 0 Then
                m_blnObjectAlreadyPersisted = False
                Return True
            Else
                Return False
            End If
        Catch
            Return False
        End Try

    End Function

    Public Function Save() As Boolean
        Try
            MyGlobals.AddCachedObject(Me, Me.InstrumentationID.ToString)

            If m_blnObjectAlreadyPersisted Then
                Dim ldbcmdCommand As New SqlClient.SqlCommand
                ldbcmdCommand.CommandText = "upd_instrumentation"

                ldbcmdCommand.CommandType = CommandType.StoredProcedure
                ' Set up parameter for stored procedure 
                Dim prmInstrumentationID As New SqlClient.SqlParameter
                prmInstrumentationID.ParameterName = "@instrumentation_id"
                prmInstrumentationID.SqlDbType = SqlDbType.UniqueIdentifier
                'prmInstrumentationID.Size = 5
                prmInstrumentationID.Value = mguidInstrumentationID
                ldbcmdCommand.Parameters.Add(prmInstrumentationID)
                ' Set up parameter for stored procedure 
                Dim prmInstrumentationName As New SqlClient.SqlParameter
                prmInstrumentationName.ParameterName = "@instrumentation_name"
                prmInstrumentationName.SqlDbType = SqlDbType.VarChar
                prmInstrumentationName.Size = MyGlobals.INSTRUMENTATION_NAME_SIZE
                prmInstrumentationName.Value = mstrInstrumentationName
                ldbcmdCommand.Parameters.Add(prmInstrumentationName)

                Dim lintRowsAffected As Integer = MyGlobals.g_objDatabaseLayer.ExecuteNonQuery(ldbcmdCommand)
                If lintRowsAffected > 0 Then
                    Return True
                Else
                    Return False
                End If
            Else
                Dim ldbcmdCommand As New SqlClient.SqlCommand
                ldbcmdCommand.CommandText = "ins_instrumentation"

                ldbcmdCommand.CommandType = CommandType.StoredProcedure
                ' Set up parameter for stored procedure 
                Dim prmInstrumentationID As New SqlClient.SqlParameter
                prmInstrumentationID.ParameterName = "@instrumentation_id"
                prmInstrumentationID.SqlDbType = SqlDbType.UniqueIdentifier
                'prmInstrumentationID.Size = 5
                prmInstrumentationID.Value = mguidInstrumentationID
                ldbcmdCommand.Parameters.Add(prmInstrumentationID)
                ' Set up parameter for stored procedure 
                Dim prmInstrumentationName As New SqlClient.SqlParameter
                prmInstrumentationName.ParameterName = "@instrumentation_name"
                prmInstrumentationName.SqlDbType = SqlDbType.VarChar
                prmInstrumentationName.Size = MyGlobals.INSTRUMENTATION_NAME_SIZE
                prmInstrumentationName.Value = mstrInstrumentationName
                ldbcmdCommand.Parameters.Add(prmInstrumentationName)

                Dim lintRowsAffected As Integer = MyGlobals.g_objDatabaseLayer.ExecuteNonQuery(ldbcmdCommand)
                If lintRowsAffected > 0 Then
                    m_blnObjectAlreadyPersisted = True
                    Return True
                Else
                    Return False
                End If
            End If
        Catch
            Return False
        End Try

    End Function

    Public Function DuplicateExists(ByVal lstrInstrumentationNameToCheck As String) As Boolean
        Try
            Dim ldbcmdCommand As New SqlClient.SqlCommand
            ldbcmdCommand.CommandText = "sel_instrumentation_by_name"

            ldbcmdCommand.CommandType = CommandType.StoredProcedure
            ' Set up parameter for stored procedure 
            Dim prmInstrumentationName As New SqlClient.SqlParameter
            prmInstrumentationName.ParameterName = "@instrumentation_name"
            prmInstrumentationName.SqlDbType = SqlDbType.VarChar
            prmInstrumentationName.Size = MyGlobals.INSTRUMENTATION_NAME_SIZE
            prmInstrumentationName.Value = lstrInstrumentationNameToCheck
            ldbcmdCommand.Parameters.Add(prmInstrumentationName)

            Dim ldbdsInstrumentations As DataSet = MyGlobals.g_objDatabaseLayer.ExecuteDataSet(ldbcmdCommand)

            If ldbdsInstrumentations.Tables(0).Rows.Count > 0 Then
                Dim ldbrwRow As DataRow
                For Each ldbrwRow In ldbdsInstrumentations.Tables(0).Rows
                    If mguidInstrumentationID.Equals(CType(ldbrwRow.Item("instrumentation_id"), Guid)) Then
                        'OK
                    Else
                        ldbdsInstrumentations.Clear()
                        Return True
                    End If
                Next
            End If
            ldbdsInstrumentations.Clear()
            Return False
        Catch
            Return False
        End Try

    End Function

    Public Property InstrumentationID() As Guid
        Get
            Return mguidInstrumentationID
        End Get

        Set(ByVal lguidValue As Guid)
            mguidInstrumentationID = lguidValue
        End Set
    End Property

    Public Property InstrumentationName() As String
        Get
            Return mstrInstrumentationName
        End Get

        Set(ByVal sValue As String)
            mstrInstrumentationName = sValue.Trim
        End Set
    End Property

    Public Property ItemAlreadyPersisted() As Boolean
        Get
            Return m_blnObjectAlreadyPersisted
        End Get
        Set(ByVal Value As Boolean)
            m_blnObjectAlreadyPersisted = Value
        End Set
    End Property

    Public Function Clone() As Object Implements ICloneable.Clone
        Dim lobjReturnValue As New clsInstrumentation
        lobjReturnValue.InstrumentationID = Me.InstrumentationID
        lobjReturnValue.InstrumentationName = Me.InstrumentationName
        lobjReturnValue.ItemAlreadyPersisted = Me.ItemAlreadyPersisted

        Return lobjReturnValue
    End Function

    Public Function StateIsIdentical(ByVal lobjOtherInstrumentation As clsInstrumentation) As Boolean
        If Me.InstrumentationID.Equals(lobjOtherInstrumentation.InstrumentationID) _
        AndAlso Me.InstrumentationName = lobjOtherInstrumentation.InstrumentationName Then
            Return True
        Else
            Return False
        End If
    End Function

    Public Function Validate(ByRef lstrErrorString As String) As Boolean
        lstrErrorString = ""
        If Me.InstrumentationName.Length = 0 Then
            lstrErrorString = "Instrumentation Name is required"
            Return False
        End If

        If Me.DuplicateExists(Me.InstrumentationName) Then
            lstrErrorString = "Given Instrumentation Name already exists"
            Return False
        End If

        Return True
    End Function

    Public Function OKToDelete(ByRef lstrReferencedByString As String) As Boolean
        Dim lblnReturnValue As Boolean

        lblnReturnValue = True

        lstrReferencedByString = ""


        Dim ldbcmdCommand As New SqlClient.SqlCommand
        ldbcmdCommand.CommandText = "sel_instrumentation_isreferenced"

        ldbcmdCommand.CommandType = CommandType.StoredProcedure
        ' Set up parameter for stored procedure 
        Dim prmInstrumentationID As New SqlClient.SqlParameter
        prmInstrumentationID.ParameterName = "@instrumentation_id"
        prmInstrumentationID.SqlDbType = SqlDbType.UniqueIdentifier
        'prmInstrumentationID.Size = 5
        prmInstrumentationID.Value = mguidInstrumentationID
        ldbcmdCommand.Parameters.Add(prmInstrumentationID)

        Dim ldbdsInstrumentations As DataSet = MyGlobals.g_objDatabaseLayer.ExecuteDataSet(ldbcmdCommand)

        If ldbdsInstrumentations.Tables(0).Rows.Count > 0 Then
            lblnReturnValue = False

            Dim ldbrwRow As DataRow
            For Each ldbrwRow In ldbdsInstrumentations.Tables(0).Rows
                If Not ldbrwRow.IsNull("table_referencing_instance") Then
                    If lstrReferencedByString.Length = 0 Then
                        lstrReferencedByString = CType(ldbrwRow.Item("table_referencing_instance"), String) + "(s)"
                    Else
                        lstrReferencedByString = lstrReferencedByString + " and " + CType(ldbrwRow.Item("table_referencing_instance"), String) + "(s)"
                    End If
                End If
            Next

        End If
        ldbdsInstrumentations.Clear()

        Return lblnReturnValue

    End Function

    Public Overrides Function ToString() As String
        Return mstrInstrumentationName
    End Function

    Public Sub WriteXML(ByRef objXMLWriter As XmlTextWriter)
        objXMLWriter.WriteStartElement("Instrumentation")

        objXMLWriter.WriteElementString("InstrumentationID", Me.InstrumentationID.ToString)
        objXMLWriter.WriteElementString("InstrumentationName", Me.InstrumentationName)

        objXMLWriter.WriteEndElement()
    End Sub

    Public Shared Function GetAllInstrumentations() As System.Collections.Generic.List(Of clsInstrumentation)
        Dim lguidInstrumentationID As Guid
        Dim ldbcmdCommand As New SqlClient.SqlCommand
        Dim lobjInstrumentation As clsInstrumentation
        Dim lcolInstrumentations As New System.Collections.Generic.List(Of clsInstrumentation)

        ldbcmdCommand.CommandText = "sel_instrumentation_all"

        ldbcmdCommand.CommandType = CommandType.StoredProcedure
        Dim ldbdsInstrumentations As DataSet = MyGlobals.g_objDatabaseLayer.ExecuteDataSet(ldbcmdCommand)

        If ldbdsInstrumentations.Tables(0).Rows.Count > 0 Then
            Dim ldbrwRow As DataRow
            For Each ldbrwRow In ldbdsInstrumentations.Tables(0).Rows
                lguidInstrumentationID = CType(ldbrwRow.Item("instrumentation_id"), Guid)

                If MyGlobals.CachedObjectExists(lguidInstrumentationID.ToString) Then
                    lobjInstrumentation = CType(MyGlobals.CachedObjectRetrieve(lguidInstrumentationID.ToString), clsInstrumentation)
                Else
                    'lobjInstrumentation = New clsInstrumentation(lguidInstrumentationID)
                    lobjInstrumentation = New clsInstrumentation(ldbrwRow)
                End If
                lcolInstrumentations.Add(lobjInstrumentation)
            Next
        End If
        ldbdsInstrumentations.Clear()

        Return lcolInstrumentations
    End Function

    Public Shared Sub AddAllInstrumentationsToCache()
        If MyGlobals.g_objObjectTypesCached.Contains("Instrumentations") = False Then
            GetAllInstrumentations()
            MyGlobals.g_objObjectTypesCached.Add("Instrumentations")
        End If
    End Sub

End Class