DelegatedServer Class

Visual Basic
C#
Objective-C
Java
C++

public class DelegatedServer

'Declaration
 
Public Class DelegatedServer

'Usage
 
Dim instance As DelegatedServer

public ref class DelegatedServer

You create an instance of this class with the properties you want and then you add it to the DelegatedServersCollection collection.

If multiple DelegatedServer are added into the DelegatedServersCollection collection the load is distributed based on a round-robin algorithm until each DelegatedServer receives its share.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
      Imports Leadtools.Codecs
      Imports Leadtools.Jpip
      Imports Leadtools.Jpip.Client.WinForms
      Imports Leadtools.Jpip.Client.InteractiveDecoder
      Imports Leadtools.Jpip.Server
      Imports Leadtools.Jpip.Logging

      Public Class ServerDelegationExample
         Private _server As JpipServer
         Private Const LOCAL_IP_ADDRESS As String = "127.0.0.1"
         Private Const PORT_107 As Integer = 107
         Private IMAGE_NAME As String = Path.Combine(LEAD_VARS.ImagesDir, "Earth8000_Precint_4_.j2k")
         Private CACHE_DIRECTORY As String = Path.Combine(LEAD_VARS.ImagesDir, "jpeg2000")

         Public Sub New()
            _server = New JpipServer()
         End Sub


         Public Sub SetServerDelegation()
#If LEADTOOLS_V175_OR_LATER Then
            Leadtools.Examples.Support.SetLicense()
#Else
         Leadtools.Examples.Support.Unlock()
#End If ' #If LEADTOOLS_V175_OR_LATER Then
            Dim delegatedServer1 As DelegatedServer
            Dim delegatedServer2 As DelegatedServer


            delegatedServer1 = New DelegatedServer("127.0.0.1", 108, 6)
            delegatedServer2 = New DelegatedServer("127.0.0.1", 105, 3)

            _server.Configuration.DelegateServers.Clear()
            _server.Configuration.DelegateServers.Add(delegatedServer1)
            _server.Configuration.DelegateServers.Add(delegatedServer2)

            Console.WriteLine("Server requests will be delegated to the following {0} servers:", _server.Configuration.DelegateServers.Count.ToString())

            For Each server As DelegatedServer In _server.Configuration.DelegateServers
               Console.WriteLine("Server: {0}:{1}", server.IpAddress, server.Port.ToString())
            Next server

            _server.Start()

            ' client side 
            Dim jpipViewer As JpipRasterImageViewer = New JpipRasterImageViewer()
            SetViewer(jpipViewer)
            AddHandler jpipViewer.FileOpened, AddressOf jpipViewer_FileOpened
            jpipViewer.Open(IMAGE_NAME)
         End Sub
         Private Sub jpipViewer_FileOpened(ByVal sender As Object, ByVal e As EventArgs)
            Dim jpipViewer As JpipRasterImageViewer = DirectCast(sender, JpipRasterImageViewer)
            jpipViewer.ZoomIn()
            jpipViewer.Close()

            _server.Stop()


         End Sub

         Public Sub SetViewer(ByVal viewer As JpipRasterImageViewer)
            viewer.CacheDirectoryName = CACHE_DIRECTORY
            viewer.PortNumber = PORT_107
            viewer.IPAddress = LOCAL_IP_ADDRESS
            viewer.PacketSize = 16384
            viewer.ChannelType = JpipChannelTypes.HttpChannel
         End Sub

      End Class

      Public NotInheritable Class LEAD_VARS
      Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
      End Class

using Leadtools;
         using Leadtools.Codecs;
         using Leadtools.Jpip;
         using Leadtools.Jpip.Client.WinForms;
         using Leadtools.Jpip.Client.InteractiveDecoder;
         using Leadtools.Jpip.Server;
         using Leadtools.Jpip.Logging;

         private JpipServer _server;               
         private const string LOCAL_IP_ADDRESS = "127.0.0.1";
         private const int PORT_107 = 107;
         private string IMAGE_NAME = Path.Combine(LEAD_VARS.ImagesDir, "Earth8000_Precint_4_.j2k");
         private string CACHE_DIRECTORY = Path.Combine(LEAD_VARS.ImagesDir, "jpeg2000");
         public ServerDelegationExample ( )
         {
            _server = new JpipServer ( ) ;
         }


         public void SetServerDelegation ( ) 
         {
#if LEADTOOLS_V175_OR_LATER
            Leadtools.Examples.Support.SetLicense();
#else
            Leadtools.Examples.Support.Unlock();
#endif // #if LEADTOOLS_V175_OR_LATER
            DelegatedServer delegatedServer1;
            DelegatedServer delegatedServer2 ;
            delegatedServer1 = new DelegatedServer ( "127.0.0.1", 108, 6 ) ;
            delegatedServer2 = new DelegatedServer ( "127.0.0.1", 105, 3 ) ;
            _server.Configuration.DelegateServers.Clear ( ) ;
            _server.Configuration.DelegateServers.Add ( delegatedServer1 ) ;
            _server.Configuration.DelegateServers.Add ( delegatedServer2 ) ;
            Console.WriteLine ( "Server requests will be delegated to the following {0} servers:", 
                                _server.Configuration.DelegateServers.Count.ToString ( ) ) ;

            foreach ( DelegatedServer server in _server.Configuration.DelegateServers )
            {
               Console.WriteLine ( "Server: {0}:{1}", server.IpAddress, server.Port.ToString ( ) ) ;
            }
            _server.Start ( ) ;

            /* client side */
            JpipRasterImageViewer jpipViewer = new JpipRasterImageViewer();
            jpipViewer.FileOpened += new EventHandler(jpipViewer_FileOpened);
            SetViewer(jpipViewer);
            jpipViewer.Open(IMAGE_NAME);
         }

         void jpipViewer_FileOpened(object sender, EventArgs e)
         {
            JpipRasterImageViewer jpipViewer = ( JpipRasterImageViewer ) sender ;
            jpipViewer.ZoomIn();
            jpipViewer.Close();
            _server.Stop ( ) ;

         }

         public void SetViewer(JpipRasterImageViewer viewer)
         {
            viewer.CacheDirectoryName = CACHE_DIRECTORY;
            viewer.PortNumber = PORT_107;
            viewer.IPAddress = LOCAL_IP_ADDRESS;
            viewer.PacketSize = 16384;
            viewer.ChannelType = JpipChannelTypes.HttpChannel;
         }
      }

         static class LEAD_VARS
         {
         public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
         }

Target Platforms

Reference

DelegatedServer Members
Leadtools.Jpip.Server Namespace