Leadtools.Jpip.RequestEncoder Namespace : HttpRequestEncoder Class |
public class HttpRequestEncoder
'Declaration Public Class HttpRequestEncoder
'Usage Dim instance As HttpRequestEncoder
public sealed class HttpRequestEncoder
function Leadtools.Jpip.RequestEncoder.HttpRequestEncoder()
public ref class HttpRequestEncoder
Use this class to create an System.Net.HttpWebRequest which holds the JPIP parameters to be sent to the server.
Public Class HttpClientCommunication Private Sub SendClientRequest() Dim fields As RequestFields = New RequestFields() Dim cacheModleItem As ModelItem Dim binDescriptor As ExplicitBinDescriptor Dim cacheModleElement As ModelElement fields.RequestTargetFields = New TargetFields("0", "image1.jp2", Nothing) fields.RequestChannelFields.NewChannel = New String() {"http"} fields.RequestDataLimitFields.DataLength = 16384 cacheModleItem = New ModelItem() binDescriptor = New ExplicitBinDescriptor(ExplicitBin.MetaBin, 0, Nothing) 'indicate that metadata bin 0 is locally cached and need not be sent. cacheModleElement = New ModelElement(False, binDescriptor) cacheModleItem.BinDescriptors.Add(cacheModleElement) cacheModleItem.CodeStreamRange.Add(New Range(0, 0)) fields.RequestCacheManagementFields.ModelItems.Add(cacheModleItem) Dim imageType As ImageReturnType = New ImageReturnType(ImageTypes.JppStream, False) fields.RequestServerControlFields.ImageReturnTypes = New ImageReturnType() {imageType} fields.RequestViewWindowFields.FrameSize = New LeadSize(500, 300) fields.RequestViewWindowFields.RegionOffset = New LeadPoint(0, 100) fields.RequestViewWindowFields.FrameSizeRoundingDirection = RoundingDirection.Closest Dim codeStreamRange As SampleRange = New SampleRange() codeStreamRange.Range = New Range(0, 0) fields.RequestViewWindowFields.CodeStream.Add(codeStreamRange) Dim encoder As HttpRequestEncoder = New HttpRequestEncoder(IPAddress.Parse("127.0.0.1"), 108) Dim request As HttpWebRequest = encoder.Encode(fields, "jpip", Nothing) Console.WriteLine(request.Address.ToString()) Dim response As HttpWebResponse = CType(request.GetResponse(), HttpWebResponse) Console.WriteLine("Server response received.") Console.WriteLine(response.Headers.ToString()) End Sub Private Function GetClientSocket() As Socket Dim listenSocket As Socket = New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp) Dim hostIP As IPAddress = IPAddress.Parse("127.0.0.1") Dim port As Integer = 107 Dim ep As IPEndPoint = New IPEndPoint(hostIP, port) listenSocket.Bind(ep) ' start listening listenSocket.Listen(10) 'a client should send a request to the listening address Dim client As Socket = listenSocket.Accept() listenSocket.Close() Return client End Function End Class
public void SendClientRequest() { #if LEADTOOLS_V175_OR_LATER Leadtools.Examples.Support.SetLicense(); #else Leadtools.Examples.Support.Unlock(); #endif // #if LEADTOOLS_V175_OR_LATER RequestFields fields = new RequestFields(); ModelItem cacheModleItem; ExplicitBinDescriptor binDescriptor; ModelElement cacheModleElement; fields.RequestTargetFields = new TargetFields("0", "image1.jp2", null); fields.RequestChannelFields.NewChannel = new string[] { "http" }; fields.RequestDataLimitFields.DataLength = 16384; cacheModleItem = new ModelItem(); binDescriptor = new ExplicitBinDescriptor(ExplicitBin.MetaBin, 0, null); //indicate that metadata bin 0 is locally cached and need not be sent. cacheModleElement = new ModelElement(false, binDescriptor); cacheModleItem.BinDescriptors.Add(cacheModleElement); cacheModleItem.CodeStreamRange.Add(new Range(0, 0)); fields.RequestCacheManagementFields.ModelItems.Add(cacheModleItem); ImageReturnType imageType = new ImageReturnType(ImageTypes.JppStream, false); fields.RequestServerControlFields.ImageReturnTypes = new ImageReturnType[] { imageType }; fields.RequestViewWindowFields.FrameSize = new LeadSize(500, 300); fields.RequestViewWindowFields.RegionOffset = new LeadPoint(0, 100); fields.RequestViewWindowFields.FrameSizeRoundingDirection = RoundingDirection.Closest; SampleRange codeStreamRange = new SampleRange(); codeStreamRange.Range = new Range(0, 0); fields.RequestViewWindowFields.CodeStream.Add(codeStreamRange); HttpRequestEncoder encoder = new HttpRequestEncoder(IPAddress.Parse("127.0.0.1"), 108); HttpWebRequest request = encoder.Encode(fields, "jpip", null); Console.WriteLine(request.Address.ToString()); HttpWebResponse response = (HttpWebResponse) request.GetResponse(); Console.WriteLine("Server response received."); Console.WriteLine(response.Headers.ToString()); } public Socket GetClientSocket() { Socket listenSocket = new Socket( AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress hostIP = IPAddress.Parse("127.0.0.1"); int port = 107; IPEndPoint ep = new IPEndPoint(hostIP, port); listenSocket.Bind(ep); // start listening listenSocket.Listen(10); //a client should send a request to the listening address Socket client = listenSocket.Accept(); listenSocket.Close(); return client; }
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2