Converts a client
RequestFields and parameters into
an
HttpWebRequest object.
Syntax
| Visual Basic (Declaration) | |
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Public Class HttpRequestEncoder |
| C# | |
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public class HttpRequestEncoder |
| C++/CLI | |
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public ref class HttpRequestEncoder |
Example
| Visual Basic |  Copy Code |
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Public Class HttpClientCommunication
<Test> _
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)
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 Size(500, 300)
fields.RequestViewWindowFields.FrameSizeRoundingDirection = RoundingDirection.Closest
fields.RequestViewWindowFields.RegionOffset = New Point(0, 100)
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)
listenSocket.Listen(10)
Dim client As Socket = listenSocket.Accept()
listenSocket.Close()
Return client
End Function
End Class |
| C# | Copy Code |
|---|
public void SendClientRequest()
{
Leadtools.Examples.Support.Unlock();
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 Size(500, 300);
fields.RequestViewWindowFields.FrameSizeRoundingDirection = RoundingDirection.Closest;
fields.RequestViewWindowFields.RegionOffset = new Point(0, 100);
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;
} |
Remarks
Inheritance Hierarchy
Requirements
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family
See Also
