The following code example shows how to build the message encoder factory. Public override void WriteMessage(Message message, Stream stream) Int totalLength = messageLength messageOffset īyte totalBytes = bufferManager.TakeBuffer(totalLength) Īrray.Copy(messageBytes, 0, totalBytes, messageOffset, messageLength) ĪrraySegment byteArray = new ArraySegment(totalBytes, messageOffset, messageLength) Int messageLength = (int)stream.Position XmlWriter writer = XmlWriter.Create(stream, this.writerSettings) īyte messageBytes = stream.GetBuffer() MemoryStream stream = new MemoryStream() Public override ArraySegment WriteMessage(Message message, int maxMessageSize, BufferManager bufferManager, int messageOffset) Return Message.CreateMessage(reader, maxSizeOfHeaders, this.MessageVersion) XmlReader reader = XmlReader.Create(stream) Public override Message ReadMessage(Stream stream, int maxSizeOfHeaders, string contentType) Return ReadMessage(stream, int.MaxValue) MemoryStream stream = new MemoryStream(msgContents) Public override Message ReadMessage(ArraySegment buffer, BufferManager bufferManager, string contentType)īyte msgContents = new byte Īrray.Copy(buffer.Array, buffer.Offset, msgContents, 0, msgContents.Length) īufferManager.ReturnBuffer(buffer.Array) Public override MessageVersion MessageVersion = Encoding.GetEncoding(factory.CharSet) This.writerSettings = new XmlWriterSettings() Public CustomTextMessageEncoder(CustomTextMessageEncoderFactory factory) Private XmlWriterSettings writerSettings Private CustomTextMessageEncoderFactory factory public class CustomTextMessageEncoder : MessageEncoder The following code example shows the CustomTextMessageEncoder. As opposed to the optimized XML readers and writers of WCF that support only UTF-8, UTF-16 and big-endian Unicode, these readers and writers support all platform-supported encoding. It uses the XmlReader and XmlWriter to read and write the messages respectively. The message encoder operates both in the streaming mode and the buffered mode. The factory creates the CustomTextMessageEncoder. When the ServiceHost or the client channel is opened, the design time component CustomTextMessageBindingElement creates the CustomTextMessageEncoderFactory. Message Encoder Factory and the Message Encoder To run the sample in a single- or cross-machine configuration, follow the instructions in Running the Windows Communication Foundation Samples. To build the solution, follow the instructions in Building the Windows Communication Foundation Samples. %windir%\Microsoft.NET\Framework\v4.0.XXXXX\aspnet_regiis.exe /i /enableĮnsure that you have performed the One-Time Setup Procedure for the Windows Communication Foundation Samples. Install ASP.NET 4.0 using the following command. Using the custom binding configuration for integrating custom binding elements.ĭeveloping a custom configuration handler to allow file configuration of a custom binding element. The custom encoder implementation consists of a message encoder factory, a message encoder, a message encoding binding element and a configuration handler, and demonstrates the following:īuilding a custom encoder and encoder factory.Ĭreating a binding element for a custom encoder. Both client and service uses the CustomTextMessageEncoder instead of the default TextMessageEncodingBindingElement. The client makes synchronous requests to a given math operation and the service replies with the result. The contract is defined by the ICalculator interface, which exposes math operations (Add, Subtract, Multiply, and Divide). The service implements a contract that defines a request-reply communication pattern. The sample consists of a client console program (.exe), a service library (.dll) hosted by Internet Information Services (IIS), and a text message encoder library (.dll). The custom text message encoder in this sample supports all platform-supported character encodings that may be required for interoperability. The TextMessageEncodingBindingElement of WCF supports only the UTF-8, UTF-16 and big-endian Unicode encodings. The Text sample demonstrates how to implement a custom text message encoder using Windows Communication Foundation (WCF).
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