Streaming with WCF - Part 2: Plugging a custom stream into a WCF service

Last time, I introduced this topic and gave an example of a custom stream implementation.  This time, I'm going to make a few enhancements to this implementation and get into the topic of using it in a WCF Service.

 

Streaming with WCF

Part 2: Plugging a custom stream into a WCF service

So, I've made a couple modifications to the CustomStreamImplementation.  I added a couple knobs to control when it stops streaming.  Here's the complete code:

using System;

using System.IO;

using System.Threading;

 

namespace CustomStreamImplementation

{

    public class ContinuousStream : Stream

    {

        // Used to control when Read will return 0.

        public bool StopStreaming { get; set; }

 

        public TimeSpan ReadThrottle { get; set; }

 

        // Only set this if you don't want to manually control when

        // the stream stops.

        // Keep it low - less than 1 second.  The server can send bytes very quickly (without a throttle), so

        // sending a continuous stream will easily blow the MaxReceivedMessageSize buffer.

        public TimeSpan StreamDuration { get; set; }

 

        DateTime readStartedTime;

        long totalBytesRead = 0;

 

        public override bool CanRead

        {

            get { return !StopStreaming; }

        }

 

        public override bool CanSeek

        {

            get { return false; }

        }

 

        public override bool CanWrite

        {

            get { return false; }

        }

 

        public override long Length

        {

            get { throw new NotImplementedException(); }

        }

Read more: James Osborne's Blog

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