public override int ReadFrom(Stream channel)
{
this.ExpectIncomplete();
var read = 0;
// have we read the request size yet?
if (this.sizeBuffer.Remaining() > 0)
{
read += channel.Read(this.sizeBuffer.Array, 0, 4);
this.sizeBuffer.Position = read;
}
// have we allocated the request buffer yet?
if (this.contentBuffer == null && !this.sizeBuffer.HasRemaining())
{
this.sizeBuffer.Rewind();
var size = this.sizeBuffer.GetInt();
if (size <= 0)
{
throw new InvalidRequestException(string.Format("{0} is not a valid request size", size));
}
if (size > this.MaxSize)
{
throw new InvalidRequestException(
string.Format(
"Request of length {0} is not valid, it is larget than the maximum size of {1} bytes",
size,
this.MaxSize));
}
this.contentBuffer = this.ByteBufferAllocate(size);
}
// if we have a buffer read some stuff into it
if (this.contentBuffer != null)
{
read = channel.Read(this.contentBuffer.Array, (int)(this.contentBuffer.ArrayOffset() + this.contentBuffer.Position), this.contentBuffer.Remaining());
this.contentBuffer.Position += read;
// did we get everything?
if (!this.contentBuffer.HasRemaining())
{
this.contentBuffer.Rewind();
this.complete = true;
}
}
return read;
}
public abstract void WriteTo(ByteBuffer bufffer);