public IBaseMessage Execute(IPipelineContext pContext, IBaseMessage pInMsg)
        {
            string errorMessage;

            if (!Validate(out errorMessage))
            {
                throw new ArgumentException(errorMessage);
            }

            var contentReader = new ContentReader();

            var       data          = pInMsg.BodyPart.GetOriginalDataStream();
            const int bufferSize    = 0x280;
            const int thresholdSize = 0x100000;

            if (!data.CanSeek || !data.CanRead)
            {
                data = new ReadOnlySeekableStream(data, new VirtualStream(bufferSize, thresholdSize), bufferSize);
                pContext.ResourceTracker.AddResource(data);
            }

            if (contentReader.IsXmlContent(data) && contentReader.NamespacExists(data, NamespaceToModify))
            {
                var encoding = contentReader.Encoding(data);

                data = new XmlNamespaceModifier(data, encoding, NewNamespace, null, NamespaceToModify);
                data = new ReadOnlySeekableStream(data, new VirtualStream(bufferSize, thresholdSize), bufferSize);
                pContext.ResourceTracker.AddResource(data);
                pInMsg.BodyPart.Data = data;

                if (ShouldUpdateMessageTypeContext)
                {
                    var rootName = contentReader.GetRootNode(data);

                    var contextReader = new ContextReader();
                    contextReader.UpdateMessageTypeContext(pInMsg.Context, NewNamespace, rootName);
                }
            }
            else
            {
                data.Seek(0, SeekOrigin.Begin);
                pInMsg.BodyPart.Data = data;
            }

            return(pInMsg);
        }
        public IBaseMessage Execute(IPipelineContext pContext, IBaseMessage pInMsg)
        {
            string errorMessage;

            if (!Validate(out errorMessage))
            {
                throw new ArgumentException(errorMessage);
            }

            var contentReader = new ContentReader();

            var data = pInMsg.BodyPart.GetOriginalDataStream();

            if (!data.CanSeek || !data.CanRead)
            {
                const int bufferSize = 0x280;
                const int thresholdSize = 0x100000;
                data = new ReadOnlySeekableStream(data, new VirtualStream(bufferSize, thresholdSize), bufferSize);
                pContext.ResourceTracker.AddResource(data);
            }

            if (contentReader.IsXmlContent(data) && contentReader.NamespacExists(data, NamespaceToModify))
            {
                var encoding = contentReader.Encoding(data);

                data = new ContentWriter().ModifyNamespace(data, NamespaceToModify, NewNamespace, encoding);
                pContext.ResourceTracker.AddResource(data);
                pInMsg.BodyPart.Data = data;

                if (ShouldUpdateMessageTypeContext)
                {
                    var rootName = contentReader.GetRootNode(data);

                    var contextReader = new ContextReader();
                    contextReader.UpdateMessageTypeContext(pInMsg.Context, NewNamespace, rootName);
                }
            }
            else
            {
                data.Seek(0, SeekOrigin.Begin);
                pInMsg.BodyPart.Data = data;
            }

            return pInMsg;
        }