public IBaseMessage Execute(IPipelineContext pipelineContext, IBaseMessage message)
{
var translationSet = BuildXmlTranslationSet(message);
if (translationSet.Items.Any())
{
message.BodyPart.WrapOriginalDataStream(
originalStream => {
var substitutionStream = new XmlTranslatorStream(
new XmlTextReader(originalStream),
Encoding,
translationSet.Items,
Modes);
return(substitutionStream);
},
pipelineContext.ResourceTracker);
if (_logger.IsDebugEnabled)
{
_logger.DebugFormat("Trying to probe and promote translated XML output's message type.");
}
message.TryProbeAndPromoteMessageType(pipelineContext);
}
return(message);
}
public IBaseMessage Execute(IPipelineContext pipelineContext, IBaseMessage message)
{
if (pipelineContext == null)
{
throw new ArgumentNullException(nameof(pipelineContext));
}
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
var translationSet = BuildXmlTranslationSet(message);
if (translationSet.Items.Any())
{
message.BodyPart.WrapOriginalDataStream(
originalStream => {
var substitutionStream = new XmlTranslatorStream(
new XmlTextReader(originalStream)
{
DtdProcessing = DtdProcessing.Prohibit
},
Encoding,
translationSet.Items,
Modes);
return(substitutionStream);
},
pipelineContext.ResourceTracker);
if (_logger.IsDebugEnabled)
{
_logger.Debug("Trying to probe and promote translated XML output's message type.");
}
message.TryProbeAndPromoteMessageType(pipelineContext);
}
return(message);
}
/// <summary>
/// Transforms original stream using streaming scalable transformation from BizTalk API.
/// </summary>
/// <param name="inputStream"></param>
/// <returns></returns>
internal Stream TransformMessage(Stream inputStream, TransformMetaData map, IBaseMessage pInMsg)
{
XsltArgumentList args = null;
Context ext = null;
SchemaMetadata targetSchema = targetSchema = map.TargetSchemas[0];
string portname = String.Empty;
//It is possible to add a param but then you you need to work arounds in the map
// map.ArgumentList.AddParam
//The statement bellow caused me some problems that was solved by creating the XsltArgumentList instead
//args = map.ArgumentList;
try
{
ext = new Context();
for (int i = 0; i < pInMsg.Context.CountProperties; i++)
{
string name;
string ns;
string value = pInMsg.Context.ReadAt(i, out name, out ns).ToString();
ext.Add(name, value, ns);
if (m_portDirection == PortDirection.receive && name == "ReceivePortName")
{
portname = value;
}
else if (m_portDirection == PortDirection.send && name == "SPName")
{
portname = value;
}
}
//It is possible to add any information that should be available from the map
ext.Add("MessageID", pInMsg.MessageID.ToString());
args = new XsltArgumentList();
//args.AddExtensionObject("http://www.w3.org/1999/XSL/Transform", ext); strangely it seams i cannot use this namespace in vs 2012, but it worked in vs 2010
args.AddExtensionObject("urn:schemas-microsoft-com:xslt", ext);
AddParameters(args);
//2017-08-23 Added intermidiate stream as Transform kills the original stream,
//this is a problem if the incomming message is a enveloped message.
XmlTranslatorStream stm = new XmlTranslatorStream(XmlReader.Create(inputStream));
VirtualStream outputStream = new VirtualStream(VirtualStream.MemoryFlag.AutoOverFlowToDisk);
XmlTextReader xmlTextReader = new XmlTextReader((TextReader) new StringReader(map.XmlContent));
BTSXslTransform btsXslTransform = new BTSXslTransform();
btsXslTransform.Load((XmlReader)xmlTextReader, new MemoryResourceResolver(portname, m_portDirection), (System.Security.Policy.Evidence)null);
btsXslTransform.Transform(stm, args, outputStream, null);
outputStream.Seek(0, SeekOrigin.Begin);
pInMsg.Context.Promote("MessageType", _systemPropertiesNamespace, targetSchema.SchemaName);
pInMsg.Context.Promote("SchemaStrongName", _systemPropertiesNamespace, targetSchema.ReflectedType.AssemblyQualifiedName);
//pInMsg.MessageID.ToString()
return(outputStream);
}
catch (Exception ex)
{
throw new ApplicationException(string.Format("Error while trying to transform using MapType specification: {0}", _mapName), ex);
}
}
