/// <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(pInMsg.Context, pInMsg.MessageID.ToString());
args = map.ArgumentList;//Include BizTalk extensions
//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.RemoveExtensionObject("urn:schemas-microsoft-com:xslt");
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));
//Opted to use non disposable stream instead
NonDisposableStream stm = new NonDisposableStream(inputStream);
VirtualStream outputStream = new VirtualStream(VirtualStream.MemoryFlag.AutoOverFlowToDisk);
//TODO test to add declaration and see what happens with params!!!!!!!!!!!!!!!!!!!!!!!!
BTSXslTransform btsXslTransform = null;
if (Transforms.ContainsKey(map))
{
btsXslTransform = Transforms[map];
}
else
{
btsXslTransform = new BTSXslTransform();
XmlTextReader xmlTextReader = new XmlTextReader((TextReader) new StringReader(map.XmlContent));
btsXslTransform.Load((XmlReader)xmlTextReader, new MemoryResourceResolver(map.Assembly), (System.Security.Policy.Evidence)null);
Transforms.TryAdd(map, btsXslTransform);
}
btsXslTransform.Transform(stm, args, outputStream, null);
outputStream.Seek(0, SeekOrigin.Begin);
if (_dynamicMap)
{
pInMsg.Context.Write("XSLTransform", "PipelineComponents.XSLTransform", map.AssemblyQualifiedName);
}
pInMsg.Context.Promote("MessageType", _systemPropertiesNamespace, targetSchema.SchemaName);
//Changed to Write as SchemaStrongName could exceed 255 chars
pInMsg.Context.Write("SchemaStrongName", _systemPropertiesNamespace, targetSchema.ReflectedType.AssemblyQualifiedName);
//pInMsg.MessageID.ToString()
return(outputStream);
}
catch (Exception ex)
{
throw new ApplicationException($"Error while trying to transform using MapType specification: {_mapName}\nMap Assembly {map.AssemblyQualifiedName} used\nError {ex.Message}", ex);
}
}
/// <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);
}
}
