public override void Transform(Engine engine, Package package)
{
this.Package = package;
this.Engine = engine;
XmlSerializer serializer;
Dynamic.Component component;
bool hasOutput = HasPackageValue(package, "Output");
if (hasOutput)
{
GeneralUtils.TimedLog("start retrieving previous Output from package");
String inputValue = package.GetValue("Output");
GeneralUtils.TimedLog("start deserializing");
TextReader tr = new StringReader(inputValue);
GeneralUtils.TimedLog("start creating serializer");
serializer = new XmlSerializerFactory().CreateSerializer(typeof(Dynamic.Component));
GeneralUtils.TimedLog("finished creating serializer");
component = (Dynamic.Component)serializer.Deserialize(tr);
GeneralUtils.TimedLog("finished deserializing from package");
}
else
{
GeneralUtils.ResetLogTimer();
GeneralUtils.TimedLog("Could not find 'Output' in the package");
GeneralUtils.TimedLog("Start creating dynamic component from current component in the package");
GeneralUtils.TimedLog("start creating serializer");
serializer = new XmlSerializerFactory().CreateSerializer(typeof(Dynamic.Component));
GeneralUtils.TimedLog("finished creating serializer");
component = GetDynamicComponent(manager);
GeneralUtils.TimedLog("Finished creating dynamic component with title " + component.Title);
}
try
{
GeneralUtils.TimedLog("starting transformComponent");
TransformComponent(component);
GeneralUtils.TimedLog("finished transformComponent");
}
catch (StopChainException)
{
GeneralUtils.TimedLog("caught stopchainexception, will not write current component back to the package");
return;
}
var sw = new StringWriter();
var ms = new MemoryStream();
XmlWriter writer = new XmlTextWriterFormattedNoDeclaration(ms, Encoding.UTF8);
string outputValue;
//Create our own namespaces for the output
var ns = new XmlSerializerNamespaces();
//Add an empty namespace and empty value
ns.Add("", "");
serializer.Serialize(writer, component, ns);
outputValue = Encoding.UTF8.GetString(ms.ToArray());
// for some reason, the .NET serializer leaves an invalid character at the start of the string
// we will remove everything up to the first < so that the XML can be deserialized later!
Regex re = new Regex("^[^<]+");
outputValue = re.Replace(outputValue, "");
if (hasOutput)
{
Item outputItem = package.GetByName("Output");
package.Remove(outputItem);
outputItem.SetAsString(outputValue);
package.PushItem("Output", outputItem);
}
else
{
package.PushItem(Package.OutputName, package.CreateStringItem(ContentType.Text, outputValue));
}
GeneralUtils.TimedLog("finished Transform");
}
