private string TransformRecord(string stext, string sXSLT)
{
//use Saxon; which will be installed with MarcEdit; to allow xslt 1, 2, and 3
System.IO.StringReader sreader = new System.IO.StringReader(stext);
System.Xml.XmlReader xreader = System.Xml.XmlReader.Create(sreader);
Saxon.Api.Processor processor = new Saxon.Api.Processor();
Saxon.Api.XsltCompiler xsltCompiler = processor.NewXsltCompiler();
Saxon.Api.XdmNode input = processor.NewDocumentBuilder().Build(xreader);
// Create a transformer for the stylesheet.
Saxon.Api.XsltTransformer transformer = null;
if (System.IO.File.Exists(sXSLT))
{
System.IO.FileStream xstream = new System.IO.FileStream(sXSLT, System.IO.FileMode.Open);
xsltCompiler.BaseUri = new Uri(System.IO.Path.GetDirectoryName(sXSLT) + System.IO.Path.DirectorySeparatorChar.ToString(), UriKind.Absolute);
transformer = xsltCompiler.Compile(xstream).Load();
}
else
{
lbStatus.Text = "ERROR applying the cutom rules file";
return("");
}
// Set the root node of the source document to be the initial context node
transformer.InitialContextNode = input;
// Create a serializer
Saxon.Api.Serializer serializer = new Saxon.Api.Serializer();
System.IO.TextWriter stringWriter = new System.IO.StringWriter();
serializer.SetOutputWriter(stringWriter);
transformer.Run(serializer);
string tmp = stringWriter.ToString();
//System.Windows.Forms.MessageBox.Show(tmp);
//****Remove these lines because all the white space was being removed on translation***
//System.Text.RegularExpressions.Regex objRegEx = new System.Text.RegularExpressions.Regex(@"\n +=LDR ", System.Text.RegularExpressions.RegexOptions.None);
//tmp = objRegEx.Replace(tmp, "\n" + @"=LDR ");
return(tmp);
}
public IEnumerable <IDocument> Execute(IReadOnlyList <IDocument> inputs, IExecutionContext context)
{
return(inputs.AsParallel().Select(context, input =>
{
try
{
Saxon.Api.Processor processor = new Saxon.Api.Processor();
Saxon.Api.XsltCompiler xslt = processor.NewXsltCompiler();
Saxon.Api.XsltTransformer transformer;
if (_xsltPath != null)
{
FilePath path = _xsltPath.Invoke <FilePath>(input, context);
if (path != null)
{
IFile file = context.FileSystem.GetInputFile(path);
if (file.Exists)
{
using (Stream fileStream = file.OpenRead())
{
transformer = LoadXsltDataInTransformer(xslt, fileStream);
}
}
else
{
throw new FileNotFoundException("Couldn't find XSLT file", file.ToString());
}
}
else
{
throw new InvalidOperationException("Provided file path was not valid");
}
}
else if (_xsltGeneration != null)
{
IDocument xsltDocument = context.Execute(_xsltGeneration, new[] { input }).Single();
using (Stream stream = xsltDocument.GetStream())
{
transformer = LoadXsltDataInTransformer(xslt, stream);
}
}
else
{
//Should never happen, because of null check in Constructor.
throw new InvalidOperationException();
}
using (Stream stream = input.GetStream())
{
XmlReader xml = XmlReader.Create(stream);
Saxon.Api.DocumentBuilder documentBuilder = processor.NewDocumentBuilder();
documentBuilder.BaseUri = xslt.BaseUri;
Saxon.Api.XdmNode xdmNode = documentBuilder.Build(xml);
transformer.InitialContextNode = xdmNode;
using (System.IO.StringWriter writer = new StringWriter())
{
Saxon.Api.Serializer serializer = new Saxon.Api.Serializer();
serializer.SetOutputWriter(writer);
transformer.Run(serializer);
return context.GetDocument(input, writer.ToString());
}
}
}
catch (Exception e)
{
Trace.Error($"An {e.GetType().Name} occurred: {e.Message}");
return null;
}
}).Where(x => x != null));
}
