Я реализовал конструктор файлов CSV, который принимает документ XML, применяет к нему преобразование XSL и добавляет его в файл.
public class CsvBatchPrinter : BaseBatchPrinter
{
public CsvBatchPrinter() : base(".csv")
{
RemoveDiatrics = false;
}
protected override void PrintDocuments(System.Collections.Generic.List<XmlDocument> documents, string xsltFileName, string directory, string tempImageDirectory)
{
base.PrintDocuments(documents, xsltFileName, directory, tempImageDirectory);
foreach (var file in new DirectoryInfo(tempImageDirectory).GetFiles())
{
var destination = directory + file.Name;
if (!File.Exists(destination))
file.CopyTo(destination);
}
}
protected override void PrintDocument(XmlDocument document, string xsltFileName, string directory, string tempImageDirectory)
{
StringUtils.EscapeQuotesInXmlNode(document);
if (RemoveDiatrics)
{
var docXml = StringUtils.RemoveDiatrics(document.OuterXml);
document = new XmlDocument();
document.LoadXml(docXml);
}
using (var writer = new StreamWriter(string.Format("{0}{1}{2}", directory, "batch", FileExtension), true, Encoding.ASCII))
{
Transform(document, xsltFileName, writer);
}
}
public bool RemoveDiatrics { get; set; }
}
У меня есть большое количество XML-документов, которые нужно добавить в этот CSV-файл, и после нескольких обращений к нему иногда возникает IOException
Это может быть проблемой блокировки?
Может ли это быть решено:
lock(this)
{
using (var writer = new StreamWriter(string.Format("{0}{1}{2}", directory, "batch", FileExtension), true, Encoding.ASCII))
{
Transform(document, xsltFileName, writer);
}
}
EDIT:
Вот мой след стека:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at System.IO.StreamWriter.CreateFile(String path, Boolean append)
at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize)
at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding)
at Receipts.Facade.Utilities.BatchPrinters.CsvBatchPrinter.PrintDocument(XmlDocument document, String xsltFileName, String directory, String tempImageDirectory) in CsvBatchPrinter.cs:line 37
at Receipts.Facade.Utilities.BatchPrinters.BaseBatchPrinter.PrintDocuments(List`1 documents, String xsltFileName, String directory, String tempImageDirectory) in BaseBatchPrinter.cs:line 30
at Receipts.Facade.Utilities.BatchPrinters.CsvBatchPrinter.PrintDocuments(List`1 documents, String xsltFileName, String directory, String tempImageDirectory) in CsvBatchPrinter.cs:line 17
at Receipts.Facade.Utilities.BatchPrinters.BaseBatchPrinter.Print(List`1 documents, String xsltFileName, String destinationDirectory, String tempImageDirectory) in BaseBatchPrinter.cs:line 23
at Receipts.Facade.Modules.FinanceDocuments.FinanceDocumentActuator`2.printXmlFiles(List`1 xmlDocuments, String tempImagesDirectory) in FinanceDocumentActuator.cs:line 137
и мой базовый класс:
public abstract class BaseBatchPrinter : IBatchPrinter
{
private static readonly ILog Log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
protected readonly string FileExtension;
protected BaseBatchPrinter(string fileExtension)
{
FileExtension = fileExtension;
}
public void Print(List<XmlDocument> documents, string xsltFileName, string destinationDirectory, string tempImageDirectory)
{
Log.InfoFormat("Printing to directory: {0}", destinationDirectory);
PrintDocuments(documents, xsltFileName, destinationDirectory, tempImageDirectory);
}
protected virtual void PrintDocuments(List<XmlDocument> documents, string xsltFileName, string directory, string tempImageDirectory)
{
foreach (var document in documents)
{
PrintDocument(document, xsltFileName, directory, tempImageDirectory);
}
}
/// <summary>
/// Needs to Call Transform(XmlDocument document, string xsltFileName, string directory)
/// </summary>
protected abstract void PrintDocument(XmlDocument document, string xsltFileName, string directory, string tempImageDirectory);
protected void Transform(XmlDocument document, string xsltFileName, StreamWriter writer)
{
//TODO: look into XslCompiledTransform to replace the XslTransform
var xslTransform = new XslTransform();
xslTransform.Load(xsltFileName);
xslTransform.Transform(createNavigator(document), null, writer);
}
protected string CreateFileName(string directory, XmlDocument doc)
{
var conId = createNavigator(doc).SelectSingleNode(Config.SELECT_CONSTITUENT_ID_XPATH).Value;
return string.Format(@"{0}{1}{2}", directory, conId, FileExtension.IndexOf('.') > -1 ? FileExtension : "." + FileExtension);
}
protected XPathNavigator createNavigator(XmlDocument document)
{
return document.DocumentElement == null ? document.CreateNavigator() : document.DocumentElement.CreateNavigator();
}
}
Приветствие.