public void Write(IEnumerable <DataCheckItem> dataCheckItems, XDocument originalDataChecksDocument,
Stream destinationStream, IDataCheckerContext dataCheckerContext)
{
//keeping "other" data in the "original" document
if (originalDataChecksDocument == null)
{
throw new ArgumentNullException(nameof(originalDataChecksDocument));
}
if (destinationStream == null)
{
throw new ArgumentNullException(nameof(destinationStream));
}
if (dataCheckerContext == null)
{
throw new ArgumentNullException(nameof(dataCheckerContext));
}
Contract.EndContractBlock();
try
{
var dataChecksDocument = new XDocument(originalDataChecksDocument);
var dataChecksElement = dataChecksDocument.Descendants("DataChecks").FirstOrDefault()
?? new XElement("DataChecks");
RemoveDataCheckItems(dataChecksElement);
ReplaceDataCheckItems(dataCheckItems, dataChecksElement);
dataChecksDocument.Save(destinationStream);
dataCheckerContext.LogMessage("Änderungen wurden erfolgreich gespeichert.", TraceLevel.Info);
}
catch (Exception exception)
{
dataCheckerContext.LogMessage($"Datei konnte nicht gespeichert werden: [{exception.Message}]", TraceLevel.Error);
}
}
public DataCheckReadResult Read(Stream dataChecksXmlStream, IDataCheckerContext dataCheckerContext)
{
if (dataChecksXmlStream == null)
{
throw new ArgumentNullException(nameof(dataChecksXmlStream));
}
if (dataCheckerContext == null)
{
throw new ArgumentNullException(nameof(dataCheckerContext));
}
Contract.EndContractBlock();
return(TryRead
(
() =>
{
var dataChecksDocument = XDocument.Load(dataChecksXmlStream);
var dataCheckItems =
from dataCheckElement
in dataChecksDocument.Descendants("DataCheck")
select new DataCheckItem(dataCheckElement);
return new DataCheckReadResult(dataChecksDocument, dataCheckItems);
}, dataCheckerContext
));
}
public DataCheckReadResult Read(string fullFileName, IDataCheckerContext dataCheckerContext)
{
return(TryRead(() =>
{
using (var fileStream = new FileStream(fullFileName, FileMode.Open))
{
return Read(fileStream, dataCheckerContext);
}
}, dataCheckerContext));
}
private DataCheckReadResult TryRead(Func <DataCheckReadResult> toExecuteAction, IDataCheckerContext dataCheckerContext)
{
try
{
return(toExecuteAction());
}
catch (Exception exception)
{
var errorMessage = $"Datei kann nicht gelesen werden: [{exception.Message}]";
dataCheckerContext.LogMessage(errorMessage, TraceLevel.Error);
return(new DataCheckReadResult(errorMessage));
}
}
