public async Task <long> WriteAsync([CanBeNull] IFileReader reader, CancellationToken token)
{
if (reader == null)
{
return(-1);
}
HandleWriteStart();
m_SetMaxProcess?.Invoke(-1);
try
{
var sourceAccess = new SourceAccess(m_FullPath, false, recipient: m_Recipient, keepEnencyrpted: m_KeepUnencrypted);
if (!string.IsNullOrEmpty(m_IdentifierInContainer))
{
sourceAccess.IdentifierInContainer = m_IdentifierInContainer;
}
using (var improvedStream = FunctionalDI.OpenStream(sourceAccess))
await WriteReaderAsync(reader, improvedStream as Stream, token).ConfigureAwait(false);
}
catch (Exception exc)
{
Logger.Error(exc, "Could not write file {filename}", FileSystemUtils.GetShortDisplayFileName(m_FullPath));
throw new FileWriterException($"Could not write file '{FileSystemUtils.GetShortDisplayFileName(m_FullPath)}'\n{exc.SourceExceptionMessage()}",
exc);
}
finally
{
Logger.Debug("Finished writing {filesetting} Records: {records}", m_FileSettingDisplay, Records);
WriteFinished?.Invoke(this, null);
}
return(Records);
}
/// <summary>
/// Resets the position and buffer to the first line, excluding headers, use
/// ResetPositionToStart if you want to go to first data line
/// </summary>
private void ResetPositionToStartOrOpen()
{
if (SelfOpenedStream)
{
m_ImprovedStream?.Dispose();
m_ImprovedStream = FunctionalDI.OpenStream(new SourceAccess(FullPath));
}
else
{
m_ImprovedStream.Seek(0, SeekOrigin.Begin);
}
// in case we can not seek need to reopen the stream reader
m_StreamReader?.Close();
m_StreamReader = new StreamReader(m_ImprovedStream as Stream ?? throw new InvalidOperationException(), Encoding.UTF8, true, 4096, true);
// End Line should be at 1, later on as the line is read the start line s set to this value
StartLineNumber = 1;
EndLineNumber = 1;
RecordNumber = 0;
EndOfFile = m_StreamReader.EndOfStream;
m_JsonTextReader?.Close();
m_JsonTextReader = new JsonTextReader(m_StreamReader)
{
SupportMultipleContent = true
};
}
private async void GuessNewline_Click(object sender, EventArgs e)
{
await buttonNewLine.RunWithHourglassAsync(async() =>
{
using (var improvedStream = FunctionalDI.OpenStream(new SourceAccess(m_ViewSettings)))
cboRecordDelimiter.SelectedValue = (int)await improvedStream.GuessNewline(m_ViewSettings.CodePageId, m_ViewSettings.SkipRows, m_ViewSettings.FileFormat.FieldQualifier, m_CancellationTokenSource.Token);
});
}
private async void ButtonSkipLine_ClickAsync(object sender, EventArgs e)
{
await buttonSkipLine.RunWithHourglassAsync(async() =>
{
using (var improvedStream = FunctionalDI.OpenStream(new SourceAccess(m_ViewSettings)))
m_ViewSettings.SkipRows = await improvedStream.GuessStartRow(m_ViewSettings.CodePageId, m_ViewSettings.FileFormat.FieldDelimiter, m_ViewSettings.FileFormat.FieldQualifier, m_ViewSettings.FileFormat.CommentLine, m_CancellationTokenSource.Token);
});
}
private async void ButtonGuessHeader_Click(object sender, EventArgs e)
{
await buttonGuessHeader.RunWithHourglassAsync(async() =>
{
using (var improvedStream = FunctionalDI.OpenStream(new SourceAccess(m_ViewSettings)))
{
var res = await improvedStream.GuessHasHeader(m_ViewSettings.CodePageId, m_ViewSettings.SkipRows, m_ViewSettings.FileFormat.CommentLine, m_ViewSettings.FileFormat.FieldDelimiter, m_CancellationTokenSource.Token);
m_ViewSettings.HasFieldHeader = res.Item1;
fileSettingBindingSource.ResetBindings(false);
_MessageBox.Show(res.Item2, "Checking headers");
}
});
}
private async void ButtonGuessDelimiter_ClickAsync(object sender, EventArgs e)
{
await buttonGuessDelimiter.RunWithHourglassAsync(async() =>
{
using (var improvedStream = FunctionalDI.OpenStream(new SourceAccess(m_ViewSettings)))
{
await improvedStream.GuessDelimiter(m_ViewSettings.CodePageId, m_ViewSettings.SkipRows, m_ViewSettings.FileFormat.EscapeCharacter, m_CancellationTokenSource.Token);
}
});
// GuessDelimiterAsync does set the values, refresh them
fileFormatBindingSource.ResetBindings(false);
}
private async void ButtonGuessCP_ClickAsync(object sender, EventArgs e)
{
await buttonGuessCP.RunWithHourglassAsync(async() =>
{
using (var improvedStream = FunctionalDI.OpenStream(new SourceAccess(m_ViewSettings)))
{
var(codepage, bom) = await improvedStream.GuessCodePage(m_CancellationTokenSource.Token);
m_ViewSettings.CodePageId = codepage;
m_ViewSettings.ByteOrderMark = bom;
}
});
fileSettingBindingSource.ResetBindings(false);
}
private async void ButtonGuessTextQualifier_Click(object sender, EventArgs e)
{
var qualifier = string.Empty;
await buttonGuessTextQualifier.RunWithHourglassAsync(async() =>
{
using (var improvedStream = FunctionalDI.OpenStream(new SourceAccess(m_ViewSettings)))
qualifier = await improvedStream.GuessQualifier(m_ViewSettings.CodePageId, m_ViewSettings.SkipRows, m_ViewSettings.FileFormat.FieldDelimiter, m_CancellationTokenSource.Token);
});
if (qualifier != null)
{
m_ViewSettings.FileFormat.FieldQualifier = qualifier;
}
else
{
_MessageBox.Show("No Column Qualifier found", "Qualifier", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
