public bool Check(string fileName)
{
using (var fileStream = FileWithBuffer.OpenRead(fileName, _fileBuffer))
{
FileLine previousLine = FileLine.None;
bool firstLineReaden = false;
foreach (var fileLine in new FileLineReader(fileStream, _streamBuffer))
{
if (!_onlyCheckFormat && firstLineReaden)
{
if (previousLine.CompareTo(fileLine) > 0)
{
_logger.Warn($"File '{fileName}' is not properly sorted.");
_logger.Warn($"Line '{fileLine}' should be before line '{previousLine}'.");
return(false);
}
}
previousLine = fileLine;
firstLineReaden = true;
}
return(true);
}
}
public void Generate(string fileName, long fileSize)
{
using (var fileStream = FileWithBuffer.OpenWrite(fileName, _fileBuffer))
{
if (_duplicates > 0)
{
WriteRandomStringsWithDuplicates(
fileStream,
fileSize);
}
else
{
WriteRandomStringsWithoutDuplicates(
fileStream,
fileSize);
}
}
}
public void Sort(string inputFileName, string outputFileName)
{
using (var fileStream = FileWithBuffer.OpenRead(inputFileName, _fileBuffer))
using (var targetChunkStorage = CreateTargetFileStorage(outputFileName))
using (var tempChunkStackFactory = new TempChunkStackFactory(outputFileName, _fileBuffer, _streamBuffer, _memoryBuffer))
{
var fileSize = fileStream.Length;
var chunkStack = new ChunkStack <FileLine>(
_memoryBuffer,
new FileLineSizeCalculator(),
targetChunkStorage);
var sortMethod = _sortMethodFactory.CreateSortMethod(chunkStack, tempChunkStackFactory);
var inputFileLines = new FileLineReader(fileStream, _streamBuffer);
var sortedCollection = sortMethod.Sort(inputFileLines);
if (sortedCollection is IChunkReference <FileLine> chunkReference)
{
chunkReference.Flush(targetChunkStorage);
}
}
}
