public GrouperIOs(
IInputReaderFactory inputReaderFactory,
IGroupsLinesOutputFactory groupsLinesOutputFactory,
IIoService ioService,
IConfig config)
{
_implementation = new Lazy <IReadOnlyList <IGrouperIO> >(() =>
{
var inputFileLength = ioService.SizeOfFile(config.InputFilePath);
if (config.GrouperEnginesCount == 1)
{
return new[]
{
new IO(inputReaderFactory.Create(inputFileLength),
groupsLinesOutputFactory.Create())
}
}
;
var implementation = new List <IGrouperIO>();
var blockLength = inputFileLength / config.GrouperEnginesCount;
long offset = 0;
using (var inputStream = ioService.OpenRead(config.InputFilePath))
for (int i = 0; i < config.GrouperEnginesCount; i++)
{
inputStream.Position = Math.Min(
offset + blockLength,
inputFileLength - 1);
while (inputStream.ReadByte() != Consts.EndLineByte2)
{
;
}
var readingLength = inputStream.Position - offset;
implementation.Add(new IO(
inputReaderFactory.Create(offset, readingLength),
groupsLinesOutputFactory.Create(offset)));
if (inputStream.Position == inputFileLength)
{
break;
}
offset = inputStream.Position;
}
return(implementation);
});
}
public DrawerFactory(IInputReaderFactory inputReaderFactory)
{
this.inputReaderFactory = inputReaderFactory;
}
