private FirstRunResult BuildPagesIndex(byte[] dataBytes)
{
var result = new List <IPsnPageIndexRecord>();
var resultGoodBeforeTimebreak = new List <IPsnPageIndexRecord>();
var resultGoodAfterTimebreak = new List <IPsnPageIndexRecord>();
var resultGoodCurrent = resultGoodBeforeTimebreak;
int msToAdd;
try
{
msToAdd = int.Parse(File.ReadAllText(Path.Combine(Environment.CurrentDirectory, "Ms.txt")));
}
catch
{
msToAdd = 0;
}
IPsnPageIndexRecord prevGoodPageWithTime = null;
var pagesCount = dataBytes.Length / (uint)_extractor.PsnPageSize;
for (int i = 0; i < pagesCount; ++i)
{
int absPosInData = i * _extractor.PsnPageSize;
var header = _extractor.GetHeaderFromRealDevice(dataBytes, absPosInData);
//var pageIndex = new PsnPageIndexRecord(absolutePositionInStream, header.PageInfo, header.CreatedAt, header.PageNumber, i);
var page = new PsnPageIndexRecord(absPosInData, header.PageInfo,
header.CreatedAt + TimeSpan.FromMilliseconds(msToAdd * i), header.PageNumber, i);
result.Add(page);
// Выполнение условия переформирования лога по месту перехода с отрицательной дельтой времени:
if (page.PageInfo == PsnPageInfo.NormalPage)
{
if (page.PageTime.HasValue)
{
if (page.PageTime.Value < prevGoodPageWithTime?.PageTime.Value)
{
resultGoodCurrent = resultGoodAfterTimebreak;
}
prevGoodPageWithTime =
page; // Предыдущая страница ВСЕГДА валидная и имеет валидную временную метку
}
resultGoodCurrent.Add(page);
}
}
resultGoodAfterTimebreak.AddRange(resultGoodBeforeTimebreak);
resultGoodBeforeTimebreak.Clear();
return(new FirstRunResult {
FullIndex = result, TimeSortedGoodPages = resultGoodAfterTimebreak
});
}
public StreamOnlyGoodPsnPagesIndexRecord(IPsnPageIndexRecord psnPageIndexRecord, int goodPagesCountBefore)
{
PsnPageIndexRecord = psnPageIndexRecord;
GoodPagesCountBefore = goodPagesCountBefore;
}
public void GetStatisticAsync(Action <Exception, IEnumerable <string> > callback)
{
_bworker.AddWork(() => {
try {
//var beginTime = _psnDataInformation.BeginTime.HasValue ? _psnDataInformation.BeginTime.Value : (_psnDataInformation.SaveTime.HasValue ? _psnDataInformation.SaveTime.Value : DateTime.Now);
var pagesIndex = _psnDataPaged.GetPagesIndex();
int totalPagesInLog = 0;
int badPagesCount = 0;
int notDatedPagesCount = 0;
int normalPagesCount = 0;
var timeBackPairs = new List <Tuple <IPsnPageIndexRecord, IPsnPageIndexRecord> >();
var numberSkipPairs = new List <Tuple <IPsnPageIndexRecord, IPsnPageIndexRecord> >();
IPsnPageIndexRecord prevRecord = null;
foreach (var pageInfo in pagesIndex)
{
totalPagesInLog++;
switch (pageInfo.PageInfo)
{
case PsnPageInfo.BadPage:
badPagesCount++;
break;
case PsnPageInfo.NormalPage:
normalPagesCount++;
break;
}
if (!pageInfo.PageTime.HasValue)
{
notDatedPagesCount++;
}
if (prevRecord != null)
{
if (prevRecord.PageInfo == PsnPageInfo.NormalPage && pageInfo.PageInfo == PsnPageInfo.NormalPage)
{
if (pageInfo.PageNumber - prevRecord.PageNumber != 1 && !(pageInfo.PageNumber == 0 && prevRecord.PageNumber == 255))
{
numberSkipPairs.Add(new Tuple <IPsnPageIndexRecord, IPsnPageIndexRecord>(prevRecord, pageInfo));
}
if (prevRecord.PageTime.HasValue && pageInfo.PageTime.HasValue)
{
if (pageInfo.PageTime.Value < prevRecord.PageTime.Value)
{
timeBackPairs.Add(new Tuple <IPsnPageIndexRecord, IPsnPageIndexRecord>(prevRecord, pageInfo));
}
}
}
}
prevRecord = pageInfo;
}
var result = new List <string> {
"Страниц в логе: " + totalPagesInLog,
"Страниц, не распознанных как страницы данных ПСН, в логе: " + badPagesCount,
"Страниц с данными ПСН: " + normalPagesCount,
"Страниц без временной метки (из числа страниц с данными): " + notDatedPagesCount
};
var lineTime = "Число обратных временных переходов в логе: " + timeBackPairs.Count + ": ";
foreach (var pair in timeBackPairs)
{
lineTime += " 0x" + pair.Item1.AbsolutePositionInStream.ToString("X") + "-0x" + pair.Item2.AbsolutePositionInStream.ToString("X");
}
result.Add(lineTime);
var lineBack = "Число скачков номера страницы: " + numberSkipPairs.Count + ": ";
foreach (var pair in numberSkipPairs)
{
lineBack += " 0x" + pair.Item1.AbsolutePositionInStream.ToString("X") + "-0x" + pair.Item2.AbsolutePositionInStream.ToString("X");
}
result.Add(lineBack);
var isPagesFlowErrorAccured = timeBackPairs.Count > 1 || (timeBackPairs.Count <= 1 && numberSkipPairs.Count != timeBackPairs.Count);
if (isPagesFlowErrorAccured)
{
if (_logIntegrity != PsnLogIntegrity.PagesFlowError)
{
_logIntegrity = PsnLogIntegrity.PagesFlowError;
_uiNotifier.Notify(() => IsSomethingWrongWithLogChanged.SafeInvoke(this, new System.EventArgs()));
}
}
else
{
if (_logIntegrity != PsnLogIntegrity.Ok)
{
_logIntegrity = PsnLogIntegrity.Ok;
_uiNotifier.Notify(() => IsSomethingWrongWithLogChanged.SafeInvoke(this, new System.EventArgs()));
}
}
_uiNotifier.Notify(() => {
callback?.Invoke(null, result);
});
}
catch (Exception ex) {
_uiNotifier.Notify(() => {
callback?.Invoke(ex, null);
});
}
});
}
public StreamOnlyGoodPsnPagesGoodIndexRecord(int pageIndexInAllPages, IPsnPageIndexRecord psnPageIndexRecord)
{
PageIndexInAllPages = pageIndexInAllPages;
PsnPageIndexRecord = psnPageIndexRecord;
}
