internal static List <HistoryRecord> GetRecords(ServerInfo server, bool isServer, DateTypes dateType, DateTime startDate)
{
var records = new List <HistoryRecord>();
var key = GetKey(server, isServer);
using (var dateIndexStream = new FileStream(GetFile(false, true), FileMode.OpenOrCreate))
{
using (var dateContentStream = new FileStream(GetFile(false, false), FileMode.OpenOrCreate))
{
var dateFormatter = new CustomBinaryFormatter(dateIndexStream, dateContentStream);
dateFormatter.Register <HistoryDate>(1);
var endDate = DateTime.Now.Date;
var samplingSpan = 1;
switch (dateType)
{
case DateTypes.Hour:
endDate = startDate.AddDays(1);
samplingSpan = 1;
break;
case DateTypes.Day:
endDate = startDate.AddDays(1);
samplingSpan = 24;
break;
case DateTypes.Week:
endDate = startDate.AddDays(7);
samplingSpan = 7 * 24;
break;
case DateTypes.Month:
endDate = startDate.AddMonths(1);
samplingSpan = 31 * 24;
break;
case DateTypes.Year:
endDate = startDate.AddYears(1);
samplingSpan = 365 * 24;
break;
default:
break;
}
var count = dateFormatter.Count;
Debug.WriteLine("all date count:" + count);
Debug.WriteLine("start date:" + startDate);
var dates = new List <HistoryDate>();
for (long i = 0; i < count; i++)
{
var date = dateFormatter.Deserialize <HistoryDate>(false);
var dateTime = DateTime.Parse(date.Date);
Debug.WriteLine("current date:" + dateTime);
if (startDate.Date <= dateTime && dateTime <= endDate)
{
dates.Add(date);
}
}
Debug.WriteLine("valid date count:" + dates.Count);
if (dates.Count > 0)
{
var start = dates.Aggregate((d1, d2) => DateTime.Parse(d1.Date) < DateTime.Parse(d2.Date) ? d1 : d2);
var end = dates.Aggregate((d1, d2) => DateTime.Parse(d1.Date) > DateTime.Parse(d2.Date) ? d1 : d2);
using (var dataIndexStream = new FileStream(GetFile(true, true), FileMode.OpenOrCreate))
{
using (var dataContentStream = new FileStream(GetFile(true, false), FileMode.OpenOrCreate))
{
var historyFormatter = new CustomBinaryFormatter(dataIndexStream, dataContentStream);
historyFormatter.Register <HistoryRecord>(1);
for (var i = start.Index; i < end.Index; i += samplingSpan)
{
historyFormatter.MoveTo(i);
var record = historyFormatter.Deserialize <HistoryRecord>(false);
if (record.Key == key)
{
records.Add(record);
}
}
historyFormatter.Close();
dataContentStream.Close();
}
dataIndexStream.Close();
}
}
dateFormatter.Close();
dateContentStream.Close();
}
dateIndexStream.Close();
}
return(records);
}
internal static void AddRecords(List <HistoryRecord> records)
{
lock (SyncRoot)
{
using (var dataIndexStream = new FileStream(GetFile(true, true), FileMode.OpenOrCreate))
{
using (var dataContentStream = new FileStream(GetFile(true, false), FileMode.OpenOrCreate))
{
var historyFormatter = new CustomBinaryFormatter(dataIndexStream, dataContentStream);
historyFormatter.Register <HistoryRecord>(1);
historyFormatter.MoveToEnd();
var historyCount = historyFormatter.Count;
records.ForEach(r =>
{
historyFormatter.Serialize <HistoryRecord>(r);
});
historyFormatter.Flush();
using (var dateIndexStream = new FileStream(GetFile(false, true), FileMode.OpenOrCreate))
{
using (var dateContentStream = new FileStream(GetFile(false, false), FileMode.OpenOrCreate))
{
var dateFormatter = new CustomBinaryFormatter(dateIndexStream, dateContentStream);
dateFormatter.Register <HistoryDate>(1);
var dateCount = dateFormatter.Count;
var today = DateTime.Now.Date.AddDays(1);
var yesterday = DateTime.Now.Date;
long todayIndex = -1;
var foundYesterday = false;
for (long i = 0; i < dateCount; i++)
{
var date = dateFormatter.Deserialize <HistoryDate>(false);
if (DateTime.Parse(date.Date) == today)
{
todayIndex = i;
}
if (DateTime.Parse(date.Date) == yesterday)
{
foundYesterday = true;
}
}
if (!foundYesterday)
{
dateFormatter.MoveToEnd();
dateFormatter.Serialize <HistoryDate>(new HistoryDate {
Date = yesterday.ToString(), Index = historyCount
});
}
if (todayIndex != -1)
{
dateFormatter.MoveTo(todayIndex);
dateFormatter.Serialize <HistoryDate>(new HistoryDate {
Date = today.ToString(), Index = historyFormatter.Count
}, true);
}
else
{
dateFormatter.MoveToEnd();
dateFormatter.Serialize <HistoryDate>(new HistoryDate {
Date = today.ToString(), Index = historyFormatter.Count
});
}
dateFormatter.Flush();
}
}
}
}
}
}