public void Delete(KLineType type, string stockCode, IEnumerable<IStockKLine> kLines)
{
ThrowIfTypeNotSupport(type);
if (type == KLineType.Day)
{
string dbFilePath = new Day1KLineFile(stockCode).GetFilePath();
KLineRepository repository = new KLineRepository(dbFilePath);
repository.DeleteRange(kLines);
}
else
{
Year1KLineFile file = null;
if (type == KLineType.Min1)
{
file = new Min1KLineFile(stockCode);
}
else
{
file = new Min5KLineFile(stockCode);
}
var packages = file.SplitToPackages(kLines);
// 插入所有数据
foreach (var package in packages)
{
// 获取数据文件路径
string dbFilePath = file.GetFilePath(package);
KLineRepository repository = new KLineRepository(dbFilePath);
repository.DeleteRange(package.Items);
}
}
}
public IEnumerable<IStockKLine> Get(
KLineType type, string stockCode,
DateTime startTime, DateTime endTime)
{
ThrowIfTypeNotSupport(type);
/*
注意需要考虑到：
1：如果查询的时间跨度很长，记录可能存放于不同的文件中，需要进行查询结果的拼接。
2：同理在获取Context，以及FilePath的时候，也需要考虑时间跨度导致的多文件处理。
*/
List<IStockKLine> result = new List<IStockKLine>();
if (type == KLineType.Day)
{
string dbFilePath = new Day1KLineFile(stockCode).GetFilePath();
KLineRepository repository = new KLineRepository(dbFilePath);
result.AddRange(repository.Get(startTime, endTime));
}
else
{
Year1KLineFile file = null;
if (type == KLineType.Min1)
{
file = new Min1KLineFile(stockCode);
}
else
{
file = new Min5KLineFile(stockCode);
}
var files = file.GetFilePath(startTime, endTime);
// 插入所有数据
foreach (var dbFilePath in files)
{
// 获取数据文件路径
KLineRepository repository = new KLineRepository(dbFilePath);
result.AddRange(repository.Get(startTime, endTime));
}
}
return result;
}
public DateTime? GetLastTradeDate(KLineType type, string stockCode)
{
ThrowIfTypeNotSupport(type);
if (type == KLineType.Day)
{
string dbFilePath = new Day1KLineFile(stockCode).GetFilePath();
KLineRepository repository = new KLineRepository(dbFilePath);
return repository.GetLastTradeDate();
}
else
{
throw new NotSupportedException();
}
}
public bool Exists(KLineType type, string stockCode, IStockKLine kLine)
{
ThrowIfTypeNotSupport(type);
// 获取数据文件路径
string dbFilePath = null;
if(type == KLineType.Day)
{
dbFilePath = new Day1KLineFile(stockCode).GetFilePath();
}
else if(type == KLineType.Min1)
{
dbFilePath = new Min1KLineFile(stockCode).GetFilePath(kLine.Time);
}
else if(type == KLineType.Min5)
{
dbFilePath = new Min5KLineFile(stockCode).GetFilePath(kLine.Time);
}
if (!string.IsNullOrEmpty(dbFilePath))
{
KLineRepository repository = new KLineRepository(dbFilePath);
return repository.Exists(kLine);
}
else
{
return false;
}
}