protected override void Initialize()
{
try
{
Log("Initialising");
Log("TimeZone Setting: {0}", TimeZone);
Log("TimeZone Name: {0}", TimeZone.DisplayName);
Log("Offset: {0}", TimeZone.BaseUtcOffset);
Log("DST: {0}", TimeZone.SupportsDaylightSavingTime);
var downloader = new DailyFxDownloader(this);
var allNewsItems = downloader.Download(PastNewsLookback);
Log(string.Format("{0} events loaded", allNewsItems.Count));
_symbol = new SymbolWrapper(Symbol.Code);
_newsItems = NewsRepository.FilterNews(allNewsItems, ShowLow, ShowMedium, ShowHigh, SymbolFilter, _symbol);
List <NewsGroup <NewsItem> > groupList = NewsRepository.GroupNews(_newsItems, _symbol);
_groups = groupList.ToDictionary(x => x.Time);
Log("{0} groups created", _groups.Count);
} catch (Exception e)
{
Log(e.Message);
_newsItems = new List <NewsItem>();
}
}
public static List <NewsGroup <T> > GroupNews <T>(List <T> newsList, SymbolWrapper symbol) where T : INewsItem
{
var groups = newsList.GroupBy(x => x.UtcDateTime).Select(x => new NewsGroup <T>
{
Time = x.Key,
BaseCurrencyNews = new CurrencyNews <T>
{
NewsList = x.Where(y => y.Currency == symbol.BaseCurrency).ToList(),
Currency = symbol.BaseCurrency,
Time = x.Key
},
QuoteCurrencyNews = new CurrencyNews <T>
{
NewsList = x.Where(y => y.Currency == symbol.QuoteCurrency).ToList(),
Currency = symbol.QuoteCurrency,
Time = x.Key
}
}).ToList();
return(groups);
}
public static List <T> FilterNews <T>(List <T> newsItems, bool showLow, bool showMedium, bool showHigh, bool symbolFilter, SymbolWrapper symbol) where T : INewsItem
{
//improtance filter
var importanceFilter = new List <Importance>();
if (showLow)
{
importanceFilter.Add(Importance.Low);
}
if (showMedium)
{
importanceFilter.Add(Importance.Medium);
}
if (showHigh)
{
importanceFilter.Add(Importance.High);
}
newsItems = newsItems.Where(x => x.Importance.HasValue && importanceFilter.Contains(x.Importance.Value)).OrderBy(x => x.UtcDateTime).ToList();
if (symbolFilter)
{
//show events only applicable to this currency
var currencyFilter = new[]
{
symbol.BaseCurrency,
symbol.QuoteCurrency
};
newsItems = newsItems.Where(x => currencyFilter.Contains(x.Currency)).ToList();
}
return(newsItems);
}
