/**
* No se pueden enviar mas de 10 peticiones por minuto
*/
public List <Cierre> getCierres(List <Cierres> data)
{
List <Cierre> cierres = new List <Cierre>();
String b = "https://coinmarketcap.com/currencies/";
int count = 0;
try {
foreach (Cierres c in data)
{
if (count % 10 == 0)
{
Thread.Sleep(1000);
}
String fecha = calculateFecha(c.Fecha);
String url = b + c.Nombre + "/historical-data/?start=" + fecha;
String res = web.getUrl(url);
List <Cierre> cc = extractData(c.Moneda, res);
cierres.AddRange(cc);
count++;
}
}
catch (Exception e) {
LogMgr.err(e.Message);
}
return(cierres);
}
private List <Cierre> extractData(String moneda, String data)
{
int end = 0;
int field = 0;
string valor;
decimal dValor = 0;
List <Cierre> cierres = new List <Cierre>();
Cierre c = null;
try {
int pos = data.IndexOf("<td");
while (pos != -1)
{
pos = data.IndexOf(">", pos);
end = data.IndexOf("<", pos);
valor = data.Substring(pos + 1, end - pos - 1);
if (field % 7 != 0)
{
dValor = makeDecimal(valor);
}
switch (field % 7)
{
case 1: c.open = dValor; break;
case 2: c.high = dValor; break;
case 3: c.low = dValor; break;
case 4: c.close = dValor; break;
case 5: c.volumen = dValor; break;
//case 6: c.marketcap = dValor; break;
case 6: c.marketcap = 0; break;
default:
if (c != null)
{
cierres.Add(c);
}
c = new Cierre();
c.moneda = moneda;
DateTime dt = DateTime.Parse(valor);
c.fecha = (long)(dt - new DateTime(1970, 1, 1)).TotalSeconds;
break;
}
field++;
pos = data.IndexOf("<td", pos);
}
if (c != null)
{
cierres.Add(c);
}
} catch (Exception e) {
LogMgr.err(e.Message);
}
return(cierres);
}
public static IProvider getProvider()
{
String proveedor = CFG.getProvider();
if (proveedor == null)
{
LogMgr.err("No se ha especificado un proveedor de informacion");
Environment.Exit(16);
}
switch (Int32.Parse(proveedor))
{
case 1: return(new CoinMarketCap());
}
return(null);
}
public String getUrl(String url)
{
String data = null;
try {
WebRequest request = WebRequest.Create(url);
WebResponse response = request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
data = reader.ReadToEnd();
reader.Close();
response.Close();
return(data);
} catch (Exception e) {
LogMgr.err(e.Message);
}
return(data);
}
private String calculateFecha(long epoch)
{
if (epoch == 0)
{
return("20000101");
}
DateTime dt = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
dt.AddSeconds(epoch);
dt.AddDays(1);
try {
return(String.Format("{0:D4}{1:D2}{2:D2}", dt.Year, dt.Month, dt.Day));
}
catch (Exception e) {
LogMgr.err(e.Message);
}
return("20000101");
}