public RemoveQuotesForm(IQMDataCollection collection)
{
InitializeComponent();
mOrgCollection = collection;
// fills the list view with all the data stored in the cache.
foreach (IQMData data in collection)
{
ListViewItem item = listViewData.Items.Add(data.Instrument);
item.SubItems.Add(data.Timeframe);
item.SubItems.Add(data.Year.ToString());
item.SubItems.Add(data.Size.ToString());
}
}
/// <summary>
/// RemoveQuotes controller event: Cache content description is prepared
/// </summary>
/// <param name="collection"></param>
private void RemoveQuotesController_Prepared(IQMDataCollection collection)
{
// In some cases the event might be received from the other thread
if (this.InvokeRequired)
{
this.BeginInvoke(new RemoveQuotesController_Prepared(RemoveQuotesController_Prepared), collection);
}
else
{
// Show the form to choose the data to remove
RemoveQuotesForm form = new RemoveQuotesForm(collection);
if (form.ShowDialog(this) == DialogResult.OK && form.ToRemove.Count > 0)
{
// and if any data is chosen - remove then
mRemoveController.RemoveData(form.ToRemove);
}
// ...the result will be passed to RemoveQuotesController_Removed event
}
}
/// <summary>
/// Shows quotes that are available in local cache.
/// </summary>
/// <param name="quotesManager">QuotesManager instance</param>
static void ShowLocalQuotes(QuotesManager quotesManager)
{
if (quotesManager == null)
{
Console.WriteLine("Failed to get local quotes");
return;
}
// if the instruments list is not updated, update it now
if (!quotesManager.areInstrumentsUpdated())
{
UpdateInstrumentsListener instrumentsCallback = new UpdateInstrumentsListener();
UpdateInstrumentsTask task = quotesManager.createUpdateInstrumentsTask(instrumentsCallback);
quotesManager.executeTask(task);
instrumentsCallback.WaitEvents();
}
IQMDataCollection collection = PrepareListOfQMData(quotesManager);
ShowPreparedQMDataList(collection);
}
/// <summary>
/// Show list of available quotes.
/// </summary>
/// <param name="collection">Collection of quotes manager storage data</param>
static void ShowPreparedQMDataList(IQMDataCollection collection)
{
IDictionary <string, IDictionary <int, long> > instrumentsInfo = SummariseInstrumentDataSize(collection);
if (instrumentsInfo == null || instrumentsInfo.Count == 0)
{
Console.WriteLine("There are no quotes in the local storage.");
}
else
{
Console.WriteLine("Quotes in the local storage");
foreach (string instrument in instrumentsInfo.Keys)
{
IDictionary <int, long> sizeByYear = instrumentsInfo[instrument];
foreach (int year in sizeByYear.Keys)
{
Console.WriteLine(" {0} {1} {2}", instrument, year, ReadableSize(sizeByYear[year]));
}
}
}
}
/// <summary>
/// Get full size of available instrument's quotes.
/// </summary>
/// <param name="collection">Collection of quotes manager storage data</param>
/// <returns>Collection of info about quotes in starage</returns>
static IDictionary <string, IDictionary <int, long> > SummariseInstrumentDataSize(IQMDataCollection collection)
{
if (collection == null || collection.Count == 0)
{
return(null);
}
IDictionary <string, IDictionary <int, long> > instrumentsInfo = new Dictionary <string, IDictionary <int, long> >();
foreach (IQMData quote in collection)
{
string instrument = quote.Instrument;
if (!instrumentsInfo.ContainsKey(instrument))
{
instrumentsInfo[instrument] = new Dictionary <int, long>();
}
int year = quote.Year;
if (!instrumentsInfo[instrument].ContainsKey(year))
{
instrumentsInfo[instrument][year] = 0;
}
instrumentsInfo[instrument][year] += quote.Size;
}
return(instrumentsInfo);
}
