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SignalsCache.cs
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SignalsCache.cs
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using System;
using System.Collections.Concurrent;
using System.Linq;
using BusinessObjects.BusinessObjects;
namespace BusinessLogic;
public class SignalsCache
{
private static SignalsCache instance = null;
private static readonly object padlock = new object();
private ConcurrentDictionary<string, SignalInfo> signals = new ConcurrentDictionary<string, SignalInfo>();
// Private constructor to prevent instantiation from outside
private SignalsCache() { }
// Public static method to get the instance
public static SignalsCache Instance
{
get
{
lock (padlock)
{
if (instance == null)
{
instance = new SignalsCache();
}
return instance;
}
}
}
public void AddSignal(string key, SignalInfo value)
{
signals.TryAdd(key, value);
}
public bool DeleteSignal(string key)
{
return signals.TryRemove(key, out var removedValue);
}
public SignalInfo Get(string key)
{
signals.TryGetValue(key, out var value);
return value;
}
public bool Contains(string key)
{
return signals.ContainsKey(key);
}
public void Clear()
{
signals.Clear();
}
// Method to delete signals by ObjectId
public void DeleteSignalByObjId(int objId)
{
var keysToDelete = signals.Where(pair => pair.Value.ObjectId == objId).Select(pair => pair.Key).ToList();
foreach (var key in keysToDelete)
{
signals.TryRemove(key, out var removedValue);
}
}
public void DeleteSignalBySymbol(string symbol)
{
var keysToDelete = signals.Where(pair => pair.Value.Sym.Equals(symbol, StringComparison.InvariantCultureIgnoreCase)).Select(pair => pair.Key).ToList();
foreach (var key in keysToDelete)
{
signals.TryRemove(key, out var removedValue);
}
}
}