private void deleteOldest()
{
lock (cacheLock)
{
while (hashtable.Count >= CACHE_SIZE)
{
CasheLine line = (CasheLine)queue.Dequeue();
hashtable.Remove(line.key);
}
}
}
public List <Trip> getDataFromCache(String query)
{
CasheLine result = null;
String key = query;
lock (cacheLock)
{
if (!hashtable.ContainsKey(key))
{
return(null);
}
result = (CasheLine)hashtable[key];
}
return(result.trips);
}
public void insert(string query, List <Trip> tripList)
{
CasheLine line = new CasheLine();
line.key = query;
line.trips = tripList;
lock (cacheLock)
{
if (hashtable.Count >= CACHE_SIZE)
{
deleteOldest();
}
hashtable.Add(query, line);
queue.Enqueue(line);
}
}