public IEnumerable <Offer> Search(String search)
{
var cachedDocuments = _distributedCache.Get(search);
if (cachedDocuments == null)
{
var documents = _elasticRepository.SearchOffer(search);
var bf = new BinaryFormatter();
using (var ms = new MemoryStream())
{
bf.Serialize(ms, documents);
_distributedCache.Set(search, ms.ToArray(), new DistributedCacheEntryOptions {
AbsoluteExpirationRelativeToNow = new TimeSpan(0, 2, 0)
});
}
return(documents);
}
using (var memStream = new MemoryStream())
{
var binForm = new BinaryFormatter();
memStream.Write(cachedDocuments, 0, cachedDocuments.Length);
memStream.Seek(0, SeekOrigin.Begin);
var obj = (IEnumerable <Offer>)binForm.Deserialize(memStream);
return(obj);
}
}
private void RecalculateNeuralNetwork(string query)
{
if (itemsClickedInSearch == null || !itemsClickedInSearch.ContainsKey(query))
{
return;
}
var offers = _elasticRepository.SearchOffer(query);
var neuralItems = GetLeadData(offers, query);
if (neuralItems == null)
{
return;
}
var neuralTrainingData = GetNeuralTrainingData(neuralItems);
if (neuralTrainingData == null || neuralTrainingData.xs.Count() == 0)
{
return;
}
// TODO recalculate model and save on the training static dictionary
string model = _javascriptExecutor.Fit(query, neuralTrainingData);
if (trainedModels.ContainsKey(query))
{
trainedModels.Remove(query);
}
trainedModels.Add(query, model);
}
