public async Task <ResponseModel> Read(string collectionName, HttpRequest request)
{
var timer = Stopwatch.StartNew();
var vec1FileName = Path.Combine(_sessionFactory.Dir, string.Format("{0}.vec1", collectionName.ToHash()));
if (File.Exists(vec1FileName))
{
using (var readSession = _sessionFactory.CreateReadSession(collectionName, collectionName.ToHash()))
using (var bowReadSession = _sessionFactory.CreateBOWReadSession(collectionName, collectionName.ToHash()))
{
int skip = 0;
int take = 10;
if (request.Query.ContainsKey("take"))
{
take = int.Parse(request.Query["take"]);
}
if (request.Query.ContainsKey("skip"))
{
skip = int.Parse(request.Query["skip"]);
}
var query = _httpBowQueryParser.Parse(collectionName, request, readSession, _sessionFactory);
var result = bowReadSession.Read(query, readSession, skip, take);
var docs = result.Docs;
this.Log(string.Format("executed query {0} and read {1} docs from disk in {2}", query, docs.Count, timer.Elapsed));
var stream = new MemoryStream();
Serialize(docs, stream);
return(new ResponseModel {
MediaType = "application/json", Stream = stream, Documents = docs, Total = result.Total
});
}
}
else
{
using (var session = _sessionFactory.CreateReadSession(collectionName, collectionName.ToHash()))
{
IList <IDictionary> docs;
long total;
var stream = new MemoryStream();
if (request.Query.ContainsKey("id"))
{
var ids = request.Query["id"].Select(s => long.Parse(s));
docs = session.ReadDocs(ids);
total = docs.Count;
this.Log(string.Format("executed lookup by id in {0}", timer.Elapsed));
}
else
{
var query = _httpQueryParser.Parse(collectionName, request);
if (query == null)
{
return(new ResponseModel {
MediaType = "application/json", Total = 0
});
}
var result = session.Read(query);
docs = result.Docs;
total = result.Total;
this.Log(string.Format("executed query {0} in {1}", query, timer.Elapsed));
if (request.Query.ContainsKey("create"))
{
var newCollectionName = request.Query["newCollection"].ToString();
if (string.IsNullOrWhiteSpace(newCollectionName))
{
newCollectionName = Guid.NewGuid().ToString();
}
await _storeWriter.ExecuteWrite(newCollectionName, docs);
}
}
Serialize(docs, stream);
return(new ResponseModel {
MediaType = "application/json", Stream = stream, Documents = docs, Total = total
});
}
}
}
