public OriginalGallery(IBrowsableCollection selection, string path, string name) : base(selection, path, name)
{
requests = new ScaleRequest [] { new ScaleRequest("hq", 0, 0, false),
new ScaleRequest("mq", 800, 600, true),
new ScaleRequest("lq", 640, 480, false, true),
new ScaleRequest("thumbs", 120, 120, false) };
}
public OriginalGallery(IBrowsableCollection selection, string path, string name)
: base(selection, path, name)
{
requests = new ScaleRequest [] { new ScaleRequest ("hq", 0, 0, false),
new ScaleRequest ("mq", 800, 600, true),
new ScaleRequest ("lq", 640, 480, false, true),
new ScaleRequest ("thumbs", 120, 120, false) };
}
internal virtual bool NeedScale(ScaleRequest scaleRequest, Offer currentOffer)
{
// TODO: temporary implementation
if (currentOffer.GetThroughput() == scaleRequest.TargetThroughput)
{
return(false);
}
return(true);
}
public void AddRequestCharge(double context)
{
var eventTime = DateTime.Now;
long tooManyRequestsEvent = eventTime.Ticks;
_tooManyRequestsHistory.Add(tooManyRequestsEvent);
_tooManyRequestsHistory = _tooManyRequestsHistory
.Where(record => record >= eventTime.AddSeconds(_monitorDuration).Ticks)
.ToList();
if (_tooManyRequestsHistory.Count >= _tooManyRequestsThreshold)
{
var currentThroughput = Scaler.GetCurrentThroughputAsync().Result;
// TODO make dynamic
var scaleRequest = new ScaleRequest(_databaseId, _collectionId, currentThroughput * _scaleFactor);
var result = Scaler.AdjustThroughputAsync(scaleRequest).Result;
}
}
public async Task <ScaleResponse> AdjustThroughputAsync(ScaleRequest scaleRequest)
{
var currentOffer = await GetCurrentOfferAsync();
if (NeedScale(scaleRequest, currentOffer))
{
Offer replaced = await _client.ReplaceOfferAsync(new OfferV2(currentOffer, scaleRequest.TargetThroughput));
return(new ScaleResponse
{
IsAccepted = true,
AdjustedThroughput = replaced.GetThroughput()
});
}
return(new ScaleResponse()
{
IsAccepted = false,
AdjustedThroughput = currentOffer.GetThroughput()
});
}
public ActionResult <ScaleResponse> PostScale(ScaleRequest scaleRequest)
{
//生成TaskId
string TaskId = Guid.NewGuid().ToString();
//生成TodoItem并保存
ScaleParams scaleParams = this.scaleParams;
List <ScaleValue> scaleValues = this.scaleValues;
scaleParams.TaskId = TaskId;
//主键不能重复
scaleParams.ScaleParamId = _context.ScaleParams.Count() + 1;
int currentCount = _context.ScaleValues.Count();
scaleValues.ForEach(m => {
m.ScaleValueId = currentCount + m.ScaleValueId;
});
//更新关联关系
TodoItem todoItem = new TodoItem {
TokenId = scaleRequest.TokenId, TaskId = TaskId, ScaleName = this.ScaleName, ScaleType = this.ScaleType, ScaleCount = this.ScaleCount, ScaleFrequency = this.ScaleFrequency, ScaleParams = scaleParams, ScaleValues = this.scaleValues, IsComplete = false
};
scaleParams.todoItem = todoItem;
scaleValues.ForEach(m => {
m.TodoItem = todoItem;
});
//保存关联关系
_context.TodoItems.Add(todoItem);
_context.ScaleParams.Add(scaleParams);
scaleValues.ForEach(m => _context.ScaleValues.Add(m));
_context.SaveChanges();
//返回结果
ScaleResponse scaleResponse = new ScaleResponse {
TokenId = scaleRequest.TokenId, TaskId = TaskId, Result = true, Msg = ""
};
return(scaleResponse);
}
public HtmlGallery (IBrowsableCollection selection, string path, string name) : base (selection, path, name)
{
requests = new ScaleRequest [] { new ScaleRequest ("hq", 0, 0, false),
new ScaleRequest ("mq", 480, 320, false),
new ScaleRequest ("thumbs", 120, 90, false) };
}
public HtmlGallery(IBrowsableCollection selection, string path, string name) : base(selection, path, name)
{
requests = new ScaleRequest [] { new ScaleRequest("hq", 0, 0, false),
new ScaleRequest("mq", 480, 320, false),
new ScaleRequest("thumbs", 120, 90, false) };
}
