public HbsRenderer(IServiceProvider services, IHandlebars handlebars, IOptions <HandlebarsViewEngineOptions> options, IExpressionCache expressionCache)
{
_options = options.Value;
_services = services.CreateScope().ServiceProvider;
_expressionCache = expressionCache;
_handlebars = handlebars;
var helpersAction = _options.RegisterHelpers;
if (helpersAction != null)
{
var helpers = new HelperList();
helpersAction.Invoke(helpers);
foreach (var helper in helpers)
{
var h = _services.GetService(helper).Cast <HandlebarsBaseHelper>();
switch (h.HelperType)
{
case HelperType.HandlebarsHelper:
_handlebars.RegisterHelper(h.HelperName, h.HandlebarsHelper);
break;
case HelperType.HandlebarsBlockHelper:
_handlebars.RegisterHelper(h.HelperName, h.HandlebarsBlockHelper);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
}
public static IMvcBuilder AddHandlebarsViewEngine(this IMvcBuilder builder,
Action <HandlebarsViewEngineOptions> optionsAction = null)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
builder.Services.AddOptions()
.AddTransient <IConfigureOptions <HandlebarsViewEngineOptions>, HandlebarsViewEngineOptionsSetup>();
if (optionsAction != null)
{
builder.Services.Configure(optionsAction);
}
var options = builder.Services.BuildServiceProvider().GetService <IOptions <HandlebarsViewEngineOptions> >()
.Value;
if (options.RegisterHelpers != null)
{
var helpers = new HelperList();
options.RegisterHelpers.Invoke(helpers);
var typeBaseHelper = typeof(HandlebarsBaseHelper);
foreach (var helper in helpers)
{
if (helper.IsSubclassOf(typeBaseHelper))
{
builder.Services.AddScoped(helper);
}
else
{
throw new TypeMismatchException(helper, typeBaseHelper);
}
}
}
builder.Services
.AddTransient <IConfigureOptions <MvcViewOptions>, HandlebarsMvcViewOptionsSetup>()
.AddSingleton <IExpressionCache, ExpressionCache>()
.AddSingleton <IHandlebars>(provider => Handlebars.Create(new HandlebarsConfiguration()
{
FileSystem = new DiskFileSystem()
}))
.AddSingleton <IHbsRenderer, HbsRenderer>()
.AddSingleton <IHandlebarsViewEngine, HandlebarsViewEngine>();
return(builder);
}
public double[] MedianSlidingWindow(int[] nums, int k)
{
int n = nums.Length;
double[] ret = new double[n - k + 1];
HelperList left = new HelperList(), right = new HelperList();
for (int i = 0; i <= n; ++i)
{
if (i >= k)
{
double mid;
if (left.Count == right.Count)
{
mid = ((long)left.GetMax() + (long)right.GetMin()) / 2.0;
}
else
{
mid = left.GetMax();
}
int remove = nums[i - k];
if (mid >= (double)remove)
{
left.Remove(remove);
}
else
{
right.Remove(remove);
}
ret[i - k] = mid;
}
if (i < n)
{
int num = nums[i];
if (left.Count > 0 && left.GetMax() >= num)
{
left.Add(num);
}
else
{
right.Add(num);
}
while (left.Count < right.Count)
{
int move = right.GetMin();
right.Remove(move);
left.Add(move);
}
while (left.Count > right.Count + 1)
{
int move = left.GetMax();
left.Remove(move);
right.Add(move);
}
}
}
return(ret);
}
