Class: Wrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/rearview/templates/monitor.rb

Instance Method Summary collapse

Instance Method Details

#create_timeseries(ts) ⇒ Object 



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# File 'lib/rearview/templates/monitor.rb', line 129

def create_timeseries(ts)
  ns   = {}
  ts   = ts.to_a.map { |t| TimeSeries.new(t) }
  vars = (0...ts.length).map do |i|
    varname = variable_by_offset(i)
    ns["@#{varname}"] = ts[i]
  end
  ns["@timeseries"] = ts
  ns
end

#secure_eval(namespace) ⇒ Object

Binding needs to be relative to the class, NOT top level



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# File 'lib/rearview/templates/monitor.rb', line 152

def secure_eval(namespace)
  scoped = Scoped.new(%{timeout})
  ts = create_timeseries(namespace.to_hash.delete "@timeseries")
  ns = namespace.to_hash.merge(ts)
  puts scoped.scoped_eval(ns)
end

#variable_by_offset(index) ⇒ Object

Return a variable name (e.g. a,b,c) from an ordinal



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# File 'lib/rearview/templates/monitor.rb', line 143

def variable_by_offset(index)
  offset = 'a'.ord
  dv  = index.divmod(26)
  ext = dv[0] > 0 ? dv[1].to_s : ""
  (offset + dv[1]).chr + ext
end