class Mmtrix::MetricSpec
this struct uniquely defines a metric, optionally inside the call scope of another metric
Constants
- EMPTY_SCOPE
- LENGTH_RANGE
- MAX_LENGTH
the maximum length of a metric name or metric scope
Attributes
name[R]
scope[R]
Public Class Methods
new(metric_name='', metric_scope=nil)
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 15 def initialize(metric_name='', metric_scope=nil) if metric_name.to_s.length > MAX_LENGTH @name = metric_name.to_s[LENGTH_RANGE] else @name = metric_name.to_s end if metric_scope if metric_scope.to_s.length > MAX_LENGTH @scope = metric_scope.to_s[LENGTH_RANGE] else @scope = metric_scope.to_s end else @scope = EMPTY_SCOPE end end
Public Instance Methods
<=>(o)
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 76 def <=>(o) namecmp = self.name <=> o.name return namecmp if namecmp != 0 return (self.scope || '') <=> (o.scope || '') end
==(o)
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 33 def ==(o) self.eql?(o) end
eql?(o)
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 37 def eql? o @name == o.name && @scope == o.scope end
hash()
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 41 def hash @name.hash ^ @scope.hash end
inspect()
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 67 def inspect "#<Mmtrix::MetricSpec '#{name}':'#{scope}'>" end
sub(pattern, replacement, apply_to_scope = true)
click to toggle source
return a new metric spec if the given regex matches the name or scope.
# File lib/mmtrix/metric_spec.rb, line 47 def sub(pattern, replacement, apply_to_scope = true) ::Mmtrix::Agent.logger.warn("The sub method on metric specs is deprecated") rescue nil return nil if name !~ pattern && (!apply_to_scope || scope.nil? || scope !~ pattern) new_name = name.sub(pattern, replacement)[LENGTH_RANGE] if apply_to_scope new_scope = (scope && scope.sub(pattern, replacement)[LENGTH_RANGE]) else new_scope = scope end self.class.new new_name, new_scope end
to_json(*a)
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 71 def to_json(*a) {'name' => name, 'scope' => scope}.to_json(*a) end
to_s()
click to toggle source
# File lib/mmtrix/metric_spec.rb, line 62 def to_s return name if scope.empty? "#{name}:#{scope}" end