module FFWD::Reporter

$LICENSE Copyright 2013-2014 Spotify AB. All rights reserved.

The contents of this file are licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Public Class Methods

build_meta(instance, k) click to toggle source
# File lib/ffwd/reporter.rb, line 21
def self.build_meta instance, k
  meta = instance.class.reporter_meta || {}

  if instance.respond_to?(:reporter_meta)
    meta = meta.merge(instance.send(:reporter_meta))
  end

  meta = meta.merge(k[:meta])
  meta[:unit] = "#{meta[:unit] || 'n'}/s"
  return meta
end
included(mod) click to toggle source
# File lib/ffwd/reporter.rb, line 64
def self.included mod
  mod.extend ClassMethods
end
map_meta(meta) click to toggle source
# File lib/ffwd/reporter.rb, line 17
def self.map_meta meta
  Hash[meta.map{|k, v| [k.to_s, v]}]
end

Public Instance Methods

increment(n, c=1) click to toggle source
# File lib/ffwd/reporter.rb, line 72
def increment n, c=1
  reporter_data[n] += c
end
report!(diff) { |:key => k, :value => rate, :meta => meta| ... } click to toggle source
# File lib/ffwd/reporter.rb, line 76
def report! diff
  self.class.reporter_keys.each do |key|
    k = key[:key]
    v = reporter_data[k]
    reporter_data[k] = 0

    meta = ((@_reporter_meta ||= {})[k] ||= FFWD::Reporter.build_meta(self, key))
    rate = (v / diff).round(3)

    yield(:key => k, :value => rate, :meta => meta)
  end
end
reporter_data() click to toggle source
# File lib/ffwd/reporter.rb, line 68
def reporter_data
  @_reporter_data ||= Hash[self.class.reporter_keys.map{|k| [k[:key], 0]}]
end