module Common

LICENCE:

PTC http://www.ptc.com/
Copyright 2017 PTC Inc.

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

new() click to toggle source

Calls superclass method

# File lib/sensu-plugins-dcos/common.rb, line 20
def initialize
  super()
end

Public Instance Methods

get_data(url) click to toggle source

# File lib/sensu-plugins-dcos/common.rb, line 24
def get_data(url)
  url = URI.parse(url)
  response = Net::HTTP.get_response(url)
  if response.code == '204'
    return {}
  end
  JSON.parse(response.body)
rescue Errno::ECONNREFUSED
  warning 'Connection refused'
rescue JSON::ParserError
  critical 'Invalid JSON'
end

get_value(url, metric, filter, name_field = 'name', value_field = 'value', root_field = 'datapoints') click to toggle source

# File lib/sensu-plugins-dcos/common.rb, line 37
def get_value(url, metric, filter, name_field = 'name', value_field = 'value', root_field = 'datapoints') # rubocop:disable Metrics/ParameterLists
  resource = get_data(url)
  return {} if resource.nil? || resource.empty?
  if filter
    filter = filter.split(':')
    value = resource[root_field].select { |data| data['tags'] == { filter[0] => filter[1] } }
    value.select { |data| data[name_field] == metric }.first[value_field]
  else
    resource[root_field].select { |data| data[name_field] == metric }.first[value_field]
  end
end