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Fog::Metering::OpenStack::Real

Attributes

current_tenant[R]
current_user[R]

Public Class Methods

new(options={}) click to toggle source
# File lib/fog/openstack/metering.rb, line 92
def initialize(options={})
  require 'multi_json'

  @openstack_auth_token = options[:openstack_auth_token]

  unless @openstack_auth_token
    missing_credentials = Array.new
    @openstack_api_key  = options[:openstack_api_key]
    @openstack_username = options[:openstack_username]

    missing_credentials << :openstack_api_key  unless @openstack_api_key
    missing_credentials << :openstack_username unless @openstack_username
    raise ArgumentError, "Missing required arguments: #{missing_credentials.join(', ')}" unless missing_credentials.empty?
  end

  @openstack_tenant               = options[:openstack_tenant]
  @openstack_auth_uri             = URI.parse(options[:openstack_auth_url])
  @openstack_management_url       = options[:openstack_management_url]
  @openstack_must_reauthenticate  = false
  @openstack_service_type         = options[:openstack_service_type] || ['metering']
  @openstack_service_name         = options[:openstack_service_name]

  @openstack_endpoint_type        = options[:openstack_endpoint_type] || 'adminURL'
  @connection_options = options[:connection_options] || {}

  @current_user = options[:current_user]
  @current_tenant = options[:current_tenant]

  authenticate

  @persistent = options[:persistent] || false
  @connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}", @persistent, @connection_options)
end

Public Instance Methods

credentials() click to toggle source
# File lib/fog/openstack/metering.rb, line 126
def credentials
  { :provider                 => 'openstack',
    :openstack_auth_url       => @openstack_auth_uri.to_s,
    :openstack_auth_token     => @auth_token,
    :openstack_management_url => @openstack_management_url,
    :current_user             => @current_user,
    :current_tenant           => @current_tenant }
end
get_resource(resource_id) click to toggle source
# File lib/fog/openstack/requests/metering/get_resource.rb, line 6
def get_resource(resource_id)
  request(
    :expects  => 200,
    :method   => 'GET',
    :path     => "resources/#{resource_id}"
  )
end
get_samples(meter_id, options=[]) click to toggle source
# File lib/fog/openstack/requests/metering/get_samples.rb, line 6
def get_samples(meter_id, options=[])

  data = {
    'q' => Array.new
  }

  options.each do |opt|
    filter = {}

    ['field', 'op', 'value'].each do |key|
      filter[key] = opt[key] if opt[key]
    end

    data['q'] << filter unless filter.empty?
  end

  request(
    :body     => Fog::JSON.encode(data),
    :expects  => 200,
    :method   => 'GET',
    :path     => "meters/#{meter_id}"
  )
end
get_statistics(meter_id, options={}) click to toggle source
# File lib/fog/openstack/requests/metering/get_statistics.rb, line 6
def get_statistics(meter_id, options={})

  data = {
    'period' => options['period'],
    'q'      => Array.new
  }

  options['q'].each do |opt|
    filter = {}

    ['field', 'op', 'value'].each do |key|
      filter[key] = opt[key] if opt[key]
    end

    data['q'] << filter unless filter.empty?
  end if options['q'].is_a? Array

  request(
    :body     => Fog::JSON.encode(data),
    :expects  => 200,
    :method   => 'GET',
    :path     => "meters/#{meter_id}/statistics"
  )
end
list_meters(options=[]) click to toggle source
# File lib/fog/openstack/requests/metering/list_meters.rb, line 6
def list_meters(options=[])

  data = {
    'q' => Array.new
  }

  options.each do |opt|
    filter = {}

    ['field', 'op', 'value'].each do |key|
      filter[key] = opt[key] if opt[key]
    end

    data['q'] << filter unless filter.empty?
  end

  request(
    :body     => Fog::JSON.encode(data),
    :expects  => 200,
    :method   => 'GET',
    :path     => 'meters'
  )
end
list_resources(options = {}) click to toggle source
# File lib/fog/openstack/requests/metering/list_resources.rb, line 6
def list_resources(options = {})
  request(
    :expects  => 200,
    :method   => 'GET',
    :path     => 'resources'
  )
end
reload() click to toggle source
# File lib/fog/openstack/metering.rb, line 135
def reload
  @connection.reset
end
request(params) click to toggle source
# File lib/fog/openstack/metering.rb, line 139
def request(params)
  begin
    response = @connection.request(params.merge({
      :headers  => {
        'Content-Type' => 'application/json',
        'Accept' => 'application/json',
        'X-Auth-Token' => @auth_token
      }.merge!(params[:headers] || {}),
      :host     => @host,
      :path     => "#{@path}/v2/#{params[:path]}"#,
      # Causes errors for some requests like tenants?limit=1
      # :query    => ('ignore_awful_caching' << Time.now.to_i.to_s)
    }))
  rescue Excon::Errors::Unauthorized => error
    if error.response.body != 'Bad username or password' # token expiration
      @openstack_must_reauthenticate = true
      authenticate
      retry
    else # bad credentials
      raise error
    end
  rescue Excon::Errors::HTTPStatusError => error
    raise case error
    when Excon::Errors::NotFound
      Fog::Compute::OpenStack::NotFound.slurp(error)
    else
      error
    end
  end
  unless response.body.empty?
    response.body = MultiJson.decode(response.body)
  end
  response
end

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