Class: Metriks::Reporter::LibratoMetrics
- Inherits:
-
Object
- Object
- Metriks::Reporter::LibratoMetrics
- Defined in:
- lib/metriks/reporter/librato_metrics.rb
Instance Attribute Summary collapse
-
#prefix ⇒ Object
Returns the value of attribute prefix.
-
#source ⇒ Object
Returns the value of attribute source.
Instance Method Summary collapse
- #form_data(metrics) ⇒ Object
-
#initialize(email, token, options = {}) ⇒ LibratoMetrics
constructor
A new instance of LibratoMetrics.
- #prepare_metric(base_name, metric, keys, snapshot_keys = []) ⇒ Object
- #restart ⇒ Object
- #start ⇒ Object
- #stop ⇒ Object
- #submit(data) ⇒ Object
- #write ⇒ Object
Constructor Details
#initialize(email, token, options = {}) ⇒ LibratoMetrics
Returns a new instance of LibratoMetrics.
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# File 'lib/metriks/reporter/librato_metrics.rb', line 8 def initialize(email, token, = {}) @email = email @token = token @prefix = [:prefix] @source = [:source] @registry = [:registry] || Metriks::Registry.default @time_tracker = Metriks::TimeTracker.new([:interval] || 60) @on_error = [:on_error] || proc { |ex| } end |
Instance Attribute Details
#prefix ⇒ Object
Returns the value of attribute prefix.
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# File 'lib/metriks/reporter/librato_metrics.rb', line 6 def prefix @prefix end |
#source ⇒ Object
Returns the value of attribute source.
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# File 'lib/metriks/reporter/librato_metrics.rb', line 6 def source @source end |
Instance Method Details
#form_data(metrics) ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 118 def form_data(metrics) data = {} gauges = metrics.select { |m| m[:type] == "gauge" } gauges.each_with_index do |gauge, idx| gauge.each do |key, value| if value data["gauges[#{idx}][#{key}]"] = value.to_s end end end counters = metrics.select { |m| m[:type] == "counter" } counters.each_with_index do |counter, idx| counter.each do |key, value| if value data["counters[#{idx}][#{key}]"] = value.to_s end end end data end |
#prepare_metric(base_name, metric, keys, snapshot_keys = []) ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 144 def prepare_metric(base_name, metric, keys, snapshot_keys = []) results = [] time = @time_tracker.now_floored base_name = base_name.to_s.gsub(/ +/, '_') if @prefix base_name = "#{@prefix}.#{base_name}" end keys.flatten.each do |key| name = key.to_s.gsub(/^get_/, '') value = metric.send(key) results << { :type => name.to_s == "count" ? "counter" : "gauge", :name => "#{base_name}.#{name}", :source => @source, :measure_time => time, :value => value } end unless snapshot_keys.empty? snapshot = metric.snapshot snapshot_keys.flatten.each do |key| name = key.to_s.gsub(/^get_/, '') value = snapshot.send(key) results << { :type => name.to_s == "count" ? "counter" : "gauge", :name => "#{base_name}.#{name}", :source => @source, :measure_time => time, :value => value } end end results end |
#restart ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 41 def restart stop start end |
#start ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 20 def start @thread ||= Thread.new do loop do @time_tracker.sleep Thread.new do begin write rescue Exception => ex @on_error[ex] rescue nil end end end end end |
#stop ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 36 def stop @thread.kill if @thread @thread = nil end |
#submit(data) ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 97 def submit(data) url = URI.parse('https://metrics-api.librato.com/v1/metrics') req = Net::HTTP::Post.new(url.path) req.basic_auth(@email, @token) req.set_form_data(data) http = Net::HTTP.new(url.host, url.port) http.verify_mode = OpenSSL::SSL::VERIFY_PEER http.use_ssl = true store = OpenSSL::X509::Store.new store.set_default_paths http.cert_store = store case res = http.start { |http| http.request(req) } when Net::HTTPSuccess, Net::HTTPRedirection # OK else res.error! end end |
#write ⇒ Object
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# File 'lib/metriks/reporter/librato_metrics.rb', line 46 def write gauges = [] @registry.each do |name, metric| gauges << case metric when Metriks::Meter prepare_metric name, metric, [ :count, :one_minute_rate, :five_minute_rate, :fifteen_minute_rate, :mean_rate ] when Metriks::Counter prepare_metric name, metric, [ :count ] when Metriks::Gauge prepare_metric name, metric, [ :value ] when Metriks::UtilizationTimer prepare_metric name, metric, [ :count, :one_minute_rate, :five_minute_rate, :fifteen_minute_rate, :mean_rate, :min, :max, :mean, :stddev, :one_minute_utilization, :five_minute_utilization, :fifteen_minute_utilization, :mean_utilization, ], [ :median, :get_95th_percentile ] when Metriks::Timer prepare_metric name, metric, [ :count, :one_minute_rate, :five_minute_rate, :fifteen_minute_rate, :mean_rate, :min, :max, :mean, :stddev ], [ :median, :get_95th_percentile ] when Metriks::Histogram prepare_metric name, metric, [ :count, :min, :max, :mean, :stddev ], [ :median, :get_95th_percentile ] end end gauges.flatten! unless gauges.empty? submit(form_data(gauges.flatten)) end end |