Class: Sensu::Transport::SNSSQS
- Inherits:
-
Base
- Object
- Base
- Sensu::Transport::SNSSQS
- Defined in:
- lib/sensu/transport/snssqs.rb
Constant Summary collapse
- STRING_STR =
"String".freeze
- KEEPALIVES_STR =
"keepalives".freeze
- PIPE_STR =
"pipe".freeze
- TYPE_STR =
"type".freeze
Instance Attribute Summary collapse
-
#logger ⇒ Object
Returns the value of attribute logger.
Instance Method Summary collapse
-
#acknowledge(info, &callback) ⇒ Object
acknowledge will delete the given message from the SQS queue.
- #connect(settings) ⇒ Object
- #connected? ⇒ Boolean
-
#initialize ⇒ SNSSQS
constructor
A new instance of SNSSQS.
-
#publish(type, pipe, message, options = {}, &callback) ⇒ Object
publish publishes a message to the SNS topic.
- #statsd_incr(stat) ⇒ Object
- #statsd_time(stat) ⇒ Object
-
#subscribe(type, pipe, funnel = nil, options = {}, &callback) ⇒ Object
subscribe will begin “subscribing” to the consuming sqs queue.
Constructor Details
#initialize ⇒ SNSSQS
Returns a new instance of SNSSQS.
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# File 'lib/sensu/transport/snssqs.rb', line 15 def initialize @connected = false @subscribing = false # as of sensu 0.23.0 we need to call succeed when we have # successfully connected to SQS. # # we already have our own logic to maintain the connection to # SQS, so we can always say we're connected. # # See: # https://github.com/sensu/sensu/blob/cdc25b29169ef2dcd2e056416eab0e83dbe000bb/CHANGELOG.md#0230---2016-04-04 succeed() end |
Instance Attribute Details
#logger ⇒ Object
Returns the value of attribute logger.
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# File 'lib/sensu/transport/snssqs.rb', line 8 def logger @logger end |
Instance Method Details
#acknowledge(info, &callback) ⇒ Object
acknowledge will delete the given message from the SQS queue.
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# File 'lib/sensu/transport/snssqs.rb', line 106 def acknowledge(info, &callback) EM.defer { @sqs.( queue_url: @settings[:consuming_sqs_queue_url], receipt_handle: info.receipt_handle, ) statsd_incr("sqs.#{@settings[:consuming_sqs_queue_url]}.message.deleted") callback.call(info) if callback } end |
#connect(settings) ⇒ Object
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# File 'lib/sensu/transport/snssqs.rb', line 32 def connect(settings) @settings = settings @connected = true @results_callback = proc {} @keepalives_callback = proc {} @sqs = Aws::SQS::Client.new(region: @settings[:region]) @sns = Aws::SNS::Client.new(region: @settings[:region]) # connect to statsd, if necessary @statsd = nil if @settings[:statsd_addr] != "" pieces = @settings[:statsd_addr].split(':') @statsd = Statsd.new(pieces[0], pieces[1].to_i).tap { |sd| sd.namespace = @settings[:statsd_namespace] } @statsd_sample_rate = @settings[:statsd_sample_rate].to_f end end |
#connected? ⇒ Boolean
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# File 'lib/sensu/transport/snssqs.rb', line 30 def connected?; @connected; end |
#publish(type, pipe, message, options = {}, &callback) ⇒ Object
publish publishes a message to the SNS topic.
The type, pipe, and options are transformed into SNS message attributes and included with the message.
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# File 'lib/sensu/transport/snssqs.rb', line 121 def publish(type, pipe, , = {}, &callback) attributes = { TYPE_STR => str_attr(type), PIPE_STR => str_attr(pipe) } .each do |k, v| attributes[k.to_s] = str_attr(v.to_s) end EM.defer { (, attributes, &callback) } end |
#statsd_incr(stat) ⇒ Object
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# File 'lib/sensu/transport/snssqs.rb', line 51 def statsd_incr(stat) @statsd.increment(stat, @statsd_sample_rate) unless @statsd.nil? end |
#statsd_time(stat) ⇒ Object
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# File 'lib/sensu/transport/snssqs.rb', line 55 def statsd_time(stat) # always measure + run the block, but only if @statsd is set # do we actually report it. start = Time.now result = yield if !@statsd.nil? @statsd.timing(stat, ((Time.now - start) * 1000).round(5), @statsd_sample_rate) end result end |
#subscribe(type, pipe, funnel = nil, options = {}, &callback) ⇒ Object
subscribe will begin “subscribing” to the consuming sqs queue.
What this really means is that we will start polling for messages from the SQS queue, and, depending on the message type, it will call the appropriate callback.
This assumes that the SQS Queue is consuming “Raw” messages from SNS.
“subscribing” means that the “callback” parameter will be called when there is a message for you to consume.
“funnel” and “type” parameters are completely ignored.
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# File 'lib/sensu/transport/snssqs.rb', line 79 def subscribe(type, pipe, funnel = nil, = {}, &callback) self.logger.info("subscribing to type=#{type}, pipe=#{pipe}, funnel=#{funnel}") if pipe == KEEPALIVES_STR @keepalives_callback = callback else @results_callback = callback end unless @subscribing do_all_the_time { EM::Iterator.new(, 10).each do |msg, iter| statsd_time("sqs.#{@settings[:consuming_sqs_queue_url]}.process_timing") { if msg.[PIPE_STR].string_value == KEEPALIVES_STR @keepalives_callback.call(msg, msg.body) else @results_callback.call(msg, msg.body) end } iter.next end } @subscribing = true end end |