Class: RubyZipkin::MetadataLogger

Inherits:
Object
  • Object
show all
Defined in:
lib/rubyzipkin/metadata_logger.rb

Class Method Summary collapse

Class Method Details

.log(key, value, max_size_bytes = 512) ⇒ Object

log a key value pair into a zipkin trace as a KV span value since logging can ve quite extensive, we set a cap for the max size in bytes for a trace header



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# File 'lib/rubyzipkin/metadata_logger.rb', line 10

def self.log(key, value, max_size_bytes = 512)
  if key.to_s == "action_controller.rescue.request" || key.to_s == "action_controller.rescue.response"
    ann = ::Trace::BinaryAnnotation.new(key, value.as_json.to_s[0..max_size_bytes], "STRING", ::Trace.default_endpoint)
    puts ann.to_s
    ::Trace.record(ann)
  else
    ann = ::Trace::BinaryAnnotation.new(key, value.to_s[0..max_size_bytes], "STRING", ::Trace.default_endpoint)
    ::Trace.record(ann)
  end
end

.log_request(headers) ⇒ Object

Do a full dump of a request header into zipkin.



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# File 'lib/rubyzipkin/metadata_logger.rb', line 22

def self.log_request(headers)
  if headers
    headers.each do |header, value|
        MetadataLogger.log("HEADER_#{header}", value)
    end
  end
end