Class: CpuInspectCore::Backends::FileBackend

Inherits:
Object
  • Object
show all
Defined in:
lib/cpu_inspect_core/backends/file_backend.rb

Overview

Default backend: in-process Store + rotating local log file. Works correctly on a single dyno or in local development. On Heroku with multiple dynos each dyno has its own isolated instance —use RedisBackend to aggregate across dynos.

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ FileBackend

Returns a new instance of FileBackend.



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# File 'lib/cpu_inspect_core/backends/file_backend.rb', line 13

def initialize(config)
  @store      = Store.new
  @log_writer = LogWriter.new(config)
end

Instance Method Details

#all_dynos ⇒ Object

Returns { dyno_name => sample } for the local process only.



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# File 'lib/cpu_inspect_core/backends/file_backend.rb', line 29

def all_dynos
  sample = @store.latest
  return {} if sample.nil?

  { ENV.fetch('DYNO', 'local') => sample }
end

#latest ⇒ Object

Most recent sample from this process.



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# File 'lib/cpu_inspect_core/backends/file_backend.rb', line 24

def latest
  @store.latest
end

#write(payload) ⇒ Object 



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# File 'lib/cpu_inspect_core/backends/file_backend.rb', line 18

def write(payload)
  @store.push(payload)
  @log_writer.write(payload)
end