Class: InternalEventsSamplingService

Inherits:
Object
  • Object
show all
Defined in:
lib/wingify/services/internal_events_sampling_service.rb

Overview

Applies sampling rules for internal SDK events: vwo_sdkUsageStats and sampled vwo_sdkDebug.

Instance Method Summary collapse

Constructor Details

#initialize(random_value_provider = nil) ⇒ InternalEventsSamplingService

Creates a sampling service.

Parameters:

  • random_value_provider (Proc, nil) (defaults to: nil) —

    Optional supplier returning a value in [0, 1) for sampling checks; overridable in tests.



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# File 'lib/wingify/services/internal_events_sampling_service.rb', line 24

def initialize(random_value_provider = nil)
  # Use Kernel#rand by default; inject a custom provider when testing
  @random_value_provider = random_value_provider || -> { rand }
end

Instance Method Details

#should_send_sampled_debug_event(settings) ⇒ Boolean

Determines whether a sampled debug event should be sent. Only called for msg_t keys in the sampled set; always-send keys bypass this.

Parameters:

  • settings (SettingsModel, nil) —

    Parsed settings from the server

Returns:

  • (Boolean) —

    true when the sampled debug event should be sent



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# File 'lib/wingify/services/internal_events_sampling_service.rb', line 47

def should_send_sampled_debug_event(settings)
  # Skip the percent check when alwaysApplySampling.server is off
  return true unless InternalEventsSamplingUtil.should_apply_sampling(settings)

  debug_sampling_percent = InternalEventsSamplingUtil.get_debug_event_sampling_percent(settings)
  InternalEventsSamplingUtil.passes_sampling_percent(debug_sampling_percent, @random_value_provider.call)
end

#should_send_usage_stats_event(settings) ⇒ Boolean

Determines whether the usage-stats event should be sent. On server, always sends unless alwaysApplySampling.server is enabled.

Parameters:

  • settings (SettingsModel, nil) —

    Parsed settings from the server

Returns:

  • (Boolean) —

    true when the usage-stats event should be sent



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# File 'lib/wingify/services/internal_events_sampling_service.rb', line 34

def should_send_usage_stats_event(settings)
  # Skip the percent check when alwaysApplySampling.server is off
  return true unless InternalEventsSamplingUtil.should_apply_sampling(settings)

  usage_stats_sampling_percent = InternalEventsSamplingUtil.get_usage_stats_sampling_percent(settings)
  InternalEventsSamplingUtil.passes_sampling_percent(usage_stats_sampling_percent, @random_value_provider.call)
end