Class: RailsErrorDashboard::Services::ExceptionFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_error_dashboard/services/exception_filter.rb

Overview

Pure algorithm: Determine if an exception should be logged

No database access — checks configuration rules against exception data. Used by LogError command to filter exceptions before logging.

Examples:

ExceptionFilter.should_log?(exception) # => true/false

Class Method Summary collapse

Class Method Details

.critical?(exception) ⇒ Boolean

Check if exception is a critical error type

Parameters:

  • exception (Exception) —

    The exception to check

Returns:

  • (Boolean) —

    true if the exception is critical



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# File 'lib/rails_error_dashboard/services/exception_filter.rb', line 64

def self.critical?(exception)
  SeverityClassifier.critical?(exception.class.name)
end

.ignored?(exception) ⇒ Boolean

Check if exception is in the ignored exceptions list Supports both string class names and regex patterns

Parameters:

  • exception (Exception) —

    The exception to check

Returns:

  • (Boolean) —

    true if the exception should be ignored



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# File 'lib/rails_error_dashboard/services/exception_filter.rb', line 26

def self.ignored?(exception)
  ignored_exceptions = RailsErrorDashboard.configuration.ignored_exceptions
  return false if ignored_exceptions.blank?

  exception_class_name = exception.class.name

  ignored_exceptions.any? do |ignored|
    case ignored
    when String
      exception.is_a?(ignored.constantize)
    when Regexp
      exception_class_name.match?(ignored)
    else
      false
    end
  rescue NameError
    RailsErrorDashboard::Logger.warn("Invalid ignored exception class: #{ignored}")
    false
  end
end

.sampled_out?(exception) ⇒ Boolean

Check if exception should be skipped due to sampling rate Critical errors are ALWAYS logged regardless of sampling

Parameters:

  • exception (Exception) —

    The exception to check

Returns:

  • (Boolean) —

    true if the exception should be skipped



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# File 'lib/rails_error_dashboard/services/exception_filter.rb', line 51

def self.sampled_out?(exception)
  sampling_rate = RailsErrorDashboard.configuration.sampling_rate

  return false if sampling_rate >= 1.0
  return false if critical?(exception)
  return true if sampling_rate <= 0.0

  rand > sampling_rate
end

.should_log?(exception) ⇒ Boolean

Check if an exception should be logged (not ignored, not sampled out)

Parameters:

  • exception (Exception) —

    The exception to check

Returns:

  • (Boolean) —

    true if the exception should be logged



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# File 'lib/rails_error_dashboard/services/exception_filter.rb', line 16

def self.should_log?(exception)
  return false if ignored?(exception)
  return false if sampled_out?(exception)
  true
end