Class: Fusuma::Plugin::Filters::Filter

Inherits:
Base
  • Object
show all
Defined in:
lib/fusuma/plugin/filters/filter.rb

Overview

Filter to keep/discard events from input plugin

Direct Known Subclasses

LibinputDeviceFilter

Instance Method Summary collapse

Methods inherited from Base

#config_index, #config_param_types, #config_params, inherited, plugins, #shutdown

Instance Method Details

#filter(event) ⇒ Event, NilClass

Filter input event

Parameters:

  • event (Event)

Returns:

  • (Event) —

    when keeping event

  • (NilClass) —

    when discarding record



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# File 'lib/fusuma/plugin/filters/filter.rb', line 14

def filter(event)
  return event if !/#{source}/.match?(event.tag)

  return event if keep?(event.record)

  nil
end

#keep?(record) ⇒ True, False

This method is abstract.

override ‘#keep?` to implement

Parameters:

Returns:

  • (True) —

    when keeping record

  • (False) —

    when discarding record



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# File 'lib/fusuma/plugin/filters/filter.rb', line 26

def keep?(record)
  true if record
end

#source ⇒ Object

Set source for tag from config.yml. DEFAULT_SOURCE is defined in each Filter plugins.



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# File 'lib/fusuma/plugin/filters/filter.rb', line 32

def source
  @source ||= config_params(:source) || self.class.const_get(:DEFAULT_SOURCE)
end