Class: Fluent::NotifierOutput::Test

Inherits:
Object
  • Object
show all
Defined in:
lib/fluent/plugin/out_notifier.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(element) ⇒ Test

Returns a new instance of Test.



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# File 'lib/fluent/plugin/out_notifier.rb', line 213

def initialize(element)
  element.keys.each do |k|
    v = element[k]
    case k
    when 'check'
      case v
      when 'tag'
        @check = :tag
        @include_pattern = element['include_pattern'] ? Regexp.compile(element['include_pattern']) : nil
        @exclude_pattern = element['exclude_pattern'] ? Regexp.compile(element['exclude_pattern']) : nil
        if @include_pattern.nil? and @exclude_pattern.nil?
          raise Fluent::ConfigError, "At least one of include_pattern or exclude_pattern must be specified for 'check tag'"
        end
      when 'numeric'
        @check = :numeric
        @lower_threshold = element['lower_threshold'] ? element['lower_threshold'].to_f : nil
        @upper_threshold = element['upper_threshold'] ? element['upper_threshold'].to_f : nil
        if @lower_threshold.nil? and @upper_threshold.nil?
          raise Fluent::ConfigError, "At least one of lower_threshold or upper_threshold must be specified for 'check numeric'"
        end
      when 'regexp'
        @check = :regexp
        @include_pattern = element['include_pattern'] ? Regexp.compile(element['include_pattern']) : nil
        @exclude_pattern = element['exclude_pattern'] ? Regexp.compile(element['exclude_pattern']) : nil
        if @include_pattern.nil? and @exclude_pattern.nil?
          raise Fluent::ConfigError, "At least one of include_pattern or exclude_pattern must be specified for 'check regexp'"
        end
      else
        raise Fluent::ConfigError, "invalid check value of test [numeric/regexp]: '#{v}'"
      end
    when 'target_key'
      @target_key = v
    end
  end
  unless @check
    raise Fluent::ConfigError, "'check' missing in <test> section"
  end
  if @target_key.nil? and @check != :tag
    raise Fluent::ConfigError, "'target_key' missing in <test> section"
  end
end

Instance Attribute Details

#check ⇒ Object

Returns the value of attribute check.



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# File 'lib/fluent/plugin/out_notifier.rb', line 209

def check
  @check
end

#exclude_pattern ⇒ Object

Returns the value of attribute exclude_pattern.



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# File 'lib/fluent/plugin/out_notifier.rb', line 211

def exclude_pattern
  @exclude_pattern
end

#include_pattern ⇒ Object

Returns the value of attribute include_pattern.



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# File 'lib/fluent/plugin/out_notifier.rb', line 211

def include_pattern
  @include_pattern
end

#lower_threshold ⇒ Object

Returns the value of attribute lower_threshold.



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# File 'lib/fluent/plugin/out_notifier.rb', line 210

def lower_threshold
  @lower_threshold
end

#target_key ⇒ Object

Returns the value of attribute target_key.



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# File 'lib/fluent/plugin/out_notifier.rb', line 209

def target_key
  @target_key
end

#upper_threshold ⇒ Object

Returns the value of attribute upper_threshold.



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# File 'lib/fluent/plugin/out_notifier.rb', line 210

def upper_threshold
  @upper_threshold
end

Instance Method Details

#test(tag, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_notifier.rb', line 255

def test(tag, record)
  v = case @check
      when :numeric, :regexp
        record[@target_key]
      when :tag
        tag
      end
  return false if v.nil?

  case @check
  when :numeric
    v = v.to_f
    (@lower_threshold.nil? or @lower_threshold <= v) and (@upper_threshold.nil? or v <= @upper_threshold)
  when :tag, :regexp
    v = v.to_s.force_encoding('ASCII-8BIT')
    ((@include_pattern.nil? or @include_pattern.match(v)) and (@exclude_pattern.nil? or (not @exclude_pattern.match(v)))) or false
  end
end