Class: Fluentd::Setting::Config

Inherits:
Object
  • Object
show all
Defined in:
app/models/fluentd/setting/config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config_file) ⇒ Config

Returns a new instance of Config.



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# File 'app/models/fluentd/setting/config.rb', line 9

def initialize(config_file)
  @fl_config = Fluent::Config.parse(IO.read(config_file), config_file, nil, true)
  @file = config_file
end

Instance Attribute Details

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'app/models/fluentd/setting/config.rb', line 6

def file
  @file
end

#fl_config ⇒ Object (readonly)

Returns the value of attribute fl_config.



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# File 'app/models/fluentd/setting/config.rb', line 6

def fl_config
  @fl_config
end

Instance Method Details

#delete_element(name, arg, element) ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 66

def delete_element(name, arg, element)
  if name == "label"
    label_section = fl_config.elements(name: name, arg: arg).first
    original_size = label_section.elements.size
    remaining_elements = label_section.elements.reject do |e|
      element == e
    end
    if remaining_elements.empty?
      remaining_elements = fl_config.elements.reject do |e|
        label_section == e
      end
      fl_config.elements = remaining_elements
      return element
    else
      label_section.elements = remaining_elements
      if original_size == label_section.elements.size
        return nil
      else
        return element
      end
    end
  else
    original_size = fl_config.elements.size
    remaining_elements = fl_config.elements.reject do |e|
      element == e
    end
    fl_config.elements = remaining_elements
    if original_size == fl_config.elements.size
      return nil
    else
      return element
    end
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/fluentd/setting/config.rb', line 14

def empty?
  elements.length.zero?
end

#filters ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 24

def filters
  elements.find_all do |elm|
    elm.name == "filter"
  end
end

#formatted ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 106

def formatted
  fl_config.to_s.gsub(/<\/?ROOT>/, "").strip_heredoc.gsub(%r|^</.*?>$|, "\\0\n")
end

#group_by_label ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 42

def group_by_label
  hash = Hash.new{|h, k| h[k] = {} }
  sources.each do |source|
    label = source["@label"] || source["label"]
    if label
      hash[label][:sources] = [source]
    else
      hash["ROOT"][:sources] = [source]
    end
  end
  hash["ROOT"][:filters] = filters unless filters.empty?
  hash["ROOT"][:matches] = matches unless matches.empty?

  labels.each do |label|
    hash[label.arg][:filters] = label.elements.find_all do |e|
      e.name == "filter"
    end
    hash[label.arg][:matches] = label.elements.find_all do |e|
      e.name == "match"
    end
  end
  hash
end

#labels ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 36

def labels
  elements.find_all do |elm|
    elm.name == "label"
  end
end

#matches ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 30

def matches
  elements.find_all do |elm|
    elm.name == "match"
  end
end

#sources ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 18

def sources
  elements.find_all do |elm|
    elm.name == "source"
  end
end

#write_to_file ⇒ Object 



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# File 'app/models/fluentd/setting/config.rb', line 101

def write_to_file
  return unless Fluentd.instance
  Fluentd.instance.agent.config_write formatted
end