class Fluent::RemoveEmptyOutput::PlaceholderExpander
Attributes
log[R]
placeholders[R]
Public Class Methods
new(log)
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# File lib/fluent/plugin/out_remove_empty.rb, line 111 def initialize(log) @log = log end
Public Instance Methods
expand(str)
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# File lib/fluent/plugin/out_remove_empty.rb, line 134 def expand(str) str.gsub(/(\${[a-z_]+(\[-?[0-9]+\])?}|__[A-Z_]+__)/) { log.warn "remove_empty: unknown placeholder `#{$1}` found" unless @placeholders.include?($1) @placeholders[$1] } end
prepare_placeholders(time, record, opts)
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# File lib/fluent/plugin/out_remove_empty.rb, line 115 def prepare_placeholders(time, record, opts) placeholders = { '${time}' => Time.at(time).to_s } record.each {|key, value| placeholders.store("${#{key}}", value) } opts.each do |key, value| if value.kind_of?(Array) # tag_parts, etc size = value.size value.each_with_index { |v, idx| placeholders.store("${#{key}[#{idx}]}", v) placeholders.store("${#{key}[#{idx-size}]}", v) # support [-1] } else # string, interger, float, and others? placeholders.store("${#{key}}", value) end end @placeholders = placeholders end