module Mmtrix::Agent::AttributeProcessing
Constants
- EMPTY_ARRAY_STRING_LITERAL
- EMPTY_HASH_STRING_LITERAL
Public Instance Methods
flatten_and_coerce(object, prefix = nil, result = {}, &blk)
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# File lib/mmtrix/agent/attribute_processing.rb, line 13 def flatten_and_coerce(object, prefix = nil, result = {}, &blk) if object.is_a? Hash flatten_and_coerce_hash(object, prefix, result, &blk) elsif object.is_a? Array flatten_and_coerce_array(object, prefix, result, &blk) elsif prefix val = Coerce.scalar(object) if blk blk.call(prefix, val) elsif !val.nil? result[prefix] = val end else Mmtrix::Agent.logger.warn "Unexpected object: #{object.inspect} with nil prefix passed to Mmtrix::Agent::AttributeProcessing.flatten_and_coerce" end result end
flatten_and_coerce_array(array, prefix, result, &blk)
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# File lib/mmtrix/agent/attribute_processing.rb, line 46 def flatten_and_coerce_array(array, prefix, result, &blk) if array.empty? if blk blk.call(prefix, EMPTY_ARRAY_STRING_LITERAL) else result[prefix] = EMPTY_ARRAY_STRING_LITERAL end else array.each_with_index do |val, idx| next_prefix = prefix ? "#{prefix}.#{idx}" : idx.to_s flatten_and_coerce(val, next_prefix, result, &blk) end end end
flatten_and_coerce_hash(hash, prefix, result, &blk)
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# File lib/mmtrix/agent/attribute_processing.rb, line 31 def flatten_and_coerce_hash(hash, prefix, result, &blk) if hash.empty? if blk blk.call(prefix, EMPTY_HASH_STRING_LITERAL) else result[prefix] = EMPTY_HASH_STRING_LITERAL end else hash.each do |key, val| next_prefix = prefix ? "#{prefix}.#{key}" : key.to_s flatten_and_coerce(val, next_prefix, result, &blk) end end end