Method: Cisco::Client.filter_data

Defined in:
lib/cisco_node_utils/client/utils.rb

.filter_data(data: nil, keys: nil) ⇒ Object

Helper method for get(data_format: :nxapi_structured).

Parameters:

  • data (Array, Hash) (defaults to: nil) —

    structured output from node

  • keys (Array) (defaults to: nil) —

    lookup sequence



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# File 'lib/cisco_node_utils/client/utils.rb', line 141

def self.filter_data(data: nil,
                     keys: nil)
  return nil if data.nil? || data.empty?
  keys ||= []
  keys.each do |filter|
    # if filter is a Hash and data is an array, check each
    # array index (which should return another hash) to see if
    # it contains the matching key/value pairs specified in token,
    # and return the first match (or nil)
    if filter.kind_of?(Hash)
      fail "Expected Array, got #{data.class}" unless data.is_a? Array
      data = data.select { |x| filter.all? { |k, v| x[k] == v } }
      fail "Multiple matches found for #{filter}" if data.length > 1
      fail "No match found for #{filter}" if data.length == 0
      data = data[0]
    else # data is array or hash
      if data.is_a? Array
        final = []
        data.each do |row|
          final << row[filter]
        end
        return final
      end
      fail "No key \"#{filter}\" in #{data}" unless data.key?(filter)
      data = data[filter]
    end
  end
  data
end