Class: Belt::TableInference

Inherits:
Object
  • Object
show all
Defined in:
lib/belt/table_inference.rb

Overview

Infers DynamoDB table names from route paths by matching against tables defined in a Terraform file containing aws_dynamodb_table resources.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dynamodb_tables_file) ⇒ TableInference

Returns a new instance of TableInference.



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# File 'lib/belt/table_inference.rb', line 9

def initialize(dynamodb_tables_file)
  @available_tables = if dynamodb_tables_file && File.exist?(dynamodb_tables_file)
                        parse_available_tables(dynamodb_tables_file)
                      else
                        []
                      end
end

Instance Attribute Details

#available_tables ⇒ Object (readonly)

Returns the value of attribute available_tables.



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# File 'lib/belt/table_inference.rb', line 7

def available_tables
  @available_tables
end

Instance Method Details

#infer_tables_from_route(route) ⇒ Object 



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# File 'lib/belt/table_inference.rb', line 17

def infer_tables_from_route(route)
  path_segments = route.path.split('/').reject(&:empty?)
  return [] if path_segments.empty?

  resource_segment = path_segments.find { |seg| !seg.start_with?('{') }
  return [] unless resource_segment

  inferred = find_matching_table(resource_segment)
  inferred ? [inferred] : []
end