Class: Lutaml::Ea::Diagram::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/lutaml/ea/diagram/configuration.rb

Overview

Configuration management for diagram styling

This class provides hierarchical style resolution with the following priority:

  1. EA Data (QEA/XMI) - Highest priority

  2. Class-specific overrides (user config)

  3. Package-based styling (wildcard support)

  4. Stereotype-based styling

  5. Global defaults - Lowest priority

Examples:

config = Configuration.new("config/diagram_styles.yml")
fill_color = config.style_for(element, "colors.fill")
font_family = config.style_for(element, "fonts.class_name.family")

Constant Summary collapse

DEFAULT_CONFIG_PATHS =

Default configuration file paths in order of preference

[
  "config/diagram_styles.yml",
  File.expand_path("~/.lutaml/diagram_styles.yml"),
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config_path = nil) ⇒ Configuration

Initialize configuration with optional custom path

Parameters:

  • config_path (String, nil) (defaults to: nil) —

    Path to custom configuration file



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# File 'lib/lutaml/ea/diagram/configuration.rb', line 34

def initialize(config_path = nil)
  @config_data = load_configuration(config_path)
end

Instance Attribute Details

#config_data ⇒ Object (readonly)

Returns the value of attribute config_data.



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# File 'lib/lutaml/ea/diagram/configuration.rb', line 23

def config_data
  @config_data
end

Instance Method Details

#connector_style(connector_type, property) ⇒ Object

Get connector style

Type of connector (generalization, association, etc.)

Parameters:

  • connector_type (String)
  • property (String) —

    Style property path

Returns:

  • (Object) —

    Style value



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# File 'lib/lutaml/ea/diagram/configuration.rb', line 107

def connector_style(connector_type, property)
  dig_config("connectors.#{connector_type}.#{property}")
end

#legend_config ⇒ Hash

Get legend configuration

Returns:

  • (Hash) —

    Legend configuration



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# File 'lib/lutaml/ea/diagram/configuration.rb', line 114

def legend_config
  config_data["legend"] || {}
end

#style_for(element, property) ⇒ Object

Get style for a specific element

Parameters:

  • element (Lutaml::Uml::Class, Object) —

    UML element

  • property (String) —

    Style property path (e.g., “colors.fill”)

Returns:

  • (Object) —

    Style value



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# File 'lib/lutaml/ea/diagram/configuration.rb', line 43

def style_for(element, property) # rubocop:disable Metrics/AbcSize,Metrics/CyclomaticComplexity,Metrics/MethodLength,Metrics/PerceivedComplexity
  return nil if property.nil? || property.empty?

  # Priority: Class-specific > Package > Stereotype > Defaults
  value = nil

  # 1. Try class-specific override (highest priority)
  if element.respond_to?(:name) && element.name
    class_config = dig_config("classes.#{element.name}.#{property}")
    value = class_config if class_config
  end

  # 2. Try package-based styling
  if !value &&
      element.respond_to?(:package_name) && element.package_name
    # Support wildcards: "CityGML::*"
    package_configs = config_data["packages"] || {}
    package_configs.each do |pattern, pkg_config|
      if matches_package?(element.package_name, pattern)
        pkg_value = dig_hash(pkg_config, property)
        value = pkg_value if pkg_value
        break
      end
    end
  end

  # 3. Try stereotype-based styling
  if !value && element.respond_to?(:stereotype) && element.stereotype
    stereotypes = Array(element.stereotype)
    stereotypes.each do |stereo|
      stereo_value = dig_config("stereotypes.#{stereo}.#{property}")
      if stereo_value
        value = stereo_value
        break
      end
    end
  end

  # 4. Fall back to defaults (lowest priority)
  # Handle property name aliases
  # (e.g., "colors.fill" -> "colors.default_fill")
  unless value
    value = dig_config("defaults.#{property}")

    # If not found, try with "default_" prefix for certain properties
    unless value
      if property.start_with?("colors.fill")
        value = dig_config("defaults.colors.default_fill")
      elsif property.start_with?("colors.stroke") &&
          !property.include?("stroke_")
        value = dig_config("defaults.colors.default_stroke")
      end
    end
  end

  value
end

#to_h ⇒ Hash

Get the entire configuration data

Returns:

  • (Hash) —

    Complete configuration data



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# File 'lib/lutaml/ea/diagram/configuration.rb', line 121

def to_h
  config_data
end