Class: Lutaml::Xml::Decisions::Rules::DefaultPreferenceRule

Inherits:
DecisionRule
  • Object
show all
Defined in:
lib/lutaml/xml/decisions/rules/default_preference_rule.rb

Overview

Priority 5: Default preference

When no other rule applies:

  • If namespace has element_form_default :unqualified, prefer prefix format (so children can be unqualified without xmlns=“”)

  • Otherwise, prefer default namespace format (cleaner, no prefix)

Instance Method Summary collapse

Methods inherited from DecisionRule

#<=>, #name

Instance Method Details

#applies?(_context) ⇒ Boolean

Always applies (catch-all rule)

Returns:

  • (Boolean) 


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# File 'lib/lutaml/xml/decisions/rules/default_preference_rule.rb', line 21

def applies?(_context)
  # This rule always applies as the fallback
  true
end

#decide(context) ⇒ Object

Decision: Prefer prefix format when element_form_default is unqualified BUT: elementFormDefault only applies to LOCAL (nested) elements, not the root. The root element itself should use default format.



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# File 'lib/lutaml/xml/decisions/rules/default_preference_rule.rb', line 29

def decide(context)
  if context.has_namespace?
    ns_class = context.namespace_class
    # When element_form_default is EXPLICITLY set to unqualified AND this is NOT the root,
    # use prefix format so children can be in blank namespace (no xmlns).
    # Root element uses default format since elementFormDefault only affects local elements.
    # CRITICAL: Only applies when explicitly set, not when defaulted to :unqualified.
    if ns_class.element_form_default_set? &&
        ns_class.element_form_default == :unqualified &&
        !context.root?
      Decision.prefix(
        prefix: ns_class.prefix_default || "ns",
        namespace_class: ns_class,
        reason: "Priority 5: element_form_default :unqualified (non-root) - use prefix for parent",
      )
    else
      Decision.default(
        namespace_class: ns_class,
        reason: "Priority 5: Default preference - use default format for cleaner output",
      )
    end
  else
    # No namespace - no decision needed
    Decision.default(
      namespace_class: nil,
      reason: "Priority 5: No namespace - no prefix needed",
    )
  end
end

#priority ⇒ Object

Priority 5 - Lowest priority (catch-all)



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# File 'lib/lutaml/xml/decisions/rules/default_preference_rule.rb', line 16

def priority
  5
end