Module: ActiveVlc::PipelineDump

Extended by:
ActiveSupport::Concern
Included in:
Pipeline, Stage::Base, Stage::Input
Defined in:
lib/activevlc/pipeline_dump.rb

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

TAB_WIDTH = 
2

Instance Method Summary collapse

Instance Method Details

#_dump(depth = 0) ⇒ Object 



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# File 'lib/activevlc/pipeline_dump.rb', line 18

def _dump(depth = 0)
  name = instance_eval &_find_in_ancestors(:_dump_name)
  childs = instance_eval &_find_in_ancestors(:_dump_childs)

  "#{_dump_depth(depth)}+ #{name}\n" +
    childs.map { |c| c._dump(depth + 1) }.join
end

#_dump_depth(depth) ⇒ Object 



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# File 'lib/activevlc/pipeline_dump.rb', line 26

def _dump_depth(depth)
  ' ' * depth * TAB_WIDTH
end

#_find_in_ancestors(sym) ⇒ Object

FIXME Find an elegant way to do this :-/ Here we walk the ancestor array to find the one which included us first and therefore has a default _dump_name and _dump_childs. It will stops to the first ancestor which has (re)defined it.



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# File 'lib/activevlc/pipeline_dump.rb', line 34

def _find_in_ancestors(sym)
  klass = self.class
  while klass.respond_to?(sym) and klass.superclass and not klass.send(sym)
    klass = klass.superclass
  end
  klass.send(sym)
end