Class: Webgen::SourceHandler::Memory

Inherits:
Object
  • Object
show all
Includes:
Base, WebsiteAccess
Defined in:
lib/webgen/sourcehandler/memory.rb

Overview

This source handler should be used for handling nodes that are created during the write phase.

Instance Method Summary collapse

Methods included from Base

#node_exists?, #output_path, #page_from_path, #parent_node

Methods included from Base::OutputPathHelpers

#standard_output_path

Methods included from Loggable

#log, #puts

Methods included from WebsiteAccess

included, website

Constructor Details

#initialize ⇒ Memory

:nodoc:



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# File 'lib/webgen/sourcehandler/memory.rb', line 12

def initialize #:nodoc:
  website.blackboard.add_listener(:node_flagged) do |node, *flags|
    node.tree[node.node_info[:memory_source_alcn]].flag(:dirty) if node.node_info[:memory_source_alcn]
  end
end

Instance Method Details

#content(node) ⇒ Object

Return the content of the memory node. If the memory node was not created in this webgen run, it will be flagged for reinitialization (and therefore recreation).



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# File 'lib/webgen/sourcehandler/memory.rb', line 31

def content(node)
  if @data && @data[node.alcn]
    @data[node.alcn].call
  else
    node.flag(:reinit)
    nil
  end
end

#create_node(path, source_alcn, data = nil) ⇒ Object

Create a node for the path. The source_alcn specifies the node that creates this memory node when written. You have two options for providing the content for this node: either you set data to a string (or a Webgen::Path::SourceIO object) or you provide a block which takes the created node as argument and returns a string (or a Webgen::Path::SourceIO object).



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# File 'lib/webgen/sourcehandler/memory.rb', line 22

def create_node(path, source_alcn, data = nil)
  super(path) do |node|
    node.node_info[:memory_source_alcn] = source_alcn
    (@data ||= {})[node.alcn] = lambda { data || yield(node) }
  end
end