Class: ESI::Parser

Inherits:
CParser show all
Defined in:
lib/esi/parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from CParser

#depth, #depth=, #end_tag_handler, #esi_tag, #esi_tag=, #flush, #output, #output<<, #output=, #output_handler, #process, #start_tag_handler

Constructor Details

#initialize(output, router, cache, max_depth) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/esi/parser.rb', line 15

def initialize( output, router, cache, max_depth )
  super()
  @router = router
  @cache = cache
  @max_depth = max_depth
  @response = ESI::Response.new( output )
 
  end_tag_handler do|tag_name|
    #puts "rb end #{tag_name.inspect}"
    if self.esi_tag.name == tag_name.sub(/esi:/,'')

      if tag_name.match(/try|include/) # run these in parallel
        tag = self.esi_tag.clone
        tag_buffer = @response.partial_buffer

        #puts "start #{tag_name}"
        thread = Thread.new(tag,tag_buffer) do|tag,buffer|
          begin
            tag.close(buffer)
          ensure
            buffer.close_write
            #puts "finish #{tag_name}"
          end
        end
        @response.wait_thread( thread )
      else
        self.esi_tag.close( @response.active_buffer )
      end

      self.esi_tag = nil

    else
      self.esi_tag.close_child(self.output,tag_name)
    end
  end
end

Instance Attribute Details

#response ⇒ Object (readonly)

Returns the value of attribute response.



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# File 'lib/esi/parser.rb', line 13

def response
  @response
end

Instance Method Details

#finish ⇒ Object 



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# File 'lib/esi/parser.rb', line 77

def finish
  super
  @response.flush
end

#prepare(request_params, http_params) ⇒ Object 



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# File 'lib/esi/parser.rb', line 52

def prepare( request_params, http_params )
  start_tag_handler do|tag_name, attrs|
    #puts "rb start #{tag_name.inspect}"
    tag = ESI::Tag::Base.create( @router,
                                 request_params,
                                 http_params,
                                 tag_name.gsub(/esi:/,''),
                                 attrs,
                                 @cache )
    # set the tag depth
    tag.depth = self.depth if tag.respond_to?(:depth=)
    tag.max_depth = @max_depth if tag.respond_to?(:max_depth=)

    if self.esi_tag and self.esi_tag.respond_to?(:add_child)
      self.esi_tag.add_child(tag)
    else
      self.esi_tag = tag
    end
  end
  self.output_handler do|chars|
    @response.active_buffer << chars
    @response.send
  end
end