Class: Configuration::OutputDataURIImage

Inherits:
OutputImage show all
Includes:
PerfStats
Defined in:
lib/httpimagestore/configuration/output.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from OutputImage

#initialize, parse

Methods inherited from Scope

#initialize, node_parsers, #parse, register_node_parser

Constructor Details

This class inherits a constructor from Configuration::OutputImage

Class Method Details

.match(node) ⇒ Object 



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# File 'lib/httpimagestore/configuration/output.rb', line 138

def self.match(node)
	node.name == 'output_data_uri_image'
end

Instance Method Details

#realize(request_state) ⇒ Object 



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# File 'lib/httpimagestore/configuration/output.rb', line 142

def realize(request_state)
	image = request_state.images[@name]
	fail "image '#{@name}' needs to be identified first to be used in data URI output" unless image.mime_type

	cache_control = @cache_control
	_context = self
	request_state.output do
		_context.measure "sending response image data with data URI encoding", "mime type: #{image.mime_type} (image #{image.data.bytesize} bytes)" do
			res['Cache-Control'] = cache_control if cache_control
			write 200, 'text/uri-list', "data:#{image.mime_type};base64,#{Base64.strict_encode64(image.data)}"
		end
	end
end