Class: Visor::Image::DeleteImage

Inherits:
Goliath::API
  • Object
show all
Includes:
Common::Exception, Common::Util
Defined in:
lib/image/routes/delete_image.rb

Overview

Delete the metadata and data of the image with the given id.

Instance Method Summary collapse

Instance Method Details

#exit_error(code, message) ⇒ Array

Produce an HTTP response with an error code and message.

Parameters:

  • code (Fixnum) —

    The error code.

  • message (String) —

    The error message.

Returns:

  • (Array) —

    The HTTP response containing an error code and its message.



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# File 'lib/image/routes/delete_image.rb', line 57

def exit_error(code, message)
  logger.error message
  [code, {}, {code: code, message: message}]
end

#on_headers(env, headers) ⇒ Object

Pre-process headers as they arrive and load them into a environment variable.

Parameters:

  • env (Object) —

    The Goliath environment variables.

  • headers (Object) —

    The incoming request HTTP headers.



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# File 'lib/image/routes/delete_image.rb', line 18

def on_headers(env, headers)
  logger.debug "Received headers: #{headers.inspect}"
  env['headers'] = headers
end

#response(env) ⇒ Array

Query database to delete the wanted image based on its id.

Parameters:

  • env (Object) —

    The Goliath environment variables.

Returns:

  • (Array) —

    The HTTP response containing the image metadata or an error code and its messages if anything was raised.



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# File 'lib/image/routes/delete_image.rb', line 30

def response(env)
  authorize(env, vas)
  meta = vms.delete_image(params[:id])
  uri  = meta[:location]
  name = meta[:store]

  if uri && name
    store = Visor::Image::Store.get_backend(uri, configs)
    store.delete unless name == 'http'
  end
rescue Forbidden => e
  exit_error(403, e.message)
rescue NotFound => e
  exit_error(404, e.message)
rescue InternalError => e
  exit_error(503, e.message)
else
  [200, {}, {image: meta}]
end