Class: RubyMapscript::Mapserver

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_mapscript/mapserver.rb

Instance Method Summary collapse

Constructor Details

#initialize(mapfile) ⇒ Mapserver

Returns a new instance of Mapserver.



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# File 'lib/ruby_mapscript/mapserver.rb', line 10

def initialize(mapfile)
  @wms = Mapscript::MapObj.new(mapfile)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/ruby_mapscript/mapserver.rb', line 14

def call(env)
  req = Mapscript::OWSRequest.new
  %w(REQUEST_METHOD QUERY_STRING HTTP_COOKIE).each do |var|
    ENV[var] = env[var]
  end
  req.loadParams
  #Returns the number of name/value pairs collected.
  #Warning: most errors will result in a process exit!

  # redirect stdout & handle request
  Mapscript::msIO_installStdoutToBuffer()
  retval = @wms.OWSDispatch(req)
  #Returns MS_DONE (2) if there is no valid OWS request in the req object,
  # MS_SUCCESS (0) if an OWS request was successfully processed and
  # MS_FAILURE (1) if an OWS request was not successfully processed.
  content_type = Mapscript::msIO_stripStdoutBufferContentType()
  map_image = Mapscript::msIO_getStdoutBufferBytes()
  Mapscript::msIO_resetHandlers()

  [200, {'Content-Type' => content_type}, map_image]
end