Class: Droonga::CatalogObserver

Inherits:
Object
  • Object
show all
Defined in:
lib/droonga/catalog_observer.rb

Constant Summary collapse

DEFAULT_CATALOG_PATH = 
"catalog.json"
CHECK_INTERVAL = 
1

Instance Method Summary collapse

Constructor Details

#initialize(loop) ⇒ CatalogObserver 



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# File 'lib/droonga/catalog_observer.rb', line 23

def initialize(loop)
  @catalog_path = catalog_path
  load_catalog

  watcher = Cool.io::TimerWatcher.new(CHECK_INTERVAL, true)
  observer = self
  watcher.on_timer do
    observer.ensure_latest_catalog_loaded
  end
  loop.attach(watcher)
end

Instance Method Details

#catalog_path ⇒ Object 



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# File 'lib/droonga/catalog_observer.rb', line 41

def catalog_path
  path = ENV["DROONGA_CATALOG"] || DEFAULT_CATALOG_PATH
  File.expand_path(path)
end

#catalog_updated? ⇒ Boolean 



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# File 'lib/droonga/catalog_observer.rb', line 46

def catalog_updated?
  File.mtime(catalog_path) > @catalog_mtime
end

#ensure_latest_catalog_loaded ⇒ Object 



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# File 'lib/droonga/catalog_observer.rb', line 35

def ensure_latest_catalog_loaded
  if catalog_updated?
    load_catalog
  end
end

#load_catalog ⇒ Object 



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# File 'lib/droonga/catalog_observer.rb', line 50

def load_catalog
  loader = CatalogLoader.new(@catalog_path)
  Droonga.catalog = loader.load
  @catalog_mtime = File.mtime(@catalog_path)
  $log.info "catalog loaded", path: @catalog_path, mtime: @catalog_mtime
end