Class: SvelteOnRails::Lib::CacheWarmer

Inherits:
Object
  • Object
show all
Defined in:
lib/svelte_on_rails/lib/cache_warmer.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CacheWarmer

Returns a new instance of CacheWarmer.



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# File 'lib/svelte_on_rails/lib/cache_warmer.rb', line 13

def initialize

  raise "the cache warmer is CURRENTLY INACTIVE!\nNot used currently, but may be useful in the future together with in-memory process-local caching."

  @configs = SvelteOnRails::Configuration.instance.configs

  return unless @configs[:cache_warmer]

  @requests = if File.exist?(file_path)
                JSON.parse(File.read(file_path))
              else
                {}
              end
  @config = SvelteOnRails::Configuration.instance.configs
  ttl = if @config[:redis_cache_store] && @config[:redis_cache_store][:expires_in].present?
          @config[:redis_cache_store][:expires_in]
        end
  ttl ||= 90.minutes
  @ttl = ttl.to_i

  cleanup_requests

  warm_up unless @warmed_up

end

Instance Attribute Details

#requests ⇒ Object

Returns the value of attribute requests.



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# File 'lib/svelte_on_rails/lib/cache_warmer.rb', line 5

def requests
  @requests
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/svelte_on_rails/lib/cache_warmer.rb', line 7

def self.instance
  raise "the cache warmer is CURRENTLY INACTIVE!\nNot used currently, but may be useful in the future together with in-memory process-local caching."

  @instance ||= new
end

Instance Method Details

#store_request(component_name, props, html_options, options, view_dir) ⇒ Object 



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# File 'lib/svelte_on_rails/lib/cache_warmer.rb', line 39

def store_request(component_name, props, html_options, options, view_dir)
  req = {
    'component_name' => component_name,
    'props' => props,
    'html_options' => html_options,
    'options' => options,
    'view_dir' => view_dir,
    'timestamp' => Time.now.to_i
  }
  req_key = "#{component_name}@#{view_dir}"
  @requests[req_key] = req

  cleanup_requests

  FileUtils.mkdir_p(File.dirname(file_path))
  File.write(file_path, @requests.to_json)
end

#warm_up ⇒ Object 



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# File 'lib/svelte_on_rails/lib/cache_warmer.rb', line 57

def warm_up
  success = 0
  errors = []
  support = SvelteOnRails::Lib::ViewHelperSupport

  @requests.each do |k, request|
    begin
      support.new(
        request['component_name'],
        request['props'],
        request['html_options'],
        request['options'].symbolize_keys,
        :cache_warmer,
        request['view_dir']
      )
      success += 1
    rescue => e
      errors.push(e)
    end
  end

  if errors.present?
    puts <<~TEXT
      [SOR] #{success} Components Caches successfully warmed up!
      #{errors.length} Components could not be loaded, Errors:
      +++
        • #{errors.join("\n  • ")}
      +++
    TEXT
  else
    puts "[SOR] #{success} Components Caches successfully warmed up!"
  end
  @warmed_up = true
end