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Contents
module YARD
module Server
# Implements static caching for requests.
#
# @see Router Router documentation for "Caching"
module StaticCaching
# Called by a router to return the cached object. By default, this
# method performs disk-based caching. To perform other forms of caching,
# implement your own +#check_static_cache+ method and mix the module into
# the Router class.
#
# Note that caching does not occur here. This method simply checks for
# the existence of cached data. To actually cache a response, see
# {Commands::Base#cache}.
#
# @example Implementing In-Memory Cache Checking
# module MemoryCaching
# def check_static_cache
# # $memory_cache is filled by {Commands::Base#cache}
# cached_data = $memory_cache[request.path]
# if cached_data
# [200, {'Content-Type' => 'text/html'}, [cached_data]]
# else
# nil
# end
# end
# end
#
# class YARD::Server::Router; include MemoryCaching; end
# @return [Array(Number,Hash,Array)] the Rack-style response
# @return [nil] if no cache is available and routing should continue
# @see Commands::Base#cache
def check_static_cache
return nil unless adapter.document_root
cache_path = File.join(adapter.document_root, request.path.sub(/\.html$/, '') + '.html')
cache_path = cache_path.sub(%r{/\.html$}, '.html')
if File.file?(cache_path)
log.debug "Loading cache from disk: #{cache_path}"
return [200, {'Content-Type' => 'text/html'}, [File.read_binary(cache_path)]]
end
nil
end
end
end
end
Version data entries
30 entries across 30 versions & 4 rubygems