class Phlex::FIFOCacheStore - phlex-2.3.1 Documentation

Public Class Methods

Source

# File lib/phlex/fifo_cache_store.rb, line 5
def initialize(max_bytesize: 2 ** 20)
        @fifo = Phlex::FIFO.new(
                max_bytesize:,
                max_value_bytesize: max_bytesize
        )
end

Public Instance Methods

clear ()

Source

# File lib/phlex/fifo_cache_store.rb, line 27
def clear
        @fifo.clear
end

fetch (key) { || ... }

Source

# File lib/phlex/fifo_cache_store.rb, line 12
def fetch(key)
        fifo = @fifo
        key = map_key(key)

        if (result = fifo[key])
                JSON.parse(result)
        else
                result = yield

                fifo[key] = JSON.fast_generate(result)

                result
        end
end

Private Instance Methods

map_key (value)

Source

# File lib/phlex/fifo_cache_store.rb, line 31
        def map_key(value)
        case value
        when Array
                value.map { |it| map_key(it) }
        when Hash
                value.to_h { |k, v| [map_key(k), map_key(v)].freeze }
        when String, Symbol, Integer, Float, Time, true, false, nil
                value
        else
                if value.respond_to?(:cache_key_with_version)
                        map_key(value.cache_key_with_version)
                elsif value.respond_to?(:cache_key)
                        map_key(value.cache_key)
                else
                        raise ArgumentError.new("Invalid cache key: #{value.class}")
                end
        end
end