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memory.rb
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memory.rb
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require 'hyperion'
require 'hyperion/key'
require 'hyperion/memory/helper'
module Hyperion
class Memory
def initialize(opts={})
@store = {}
end
def save(records)
records.map do |record|
key = Hyperion.new?(record) ? generate_key : record[:key]
record[:key] = key
store[key] = record
record
end
end
def find_by_key(key)
store[key]
end
def find(query)
records = store.values
records = filter_kind(query.kind, records)
records = Helper.apply_filters(query.filters, records)
records = Helper.apply_sorts(query.sorts, records)
records = Helper.apply_offset(query.offset, records)
records = Helper.apply_limit(query.limit, records)
records
end
def delete_by_key(key)
store.delete(key)
nil
end
def delete(query)
records = find(query)
store.delete_if do |key, record|
records.include?(record)
end
nil
end
def count(query)
find(query).length
end
def pack_key(kind, key)
key
end
def unpack_key(kind, key)
key
end
private
attr_reader :store
def filter_kind(kind, records)
records.select do |record|
record[:kind] == kind
end
end
def generate_key
Hyperion::Key.generate_id
end
end
end