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lame ruby kv store
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require 'msgpack' | |
module RubyKV | |
class Data | |
attr_reader :data_dir, :name | |
def initialize(name, data_dir) | |
@name = name | |
@data_dir = data_dir | |
@store = {} | |
end | |
def get(key) | |
@store[key] | |
end | |
def set(key, value) | |
if @store.has_key?(key) | |
puts "Overwritting existing key: #{key}" | |
end | |
@store[key] = value | |
end | |
def delete(key) | |
@store.delete key | |
end | |
def keys | |
@store.keys | |
end | |
def save | |
begin | |
File.open("#{@data_dir}/#{@name}.mpk", 'w'){|f| f.write(@store.to_msgpack) } | |
puts "Database saved!" | |
rescue Exception => e | |
puts "Error saving database: #{e}" | |
end | |
end | |
def load | |
begin | |
data = File.open("#{@data_dir}/#{@name}.mpk", 'r') | |
@store = MessagePack.unpack data.read | |
data.close | |
puts "Database loaded" | |
rescue Exception => e | |
puts "Error loading database: #{e}" | |
end | |
end | |
end | |
end | |
# @foo = RubyKV::Data.new "mystore", "/tmp/" | |
# 1000.times do |n| | |
# @foo.set "key_#{n}", "data_#{n}" | |
# end | |
# @foo.save | |
# @foo = RubyKV::Data.new "mystore", "/tmp/" | |
# @foo | |
# @foo.load | |
# @foo |
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