构建数据结构-数组的哈希的哈希的哈希

Question

本周在工作中，我遇到了解析特定文件格式的挑战包含按不同站点、区域和区域分类的IP范围地区。基本上，我需要一个脚本将所有这些位置信息加载到数据结构，这样我就可以很容易地获得所有的ip用于以后的转换的站点、区域或区域。

<>之前所需数据结构:data[Region][Area][Site] -> ip地址哈希数组之前

我想知道函数"processLocations"是否可以优化的，或者如果有更简单的方法来实现所需的数据结构。特别是在创建"数组的哈希的哈希的哈希"区域变量时。

希望这也可以帮助其他人在相同的情况下，所以这是一个我目前的工作副本:

require 'pp'
# Function that processes the content of the locations file and returns
the following structure:
#
# data[Region][Area][Site] -> IPs
#       Hash   Hash  Hash   Array
#
def processLocations (lines)
  sites = Hash.new{|h, k| h[k] = []} # HashOFArray
  area = Hash.new{|h,k| h[k]=Hash.new(&h.default_proc)} # HashOFHash
  region = Hash.new{|h,k| h[k]=Hash.new(&h.default_proc)} # HashOFHash
  lines.each do |line|
    next if lines =~ /^#.*/
    # Process IPs range section
    if line =~ /(.*)=([d|-|.]+)/
      #puts "IP: #{$1} - #{$2}"
      sites[$1.chomp.capitalize] << $2
    end
    # Process area section
    if line =~ /(.*).area=(.*)/i
      #puts "Area: #{$1} - #{$2}"
      if sites.has_key?($1.chomp.capitalize)
        if (area.has_key?($2.chomp.capitalize) &
area[$2.chomp.capitalize].has_key?($1.chomp.capitalize))
          # The hash exists
          #puts "Adding to an existing hash key more IPs elements to the
array"
          area[$2.chomp.capitalize][$1.chomp.capitalize] <<
sites[$1.chomp.capitalize]
       else
          # The hash does not exist
          #puts "Adding new hash key with new array"
          area[$2.chomp.capitalize][$1.chomp.capitalize] =
sites[$1.chomp.capitalize]
        end
        # Clean site hash
        sites = Hash.new{|h, k| h[k] = []} # HashOFArray
      end
    end
    # Process region section
    if line =~ /(.*).region=(.*)/i
      #puts "Region: #{$1} - #{$2}"
      if area.has_key?($1.chomp.capitalize)
        tmp = Hash.new
        tmp = area.dup
        region[$2.chomp.capitalize][$1.chomp.capitalize] =
tmp[$1.chomp.capitalize]
      end
    end
  end
  return region
end
##############
#  MAIN
f = File.open(DATA)
 lines = f.readlines
f.close
data = processLocations(lines)
puts "+data---------------------------------------------------------"
pp data
puts "+data['Asia']-------------------------------------------------"
pp data['Asia']
puts "+data['Asia']['Australia']------------------------------------"
pp data['Asia']['Australia']
puts "+data['Europe-middle east-africa']['France']['Paris']---------"
pp data['Europe-middle east-africa']['France']['Paris']

__END__
Alexandria (ALH)=192.168.6.0-192.168.6.127
Alexandria (ALH).area=Australia
Australia.region=Asia
Altona=192.168.1.192-192.168.1.255
Altona=192.168.2.192-192.168.2.255
Altona.area=Australia
TOKYO VPN=192.168.3.192-192.168.3.255
TOKYO VPN.area=JAPAN
JAPAN.region=Asia
Paris=192.168.4.192-192.168.4.255
Paris.area=France
Rennes=192.168.5.192-192.168.5.255
Rennes.area=France
France.region=EUROPE-MIDDLE EAST-AFRICA

示例输出:

# ruby ruby_help.rb
+data---------------------------------------------------------
{"Asia"=>
  {"Australia"=>
    {"Alexandria (alh)"=>["192.168.6.0-192.168.6.127"],
     "Altona"=>["192.168.1.192-192.168.1.255",
"192.168.2.192-192.168.2.255"]},
   "Japan"=>{"Tokyo vpn"=>["192.168.3.192-192.168.3.255"]}},
 "Europe-middle east-africa"=>
  {"France"=>
    {"Paris"=>["192.168.4.192-192.168.4.255"],
     "Rennes"=>["192.168.5.192-192.168.5.255"]}}}
+data['Asia']-------------------------------------------------
{"Australia"=>
  {"Alexandria (alh)"=>["192.168.6.0-192.168.6.127"],
   "Altona"=>["192.168.1.192-192.168.1.255",
"192.168.2.192-192.168.2.255"]},
 "Japan"=>{"Tokyo vpn"=>["192.168.3.192-192.168.3.255"]}}
+data['Asia']['Australia']------------------------------------
{"Alexandria (alh)"=>["192.168.6.0-192.168.6.127"],
 "Altona"=>["192.168.1.192-192.168.1.255",
"192.168.2.192-192.168.2.255"]}
+data['Europe-middle east-africa']['France']['Paris']---------
["192.168.4.192-192.168.4.255"]

对任何建议提前表示敬意和感谢，

Sebastian耶佩斯

Answer 1

我同意Mu的观点，你可以建立一些类，但我认为这应该工作:

def processLocations (lines)
  sites     = Hash.new{|h, k| h[k] = []}
  areas     = Hash.new{|h, k| h[k] = {}}
  regions   = Hash.new{|h, k| h[k] = {}}
  lines.each do |line|
  case line
    # Process IPs range section
    when /(.*)=([d|-|.]+)/
      sites[$1.chomp.capitalize] << $2
    # Process area section
    when /(.*).area=(.*)/i
      site_key, area = $1.chomp.capitalize, areas[$2.chomp.capitalize]
      area[site_key] = sites[site_key]
    # Process region section
    when /(.*).region=(.*)/i
      area_key, region = $1.chomp.capitalize, regions[$2.chomp.capitalize]
      region[area_key] = areas[area_key]
    when /^#.*/ # do nothing
    else
      # error?
    end
  end
  regions
end