Jruby中的'require'宝石错误

时间:2012-04-05 18:48:47

标签: jruby

我在ruby 1.8中运行Jruby 1.6.7

我可以安装gem:https://github.com/consti/tupalo-kdtree

我有以下代码:

require 'kdtree'
require 'benchmark'



  def setup_tree(len)
    @points = (0...len).map { |i| [rand_coord, rand_coord, i ] }
    @kdtree = KDTree.new(@points)
  end

  def distance(a, b)
    x, y = a[0] - b[0], a[1] - b[1]
    x * x + y * y
  end

  def rand_coord
    rand(0) * 10 - 5
  end





  def test_nearestk

    pt = []
    @list = []
    20000.times do
      pt = [rand_coord, rand_coord]
     # kdtree search
      @list << @kdtree.nearest(pt[0],pt[1])     #puts pt

      end
       puts "Points from search #{@list.size}"
       puts "Points in graph #{@kdsize}"

  end
   @kdsize = 50000 
   setup_tree(@kdsize)
Benchmark.bm do |x| 
  x.report do
test_nearestk
end
end

然而,当我在Jruby中运行时 - 我收到错误

LoadError: no such file to load -- kdtree
  require at org/jruby/RubyKernel.java:982
  require at /home/charlie/.rvm/rubies/jruby-head/lib/ruby/shared/rubygems/custom_require.rb:36
   (root) at newtest.rb:2

它奇怪,因为它说它甚至找不到kdtree - 当我知道它在那里 - 安装了宝石。我已经清理了gemset并在RVM下创建了一个新的但仍然是同样的错误。在jruby下有“不同”的“需要”方式吗?或者还有其他错误吗?

1 个答案:

答案 0 :(得分:1)

将其添加到顶部

require 'rubygems'