Question

我考虑将IronWorker用作一个项目，以便我可以轻松扩展它（预计流量高，有大量后台工作）。

为了保持干燥，我尝试使用继承来定义工作者，但我一直收到以下错误：

/usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- base_worker.rb (LoadError)
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /task/child_worker.rb:3:in `<top (required)>'
    from /task/runner.rb:344:in `require_relative'
    from /task/runner.rb:344:in `<main>'

这是基础工人类：

#  app/workers/base_worker.rb
require 'net/http'
require 'uri'
require 'json'

class BaseWorker < IronWorker::Base
  attr_accessor :params

  # The run method is what IronWorker calls to run your worker
  def run
    data = custom_run(params)
    common_post_process(data)
  end

   def custom_run(params)
     #to be overwritten in the child class 
   end    

   def common_post_process(data)
      # some common post processing => DRY
      ....
   end       
end

这是一个儿童班：

# app/workers/child_worker.rb 
require 'net/http'
require 'uri'
require 'base_worker.rb'

class ChildWorker  <  BaseWorker
  merge "base_worker.rb"

  def custom_run(params)
     #custom work
  end

end

有关如何解决此问题的任何想法？

Answer 1

我建议使用我们的下一代gem，iron_worker_ng：https://github.com/iron-io/iron_worker_ruby_ng。 iron_worker gem已被弃用。如果你想保持它与你拥有的风格相似，你的child_worker.rb可能如下所示：

require 'net/http'
require 'uri'
require_relative 'base_worker.rb'

class ChildWorker  <  BaseWorker

  def custom_run(params)
     #custom work
  end

end

# NG gem doesn't run anything in particular, so to run your method:
cw = ChildWorker.new
cw.custom_run(params)

在child_worker.worker文件中：

runtime 'ruby'

file 'base_worker.rb'
exec 'child_worker.rb'

然后将其上传到IronWorker：

iron_worker upload child_worker

然后你可以开始为它排队：

worker = IronWorkerNG::Client.new
worker.tasks.create("child_worker", params)

Answer 2

如果您使用iron_worker_ng，还可以定义run方法。 IronWorker运行时将调用此方法。您必须在.worker文件中指定类。

# child_worker.rb
class ChildWorker
  def run
    puts "doing the hard work"
  end
end

child_worker.worker文件：

# child_worker.worker
runtime 'ruby'
name 'ChildWorker'
exec 'child_worker.rb', 'ChildWorker'

使用iron_worker_ruby宝石时铁工人的继承

2 个答案: