Class: Amazon::WebServices::Util::FilterProxy

Inherits:
Object
  • Object
show all
Defined in:
lib/amazon/webservices/util/filter_proxy.rb

Overview

Filter proxy is a class that can filter argument input before passing onto a proxy object

Usage

Initialize with standard argument block, pass the class or pre-initialized object as the :FilterProxy parameter. All parameters will be passed along to the contructor of the passed class. FilterProxy exposes a FilterChain object, with all the magic which that class provides.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ FilterProxy

Returns a new instance of FilterProxy.



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# File 'lib/amazon/webservices/util/filter_proxy.rb', line 19

def initialize(args)
  @filter_chain = Amazon::Util::FilterChain.new
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'lib/amazon/webservices/util/filter_proxy.rb', line 35

def method_missing(method, *args)
  @filter_chain.execute(method, args) { |method,args|
    @proxy.send(method,*args)
  }
end

Instance Attribute Details

#filter_chain ⇒ Object

Returns the value of attribute filter_chain.



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# File 'lib/amazon/webservices/util/filter_proxy.rb', line 17

def filter_chain
  @filter_chain
end

Instance Method Details

#configure(args) ⇒ Object 



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# File 'lib/amazon/webservices/util/filter_proxy.rb', line 23

def configure(args)
  @proxy = case args[:FilterProxy]
    when Class
      args[:FilterProxy].new( args )
    when nil
      raise "No FilterProxy or DefaultOverride defined!" unless args[:DefaultOverride].is_a? Proc
      args[:DefaultOverride].call( args )
    else
      args[:FilterProxy]
    end
end