Class: MongoRequestLogger::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/mongo_request_logger/config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config = nil) ⇒ Config

Returns a new instance of Config.



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# File 'lib/mongo_request_logger/config.rb', line 9

def initialize(config=nil)
  @raw_config = {}
  @params = {}
  @namespace = nil
  load_config(config) unless config.nil?
end

Instance Attribute Details

#namespace ⇒ Object

Returns the value of attribute namespace.



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# File 'lib/mongo_request_logger/config.rb', line 7

def namespace
  @namespace
end

#params ⇒ Object

Returns the value of attribute params.



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# File 'lib/mongo_request_logger/config.rb', line 6

def params
  @params
end

#raw_config ⇒ Object

Returns the value of attribute raw_config.



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# File 'lib/mongo_request_logger/config.rb', line 5

def raw_config
  @raw_config
end

Instance Method Details

#[](param) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 73

def [](param)
  get(param)
end

#[]=(param, value) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 77

def []=(param, value)
  @params[param.to_s] = value
end

#create_accessor_for(key) ⇒ Object

Use instance_eval/class_eval because they’re actually more efficient than define_method{} stackoverflow.com/questions/185947/ruby-definemethod-vs-def bmorearty.wordpress.com/2009/01/09/fun-with-rubys-instance_eval-and-class_eval/



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# File 'lib/mongo_request_logger/config.rb', line 94

def create_accessor_for(key)
  key = key.to_s
  return unless key =~ /^[\w_]+$/  # could have "some-setting:" which blows up eval

  self.class.class_eval "    def \#{key}\n      return @params[\"\#{key}\"]\n    end\n\n    def \#{key}= value\n      @params[\"\#{key}\"] = value\n    end\n  EndEval\nend\n"

#create_accessors! ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 85

def create_accessors!
  @params.each do |key,val|
    create_accessor_for(key)
  end
end

#deep_merge(a, b) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 37

def deep_merge(a, b)
  if a.is_a? Hash and b.is_a? Hash
    r = a.dup
    for k, v in b
      r[k] = deep_merge(a[k], v)
    end
    r
  elsif b.is_a? Hash
    b.dup
  else
    b
  end
end

#get(param) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 69

def get(param)
  @params[param.to_s]
end

#has?(param) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongo_request_logger/config.rb', line 65

def has?(param)
  @params.key?(param.to_s)
end

#load_config(config) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 51

def load_config(config)
  @raw_config = deep_merge(@raw_config, config)
  @params = {}
  @raw_config.each { |k, v|
    if v.is_a? Hash
      @params[k] = self.class.new(v)
    else
      @params[k] = v
    end
  }

  create_accessors!
end

#load_file(file) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 28

def load_file(file)
  begin
    hash = YAML::load(IO.read(file))
  rescue => e
    hash = nil
  end
  load_config(hash) unless hash.nil?
end

#namespaced(namespace) ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 16

def namespaced(namespace)
  config = deep_merge(@raw_config['common'], @raw_config[namespace])
  ac = self.class.new(config)
  ac.namespace = namespace
  ac
end

#namespaces ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 24

def namespaces
  @raw_config.keys - %w(common)
end

#with_indifferent_access ⇒ Object 



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# File 'lib/mongo_request_logger/config.rb', line 81

def with_indifferent_access
  self
end