Module: Hutch::Config

Defined in:
lib/hutch/config.rb

Class Method Summary collapse

Class Method Details

.check_attr(attr) ⇒ Object 



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# File 'lib/hutch/config.rb', line 82

def self.check_attr(attr)
  unless user_config.key?(attr)
    raise UnknownAttributeError, "#{attr} is not a valid config attribute"
  end
end

.convert_value(attr, value) ⇒ Object 



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# File 'lib/hutch/config.rb', line 103

def self.convert_value(attr, value)
  case attr
  when "tracer"
    Kernel.const_get(value)
  else
    value
  end
end

.get(attr) ⇒ Object Also known as: [] 



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# File 'lib/hutch/config.rb', line 67

def self.get(attr)
  check_attr(attr)
  user_config[attr]
end

.initialize(params = {}) ⇒ Object 



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# File 'lib/hutch/config.rb', line 11

def self.initialize(params = {})
  @config = {
    mq_host: 'localhost',
    mq_port: 5672,
    mq_exchange: 'hutch',  # TODO: should this be required?
    mq_exchange_options: {},
    mq_vhost: '/',
    mq_tls: false,
    mq_tls_cert: nil,
    mq_tls_key: nil,
    mq_tls_ca_certificates: nil,
    mq_verify_peer: true,
    mq_username: 'guest',
    mq_password: 'guest',
    mq_api_host: 'localhost',
    mq_api_port: 15672,
    mq_api_ssl: false,
    heartbeat: 30,
    # placeholder, allows specifying connection parameters
    # as a URI.
    uri: nil,
    log_level: Logger::INFO,
    require_paths: [],
    autoload_rails: true,
    error_handlers: [Hutch::ErrorHandlers::Logger.new],
    # note that this is not a list, it is a chain of responsibility
    # that will fall back to "nack unconditionally"
    error_acknowledgements: [],
    tracer: Hutch::Tracers::NullTracer,
    namespace: nil,
    daemonise: false,
    pidfile: nil,
    channel_prefetch: 0,
    # enables publisher confirms, leaves it up to the app
    # how they are tracked
    publisher_confirms: false,
    # like `publisher_confirms` above but also
    # forces waiting for a confirm for every publish
    force_publisher_confirms: false,
    # Heroku needs > 10. MK.
    connection_timeout: 11,
    read_timeout: 11,
    write_timeout: 11,
    enable_http_api_use: true,
    # Number of seconds that a running consumer is given
    # to finish its job when gracefully exiting Hutch, before
    # it's killed.
    graceful_exit_timeout: 11,
    client_logger: nil,

    consumer_pool_size: 1,

    serializer: Hutch::Serializers::JSON,
  }.merge(params)
end

.load_from_file(file) ⇒ Object 



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# File 'lib/hutch/config.rb', line 97

def self.load_from_file(file)
  YAML.load(ERB.new(File.read(file)).result).each do |attr, value|
    Hutch::Config.send("#{attr}=", convert_value(attr, value))
  end
end

.method_missing(method, *args, &block) ⇒ Object 



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# File 'lib/hutch/config.rb', line 112

def self.method_missing(method, *args, &block)
  attr = method.to_s.sub(/=$/, '').to_sym
  return super unless user_config.key?(attr)

  if method =~ /=$/
    set(attr, args.first)
  else
    get(attr)
  end
end

.set(attr, value) ⇒ Object Also known as: []= 



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# File 'lib/hutch/config.rb', line 72

def self.set(attr, value)
  check_attr(attr)
  user_config[attr] = value
end

.to_hash ⇒ Object 



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# File 'lib/hutch/config.rb', line 93

def self.to_hash
  self.user_config
end

.user_config ⇒ Object 



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# File 'lib/hutch/config.rb', line 88

def self.user_config
  initialize unless @config
  @config
end