Class: DataCollector::Input

Inherits:
Object
  • Object
show all
Defined in:
lib/data_collector/input.rb,
lib/data_collector/input/dir.rb,
lib/data_collector/input/rpc.rb,
lib/data_collector/input/queue.rb,
lib/data_collector/input/generic.rb

Defined Under Namespace

Classes: Dir, Generic, Queue, Rpc

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Input

Returns a new instance of Input.



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# File 'lib/data_collector/input.rb', line 26

def initialize
  @logger = Logger.new(STDOUT)
end

Instance Attribute Details

#raw ⇒ Object (readonly)

Returns the value of attribute raw.



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# File 'lib/data_collector/input.rb', line 24

def raw
  @raw
end

Instance Method Details

#from_uri(source, options = {}, &block) ⇒ Object 



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# File 'lib/data_collector/input.rb', line 30

def from_uri(source, options = {}, &block)
  block_consumed = false
  data = nil
  if source.is_a?(StringIO)
    data = from_stringio(source, options)
  else
    source = CGI.unescapeHTML(source)
    @logger.info("Reading #{source}")
    raise DataCollector::Error, 'from_uri expects a scheme like file:// of https://' unless source =~ /:\/\//

    scheme, path = source.split('://')
    source = "#{scheme}://#{URI.encode_www_form_component(path)}"
    uri = URI(source)
    begin
      case uri.scheme
      when 'http'
        data = from_http(uri, options)
      when 'https'
        data = from_https(uri, options)
      when 'file'
        absolute_path = File.absolute_path("#{URI.decode_www_form_component("#{uri.host}#{uri.path}")}")
        if File.directory?(absolute_path)
          return from_dir(uri, options)
        else
          if block_given?
            data = from_file(uri, options, &block)
            block_consumed = true if data.is_a?(TrueClass)
          else
            data = from_file(uri, options)
          end
        end
      when /amqp/
        if uri.scheme =~ /^rpc/
          data = from_rpc(uri, options)
        else
          data = from_queue(uri, options)
        end
      else
        raise "Do not know how to process #{source}"
      end

    end
  end
  data = data.nil? ? 'no data found' : data

  if block_given? && !block_consumed
    yield data
  else
    data
  end
rescue DataCollector::InputError => e
  @logger.error(e.message)
  raise e
rescue DataCollector::Error => e
  @logger.error(e.message)
  nil
rescue StandardError => e
  @logger.error(e.message)
  puts e.backtrace.join("\n")
  nil
end