Class: CC::Analyzer::Engine

Inherits:
Object
  • Object
show all
Defined in:
lib/cc/analyzer/engine.rb

Constant Summary collapse

EngineFailure = 
Class.new(StandardError)
EngineTimeout = 
Class.new(StandardError)
DEFAULT_MEMORY_LIMIT = 
512_000_000.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, metadata, code_path, config, label) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/cc/analyzer/engine.rb', line 13

def initialize(name, metadata, code_path, config, label)
  @name = name
  @metadata = metadata
  @code_path = code_path
  @config = config
  @label = label.to_s
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/cc/analyzer/engine.rb', line 9

def name
  @name
end

Instance Method Details

#run(stdout_io, container_listener) ⇒ Object 



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# File 'lib/cc/analyzer/engine.rb', line 21

def run(stdout_io, container_listener)
  composite_listener = CompositeContainerListener.new(
    container_listener,
    LoggingContainerListener.new(qualified_name, Analyzer.logger),
    StatsdContainerListener.new(qualified_name.tr(":", "."), Analyzer.statsd),
    RaisingContainerListener.new(qualified_name, EngineFailure, EngineTimeout),
  )

  container = Container.new(
    image: @metadata["image"],
    command: @metadata["command"],
    name: container_name,
    listener: composite_listener,
  )

  container.on_output("\0") do |raw_output|
    CLI.debug("#{qualified_name} engine output: #{raw_output.strip}")
    output = EngineOutput.new(raw_output)

    unless output.valid?
      stdout_io.failed("#{qualified_name} produced invalid output: #{output.error[:message]}")
      container.stop
    end

    unless output_filter.filter?(output)
      stdout_io.write(output.to_json) || container.stop
    end
  end

  write_config_file
  CLI.debug("#{qualified_name} engine config: #{config_file.read}")
  container.run(container_options).tap do |result|
    CLI.debug("#{qualified_name} engine stderr: #{result.stderr}")
  end
rescue Container::ImageRequired
  # Provide a clearer message given the context we have
  message = "Unable to find an image for #{qualified_name}."
  message << " Available channels: #{@metadata["channels"].keys.inspect}."
  raise Container::ImageRequired, message
ensure
  delete_config_file
end