Class: MOSAIK::Commands::Identify

Inherits:
MOSAIK::Command::Graph show all
Defined in:
lib/mosaik/commands/identify.rb

Overview

Identify microservice candidates

Instance Method Summary collapse

Instance Method Details

#call ⇒ Object 



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# File 'lib/mosaik/commands/identify.rb', line 38

def call
  info "Identifying microservice candidates (#{options.map { |k, v| "#{k}: #{v}" }.join(', ')})"

  # Reduce the graph
  Graph::Reducer
    .new(options, graph)
    .call

  RubyProf.start if options[:profile]

  # Track execution time
  time = Time.measure do
    # Identify microservice candidates
    Algorithms
      .const_get(options[:algorithm].camelize)
      .new(options, graph)
      .tap(&:validate)
      .call
  end

  if options[:profile]
    profile = RubyProf.stop

    printer = RubyProf::FlameGraphPrinter.new(profile)
    printer.print(File.open("profile.html", "w+"))

    info "Profiling information written to profile.html"
  end

  info "Executed algorithm in #{time} seconds"

  # Print the clusters
  graph.clusters.each_value do |cluster|
    debug "Cluster #{cluster.id}"
    cluster.vertices.each do |vertex|
      debug "  #{vertex.id}"
    end
  end

  # Write graph to file
  write_graph

  # Render graph visualization
  visualize_graph
end

#validate ⇒ Object

Raises:



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# File 'lib/mosaik/commands/identify.rb', line 26

def validate
  super

  raise OptionError, "input file not found: #{options[:input]}" unless File.exist? options[:input]
  raise OptionError, "unknown algorithm: #{options[:algorithm]}" unless options[:algorithm].in? ["louvain"]

  return unless options[:profile]

  require "ruby-prof"
  require "ruby-prof-flamegraph"
end