Module: Tengine::Job::DslLoader

Includes:
DslEvaluator
Defined in:
lib/tengine/job/dsl_loader.rb

Overview

ジョブDSLをロードする際に使用される語彙に関するメソッドを定義するモジュール

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.loading_template_block_store ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 9

def loading_template_block_store
  @loading_template_block_store ||= {}
end

.template_block_store ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 13

def template_block_store
  @template_block_store ||= {}
end

.template_block_store_key(job, name) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 17

def template_block_store_key(job, name)
  "#{job.root.id.to_s}/#{job.id.to_s}##{name}"
end

.update_loaded_blocks(loaded_root) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 21

def update_loaded_blocks(loaded_root)
  if loaded_root
    loading_template_block_store.each do |unsaved_job, (name, block)|
      loaded_job = loaded_root.vertex_by_name_path(unsaved_job.name_path)
      key = template_block_store_key(loaded_job, name)
      template_block_store[key] = block
    end
  else
    loading_template_block_store.each do |saved_job, (name, block)|
      key = template_block_store_key(saved_job, name)
      template_block_store[key] = block
    end
  end
  loading_template_block_store.clear
end

Instance Method Details

#auto_sequence ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 88

def auto_sequence
  @auto_sequence = true
end

#boot_jobs(*boot_job_names) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 92

def boot_jobs(*boot_job_names)
  @auto_sequence = false
  @boot_job_names = boot_job_names
end

#expansion(root_jobnet_name, options = {}) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 147

def expansion(root_jobnet_name, options = {})
  options = {
    :name => root_jobnet_name,
  }.update(options)
  result = __with_redirection__(options) do
    Tengine::Job::Expansion.new(options)
  end
  @jobnet.children << result
  result
end

#finally(&block) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 143

def finally(&block)
  jobnet("finally", :jobnet_type_key => :finally, &block)
end

#hadoop_job(name, options = {}) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 123

def hadoop_job(name, options = {})
  result = __with_redirection__(options) do
    Tengine::Job::JobnetTemplate.new(:name => name, :jobnet_type_key => :hadoop_job)
  end
  result.children << start  = Tengine::Job::Start.new
  result.children << fork   = Tengine::Job::Fork.new
  result.children << map    = Tengine::Job::JobnetTemplate.new(:name => "Map"   , :jobnet_type_key => :map_phase   )
  result.children << reduce = Tengine::Job::JobnetTemplate.new(:name => "Reduce", :jobnet_type_key => :reduce_phase)
  result.children << join   = Tengine::Job::Join.new
  result.children << _end   = Tengine::Job::End.new
  result.edges.new(:origin_id => start.id , :destination_id => fork.id  )
  result.edges.new(:origin_id => fork.id  , :destination_id => map.id   )
  result.edges.new(:origin_id => fork.id  , :destination_id => reduce.id)
  result.edges.new(:origin_id => map.id   , :destination_id => join.id  )
  result.edges.new(:origin_id => reduce.id, :destination_id => join.id  )
  result.edges.new(:origin_id => join.id  , :destination_id => _end.id  )
  @jobnet.children << result
  result
end

#hadoop_job_run(name, *args, &block) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 116

def hadoop_job_run(name, *args, &block)
  script, description, options = __parse_job_args__(name, args)
  options[:script] = script
  options[:jobnet_type_key] = :hadoop_job_run
  jobnet(name, description, options, &block)
end

#job(name, *args) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 97

def job(name, *args)
  script, description, options = __parse_job_args__(name, args)
  options[:description] = options.delete(:caption) if options[:caption]
  options = {
    :name => name,
    :description => description,
    :script => script
  }.update(options)
  preparation = options.delete(:preparation)
  result = __with_redirection__(options) do
    Tengine::Job::JobnetTemplate.new(options)
  end
  @jobnet.children << result
  if preparation
    Tengine::Job::DslLoader.loading_template_block_store[result] = [:preparation, preparation]
  end
  result
end

#jobnet(name, *args, &block) ⇒ Object 



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# File 'lib/tengine/job/dsl_loader.rb', line 39

def jobnet(name, *args, &block)
  options = args.extract_options!
  options[:description] = options.delete(:caption) if options[:caption]
  options = {
    :name => name,
    :description => args.first || name,
  }.update(options)
  auto_sequence = options.delete(:auto_sequence)
  result = __with_redirection__(options) do
    if @jobnet.nil?
      klass = Tengine::Job::RootJobnetTemplate
      options[:dsl_version] = config.dsl_version
      path, lineno = *block.source_location
      options[:dsl_filepath] = config.relative_path_from_dsl_dir(path)
      options[:dsl_lineno] = lineno.to_i
    else
      klass = Tengine::Job::JobnetTemplate
    end
    klass.new(options)
  end
  result.with_start
  @jobnet.children << result if @jobnet
  if result.parent.nil?
    if duplicated = result.find_duplication
      if (duplicated.dsl_filepath != result.dsl_filepath) ||
          (duplicated.dsl_lineno != result.dsl_lineno)
        raise Tengine::Job::DslError, "2 jobnet named #{name.inspect} found at #{duplicated.dsl_filepath}:#{duplicated.dsl_lineno} and #{result.dsl_filepath}:#{result.dsl_lineno}"
      end
    end
  end

  __stack_instance_variable__(:@auto_sequence,  auto_sequence || @auto_sequence) do
    __stack_instance_variable__(:@boot_job_names,  []) do
      __stack_instance_variable__(:@redirections,  []) do
        __stack_instance_variable__(:@jobnet, result, &block)
        result.build_edges(@auto_sequence, @boot_job_names, @redirections)
      end
    end
  end
  if result.parent.nil?
    loaded = result.find_duplication
    result.save! unless loaded
    Tengine::Job::DslLoader.update_loaded_blocks(loaded)
    loaded || result
  else
    result
  end
end