Module: Dunlop::TargetFileModel

Extended by:
ActiveSupport::Concern, Memoist
Included in:
TargetFile
Defined in:
app/models/dunlop/target_file_model.rb

Defined Under Namespace

Modules: ClassMethods Classes: GenericBuilder

Instance Method Summary collapse

Instance Method Details

#attach_target_file ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 84

def attach_target_file
  %x[cp #{Shellwords.escape(working_file.path)} #{Shellwords.escape(local_target_filename)}]
  self.original_file = File.open(local_target_filename,'r')
  self.save!
ensure
  FileUtils.rm_f(local_target_filename)
end

#builder ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 68

def builder
  builder_class.new(resource)
end

#date_number ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 137

def date_number
  Date.today.to_s(:number)
end

#duration ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 34

def duration
  if start_time and end_time
    end_time - start_time
  elsif start_time
    Time.zone.now - start_time
  else
    0
  end
end

#execute_generation_process ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 126

def execute_generation_process
  with_nested_logger_and_catch_failed do
    scheduled! unless scheduled?
    generating!
    generate_and_post_process_file
    completed!
  end
  #FIXME: save to ensure set_end_time is presisted
  save!
end

#file_size ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 113

def file_size
  File.size(working_file.path)
end

#generate_and_post_process_file ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 44

def generate_and_post_process_file
  self.working_file = new_working_file
  generate_file
  post_process_file
  attach_target_file
ensure
  working_file.close! rescue SystemCallError # container permission issue
end

#generate_file ⇒ Object

Implement in Subclass. Example:

CsvBuilder::BladiBla.new(resource).data



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# File 'app/models/dunlop/target_file_model.rb', line 64

def generate_file
  working_file.puts builder.data
end

#gzip_file ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 102

def gzip_file
  local_working_file = new_working_file
  Dunlop::FileZip.gzip(working_file.path,local_working_file.path)
  working_file.unlink rescue SystemCallError # container permission issue
  self.working_file = local_working_file
end

#gzip_file? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/dunlop/target_file_model.rb', line 98

def gzip_file?
  false #override in subclass
end

#line_count ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 109

def line_count
  %x[wc -l #{Shellwords.escape(working_file.path)}].to_i
end

#local_target_filename ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 53

def local_target_filename
  result = File.join(Rails.application.config.working_path, target_basename)
  gzip_file? ? result + ".gz" : result
end

#new_working_file ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 92

def new_working_file
  local_working_file = Tempfile.new("target_file", Rails.application.config.working_path)
  FileUtils.chmod(0666, local_working_file.path)
  local_working_file
end

#post_process_file ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 75

def post_process_file
  self.working_file.close
  self.number_of_records = line_count
  self.number_of_records -= 1 if builder.headers.present?
  gzip_file if gzip_file?
  self.size = file_size
  self.save!
end

#prepare_working_file_for_sql_generation ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 121

def prepare_working_file_for_sql_generation
  working_file.close
  FileUtils.rm_f(working_file.path)
end

#resource ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 72

def resource
end

#set_end_time ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 30

def set_end_time
  self.end_time = Time.zone.now
end

#set_start_time ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 26

def set_start_time
  self.start_time = Time.zone.now
end

#sql_template_path ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 117

def sql_template_path
  Rails.root.join("app/models/target_file/sql_templates")
end

#target_basename ⇒ Object 



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# File 'app/models/dunlop/target_file_model.rb', line 58

def target_basename
  "#{self.class.name.demodulize.underscore}-#{date_number}.csv"
end