Class: DynamoAutoscale::ScaleReport

Inherits:
Object
  • Object
show all
Includes:
Logger
Defined in:
lib/dynamo-autoscale/scale_report.rb

Constant Summary collapse

TEMPLATE = 
File.join(DynamoAutoscale.root, 'templates', 'scale_report_email.erb')

Instance Method Summary collapse

Methods included from Logger

included, logger, #logger, logger=

Constructor Details

#initialize(table) ⇒ ScaleReport 



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# File 'lib/dynamo-autoscale/scale_report.rb', line 7

def initialize table
  @table = table
  @erb = ERB.new(File.read(TEMPLATE))

  if DynamoAutoscale.config[:dry_run]
    @enabled = false
  elsif config = DynamoAutoscale.config[:email]
    @enabled = true
    Pony.options = config
  else
    @enabled = false
  end
end

Instance Method Details

#email_content ⇒ Object 



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# File 'lib/dynamo-autoscale/scale_report.rb', line 25

def email_content
  @erb.result(binding)
end

#email_subject ⇒ Object 



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# File 'lib/dynamo-autoscale/scale_report.rb', line 21

def email_subject
  "Scale event for #{@table.name}"
end

#send ⇒ Object 



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# File 'lib/dynamo-autoscale/scale_report.rb', line 29

def send
  return false unless @enabled

  result = Pony.mail({
    subject: email_subject,
    body:    email_content,
  })

  if result
    logger.info "[mailer] Mail sent successfully."
    result
  else
    logger.error "[mailer] Failed to send email. Result: #{result.inspect}"
    false
  end
rescue => e
  logger.error "[mailer] Encountered an error: #{e.class}:#{e.message}"
  false
end