Class: MonitorTypeDir

Inherits:
MonitorTypeThreshold show all
Defined in:
lib/monitor_type/dir.rb

Overview

A directory class for checking how many files are in a directory

Instance Method Summary collapse

Methods inherited from MonitorTypeThreshold

#check, #initialize, #process

Methods inherited from MonitorType

#alert, #initialize, #process, #run, #teardown

Constructor Details

This class inherits a constructor from MonitorTypeThreshold

Instance Method Details

#derived_value ⇒ Object 



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# File 'lib/monitor_type/dir.rb', line 38

def derived_value
  Dir.glob("#{@path}/*").length
end

#extract_params ⇒ Object

Extract parameters

Parameters:

  • path (String) —

    Path to directory to check



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# File 'lib/monitor_type/dir.rb', line 8

def extract_params
  if @params[:path].nil?
    string = "*** Dir parameter missing, path\n" \
             '*** :path => <path to directory to be monitored>'
    fail MonitorTypeParameterMissingError, string
  end
  @path = @params[:path]

  @context_sentence = "Checking number of files in, #{@path}"
end

#setup ⇒ Object 



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# File 'lib/monitor_type/dir.rb', line 19

def setup
  input_dir = Dir.new(@path)
  @path = input_dir.path
  @params[:dir] = input_dir

rescue Errno::ENOENT
  str = "***** Directory does not exist, #{@path}.\n" \
        "***** Create the directory, #{@path}, and try again.\n" \
        "***** eg, mkdir #{@path}"
  raise MonitorTypeExceptionHandled, str
rescue Errno::ENOTDIR
  str = '***** The specified path does not point to a ' \
        "directory, #{@path}.\n" \
        '***** Either repoint path to a directory, ' \
        "or remove, #{@path}, and create it as a directory.\n" \
        "***** eg, rm #{@path} && mkdir #{@path}"
  raise MonitorTypeExceptionHandled, str
end