Class: Procmon::Process

Inherits:
Object
  • Object
show all
Defined in:
lib/procmon/process.rb

Constant Summary collapse

CONFIGURABLE_ATTRIBUTES = 
[
  :pid_file,
  :pid_command,
  :pid
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, checks, options = {}) ⇒ Process

Returns a new instance of Process.



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# File 'lib/procmon/process.rb', line 11

def initialize(name, checks, options={})
  @name = name
  @checks = []

  CONFIGURABLE_ATTRIBUTES.each do |attribute_name|
    self.send("#{attribute_name}=", options[attribute_name]) if options.has_key?(attribute_name)
  end

  if @pid_command.nil? or @pid_command.empty?
    @pid_command = "pidof"
  end

  if @pid.nil?
    @pid = fetch_pid
  end

  checks.each do |name, opts|
    self.add_check(name, opts)
  end
end

Instance Attribute Details

#checks ⇒ Object

Returns the value of attribute checks.



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# File 'lib/procmon/process.rb', line 9

def checks
  @checks
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/procmon/process.rb', line 9

def name
  @name
end

Instance Method Details

#add_check(name, options) ⇒ Object 



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# File 'lib/procmon/process.rb', line 40

def add_check(name, options)
  self.checks << ProcessConditions[name].new(options)
end

#perform_actions(check) ⇒ Object 



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# File 'lib/procmon/process.rb', line 44

def perform_actions(check)
  return if check.actions.nil? or check.actions.empty?

  check.actions.each do |action|
    if action.kind_of?(Proc)
      action.call(self, check)
    elsif action.kind_of?(Class) && action.respond_to?('notify')
      notification = ProcessNotification.new(self, check)
      action.notify(notification)
    else
      warn "Don't know what to do for #{action}."
    end
  end
end

#run_checks ⇒ Object 



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# File 'lib/procmon/process.rb', line 32

def run_checks
  @checks.each do |check|
    value = check.run(pid)
    condition_met = check.check(value)
    perform_actions(check) if condition_met
  end
end