Class: VagrantPlugins::ProviderLibvirt::Action::ReadState

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-libvirt/action/read_state.rb

Overview

This action reads the state of the machine and puts it in the ‘:machine_state_id` key in the environment.

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ ReadState

Returns a new instance of ReadState.



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# File 'lib/vagrant-libvirt/action/read_state.rb', line 9

def initialize(app, env)
  @app    = app
  @logger = Log4r::Logger.new('vagrant_libvirt::action::read_state')
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-libvirt/action/read_state.rb', line 14

def call(env)
  env[:machine_state_id] = read_state(env[:libvirt_compute], env[:machine])
  @app.call(env)
end

#read_state(libvirt, machine) ⇒ Object 



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# File 'lib/vagrant-libvirt/action/read_state.rb', line 19

def read_state(libvirt, machine)
  return :not_created if machine.id.nil?

  begin
    server = libvirt.servers.get(machine.id)
  rescue Libvirt::RetrieveError => e
    server = nil
    @logger.debug('Machine not found #{e}.')
  end
  # Find the machine
  begin
    server = libvirt.servers.get(machine.id)
    if server.nil? || [:'shutting-down', :terminated].include?(server.state.to_sym)
      # The machine can't be found
      @logger.info('Machine shutting down or terminated, assuming it got destroyed.')
      machine.id = nil
      return :not_created
    end
  rescue Libvirt::RetrieveError => e
    if e.libvirt_code == ProviderLibvirt::Util::ErrorCodes::VIR_ERR_NO_DOMAIN
      @logger.info("Machine #{machine.id} not found.")
      machine.id = nil
      return :not_created
    else
      raise e
    end
  end

  # Return the state
  return server.state.to_sym
end