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job_template.rb
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Sun, May 18, 1:13 AM

job_template.rb
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# JobTemplate class is a helper class that enables us to configure Bacula job
# configurations, without messing with Bacula's native models (Job).
# It has a unique:
#
# * host
# * fileset
# * schedule
class JobTemplate < ActiveRecord::Base
enum job_type: { backup: 0, restore: 1, verify: 2, admin: 3 }
belongs_to :host
belongs_to :fileset
belongs_to :schedule
validates :name, :fileset_id, presence: true
validates :schedule_id, presence: true, unless: :restore?
validates :name, uniqueness: { scope: :host }
validates_with NameValidator
before_save :set_job_type
after_save :notify_host
scope :enabled, -> { where(enabled: true) }
# Constructs an array where each element is a line for the Job's bacula config
#
# @return [Array]
def to_bacula_config_array
['Job {'] +
options_array.map { |x| " #{x}" } +
job_settings.map { |k,v| " #{k.capitalize} = #{v}" } +
['}']
end
# Fetches the Job's priority
def priority
job_settings[:priority]
end
# Helper method for the job template's enabled status
def enabled_human
enabled? ? 'yes' : 'no'
end
# Helper method for the job template's schedule name
#
# @return [String] The schedule's name or nothing
def schedule_human
schedule.present? ? schedule.name : '-'
end
# Generates a name that will be used for the configuration file.
# It is the name that will be sent to Bacula through the configuration
# files.
#
# @return [String]
def name_for_config
"#{host.name} #{name}"
end
# Sends a hot backup request to Bacula via BaculaHandler
def backup_now
return false if not (enabled? && baculized? && backup?)
host.backup_now(name)
end
private
def name_format
unless name =~ /^[a-zA-Z0-1\.-_ ]+$/
self.errors.add(:name, :format)
end
end
def notify_host
host.recalculate
end
# Sets the default job_type as backup
def set_job_type
self.job_type = :backup if job_type.nil?
end
def options_array
result = [
"Name = \"#{name_for_config}\"",
"Enabled = #{enabled_human}",
"FileSet = \"#{fileset.name_for_config}\"",
"Client = \"#{host.name}\"",
"Type = \"#{job_type.capitalize}\"",
"Schedule = \"#{schedule.name_for_config}\""
]
if client_before_run_file.present?
result += ["Client Run Before Job = \"#{client_before_run_file}\""]
end
if client_after_run_file.present?
result += ["Client Run After Job = \"#{client_after_run_file}\""]
end
result
end
# Fetches and memoizes the general configuration settings for Jobs
#
# @see ConfigurationSetting.current_job_settings
# @return [Hash] containing the settings
def job_settings
@job_settings ||= ConfigurationSetting.current_job_settings
end
end

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