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|
#
#
# Base class for custodian notifiers.
#
# Each subclass will register themselves, via the call to 'register_alert_type'.
#
# This class is a factory that will return the correct derived class.
#
#
module Custodian
class AlertFactory
#
# The target for the alert.
#
# The meaning of the target is notifier-specific.
#
# In the case of the smtp-notifier the target is the
# email address to notify, for example.
#
attr_reader :target
#
# The global configuration settings object.
#
attr_reader :settings
#
# The subclasses we have.
#
@@subclasses = {}
#
# Create an notifier object, based upon name given to us.
#
# The "obj" here is the test-case that will be generating the
# raise/clear event.
#
def self.create(alert_type, obj)
raise ArgumentError, 'The type of notifier to create cannot be nil' if alert_type.nil?
raise ArgumentError, 'The type of notifier to create must be a string' unless alert_type.kind_of? String
c = @@subclasses[alert_type]
if c
c.new(obj)
else
raise ArgumentError, "Bad alert type: '#{alert_type}'"
end
end
#
# Register a new type of notifier - this must be called by our derived classes
#
def self.register_alert_type(name)
@@subclasses[name] = self
end
#
# Return the notifiers we know about.
#
# i.e. Derived classes that have registered themselves.
#
def self.known_alerters
@@subclasses
end
#
# Get the friendly-type of derived-classes.
#
def get_type
@@subclasses.each do |name, value|
if (value == self.class)
return name
end
end
nil
end
#
# Set the target for this alert.
#
def set_target(target)
@target = target
end
#
# Store a reference to the settings
#
def set_settings(obj)
@settings = obj
end
#
# Raise an alert.
#
def raise
puts 'NOP'
end
#
# Clear an alert.
#
def clear
puts 'NOP'
end
end
end
|
