From 7bfaf7e94eed64dbc1e534e2eee0f9e224e6f146 Mon Sep 17 00:00:00 2001
From: Steve Kemp <steve@steve.org.uk>
Date: Sat, 24 Nov 2012 14:40:03 +0000
Subject: Initial/stub implementation of a factory for generating alerting
objects.
---
lib/custodian/alertfactory.rb | 70 +++++++++++++++++++++++++++++++++++++++++++
lib/custodian/alerts.rb | 20 +++++++++++++
lib/custodian/alerts/mauve.rb | 34 +++++++++++++++++++++
lib/custodian/alerts/smtp.rb | 34 +++++++++++++++++++++
4 files changed, 158 insertions(+)
create mode 100644 lib/custodian/alertfactory.rb
create mode 100644 lib/custodian/alerts.rb
create mode 100644 lib/custodian/alerts/mauve.rb
create mode 100644 lib/custodian/alerts/smtp.rb
(limited to 'lib/custodian')
diff --git a/lib/custodian/alertfactory.rb b/lib/custodian/alertfactory.rb
new file mode 100644
index 0000000..f82706f
--- /dev/null
+++ b/lib/custodian/alertfactory.rb
@@ -0,0 +1,70 @@
+
+
+#
+#
+# Base class for custodian alerters.
+#
+# 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 subclasses we have.
+ #
+ @@subclasses = { }
+
+
+ #
+ # Create an alerter object, based upon the type
+ #
+ def self.create( alert_type, obj )
+
+ c = @@subclasses[alert_type]
+ if c
+ c.new( obj )
+ else
+ raise ArgumentError, "Bad alert type: '#{alert_type}'"
+ end
+ end
+
+
+ #
+ # Register a new test type - this must be called by our derived classes
+ #
+ def self.register_alert_type name
+ @@subclasses[name] = self
+ end
+
+
+ #
+ # Return an array of test-types we know about
+ #
+ # i.e. Derived classes that have registered themselves.
+ #
+ #
+ def self.known_alerters
+ @@subclasses
+ end
+
+
+
+ def raise
+ raise NoMethod, "This should be implemented in a derived class"
+ end
+
+
+
+ def clear
+ raise NoMethod, "This should be implemented in a derived class"
+ end
+ end
+
+end
diff --git a/lib/custodian/alerts.rb b/lib/custodian/alerts.rb
new file mode 100644
index 0000000..74d021b
--- /dev/null
+++ b/lib/custodian/alerts.rb
@@ -0,0 +1,20 @@
+#
+# This is just a helper which means that you'll only need to
+# update the list of requires in one-place if you add a new
+# protocol alert-type
+#
+
+
+#
+# The factory
+#
+require 'custodian/alertfactory'
+
+
+#
+# The individual alert-types.
+#
+require 'custodian/alerts/mauve'
+require 'custodian/alerts/smtp'
+
+
diff --git a/lib/custodian/alerts/mauve.rb b/lib/custodian/alerts/mauve.rb
new file mode 100644
index 0000000..c3e8a76
--- /dev/null
+++ b/lib/custodian/alerts/mauve.rb
@@ -0,0 +1,34 @@
+
+
+
+#
+# The Mauve-alerter.
+#
+module Custodian
+
+ module Alerter
+
+ class Mauve < AlertFactory
+
+ #
+ # The test this alerter cares about
+ #
+ attr_reader :test
+
+ #
+ # Constructor
+ #
+ def initialize( obj )
+ @test = obj
+ end
+
+
+
+ register_alert_type "mauve"
+
+
+
+
+ end
+ end
+end
diff --git a/lib/custodian/alerts/smtp.rb b/lib/custodian/alerts/smtp.rb
new file mode 100644
index 0000000..21ef791
--- /dev/null
+++ b/lib/custodian/alerts/smtp.rb
@@ -0,0 +1,34 @@
+
+
+
+#
+# The SMTP-alerter.
+#
+module Custodian
+
+ module Alerter
+
+ class SMTP < AlertFactory
+
+ #
+ # The test this alerter cares about
+ #
+ attr_reader :test
+
+ #
+ # Constructor
+ #
+ def initialize( obj )
+ @test = obj
+ end
+
+
+
+ register_alert_type "smtp"
+
+
+
+
+ end
+ end
+end
--
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