- make plugin statuses milestones instead. (LOGSTASH-1137)

The previous taxonomy confused users due to overloaded meanings of
  'beta' and 'experimental'.

lib/logstash/config/mixin.rb

@@ -172,13 +172,20 @@ module LogStash::Config::Mixin
       return true if @@status_notice_given
       docmsg = "For more information about plugin statuses, see http://logstash.net/docs/#{LOGSTASH_VERSION}/plugin-status "
       plugin_type = ancestors.find { |a| a.name =~ /::Base$/ }.config_name
+      log_data = { :type => plugin_type, :name => @config_name, :LOGSTASH_VERSION => LOGSTASH_VERSION }
       case @plugin_status
-        when "unsupported"; @logger.warn(I18n.t("logstash.plugin.unsupported", :type => plugin_type, :name => @config_name, :LOGSTASH_VERSION => LOGSTASH_VERSION))
+        when LogStash::Plugin::MILESTONE_0
-        when "experimental"; @logger.warn(I18n.t("logstash.plugin.experimental", :type => plugin_type, :name => @config_name, :LOGSTASH_VERSION => LOGSTASH_VERSION))
+          @logger.warn(I18n.t("logstash.plugin.milestone.0", log_data)
-        when "beta"; @logger.warn(I18n.t("logstash.plugin.beta", :type => plugin_type, :name => @config_name, :LOGSTASH_VERSION => LOGSTASH_VERSION))
+        when LogStash::PLugin::MILESTONE_1
-        when "stable"; # This is cool. Nothing worth logging.
+          @logger.warn(I18n.t("logstash.plugin.milestone.1", log_data)
-        when nil; raise "#{@config_name} must set a plugin_status. #{docmsg}"
+        when LogStash::PLugin::MILESTONE_2
-        else; raise "#{@config_name} set an invalid plugin status #{@plugin_status}. Valid values are unsupported, experimental, beta and stable. #{docmsg}"
+          @logger.warn(I18n.t("logstash.plugin.milestone.2", log_data)
+        when LogStash::PLugin::MILESTONE_3
+          # No message to log, this plugin is of good quality with tests, etc.
+        when nil
+          raise "#{@config_name} must set a plugin_status. #{docmsg}"
+        else
+          raise "#{@config_name} set an invalid plugin status #{@plugin_status}. Valid values are unsupported, experimental, beta and stable. #{docmsg}"
       end
       @@status_notice_given = true
       return true

lib/logstash/plugin.rb

@@ -7,6 +7,11 @@ class LogStash::Plugin
   attr_accessor :params
   attr_accessor :logger
 
+  MILESTONE_0 = "milestone 0"
+  MILESTONE_1 = "milestone 1"
+  MILESTONE_2 = "milestone 2"
+  MILESTONE_3 = "milestone 3"
+
   public
   def hash
     params.hash ^

locales/en.yml

@@ -34,19 +34,21 @@ en:
         Could not find any plugin type named '%{type}'. Check for typos.
         Valid plugin types are 'input' 'filter' and 'output'
     plugin:
-      unsupported: >-
+      milestone:
-        Using unsupported %{type} plugin '%{name}'. This plugin isn't well
+        0: >-
-        supported by the commnity and likely has no maintainer.
+          Using milestone 0 %{type} plugin '%{name}'. This plugin isn't well
-        For more information on plugin statuses, see
+          supported by the commnity and likely has no maintainer. For more
+          information on plugin statuses, see
           http://logstash.net/docs/%{LOGSTASH_VERSION}/plugin_status
-      experimental: >-
+        1: >-
-        Using experimental %{type} plugin '%{name}'. This plugin should work,
+          Using milestone 1 %{type} plugin '%{name}'. This plugin should work,
           but would benefit from use by folks like you. Please let us know if you
           find bugs or have suggestions on how to improve this plugin.  For more
           information on plugin statuses, see
           http://logstash.net/docs/%{LOGSTASH_VERSION}/plugin_status
-      beta: >-
+        2: >-
-        Using beta %{type} plugin '%{name}'.
+          Using milestone 2 %{type} plugin '%{name}'. This plugin should be
+          stable, but if you see strange behavior, please let us know!
           For more information on plugin statuses, see
           http://logstash.net/docs/%{LOGSTASH_VERSION}/plugin_status
     agent: