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require "logstash/namespace"
require "logstash/logging"
require "logstash/plugin"
require "logstash/config/mixin"

class LogStash::Filters::Base < LogStash::Plugin
  include LogStash::Config::Mixin

  config_name "filter"

  # The type to act on. If a type is given, then this filter will only
  # act on messages with the same type. See any input plugin's "type"
  # attribute for more.
  # Optional.
  config :type, :validate => :string, :default => ""

  # Only handle events with all of these tags.  Note that if you specify
  # a type, the event must also match that type.
  # Optional.
  config :tags, :validate => :array, :default => []

  # If this filter is successful, add arbitrary tags to the event.
  # Tags can be dynamic and include parts of the event using the %{field}
  # syntax. Example:
  #
  #     filter {
  #       myfilter {
  #         add_tag => [ "foo_%{somefield}" ]
  #       }
  #     }
  #
  # If the event has field "somefield" == "hello" this filter, on success,
  # would add a tag "foo_hello"
  config :add_tag, :validate => :array, :default => []

  # If this filter is successful, remove arbitrary tags from the event.
  # Tags can be dynamic and include parts of the event using the %{field}
  # syntax. Example: