Display current setting

app/controllers/fluentd/settings_controller.rb

@@ -15,4 +15,8 @@ class Fluentd::SettingsController < ApplicationController
     @fluentd.agent.restart if @fluentd.agent.running?
     redirect_to daemon_setting_path(@fluentd)
   end
+
+  def source_and_output
+    @config = Fluentd::Setting::Config.new(@fluentd.config_file)
+  end
 end

app/models/fluentd/setting/config.rb

@@ -0,0 +1,27 @@
+require 'fluent/config'
+
+class Fluentd
+  module Setting
+    class Config
+      attr_reader :config, :file
+
+      def initialize(config_file)
+        config = Fluent::Config.parse(IO.read(config_file), config_file, nil, true)
+        @config = config
+        @file = config_file
+      end
+
+      def sources
+        config.elements.find_all do |elm|
+          elm.name == "source"
+        end
+      end
+
+      def matches
+        config.elements.find_all do |elm|
+          elm.name == "match"
+        end
+      end
+    end
+  end
+end

app/views/fluentd/settings/source_and_output.html.haml

@@ -1,7 +1,5 @@
 - page_title t('.page_title')
 
-%h2
-
 .row.fluentd-setting-inout
   .col-xs-4
     .panel.panel-default
@@ -47,3 +45,28 @@
           = link_to(daemon_setting_out_forward_path(@fluentd)) do
             = icon('fa-file-text-o fa-lg')
             = t("fluentd.common.setup_out_forward")
+
+%h2= t('.current')
+
+.row
+  .col-xs-6
+    %h3= t('.in')
+    - @config.sources.each_with_index do |elm, idx|
+      .panel.panel-default
+        .panel-heading{"data-toggle" => "collapse", "href" => "#source#{idx}", "title" => elm.inspect}
+          = elm["type"]
+          = icon('fa-caret-down')
+        .panel-body.collapse{"id" => "source#{idx}"}
+          %pre= elm.to_s
+  .col-xs-6
+    %h3= t('.out')
+    - @config.matches.each_with_index do |elm, idx|
+      .panel.panel-default
+        .panel-heading{"data-toggle" => "collapse", "href" => "#match#{idx}", "title" => elm.inspect}
+          = elm["type"]
+          (
+          = elm.arg
+          )
+          = icon('fa-caret-down')
+        .panel-body.collapse{"id" => "match#{idx}"}
+          %pre= elm.to_s

config/locales/translation_en.yml

@@ -125,6 +125,7 @@ en:
         page_title: Add Source and Output
         in: Source
         out: Output
+        current: Current setting
       show:
         page_title: Config File
         in_out_head: In/Out setting

config/locales/translation_ja.yml

@@ -124,6 +124,7 @@ ja:
         page_title: ソースと出力先の追加
         in: 入力
         out: 出力
+        current: 現在の設定
       show:
         page_title: 設定ファイルの編集
       edit: