From 61dc3da1279bc1bb556472bae42d369ad251b3ee Mon Sep 17 00:00:00 2001
From: uu59 <k@uu59.org>
Date: Tue, 24 Jun 2014 16:53:49 +0900
Subject: [PATCH] Grok convert to Regexp for config file

---
 app/models/fluentd/setting.rb | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/models/fluentd/setting.rb b/app/models/fluentd/setting.rb
index 083489f..1da1a80 100644
--- a/app/models/fluentd/setting.rb
+++ b/app/models/fluentd/setting.rb
@@ -65,7 +65,7 @@ class Fluentd
       def certain_format_line
         case format
         when "grok"
-          "format #{grok_str} # grok: #{grok_str}" # TODO: convert to regexp
+          "format /#{grok.convert_to_regexp(grok_str).source.gsub("/", "\\/")}/ # grok: '#{grok_str}'" # TODO: convert to regexp
         when "regexp"
           "format #{regexp}"
         else
@@ -73,6 +73,15 @@ class Fluentd
         end
       end
 
+      def grok
+        @grok ||=
+          begin
+            grok = GrokConverter.new
+            grok.load_patterns(Rails.root + "vendor/patterns")
+            grok
+          end
+      end
+
       def to_conf
         # NOTE: Using strip_heredoc makes more complex for format_specific_conf indent
         <<-XML.gsub(/^[ ]*\n/m, "")