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| cat sample_rails.log | ruby rails_multiline_log_splitter.rb > output | |
| # ["Started GET \"/\" for 98.113.86.74 at Tue Sep 06 09:44:35 -0400 2011","Processing by LinksController#index as HTML","Completed 401 Unauthorized in 0ms"] | |
| # ["Started GET \"/\" for 98.113.86.74 at Tue Sep 06 09:44:36 -0400 2011","Processing by LinksController#index as HTML","Rendered links/index.html.erb within layouts/main (227.1ms)","Completed 200 OK in 339ms (Views: 228.3ms | ActiveRecord: 21.0ms)"] | |
| # ["Started GET \"/links/11\" for 98.113.86.74 at Tue Sep 06 09:44:52 -0400 2011","Processing by LinksController#show as HTML","Parameters: {\"id\"=>\"11\"}","Rendered links/show.html.erb within layouts/main (190.2ms)","Completed 200 OK in 194ms (Views: 191.1ms | ActiveRecord: 1.2ms)"] | |
| # ["Started GET \"/links/search?utf8=%E2%9C%93&q=ruby+on+rails&commit=Search\" for 98.113.86.74 at Tue Sep 06 09:45:12 -0400 2011","Processing by LinksController#search as HTML","Parameters: {\"commit\"=>\"Search\", \"utf8\"=>\"✓\", \"q\"=>\"ruby on rails\"}","Completed 401 Unauthorized in 0ms"] | |
| # ["Started GET \"/links/search?utf8=%E2%9C%93&q=ruby+on+rails&commit=Search\" for 98.113.86.74 at Tue Sep 06 09:45:12 -0400 2011","Processing by LinksController#search as HTML","Parameters: {\"commit\"=>\"Search\", \"utf8\"=>\"✓\", \"q\"=>\"ruby on rails\"}","Rendered links/index.html.erb within layouts/main (78.3ms)","Completed 200 OK in 218ms (Views: 79.1ms | ActiveRecord: 10.9ms)"] | |
| # ["Started GET \"/links/137\" for 98.113.86.74 at Tue Sep 06 09:45:28 -0400 2011","Processing by LinksController#show as HTML","Parameters: {\"id\"=>\"137\"}","Completed 401 Unauthorized in 0ms"] | |
| # ["Started GET \"/links/137\" for 98.113.86.74 at Tue Sep 06 09:45:28 -0400 2011","Processing by LinksController#show as HTML","Parameters: {\"id\"=>\"137\"}","Rendered links/show.html.erb within layouts/main (35.4ms)","Completed 200 OK in 39ms (Views: 36.4ms | ActiveRecord: 1.1ms)"] | |
| # ["Started GET \"/links/138\" for 98.113.86.74 at Tue Sep 06 09:45:33 -0400 2011","Processing by LinksController#show as HTML","Parameters: {\"id\"=>\"138\"}","Completed 401 Unauthorized in 0ms"] | |
| # ["Started GET \"/links/138\" for 98.113.86.74 at Tue Sep 06 09:45:33 -0400 2011","Processing by LinksController#show as HTML","Parameters: {\"id\"=>\"138\"}","Rendered links/show.html.erb within layouts/main (132.9ms)","Completed 200 OK in 136ms (Views: 133.8ms | ActiveRecord: 0.9ms)"] | |
| # ["Started GET \"/links/139\" for 98.113.86.74 at Tue Sep 06 09:45:37 -0400 2011","Processing by LinksController#show as HTML","Parameters: {\"id\"=>\"139\"}","Rendered links/show.html.erb within layouts/main (10.3ms)","Completed 200 OK in 13ms (Views: 11.0ms | ActiveRecord: 0.7ms)","\n","This is a test, only one newline","I just wanted to show some different thing","this s only one"] | |
| # ["whoa i'm a new entry","bring it"] |
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| require 'rubygems' | |
| require 'yajl/json_gem' | |
| # Simple flush to json, can add timestamp by parsing it. | |
| def flush(buffer) | |
| puts buffer.to_json | |
| end | |
| # Initialize | |
| buffer = [] | |
| previous_line_matched = false | |
| pattern_matched_count = 0 | |
| current_pattern = 0 | |
| split_buffer = [] | |
| buffer_last_seen_at = 0 | |
| # List of patterns to match | |
| # here we have two consecutive lines with only the newline | |
| patterns = [ | |
| /^\n$/, | |
| /^\n$/ | |
| ] | |
| STDIN.each_line do |line| | |
| # Perform match and increment. | |
| if matched = (line =~ patterns[current_pattern]) | |
| pattern_matched_count += 1 | |
| current_pattern += 1 | |
| end | |
| # Flush out if you reached patterns.length or the EOF | |
| if pattern_matched_count == patterns.length || STDIN.eof | |
| buffer << line.strip if STDIN.eof # add the last line if it's EOF. | |
| flush(buffer) | |
| # Reset | |
| previous_line_matched = false | |
| pattern_matched_count = 0 | |
| current_pattern = 0 | |
| split_buffer = [] | |
| buffer_last_seen_at = 0 | |
| buffer = [] | |
| next | |
| elsif matched | |
| # we need to keep track of where we were when we found the first | |
| # match. This is b/c we can get through a bunch of matches but | |
| # then fail on the last pattern. We need to be able to keep track | |
| # so we can inject the patterns matched (wich are part of the log entry) | |
| # back in | |
| buffer_last_seen_at = buffer.length if previous_line_matched == false | |
| split_buffer << line | |
| previous_line_matched = true | |
| else | |
| # We matched a few already, but then didn't get to the finish line | |
| # we need to add the matched lines back in b/c they weren't really | |
| # part of a split | |
| if pattern_matched_count > 0 | |
| buffer.insert(buffer_last_seen_at, *split_buffer) | |
| end | |
| # We didn't match earlier, and we're not flushing | |
| # so we should reset b/c there's no consecutive matches | |
| # Reset | |
| previous_line_matched = false | |
| pattern_matched_count = 0 | |
| current_pattern = 0 | |
| split_buffer = [] | |
| buffer_last_seen_at = 0 | |
| # buffer up the log entry clean up newlines | |
| buffer << line.strip | |
| end | |
| end |
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| Started GET "/" for 98.113.86.74 at Tue Sep 06 09:44:35 -0400 2011 | |
| Processing by LinksController#index as HTML | |
| Completed 401 Unauthorized in 0ms | |
| Started GET "/" for 98.113.86.74 at Tue Sep 06 09:44:36 -0400 2011 | |
| Processing by LinksController#index as HTML | |
| Rendered links/index.html.erb within layouts/main (227.1ms) | |
| Completed 200 OK in 339ms (Views: 228.3ms | ActiveRecord: 21.0ms) | |
| Started GET "/links/11" for 98.113.86.74 at Tue Sep 06 09:44:52 -0400 2011 | |
| Processing by LinksController#show as HTML | |
| Parameters: {"id"=>"11"} | |
| Rendered links/show.html.erb within layouts/main (190.2ms) | |
| Completed 200 OK in 194ms (Views: 191.1ms | ActiveRecord: 1.2ms) | |
| Started GET "/links/search?utf8=%E2%9C%93&q=ruby+on+rails&commit=Search" for 98.113.86.74 at Tue Sep 06 09:45:12 -0400 2011 | |
| Processing by LinksController#search as HTML | |
| Parameters: {"commit"=>"Search", "utf8"=>"✓", "q"=>"ruby on rails"} | |
| Completed 401 Unauthorized in 0ms | |
| Started GET "/links/search?utf8=%E2%9C%93&q=ruby+on+rails&commit=Search" for 98.113.86.74 at Tue Sep 06 09:45:12 -0400 2011 | |
| Processing by LinksController#search as HTML | |
| Parameters: {"commit"=>"Search", "utf8"=>"✓", "q"=>"ruby on rails"} | |
| Rendered links/index.html.erb within layouts/main (78.3ms) | |
| Completed 200 OK in 218ms (Views: 79.1ms | ActiveRecord: 10.9ms) | |
| Started GET "/links/137" for 98.113.86.74 at Tue Sep 06 09:45:28 -0400 2011 | |
| Processing by LinksController#show as HTML | |
| Parameters: {"id"=>"137"} | |
| Completed 401 Unauthorized in 0ms | |
| Started GET "/links/137" for 98.113.86.74 at Tue Sep 06 09:45:28 -0400 2011 | |
| Processing by LinksController#show as HTML | |
| Parameters: {"id"=>"137"} | |
| Rendered links/show.html.erb within layouts/main (35.4ms) | |
| Completed 200 OK in 39ms (Views: 36.4ms | ActiveRecord: 1.1ms) | |
| Started GET "/links/138" for 98.113.86.74 at Tue Sep 06 09:45:33 -0400 2011 | |
| Processing by LinksController#show as HTML | |
| Parameters: {"id"=>"138"} | |
| Completed 401 Unauthorized in 0ms | |
| Started GET "/links/138" for 98.113.86.74 at Tue Sep 06 09:45:33 -0400 2011 | |
| Processing by LinksController#show as HTML | |
| Parameters: {"id"=>"138"} | |
| Rendered links/show.html.erb within layouts/main (132.9ms) | |
| Completed 200 OK in 136ms (Views: 133.8ms | ActiveRecord: 0.9ms) | |
| Started GET "/links/139" for 98.113.86.74 at Tue Sep 06 09:45:37 -0400 2011 | |
| Processing by LinksController#show as HTML | |
| Parameters: {"id"=>"139"} | |
| Rendered links/show.html.erb within layouts/main (10.3ms) | |
| Completed 200 OK in 13ms (Views: 11.0ms | ActiveRecord: 0.7ms) | |
| This is a test, only one newline | |
| I just wanted to show some different thing | |
| this s only one | |
| whoa i'm a new entry | |
| bring it |
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