Class: Logical::Naf::LogParser::Base
- Inherits:
-
Object
- Object
- Logical::Naf::LogParser::Base
- Defined in:
- app/models/logical/naf/log_parser/base.rb
Direct Known Subclasses
Constant Summary collapse
- REGEX_OPTIONS =
{ 'i' => Regexp::IGNORECASE, 'x' => Regexp::EXTENDED, 'm' => Regexp::MULTILINE }
- DATE_REGEX =
/((\d){8}_(\d){6})/
- UUID_REGEX =
/[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}/
- LOG_SIZE_CHUNKS =
500
Instance Attribute Summary collapse
-
#grep ⇒ Object
Returns the value of attribute grep.
-
#jsons ⇒ Object
Returns the value of attribute jsons.
-
#last_file_checked ⇒ Object
Returns the value of attribute last_file_checked.
-
#log_type ⇒ Object
Returns the value of attribute log_type.
-
#logs_size ⇒ Object
Returns the value of attribute logs_size.
-
#newest_file_checked ⇒ Object
Returns the value of attribute newest_file_checked.
-
#newest_log ⇒ Object
Returns the value of attribute newest_log.
-
#read_from_s3 ⇒ Object
Returns the value of attribute read_from_s3.
-
#record_id ⇒ Object
Returns the value of attribute record_id.
-
#regex_options ⇒ Object
Returns the value of attribute regex_options.
-
#s3_log_reader ⇒ Object
Returns the value of attribute s3_log_reader.
-
#search_from_time ⇒ Object
Returns the value of attribute search_from_time.
-
#search_params ⇒ Object
Returns the value of attribute search_params.
-
#search_to_time ⇒ Object
Returns the value of attribute search_to_time.
Instance Method Summary collapse
- #build_time_string(search_time) ⇒ Object
- #check_repeated_logs ⇒ Object
- #filter_files ⇒ Object
- #filter_log_messages(log) ⇒ Object
- #get_json_from_log_file(file) ⇒ Object
- #get_option_value(options) ⇒ Object
- #get_s3_files ⇒ Object
-
#initialize(params) ⇒ Base
constructor
A new instance of Base.
- #log_within_time_range(log_time) ⇒ Object
- #parse_files ⇒ Object
- #parse_log(log) ⇒ Object
- #retrieve_logs ⇒ Object
- #update_last_file_checked(file) ⇒ Object
Constructor Details
#initialize(params) ⇒ Base
Returns a new instance of Base.
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# File 'app/models/logical/naf/log_parser/base.rb', line 31 def initialize(params) @search_params = params['search_params'].nil? ? '' : params['search_params'] @regex_options = get_option_value(params['regex_options']) @grep = params['grep'] @search_from_time = params['from_time'] @search_to_time = params['to_time'] @jsons = [] @logs_size = 0 @log_type = params['log_type'] @newest_log = params['newest_log'] @record_id = params['record_id'] @read_from_s3 = params['read_from_s3'] @last_file_checked = params['last_file_checked'] @newest_file_checked = params['newest_file_checked'] end |
Instance Attribute Details
#grep ⇒ Object
Returns the value of attribute grep.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def grep @grep end |
#jsons ⇒ Object
Returns the value of attribute jsons.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def jsons @jsons end |
#last_file_checked ⇒ Object
Returns the value of attribute last_file_checked.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def last_file_checked @last_file_checked end |
#log_type ⇒ Object
Returns the value of attribute log_type.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def log_type @log_type end |
#logs_size ⇒ Object
Returns the value of attribute logs_size.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def logs_size @logs_size end |
#newest_file_checked ⇒ Object
Returns the value of attribute newest_file_checked.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def newest_file_checked @newest_file_checked end |
#newest_log ⇒ Object
Returns the value of attribute newest_log.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def newest_log @newest_log end |
#read_from_s3 ⇒ Object
Returns the value of attribute read_from_s3.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def read_from_s3 @read_from_s3 end |
#record_id ⇒ Object
Returns the value of attribute record_id.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def record_id @record_id end |
#regex_options ⇒ Object
Returns the value of attribute regex_options.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def @regex_options end |
#s3_log_reader ⇒ Object
Returns the value of attribute s3_log_reader.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def s3_log_reader @s3_log_reader end |
#search_from_time ⇒ Object
Returns the value of attribute search_from_time.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def search_from_time @search_from_time end |
#search_params ⇒ Object
Returns the value of attribute search_params.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def search_params @search_params end |
#search_to_time ⇒ Object
Returns the value of attribute search_to_time.
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# File 'app/models/logical/naf/log_parser/base.rb', line 16 def search_to_time @search_to_time end |
Instance Method Details
#build_time_string(search_time) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 214 def build_time_string(search_time) # Year search_built_time = search_time[0] + "-" # Month if search_time[1].to_i < 10 search_built_time << '0' + search_time[1] + '-' else search_built_time << search_time[1] + '-' end # Day if search_time[2].to_i < 10 search_built_time << '0' + search_time[2] + ' ' else search_built_time << search_time[2] + ' ' end # Hour search_built_time << search_time[3] + ':' # Minute if search_time[4].to_i < 10 search_built_time << '0' + search_time[4] else search_built_time << search_time[4] end # Second search_built_time << ':00 -0500' search_built_time end |
#check_repeated_logs ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 66 def check_repeated_logs if log_type == 'new' && newest_log.present? @jsons.each_with_index do |elem, index| if parse_log(elem) == parse_newest_log @jsons = @jsons[(index + 1)..-1] return end end end end |
#filter_files ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 133 def filter_files files = get_files original_size = files.size files.each_with_index do |file, index| filename = file.scan(/\d+_\d{8}_\d{6}.*/).first if log_type == 'old' if filename == last_file_checked if files.size == 1 files = [] else files = files[(index + 1)..-1] end end if files.size == 0 && read_from_s3 != 'true' get_s3_files do @read_from_s3 = 'true' @s3_log_reader = ::Logical::Naf::LogReader.new return retrieve_log_files_from_s3 end end elsif log_type == 'new' if filename == newest_file_checked if files.size == 1 files = [] else files = files[0..(index - 1)] end end end break if original_size != files.size end if files.present? if newest_file_checked.blank? || newest_file_checked == 'null' @newest_file_checked = files[0].scan(/\d+_\d{8}_\d{6}.*/).first else if Time.parse(newest_file_checked.scan(DATE_REGEX)[0][0]) < Time.parse(files[0].scan(DATE_REGEX)[0][0]) @newest_file_checked = files[0].scan(/\d+_\d{8}_\d{6}.*/).first end end end return files end |
#filter_log_messages(log) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 182 def (log) # Check that the message matches the search query. Highlight the matching results if search_params.present? log['message'].scan(Regexp.new(search_params, )).each do |match| log['message'].gsub!(match, "<span style='background-color:yellow;'>#{match}</span>") end end # Check that the log happened within the time range specified if log_within_time_range(log['output_time']) # If grep is selected, only show log messages that match the # search query. Otherwise, show all log messages. if grep == 'false' || log['message'] =~ Regexp.new(search_params, ) @jsons << log @logs_size += 1 end end end |
#get_json_from_log_file(file) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 125 def get_json_from_log_file(file) if read_from_s3 == 'true' && s3_log_reader.present? s3_log_reader.retrieve_file(file) else File.new(file, 'r') end end |
#get_option_value(options) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 243 def get_option_value() return 0 if .blank? = .split(//) result = 0 .each do |opt| result |= REGEX_OPTIONS[opt] end result end |
#get_s3_files ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 255 def get_s3_files begin yield rescue @jsons << { 'line_number' => 0, 'output_time' => Time.zone.now.strftime("%Y-%m-%d %H:%M:%S.%L"), 'message' => 'AWS S3 Access Denied. Please check your permissions.' } return [] end end |
#log_within_time_range(log_time) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 201 def log_within_time_range(log_time) return true if (search_from_time.join('').blank? && search_to_time.join('').blank?) || log_time.blank? if search_from_time.join('').present? && search_to_time.join('').present? Time.parse(log_time) <= Time.parse(build_time_string(search_to_time)) && Time.parse(log_time) >= Time.parse(build_time_string(search_from_time)) elsif search_from_time.join('').present? Time.parse(log_time) >= Time.parse(build_time_string(search_from_time)) elsif search_to_time.join('').present? Time.parse(log_time) <= Time.parse(build_time_string(search_to_time)) end end |
#parse_files ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 87 def parse_files files = filter_files files.each do |file| # Use Yajl JSON library to parse the log files, as they contain multiple JSON blocks parser = Yajl::Parser.new json = get_json_from_log_file(file) parser.parse(json) do |log| if self.class.to_s == 'Logical::Naf::LogParser::Runner' log['id'] = get_invocation_id(file.scan(UUID_REGEX).first) end log['message'] = CGI::escapeHTML(log['message']) (log) end sort_jsons if logs_size >= LOG_SIZE_CHUNKS update_last_file_checked(file.scan(/\d+_\d{8}_\d{6}.*/).first) break end end if logs_size < LOG_SIZE_CHUNKS && files.present? update_last_file_checked(files.last.scan(/\d+_\d{8}_\d{6}.*/).first) end end |
#parse_log(log) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 77 def parse_log(log) if log['message'].scan(/\t/).present? = log['message'].clone .slice!('<top (required)>') "#{log['output_time']} #{}" else "#{log['output_time']} #{log['message']}" end end |
#retrieve_logs ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 47 def retrieve_logs parse_files check_repeated_logs output = '' jsons.reverse_each do |elem| output.insert(0, insert_log_line(elem)) end return { logs: output.html_safe, read_from_s3: read_from_s3, last_file_checked: last_file_checked, newest_file_checked: newest_file_checked, newest_log: newest_log } end |
#update_last_file_checked(file) ⇒ Object
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# File 'app/models/logical/naf/log_parser/base.rb', line 115 def update_last_file_checked(file) if file.present? && last_file_checked.present? && last_file_checked != 'null' if Time.parse(file.scan(/\d{8}_\d{6}/).first) < Time.parse(last_file_checked.scan(/\d{8}_\d{6}/).first) @last_file_checked = file end elsif file.present? @last_file_checked = file end end |