class LogStash::Inputs::Xls
Stream events from files.
By default, each event is assumed to be one line. If you want to join lines, you'll want to use the multiline filter.
Files are followed in a manner similar to “tail -0F”. File rotation is detected and handled by this input.
Public Instance Methods
register()
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# File lib/logstash/inputs/xls.rb, line 70 def register require "addressable/uri" require "filewatch/ext/xlstail" require "digest/md5" require "logstash/codecs/plain" @logger.info("Registering file input", :path => @path) @tail_config = { :exclude => @exclude, :stat_interval => @stat_interval, :discover_interval => @discover_interval, :sincedb_write_interval => @sincedb_write_interval, :logger => @logger, :progressdb => @progressdb, :progressdb_del => @progressdb_del, } @codec_plain = LogStash::Codecs::Plain.new @path.each do |path| if Pathname.new(path).relative? raise ArgumentError.new("File paths must be absolute, relative path specified: #{path}") end end if @sincedb_path.nil? if ENV["SINCEDB_DIR"].nil? && ENV["HOME"].nil? @logger.error("No SINCE_DB or HOME environment variable set, I don't know where " \ "to keep track of the files I'm watching. Either set " \ "HOME or SINCEDB_DIR in your environment, or set sincedb_path in " \ "in your logstash config for the file input with " \ "path '#{@path.inspect}'") raise # TODO(sissel): HOW DO I FAIL PROPERLY YO end #pick SINCEDB_DIR if available, otherwise use HOME sincedb_dir = ENV["SINCEDB_DIR"] || ENV["HOME"] # Join by ',' to make it easy for folks to know their own sincedb # generated path (vs, say, inspecting the @path array) @sincedb_path = File.join(sincedb_dir, ".sincedb_" + Digest::MD5.hexdigest(@path.join(","))) # Migrate any old .sincedb to the new file (this is for version <=1.1.1 compatibility) old_sincedb = File.join(sincedb_dir, ".sincedb") if File.exists?(old_sincedb) @logger.info("Renaming old ~/.sincedb to new one", :old => old_sincedb, :new => @sincedb_path) File.rename(old_sincedb, @sincedb_path) end @logger.info("No sincedb_path set, generating one based on the file path", :sincedb_path => @sincedb_path, :path => @path) end @tail_config[:sincedb_path] = @sincedb_path if @start_position == "beginning" @tail_config[:start_new_files_at] = :beginning end end
run(queue)
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# File lib/logstash/inputs/xls.rb, line 133 def run(queue) @tail = FileWatch::Ext::XlsTail.new(@tail_config) @tail.logger = @logger @path.each { |path| @tail.tail(path) } hostname = Socket.gethostname @tail.subscribe do |path, data, type| @logger.debug("Received line", :path => path, :data => data, :type => type) if logger.debug? if type == :log @codec.decode(data) do |event| decorate(event) #event["tags"] ||= [] event["host"] = hostname event["path"] = path queue << event end #decode elsif type == :progressdb || type == :progressdb_del @codec_plain.decode(data) do |event| decorate(event) event["host"] = hostname event["path"] = path event["type"] = "progressdb"; event.tag("del") if type == :progressdb_del queue << event end #decode end end # subscribe finished end
teardown()
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# File lib/logstash/inputs/xls.rb, line 171 def teardown @tail.sincedb_write @tail.quit end