LogAn/lib/logan/inc/fileparser.rb

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2010-03-29 11:50:59 +02:00
module LogAn
module Inc
module FileParser
module Base
def emit v
@logdb.push @sid, line
end
def seeks read
inode, seek = (@store[ :seeks, @sid] || "\0\0\0\0\0\0\0\0").unpack 'a4N'
@store[ :seeks, @sid] = [inode, read + seek].pack( 'a4N')
end
end
class Line
extend Base
attr_reader :sid, :delimiter, :buffer, :linebuffer
@@fileparser = []
def self.[] sid
@@fileparser[sid] ||= self.new sid
end
def initialize logdb, store, sid, delimiter = nil
@logdb, @store, @sid, @delimiter = logdb, store, sid, delimiter || "\n"
@delimiter = Regexp.new "^.*?#{@delimiter}"
@buffer, @linebuffer = Select::Buffer.new( ''), Select::Buffer.new( '')
end
def event_read str, sock
@buffer += str
@buffer.each! @delimiter do |line|
emit line
seeks line.length
end
end
end
class Multiline < Line
def initialize sid, delimiter = nil, multiline = nil
super sid, delimiter
@multiline = multiline || /^\d\d-\d\d-\d\d:/
end
def event_read str, sock
@buffer += str
@buffer.each! @delimiter do |line|
if line =~ @multiline
emit @linebuffer.to_s
seeks @linebuffer.length
@linebuffer.replace line
else @linebuffer += line
end
end
end
end
end
end
end