50 lines
1.9 KiB
Python
50 lines
1.9 KiB
Python
# encoding: utf-8
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import re
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import sys
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from datetime import datetime
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class GenericParser(object):
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def __init__(self, fh): # siia võid anda sys.stdin, gzip.open, open vms file handle tüüpi obj
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self.fh = fh
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def __iter__(self):
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multiline_message = ""
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log_entry = None
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byte_count = 0
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line_count = 0
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event_count = 0
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for line in self.fh:
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byte_count += len(line) # loenda baite
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line_count += 1
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if not line.strip(): # jäta vahele tühjad read
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continue
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m = re.match(self.RE_LOG_ENTRY, line)
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if m:
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if log_entry and self.is_serious(log_entry):
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stack_trace = "\n".join(multiline_message.split("\n")[1:])
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event_count += 1
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row = \
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datetime.strptime(log_entry.get("timestamp"), self.TIMESTAMP_FORMAT), \
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log_entry, stack_trace, byte_count, line_count, event_count
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# See teeb funktsioonist generaatori/iteraatori
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yield row
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multiline_message = line
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log_entry = m.groupdict()
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else:
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multiline_message += line
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class JavaLogParser(GenericParser):
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TIMESTAMP_FORMAT = "%Y-%m-%d %H:%M:%S.%f"
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RE_LOG_ENTRY = "(?P<timestamp>.+?) (?P<severity>[A-Z]+) 1 --- \[(?P<thread>.+)\](?P<class>.+) +: (?P<message>.+)"
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def is_serious(self, log_entry):
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return log_entry.get("severity") == "ERROR"
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class ApacheLogParser(GenericParser):
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RE_LOG_ENTRY = "(?P<remote_addr>.+?) - (?P<username>.+?) \[(?P<timestamp>.+?) \+\d\d\d\d\] \"(?P<verb>[A-Z]+) (?P<path>.+) HTTP/1.[01]\" (?P<status>\d+) (?P<size>\d+) \"(?P<referrer>.+?)\" \"(?P<user_agent>.+?)\""
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TIMESTAMP_FORMAT = "%d/%b/%Y:%H:%M:%S"
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def is_serious(self, log_entry):
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return int(log_entry.get("status")) >= 400
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