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# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
# This software is distributed under the terms and conditions of the 'Apache-2.0'
# license which can be found in the file 'LICENSE' in this package distribution
# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
import logging
from cliff.lister import Lister
from cliff.command import Command
from cliff.show import ShowOne
class LogsList(Lister):
"""List all logs."""
log = logging.getLogger(__name__)
def get_parser(self, prog_name):
parser = super(LogsList, self).get_parser(prog_name)
parser.add_argument(
'--filter',
metavar='<filter-str>',
help='Filter strings (example: "OK" or "authz")',
)
parser.add_argument(
'--fromdate',
metavar='<from-date-str>',
help='Filter logs by date (example: "2015-04-15-13:45:20")',
)
parser.add_argument(
'--todate',
metavar='<to-date-str>',
help='Filter logs by date (example: "2015-04-15-13:45:20")',
)
parser.add_argument(
'--number',
metavar='<number-int>',
help='Show only <number-int> logs',
)
return parser
@staticmethod
def split_into_line(line, max_char=60):
""" Split a long line into multiple lines
:param line: the line to split
:param max_char: maximal characters to have on one line
:return: a string with new lines
"""
words = line.split(" ")
return_line = ""
prev_modulo = 0
while True:
try:
modulo = len(return_line) % max_char
if modulo < prev_modulo:
return_line += "\n" + words.pop(0) + " "
else:
return_line += words.pop(0) + " "
prev_modulo = modulo
except IndexError:
return return_line
def split_time_message(self, line):
"""Split a log string into a table (date, message)
:param line: the line to split
:return: a table (date, message)
"""
_time, _blank, _message = line.split(" ", 2)
return _time, self.split_into_line(_message)
def take_action(self, parsed_args):
filter_str = parsed_args.filter
from_date = parsed_args.fromdate
to_date = parsed_args.todate
number = parsed_args.number
options = list()
if filter_str:
options.append("filter={}".format(filter_str))
if from_date:
options.append("from={}".format(from_date))
if to_date:
options.append("to={}".format(to_date))
if number:
options.append("event_number={}".format(number))
if len(options) > 0:
url = "/v3/OS-MOON/logs/{}".format(",".join(options))
else:
url = "/v3/OS-MOON/logs"
data = self.app.get_url(url, authtoken=True)
return (
("Time", "Message",),
(self.split_time_message(log) for log in data)
)
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