syslog2irc.network.parse_port() - Code Metrics - Inspection of "Support reception of syslog messages via TCP" - homeworkprod/syslog2irc - Measure and Improve Code Quality continuously with Scrutinizer

Test Failed

Push — main ( a03b0b...4dacf5 )

by Jochen

created 2021-05-04 07:57 UTC

syslog2irc.network.parse_port() B

↳ Parent: syslog2irc.network

Complexity

Conditions

Size

Total Lines	23
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
eloc	18
nop	1
dl	0
loc	23
rs	8.5666
c	0
b	0
f	0

"""
syslog2irc.network
~~~~~~~~~~~~~~~~~~

:Copyright: 2007-2021 Jochen Kupperschmidt
:License: MIT, see LICENSE for details.
"""

from dataclasses import dataclass
from enum import Enum


TransportProtocol = Enum('TransportProtocol', ['TCP', 'UDP'])


@dataclass(frozen=True)
class Port:
    """A network port."""

    number: int
    transport_protocol: TransportProtocol


def format_port(port: Port) -> str:
    """Return string representation for port."""
    return f'{port.number}/{port.transport_protocol.name.lower()}'


def parse_port(value: str) -> Port:
    """Extract port number and protocol from string representation."""
    tokens = value.split('/', maxsplit=1)
    if len(tokens) != 2:
        raise ValueError(f'Invalid port string "{value}"')

    number_str = tokens[0]
    try:
        number = int(number_str)
    except ValueError:
        raise ValueError(f'Invalid port number "{number_str}"')
    if number < 1 or number > 65535:
        raise ValueError(f'Invalid port number "{number_str}"')

    transport_protocol_str = tokens[1]
    try:
        transport_protocol = TransportProtocol[transport_protocol_str.upper()]
    except KeyError:
        raise ValueError(
            f'Unknown transport protocol "{transport_protocol_str}"'
        )

    return Port(number=number, transport_protocol=transport_protocol)


1			"""
2			syslog2irc.network
3			~~~~~~~~~~~~~~~~~~
4
5			:Copyright: 2007-2021 Jochen Kupperschmidt
6			:License: MIT, see LICENSE for details.
7			"""
8
9			from dataclasses import dataclass
10			from enum import Enum
11
12
13			TransportProtocol = Enum('TransportProtocol', ['TCP', 'UDP'])
14
15
16			@dataclass(frozen=True)
17			class Port:
18			"""A network port."""
19
20			number: int
21			transport_protocol: TransportProtocol
22
23
24			def format_port(port: Port) -> str:
25			"""Return string representation for port."""
26			return f'{port.number}/{port.transport_protocol.name.lower()}'
27
28
29			def parse_port(value: str) -> Port:
30			"""Extract port number and protocol from string representation."""
31			tokens = value.split('/', maxsplit=1)
32			if len(tokens) != 2:
33			raise ValueError(f'Invalid port string "{value}"')
34
35			number_str = tokens[0]
36			try:
37			number = int(number_str)
38			except ValueError:
39			raise ValueError(f'Invalid port number "{number_str}"')
40			if number < 1 or number > 65535:
41			raise ValueError(f'Invalid port number "{number_str}"')
42
43			transport_protocol_str = tokens[1]
44			try:
45			transport_protocol = TransportProtocol[transport_protocol_str.upper()]
46			except KeyError:
47			raise ValueError(
48			f'Unknown transport protocol "{transport_protocol_str}"'
49			)
50
51			return Port(number=number, transport_protocol=transport_protocol)
52

homeworkprod / syslog2irc

Push — main ( a03b0b...4dacf5 )

syslog2irc.network.parse_port() B

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like