FM / logger

/usr/lib/python3/dist-packages/twisted/logger/

/usr/lib/python3/dist-packages/twisted/logger

Name	Size	Mode	Actions
test/	-	0755	rm
__pycache__/	-	0755	rm
_buffer.py	1529	0644	edit dl rm
_capture.py	624	0644	edit dl rm
_file.py	2337	0644	edit dl rm
_filter.py	6895	0644	edit dl rm
_flatten.py	4996	0644	edit dl rm
_format.py	11874	0644	edit dl rm
_global.py	8638	0644	edit dl rm
_interfaces.py	2348	0644	edit dl rm
_io.py	4568	0644	edit dl rm
_json.py	8433	0644	edit dl rm
_legacy.py	5241	0644	edit dl rm
_levels.py	2985	0644	edit dl rm
_logger.py	9982	0644	edit dl rm
_observer.py	3241	0644	edit dl rm
_stdlib.py	4546	0644	edit dl rm
_util.py	1400	0644	edit dl rm
__init__.py	3369	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/twisted/logger/_buffer.py (1529B)

# -*- test-case-name: twisted.logger.test.test_buffer -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Log observer that maintains a buffer.
"""

from collections import deque
from typing import Deque, Optional

from zope.interface import implementer

from ._interfaces import ILogObserver, LogEvent

_DEFAULT_BUFFER_MAXIMUM = 64 * 1024

@implementer(ILogObserver)
class LimitedHistoryLogObserver:
    """
    L{ILogObserver} that stores events in a buffer of a fixed size::

>>> from twisted.logger import LimitedHistoryLogObserver
        >>> history = LimitedHistoryLogObserver(5)
        >>> for n in range(10): history({'n': n})
        ...
        >>> repeats = []
        >>> history.replayTo(repeats.append)
        >>> len(repeats)
        5
        >>> repeats
        [{'n': 5}, {'n': 6}, {'n': 7}, {'n': 8}, {'n': 9}]
        >>>
    """

def __init__(self, size: Optional[int] = _DEFAULT_BUFFER_MAXIMUM) -> None:
        """
        @param size: The maximum number of events to buffer.  If L{None}, the
            buffer is unbounded.
        """
        self._buffer: Deque[LogEvent] = deque(maxlen=size)

def __call__(self, event: LogEvent) -> None:
        self._buffer.append(event)

def replayTo(self, otherObserver: ILogObserver) -> None:
        """
        Re-play the buffered events to another log observer.

@param otherObserver: An observer to replay events to.
        """
        for event in self._buffer:
            otherObserver(event)

# -*- test-case-name: twisted.logger.test.test_buffer -*- # Copyright (c) Twisted Matrix Laboratories. # See LICENSE for details. """ Log observer that maintains a buffer. """ from collections import deque from typing import Deque, Optional from zope.interface import implementer from ._interfaces import ILogObserver, LogEvent _DEFAULT_BUFFER_MAXIMUM = 64 * 1024 @implementer(ILogObserver) class LimitedHistoryLogObserver: """ L{ILogObserver} that stores events in a buffer of a fixed size:: >>> from twisted.logger import LimitedHistoryLogObserver >>> history = LimitedHistoryLogObserver(5) >>> for n in range(10): history({'n': n}) ... >>> repeats = [] >>> history.replayTo(repeats.append) >>> len(repeats) 5 >>> repeats [{'n': 5}, {'n': 6}, {'n': 7}, {'n': 8}, {'n': 9}] >>> """ def __init__(self, size: Optional[int] = _DEFAULT_BUFFER_MAXIMUM) -> None: """ @param size: The maximum number of events to buffer. If L{None}, the buffer is unbounded. """ self._buffer: Deque[LogEvent] = deque(maxlen=size) def __call__(self, event: LogEvent) -> None: self._buffer.append(event) def replayTo(self, otherObserver: ILogObserver) -> None: """ Re-play the buffered events to another log observer. @param otherObserver: An observer to replay events to. """ for event in self._buffer: otherObserver(event)