mirror of
https://github.com/searxng/searxng.git
synced 2025-09-06 02:08:32 +02:00
57b9673efb
- pyright configuration [1]_ - stub files: types-lxml [2]_ - addition of various type hints - enable use of new type system features on older Python versions [3]_ - ``.tool-versions`` - set python to lowest version we support (3.10.18) [4]_: Older versions typically lack some typing features found in newer Python versions. Therefore, for local type checking (before commit), it is necessary to use the older Python interpreter. .. [1] https://docs.basedpyright.com/v1.20.0/configuration/config-files/ .. [2] https://pypi.org/project/types-lxml/ .. [3] https://typing-extensions.readthedocs.io/en/latest/# .. [4] https://mise.jdx.dev/configuration.html#tool-versions Signed-off-by: Markus Heiser <markus.heiser@darmarit.de> Format: reST
53 lines
1.9 KiB
Python
53 lines
1.9 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
"""Module providing support for displaying data in OpenMetrics format"""
|
|
|
|
import typing as t
|
|
|
|
OMFTypeHintType = t.Literal["counter", "gauge", "histogram", "summary"]
|
|
OMFDataInfoType = list[dict[str, str]]
|
|
OMFDataType = list[t.Any]
|
|
|
|
|
|
class OpenMetricsFamily: # pylint: disable=too-few-public-methods
|
|
"""A family of metrics.
|
|
|
|
- The ``key`` parameter is the metric name that should be used (snake case).
|
|
- The ``type_hint`` parameter must be one of ``counter``, ``gauge``,
|
|
``histogram``, ``summary``.
|
|
- The ``help_hint`` parameter is a short string explaining the metric.
|
|
- The data_info parameter is a dictionary of descriptionary parameters for
|
|
the data point (e.g. request method/path).
|
|
|
|
- The data parameter is a flat list of the actual data in shape of a
|
|
primitive type.
|
|
|
|
See `OpenMetrics specification`_ for more information.
|
|
|
|
.. _OpenMetrics specification:
|
|
https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.txt
|
|
|
|
"""
|
|
|
|
def __init__(
|
|
self, key: str, type_hint: OMFTypeHintType, help_hint: str, data_info: OMFDataInfoType, data: list[t.Any]
|
|
):
|
|
self.key: str = key
|
|
self.type_hint: OMFTypeHintType = type_hint
|
|
self.help_hint: str = help_hint
|
|
self.data_info: OMFDataInfoType = data_info
|
|
self.data: OMFDataType = data
|
|
|
|
def __str__(self):
|
|
text_representation = f"""\
|
|
# HELP {self.key} {self.help_hint}
|
|
# TYPE {self.key} {self.type_hint}
|
|
"""
|
|
|
|
for i, data_info_dict in enumerate(self.data_info):
|
|
if not data_info_dict or not self.data[i]:
|
|
continue
|
|
|
|
info_representation = ','.join([f'{key}="{value}"' for (key, value) in data_info_dict.items()])
|
|
text_representation += f'{self.key}{{{info_representation}}} {self.data[i]}\n'
|
|
|
|
return text_representation
|