✏️ Editing: caching.py Read Only

import functools
from typing import TYPE_CHECKING

from django import VERSION as DJANGO_VERSION
from django.core.cache import CacheHandler

from sentry_sdk import Hub
from sentry_sdk.consts import OP, SPANDATA
from sentry_sdk._compat import text_type

if TYPE_CHECKING:
    from typing import Any
    from typing import Callable

METHODS_TO_INSTRUMENT = [
    "get",
    "get_many",
]

def _get_span_description(method_name, args, kwargs):
    # type: (str, Any, Any) -> str
    description = "{} ".format(method_name)

if args is not None and len(args) >= 1:
        description += text_type(args[0])
    elif kwargs is not None and "key" in kwargs:
        description += text_type(kwargs["key"])

return description

def _patch_cache_method(cache, method_name):
    # type: (CacheHandler, str) -> None
    from sentry_sdk.integrations.django import DjangoIntegration

def _instrument_call(cache, method_name, original_method, args, kwargs):
        # type: (CacheHandler, str, Callable[..., Any], Any, Any) -> Any
        hub = Hub.current
        integration = hub.get_integration(DjangoIntegration)
        if integration is None or not integration.cache_spans:
            return original_method(*args, **kwargs)

description = _get_span_description(method_name, args, kwargs)

with hub.start_span(op=OP.CACHE_GET_ITEM, description=description) as span:
            value = original_method(*args, **kwargs)

if value:
                span.set_data(SPANDATA.CACHE_HIT, True)

size = len(text_type(value))
                span.set_data(SPANDATA.CACHE_ITEM_SIZE, size)

else:
                span.set_data(SPANDATA.CACHE_HIT, False)

return value

original_method = getattr(cache, method_name)

@functools.wraps(original_method)
    def sentry_method(*args, **kwargs):
        # type: (*Any, **Any) -> Any
        return _instrument_call(cache, method_name, original_method, args, kwargs)

setattr(cache, method_name, sentry_method)

def _patch_cache(cache):
    # type: (CacheHandler) -> None
    if not hasattr(cache, "_sentry_patched"):
        for method_name in METHODS_TO_INSTRUMENT:
            _patch_cache_method(cache, method_name)
        cache._sentry_patched = True

def patch_caching():
    # type: () -> None
    from sentry_sdk.integrations.django import DjangoIntegration

if not hasattr(CacheHandler, "_sentry_patched"):
        if DJANGO_VERSION < (3, 2):
            original_get_item = CacheHandler.__getitem__

@functools.wraps(original_get_item)
            def sentry_get_item(self, alias):
                # type: (CacheHandler, str) -> Any
                cache = original_get_item(self, alias)

integration = Hub.current.get_integration(DjangoIntegration)
                if integration and integration.cache_spans:
                    _patch_cache(cache)

return cache

CacheHandler.__getitem__ = sentry_get_item
            CacheHandler._sentry_patched = True

else:
            original_create_connection = CacheHandler.create_connection

@functools.wraps(original_create_connection)
            def sentry_create_connection(self, alias):
                # type: (CacheHandler, str) -> Any
                cache = original_create_connection(self, alias)

integration = Hub.current.get_integration(DjangoIntegration)
                if integration and integration.cache_spans:
                    _patch_cache(cache)

return cache

CacheHandler.create_connection = sentry_create_connection
            CacheHandler._sentry_patched = True

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