Changed code to support older Python versions

venv/lib/python3.11/site-packages/sentry_sdk/_log_batcher.py

@@ -0,0 +1,172 @@
+import os
+import random
+import threading
+from datetime import datetime, timezone
+from typing import Optional, List, Callable, TYPE_CHECKING, Any
+
+from sentry_sdk.utils import format_timestamp, safe_repr
+from sentry_sdk.envelope import Envelope, Item, PayloadRef
+
+if TYPE_CHECKING:
+    from sentry_sdk._types import Log
+
+
+class LogBatcher:
+    MAX_LOGS_BEFORE_FLUSH = 100
+    MAX_LOGS_BEFORE_DROP = 1_000
+    FLUSH_WAIT_TIME = 5.0
+
+    def __init__(
+        self,
+        capture_func,  # type: Callable[[Envelope], None]
+        record_lost_func,  # type: Callable[..., None]
+    ):
+        # type: (...) -> None
+        self._log_buffer = []  # type: List[Log]
+        self._capture_func = capture_func
+        self._record_lost_func = record_lost_func
+        self._running = True
+        self._lock = threading.Lock()
+
+        self._flush_event = threading.Event()  # type: threading.Event
+
+        self._flusher = None  # type: Optional[threading.Thread]
+        self._flusher_pid = None  # type: Optional[int]
+
+    def _ensure_thread(self):
+        # type: (...) -> bool
+        """For forking processes we might need to restart this thread.
+        This ensures that our process actually has that thread running.
+        """
+        if not self._running:
+            return False
+
+        pid = os.getpid()
+        if self._flusher_pid == pid:
+            return True
+
+        with self._lock:
+            # Recheck to make sure another thread didn't get here and start the
+            # the flusher in the meantime
+            if self._flusher_pid == pid:
+                return True
+
+            self._flusher_pid = pid
+
+            self._flusher = threading.Thread(target=self._flush_loop)
+            self._flusher.daemon = True
+
+            try:
+                self._flusher.start()
+            except RuntimeError:
+                # Unfortunately at this point the interpreter is in a state that no
+                # longer allows us to spawn a thread and we have to bail.
+                self._running = False
+                return False
+
+        return True
+
+    def _flush_loop(self):
+        # type: (...) -> None
+        while self._running:
+            self._flush_event.wait(self.FLUSH_WAIT_TIME + random.random())
+            self._flush_event.clear()
+            self._flush()
+
+    def add(
+        self,
+        log,  # type: Log
+    ):
+        # type: (...) -> None
+        if not self._ensure_thread() or self._flusher is None:
+            return None
+
+        with self._lock:
+            if len(self._log_buffer) >= self.MAX_LOGS_BEFORE_DROP:
+                self._record_lost_func(
+                    reason="queue_overflow",
+                    data_category="log_item",
+                    quantity=1,
+                )
+                return None
+
+            self._log_buffer.append(log)
+            if len(self._log_buffer) >= self.MAX_LOGS_BEFORE_FLUSH:
+                self._flush_event.set()
+
+    def kill(self):
+        # type: (...) -> None
+        if self._flusher is None:
+            return
+
+        self._running = False
+        self._flush_event.set()
+        self._flusher = None
+
+    def flush(self):
+        # type: (...) -> None
+        self._flush()
+
+    @staticmethod
+    def _log_to_transport_format(log):
+        # type: (Log) -> Any
+        def format_attribute(val):
+            # type: (int | float | str | bool) -> Any
+            if isinstance(val, bool):
+                return {"value": val, "type": "boolean"}
+            if isinstance(val, int):
+                return {"value": val, "type": "integer"}
+            if isinstance(val, float):
+                return {"value": val, "type": "double"}
+            if isinstance(val, str):
+                return {"value": val, "type": "string"}
+            return {"value": safe_repr(val), "type": "string"}
+
+        if "sentry.severity_number" not in log["attributes"]:
+            log["attributes"]["sentry.severity_number"] = log["severity_number"]
+        if "sentry.severity_text" not in log["attributes"]:
+            log["attributes"]["sentry.severity_text"] = log["severity_text"]
+
+        res = {
+            "timestamp": int(log["time_unix_nano"]) / 1.0e9,
+            "trace_id": log.get("trace_id", "00000000-0000-0000-0000-000000000000"),
+            "level": str(log["severity_text"]),
+            "body": str(log["body"]),
+            "attributes": {
+                k: format_attribute(v) for (k, v) in log["attributes"].items()
+            },
+        }
+
+        return res
+
+    def _flush(self):
+        # type: (...) -> Optional[Envelope]
+
+        envelope = Envelope(
+            headers={"sent_at": format_timestamp(datetime.now(timezone.utc))}
+        )
+        with self._lock:
+            if len(self._log_buffer) == 0:
+                return None
+
+            envelope.add_item(
+                Item(
+                    type="log",
+                    content_type="application/vnd.sentry.items.log+json",
+                    headers={
+                        "item_count": len(self._log_buffer),
+                    },
+                    payload=PayloadRef(
+                        json={
+                            "items": [
+                                self._log_to_transport_format(log)
+                                for log in self._log_buffer
+                            ]
+                        }
+                    ),
+                )
+            )
+            self._log_buffer.clear()
+
+        self._capture_func(envelope)
+        return envelope