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import threading
from opentelemetry.sdk.trace import ReadableSpan
from opentelemetry.sdk.trace.export import BatchSpanProcessor
class LazyBatchSpanProcessor(BatchSpanProcessor):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.done = True
with self.condition:
self.condition.notify_all()
self.worker_thread.join()
self.done = False
self.worker_thread = None
def on_end(self, span: ReadableSpan) -> None:
if self.worker_thread is None:
self.worker_thread = threading.Thread(
name=self.__class__.__name__, target=self.worker, daemon=True
)
self.worker_thread.start()
super().on_end(span)
def shutdown(self) -> None:
self.done = True
with self.condition:
self.condition.notify_all()
if self.worker_thread:
self.worker_thread.join()
self.span_exporter.shutdown()
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