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54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
# SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
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#
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# SPDX-License-Identifier: Apache-2.0
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import contextlib
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import dataclasses
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import uuid
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from typing import Dict, Any, Optional, List, Iterator
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from haystack.tracing import Span, Tracer
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@dataclasses.dataclass
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class SpyingSpan(Span):
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operation_name: str
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parent_span: Optional[Span] = None
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tags: Dict[str, Any] = dataclasses.field(default_factory=dict)
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trace_id: Optional[str] = dataclasses.field(default_factory=lambda: str(uuid.uuid4()))
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span_id: Optional[str] = dataclasses.field(default_factory=lambda: str(uuid.uuid4()))
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def set_tag(self, key: str, value: Any) -> None:
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self.tags[key] = value
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def get_correlation_data_for_logs(self) -> Dict[str, Any]:
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return {"trace_id": self.trace_id, "span_id": self.span_id}
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def set_content_tag(self, key: str, value: Any) -> None:
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"""
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Set a content tag, but only if content tracing is enabled in the tracer.
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"""
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self.set_tag(key, value)
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class SpyingTracer(Tracer):
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def current_span(self) -> Optional[Span]:
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return self.spans[-1] if self.spans else None
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def __init__(self) -> None:
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self.spans: List[SpyingSpan] = []
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@contextlib.contextmanager
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def trace(
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self, operation_name: str, tags: Optional[Dict[str, Any]] = None, parent_span: Optional[Span] = None
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) -> Iterator[Span]:
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new_span = SpyingSpan(operation_name, parent_span)
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for key, value in (tags or {}).items():
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new_span.set_tag(key, value)
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self.spans.append(new_span)
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yield new_span
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