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ce676f7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | # SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
#
# SPDX-License-Identifier: Apache-2.0
import contextlib
import dataclasses
import uuid
from typing import Dict, Any, Optional, List, Iterator
from haystack.tracing import Span, Tracer
@dataclasses.dataclass
class SpyingSpan(Span):
operation_name: str
parent_span: Optional[Span] = None
tags: Dict[str, Any] = dataclasses.field(default_factory=dict)
trace_id: Optional[str] = dataclasses.field(default_factory=lambda: str(uuid.uuid4()))
span_id: Optional[str] = dataclasses.field(default_factory=lambda: str(uuid.uuid4()))
def set_tag(self, key: str, value: Any) -> None:
self.tags[key] = value
def get_correlation_data_for_logs(self) -> Dict[str, Any]:
return {"trace_id": self.trace_id, "span_id": self.span_id}
class SpyingTracer(Tracer):
def current_span(self) -> Optional[Span]:
return self.spans[-1] if self.spans else None
def __init__(self) -> None:
self.spans: List[SpyingSpan] = []
@contextlib.contextmanager
def trace(
self, operation_name: str, tags: Optional[Dict[str, Any]] = None, parent_span: Optional[Span] = None
) -> Iterator[Span]:
new_span = SpyingSpan(operation_name, parent_span)
for key, value in (tags or {}).items():
new_span.set_tag(key, value)
self.spans.append(new_span)
yield new_span
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