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"""Base metrics collector interface."""
from abc import ABC, abstractmethod
class MetricsCollector(ABC):
"""Abstract base class for metrics collection."""
@abstractmethod
def gauge(
self,
name: str,
value: float,
tags: dict[str, str] | None = None,
) -> None:
"""
Set a gauge metric to a specific value.
Args:
name: Metric name (e.g., 'snitun.peer.connections')
value: Current value
tags: Optional tags for the metric
"""
@abstractmethod
def increment(
self,
name: str,
value: float = 1,
tags: dict[str, str] | None = None,
) -> None:
"""
Increment a counter metric.
Args:
name: Metric name (e.g., 'snitun.connections.new')
value: Amount to increment (default: 1)
tags: Optional tags for the metric
"""
@abstractmethod
def histogram(
self,
name: str,
value: float,
tags: dict[str, str] | None = None,
) -> None:
"""
Record a value in a histogram.
Args:
name: Metric name (e.g., 'snitun.connection.duration')
value: Value to record
tags: Optional tags for the metric
"""
@abstractmethod
def timing(
self,
name: str,
value: float,
tags: dict[str, str] | None = None,
) -> None:
"""
Record a timing value.
Args:
name: Metric name (e.g., 'snitun.handshake.time')
value: Time in milliseconds
tags: Optional tags for the metric
"""
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