da0a56895d
RoutingConfig loads OSRM/OTP URLs from env vars. OSRM client uses the /table endpoint for batch NxM distance matrices (walk/cycle). OTP client uses GraphQL API for transit routes. POI distance calculator orchestrates both, skipping already-computed distances and reporting progress.
52 lines
2 KiB
Python
52 lines
2 KiB
Python
"""Routing engine configuration with environment variable loading."""
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from __future__ import annotations
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import os
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from dataclasses import dataclass
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from typing import Self
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@dataclass(frozen=True)
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class RoutingConfig:
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"""Configuration for self-hosted routing engines (OSRM + OTP).
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Attributes:
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osrm_foot_url: URL for OSRM walking profile instance.
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osrm_bicycle_url: URL for OSRM cycling profile instance.
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otp_url: URL for OpenTripPlanner instance.
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osrm_batch_size: Number of origins per OSRM /table request.
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otp_max_concurrent: Max concurrent OTP requests.
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"""
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osrm_foot_url: str = "http://osrm-foot:5000"
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osrm_bicycle_url: str = "http://osrm-bicycle:5000"
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otp_url: str = "http://otp:8080"
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osrm_batch_size: int = 50
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otp_max_concurrent: int = 10
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@classmethod
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def from_env(cls) -> Self:
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"""Load configuration from environment variables.
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Environment variables:
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OSRM_FOOT_URL: OSRM walking instance URL (default: http://osrm-foot:5000)
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OSRM_BICYCLE_URL: OSRM cycling instance URL (default: http://osrm-bicycle:5000)
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OTP_URL: OpenTripPlanner URL (default: http://otp:8080)
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OSRM_BATCH_SIZE: Origins per /table request (default: 50)
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OTP_MAX_CONCURRENT: Max concurrent OTP requests (default: 10)
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"""
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return cls(
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osrm_foot_url=os.environ.get("OSRM_FOOT_URL", "http://osrm-foot:5000"),
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osrm_bicycle_url=os.environ.get("OSRM_BICYCLE_URL", "http://osrm-bicycle:5000"),
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otp_url=os.environ.get("OTP_URL", "http://otp:8080"),
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osrm_batch_size=int(os.environ.get("OSRM_BATCH_SIZE", "50")),
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otp_max_concurrent=int(os.environ.get("OTP_MAX_CONCURRENT", "10")),
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)
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def get_osrm_url(self, profile: str) -> str:
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"""Get the OSRM URL for a given profile."""
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if profile == "foot":
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return self.osrm_foot_url
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elif profile == "bicycle":
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return self.osrm_bicycle_url
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raise ValueError(f"Unknown OSRM profile: {profile}")
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