| """io.py — small shared utilities: id normalization, HTTP, time formatting, logging. |
| |
| Faithful extraction from the original l3_lib.py (logic unchanged). |
| """ |
| import time |
| import logging |
|
|
| import pandas as pd |
| import requests |
|
|
| import config |
|
|
|
|
| def norm_gage_id(x) -> str: |
| """Normalize a USGS site number to 8-digit zero-padded string. |
| Site numbers longer than 8 digits are preserved at their natural length.""" |
| if pd.isna(x) or str(x).strip() == "": |
| return "" |
| s = str(x).strip() |
| try: |
| i = int(float(s)) |
| nat = str(i) |
| return nat.zfill(8) if len(nat) <= 8 else nat |
| except (ValueError, TypeError): |
| return s |
|
|
|
|
| def safe_float(v, default=None): |
| try: |
| return float(v) |
| except (ValueError, TypeError): |
| return default |
|
|
|
|
| def dt_to_nwis(dt: pd.Timestamp) -> str: |
| return pd.Timestamp(dt).strftime("%Y-%m-%dT%H:%MZ") |
|
|
|
|
| def to_utc(ts: pd.Timestamp) -> pd.Timestamp: |
| ts = pd.Timestamp(ts) |
| return ts.tz_localize("UTC") if ts.tzinfo is None else ts.tz_convert("UTC") |
|
|
|
|
| def http_get(url, params=None, timeout=20): |
| """GET with a fixed inter-call delay; returns Response or None on any error. |
| In OFFLINE (cache-frozen) mode, suppress the network entirely (returns None), |
| so cache-miss queries behave as the original run's failure/miss.""" |
| if config.OFFLINE: |
| return None |
| try: |
| time.sleep(config.RATE_DELAY) |
| r = requests.get(url, params=params, timeout=timeout) |
| r.raise_for_status() |
| return r |
| except Exception: |
| return None |
|
|
|
|
| def get_logger(name="pipeline"): |
| logger = logging.getLogger(name) |
| if not logger.handlers: |
| h = logging.StreamHandler() |
| h.setFormatter(logging.Formatter("%(asctime)s %(levelname)-7s %(message)s", "%H:%M:%S")) |
| logger.addHandler(h) |
| logger.setLevel(logging.INFO) |
| return logger |
|
|
