feat(ume): real-time current alarms via WebSocket subscription

Add WS consumer, persisted subscription store, manual subscribe/cancel APIs, and UI controls; extend sync and tests.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
oliver 2026-05-22 20:27:43 +08:00
parent 21f7cfba41
commit 4f8735a83f
13 changed files with 1171 additions and 22 deletions

View file

@ -1,6 +1,7 @@
from __future__ import annotations
import unittest
from typing import Any
from unittest.mock import patch
from sqlalchemy import create_engine
@ -10,7 +11,24 @@ from netx_api.db import Base
from netx_api.main import _extract_ume_raw_group_field, _serialize_ume_alarm_raw_row, sql_ume_query, ume_alarms_fields
from netx_api.models import UmeAlarmCurrent, UmeInventoryNE
from netx_api.ume_client import UMEClient
from netx_api.ume_sync_service import _derive_ne_id_from_alarm, sync_alarms_current, sync_inventory_full
from netx_api import ume_alarm_ws
from netx_api.models import UmeAlarmSubscription
from netx_api.ume_alarm_subscription_store import clear_subscription, load_subscription, save_subscription
from netx_api.ume_alarm_ws import (
cancel_alarm_subscription_manual,
establish_alarm_subscription_manual,
get_subscription_status,
load_persisted_subscription,
process_alarm_notification,
)
from netx_api.ume_sync_service import (
_derive_ne_id_from_alarm,
apply_alarm_to_current,
extract_alarm_from_notification,
normalize_yang_alarm,
sync_alarms_current,
sync_inventory_full,
)
from fastapi import HTTPException
@ -127,6 +145,53 @@ class UMEClientTests(unittest.TestCase):
self.assertEqual(len(rows), 2)
self.assertEqual(rows[1].get("alarmKey"), "AK-2")
def test_establish_alarm_subscription(self):
from time import time as _time
client = UMEClient(base_url="https://ume.local:18014", username="u", password="p", verify_tls=False)
client._token_value = "token-1"
client._token_expires_at = _time() + 3600
seen: dict[str, Any] = {}
def _fake_request(method: str, path: str, *, params=None, body=None):
seen["method"] = method
seen["path"] = path
seen["body"] = body
return (
{
"output": {
"id": "3282ac78-b38a-4242-81d2-cc5b77c28ef8",
"uri": "wss://ume.local:18014/restconf/stream/3282ac78-b38a-4242-81d2-cc5b77c28ef8",
}
},
None,
)
client._request_json_with_current_token = _fake_request # type: ignore[method-assign]
sub_id, uri = client.establish_alarm_subscription()
self.assertEqual(seen["method"], "POST")
self.assertEqual(seen["body"], {"input": {"topic": "ALARM"}})
self.assertEqual(sub_id, "3282ac78-b38a-4242-81d2-cc5b77c28ef8")
self.assertIn("wss://", uri)
def test_delete_alarm_subscription(self):
from time import time as _time
client = UMEClient(base_url="https://ume.local:18014", username="u", password="p", verify_tls=False)
client._token_value = "token-1"
client._token_expires_at = _time() + 3600
seen: dict[str, Any] = {}
def _fake_request(method: str, path: str, *, params=None, body=None):
seen["method"] = method
seen["body"] = body
return ({}, None)
client._request_json_with_current_token = _fake_request # type: ignore[method-assign]
client.delete_alarm_subscription("sub-to-delete")
self.assertEqual(seen["method"], "POST")
self.assertEqual(seen["body"], {"input": {"id": "sub-to-delete"}})
class UmeSyncServiceTests(unittest.TestCase):
def setUp(self):
@ -570,5 +635,129 @@ class UmeSyncServiceTests(unittest.TestCase):
self.assertIn("alarm_host_name", set(data["selectable_fields"]))
class UmeAlarmNotificationTests(unittest.TestCase):
def setUp(self):
engine = create_engine("sqlite+pysqlite:///:memory:", future=True)
TestingSessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, expire_on_commit=False)
Base.metadata.create_all(bind=engine)
self.db = TestingSessionLocal()
def tearDown(self):
self.db.close()
def test_normalize_yang_alarm_strips_prefix(self):
raw = {
"zte-alarms:alarmkey": "AK-WS-1",
"zte-alarms:is-cleared": False,
"zte-alarms:perceivedSeverity": "critical",
}
norm = normalize_yang_alarm(raw)
self.assertEqual(norm.get("alarmkey"), "AK-WS-1")
self.assertEqual(norm.get("is-cleared"), False)
self.assertEqual(norm.get("perceivedSeverity"), "critical")
def test_apply_alarm_to_current_insert_from_notification(self):
payload = {
"alarm-notification": {
"zte-alarms:alarmkey": "AK-WS-2",
"zte-alarms:is-cleared": False,
"zte-alarms:perceivedSeverity": "major",
"zte-alarms:objectName": "ME{00ceb960-1b62-478e-8303-0935ffea1d28}",
"zte-alarms:time-created": "2025-01-03T07:55:00.823+08:00",
}
}
alarm = extract_alarm_from_notification(payload)
self.assertIsNotNone(alarm)
from datetime import datetime
action, changed = apply_alarm_to_current(self.db, alarm or {}, touch_ts=datetime.utcnow())
self.db.commit()
self.assertEqual(action, "inserted")
self.assertTrue(changed)
row = self.db.get(UmeAlarmCurrent, "AK-WS-2")
self.assertIsNotNone(row)
self.assertEqual(row.perceived_severity, "major")
def test_apply_alarm_cleared_deletes_current_only(self):
from datetime import datetime
touch = datetime.utcnow()
self.db.add(
UmeAlarmCurrent(
alarm_key="AK-CLEARED-1",
first_seen_at=touch,
last_seen_at=touch,
is_cleared="false",
)
)
self.db.commit()
alarm = {
"alarmkey": "AK-CLEARED-1",
"is-cleared": True,
}
action, changed = apply_alarm_to_current(self.db, alarm, touch_ts=touch)
self.db.commit()
self.assertEqual(action, "deleted")
self.assertTrue(changed)
self.assertIsNone(self.db.get(UmeAlarmCurrent, "AK-CLEARED-1"))
def test_subscription_store_and_manual_establish(self):
from time import time as _time
ume_alarm_ws._clear_active_subscription()
engine = create_engine("sqlite+pysqlite:///:memory:", future=True)
TestingSessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, expire_on_commit=False)
Base.metadata.create_all(bind=engine)
db = TestingSessionLocal()
client = UMEClient(base_url="https://ume.local:18014", username="u", password="p", verify_tls=False)
client._token_value = "token-1"
client._token_expires_at = _time() + 3600
calls = {"n": 0}
def _fake_establish(*, topic=None):
calls["n"] += 1
return ("sub-1", "wss://ume.local:18014/restconf/stream/sub-1")
client.establish_alarm_subscription = _fake_establish # type: ignore[method-assign]
client.delete_alarm_subscription = lambda _id: None # type: ignore[method-assign]
st = establish_alarm_subscription_manual(client, db)
self.assertTrue(st["active"])
self.assertEqual(st["subscription_id"], "sub-1")
self.assertFalse(st.get("already_exists"))
self.assertEqual(calls["n"], 1)
st2 = establish_alarm_subscription_manual(client, db)
self.assertTrue(st2.get("already_exists"))
self.assertEqual(st2["subscription_id"], "sub-1")
self.assertEqual(calls["n"], 1)
loaded = load_subscription(db)
self.assertIsNotNone(loaded)
self.assertEqual(loaded[0], "sub-1")
self.assertTrue(get_subscription_status()["active"])
cancel_alarm_subscription_manual(client, db)
self.assertFalse(get_subscription_status()["active"])
self.assertIsNone(load_subscription(db))
db.close()
def test_process_alarm_notification_via_ws_helper(self):
from datetime import datetime
payload = {
"alarm-notification": {
"zte-alarms:alarmkey": "AK-WS-3",
"zte-alarms:is-cleared": False,
"zte-alarms:perceivedSeverity": "warning",
}
}
action, changed = process_alarm_notification(self.db, payload)
self.db.commit()
self.assertEqual(action, "inserted")
self.assertTrue(changed)
self.assertIsNotNone(self.db.get(UmeAlarmCurrent, "AK-WS-3"))
if __name__ == "__main__":
unittest.main()