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"""ELineController.""" |
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# pylint: disable=unnecessary-lambda,invalid-name |
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import os |
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from datetime import datetime |
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from typing import Dict, Optional |
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import pymongo |
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from pymongo.collection import ReturnDocument |
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from pymongo.errors import AutoReconnect |
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from pymongo.operations import UpdateOne |
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from tenacity import retry_if_exception_type, stop_after_attempt, wait_random |
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from kytos.core import log |
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from kytos.core.db import Mongo |
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from kytos.core.retry import before_sleep, for_all_methods, retries |
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from napps.kytos.mef_eline.db.models import EVCBaseDoc, EVCUpdateDoc |
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@for_all_methods( |
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retries, |
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stop=stop_after_attempt( |
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int(os.environ.get("MONGO_AUTO_RETRY_STOP_AFTER_ATTEMPT", "3")) |
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), |
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wait=wait_random( |
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min=int(os.environ.get("MONGO_AUTO_RETRY_WAIT_RANDOM_MIN", "1")), |
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max=int(os.environ.get("MONGO_AUTO_RETRY_WAIT_RANDOM_MAX", "1")), |
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), |
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before_sleep=before_sleep, |
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retry=retry_if_exception_type((AutoReconnect,)), |
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) |
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class ELineController: |
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"""E-Line Controller""" |
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def __init__(self, get_mongo=lambda: Mongo()) -> None: |
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self.mongo = get_mongo() |
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self.db_client = self.mongo.client |
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self.db = self.db_client[self.mongo.db_name] |
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def bootstrap_indexes(self) -> None: |
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"""Bootstrap mef_eline relaeted indexes.""" |
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index_tuples = [ |
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("evcs", [("circuit_scheduler.id", pymongo.ASCENDING)]), |
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("evcs", [("archived", pymongo.ASCENDING)]), |
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] |
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for collection, keys in index_tuples: |
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if self.mongo.bootstrap_index(collection, keys): |
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log.info( |
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f"Created DB index {keys}, collection: {collection}" |
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) |
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def get_circuits(self, archived: Optional[bool] = False, |
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metadata: dict = None) -> Dict: |
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"""Get all circuits from database.""" |
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aggregation = [] |
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options = {"null": None, "true": True, "false": False} |
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match_filters = {"$match": {}} |
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aggregation.append(match_filters) |
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if archived is not None: |
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archived = options.get(archived, False) |
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match_filters["$match"]["archived"] = archived |
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if metadata: |
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for key in metadata: |
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if "metadata." in key[:9]: |
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try: |
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match_filters["$match"][key] = int(metadata[key]) |
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except ValueError: |
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item = metadata[key] |
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item = options.get(item.lower(), item) |
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match_filters["$match"][key] = item |
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aggregation.extend([ |
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{"$sort": {"_id": 1}}, |
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{"$project": EVCBaseDoc.projection()}, |
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] |
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) |
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circuits = self.db.evcs.aggregate(aggregation) |
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return {"circuits": {value["id"]: value for value in circuits}} |
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def get_circuit(self, circuit_id: str) -> Optional[Dict]: |
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"""Get a circuit.""" |
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return self.db.evcs.find_one({"_id": circuit_id}, |
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EVCBaseDoc.projection()) |
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def upsert_evc(self, evc: Dict) -> Optional[Dict]: |
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"""Update or insert an EVC""" |
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utc_now = datetime.utcnow() |
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model = EVCBaseDoc( |
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**{ |
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**evc, |
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**{"_id": evc["id"]} |
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} |
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).dict(exclude={"inserted_at"}, exclude_none=True) |
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model.setdefault("queue_id", None) |
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updated = self.db.evcs.find_one_and_update( |
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{"_id": evc["id"]}, |
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{ |
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"$set": model, |
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"$setOnInsert": {"inserted_at": utc_now}, |
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}, |
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return_document=ReturnDocument.AFTER, |
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upsert=True, |
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) |
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return updated |
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def update_evc(self, evc: Dict) -> Optional[Dict]: |
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"""Update an EVC. |
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This is needed to correctly set None values to fields""" |
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# Check for errors in fields only. |
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EVCUpdateDoc( |
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**{ |
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**evc, |
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**{"_id": evc["id"]} |
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} |
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) |
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updated = self.db.evcs.find_one_and_update( |
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{"_id": evc["id"]}, |
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{ |
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"$set": evc, |
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}, |
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return_document=ReturnDocument.AFTER, |
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) |
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return updated |
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def update_evcs(self, evcs: list[dict]) -> int: |
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"""Update EVCs and return the number of modified documents.""" |
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if not evcs: |
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return 0 |
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ops = [] |
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utc_now = datetime.utcnow() |
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for evc in evcs: |
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evc["updated_at"] = utc_now |
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model = EVCBaseDoc( |
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**{ |
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**evc, |
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**{"_id": evc["id"]} |
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} |
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).dict(exclude_none=True) |
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ops.append( |
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UpdateOne( |
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{"_id": evc["id"]}, |
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{ |
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"$set": model, |
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"$setOnInsert": {"inserted_at": utc_now} |
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}, |
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) |
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) |
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return self.db.evcs.bulk_write(ops).modified_count |
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def update_evcs_metadata( |
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self, circuit_ids: list, metadata: dict, action: str |
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): |
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"""Bulk update EVCs metadata.""" |
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utc_now = datetime.utcnow() |
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metadata = {f"metadata.{k}": v for k, v in metadata.items()} |
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if action == "add": |
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payload = {"$set": metadata} |
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elif action == "del": |
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payload = {"$unset": metadata} |
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ops = [] |
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for _id in circuit_ids: |
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ops.append( |
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UpdateOne( |
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{"_id": _id}, |
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{ |
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**payload, |
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"$setOnInsert": {"inserted_at": utc_now} |
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}, |
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upsert=False, |
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) |
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) |
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return self.db.evcs.bulk_write(ops).modified_count |
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kytos-ng /
mef_eline
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