11576692286

Committed 29 Oct 2024 03:03PM UTC coverage: 56.886% (+0.1%) from 56.777%

Build # 11576692286

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #346 from atlanticwave-sdx/cleanup-topology-handling-logic

Cleanup topology handling logic

Run Details

1 of 19 new or added lines in 2 files covered. (5.26%)

2 existing lines in 1 file now uncovered.

1107 of 1946 relevant lines covered (56.89%)

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59.26

/sdx_controller/messaging/rpc_queue_consumer.py

#!/usr/bin/env python
import json
import logging
import os
import threading
from queue import Queue

import pika

from sdx_controller.handlers.lc_message_handler import LcMessageHandler
from sdx_controller.utils.parse_helper import ParseHelper

MQ_HOST = os.getenv("MQ_HOST")
MQ_PORT = os.getenv("MQ_PORT") or 5672
MQ_USER = os.getenv("MQ_USER") or "guest"
MQ_PASS = os.getenv("MQ_PASS") or "guest"

# subscribe to the corresponding queue
SUB_QUEUE = os.getenv("SUB_QUEUE")

logger = logging.getLogger(__name__)


class RpcConsumer(object):
    def __init__(self, thread_queue, exchange_name, te_manager):
        self.logger = logging.getLogger(__name__)

        self.logger.info(f"[MQ] Using amqp://{MQ_USER}@{MQ_HOST}:{MQ_PORT}")

        self.connection = pika.BlockingConnection(
            pika.ConnectionParameters(
                host=MQ_HOST,
                port=MQ_PORT,
                credentials=pika.PlainCredentials(username=MQ_USER, password=MQ_PASS),
            )
        )

        self.channel = self.connection.channel()
        self.exchange_name = exchange_name

        self.channel.queue_declare(queue=SUB_QUEUE)
        self._thread_queue = thread_queue

        self.te_manager = te_manager

        self._exit_event = threading.Event()

    def on_request(self, ch, method, props, message_body):
        response = message_body
        self._thread_queue.put(message_body)

        self.connection = pika.BlockingConnection(
            pika.ConnectionParameters(
                host=MQ_HOST,
                port=MQ_PORT,
                credentials=pika.PlainCredentials(username=MQ_USER, password=MQ_PASS),
            )
        )
        self.channel = self.connection.channel()

        ch.basic_publish(
            exchange=self.exchange_name,
            routing_key=props.reply_to,
            properties=pika.BasicProperties(correlation_id=props.correlation_id),
            body=str(response),
        )
        ch.basic_ack(delivery_tag=method.delivery_tag)

    def start_consumer(self):
        self.channel.basic_qos(prefetch_count=1)
        self.channel.basic_consume(queue=SUB_QUEUE, on_message_callback=self.on_request)

        self.logger.info(" [MQ] Awaiting requests from queue: " + SUB_QUEUE)
        self.channel.start_consuming()

    def start_sdx_consumer(self, thread_queue, db_instance):
        HEARTBEAT_ID = 0

        rpc = RpcConsumer(thread_queue, "", self.te_manager)
        t1 = threading.Thread(target=rpc.start_consumer, args=(), daemon=True)
        t1.start()

        lc_message_handler = LcMessageHandler(db_instance, self.te_manager)
        parse_helper = ParseHelper()

        latest_topo = {}
        domain_list = []

        # This part reads from DB when SDX controller initially starts.
        # It looks for domain_list, if already in DB,
        # Then use the existing ones from DB.
        domain_list_from_db = db_instance.read_from_db("domains", "domain_list")
        latest_topo_from_db = db_instance.read_from_db("topologies", "latest_topo")

        if domain_list_from_db:
            domain_list = domain_list_from_db["domain_list"]
            logger.debug("Domain list already exists in db: ")
            logger.debug(domain_list)

        if latest_topo_from_db:
            latest_topo = latest_topo_from_db["latest_topo"]
            logger.debug("Topology already exists in db: ")
            logger.debug(latest_topo)

        # If topologies already saved in db, use them to initialize te_manager
        if domain_list:
            for domain in domain_list:
                topology = db_instance.read_from_db("topologies", domain)

                if not topology:
                    continue

                # Get the actual thing minus the Mongo ObjectID.
                topology = topology[domain]
                topo_json = json.loads(topology)
                self.te_manager.add_topology(topo_json)
                logger.debug(f"Read {domain}: {topology}")

        while not self._exit_event.is_set():
            # Queue.get() will block until there's an item in the queue.
            msg = thread_queue.get()
            logger.debug("MQ received message:" + str(msg))

            if "Heart Beat" in str(msg):
                HEARTBEAT_ID += 1
                logger.debug("Heart beat received. ID: " + str(HEARTBEAT_ID))
                continue

            if not parse_helper.is_json(msg):
                continue

            if "version" not in str(msg):
                logger.info("Got message (NO VERSION) from MQ: " + str(msg))

            lc_message_handler.process_lc_json_msg(
                msg,
                latest_topo,
                domain_list,
            )

    def stop_threads(self):
        """
        Signal threads that we're ready to stop.
        """
        logger.info("[MQ] Stopping threads.")
        self.channel.stop_consuming()
        self._exit_event.set()

1	#!/usr/bin/env python
2	import json	4✔
3	import logging	4✔
4	import os	4✔
5	import threading	4✔
6	from queue import Queue	4✔
7
8	import pika	4✔
9
10	from sdx_controller.handlers.lc_message_handler import LcMessageHandler	4✔
11	from sdx_controller.utils.parse_helper import ParseHelper	4✔
12
13	MQ_HOST = os.getenv("MQ_HOST")	4✔
14	MQ_PORT = os.getenv("MQ_PORT") or 5672	4✔
15	MQ_USER = os.getenv("MQ_USER") or "guest"	4✔
16	MQ_PASS = os.getenv("MQ_PASS") or "guest"	4✔
17
18	# subscribe to the corresponding queue
19	SUB_QUEUE = os.getenv("SUB_QUEUE")	4✔
20
21	logger = logging.getLogger(__name__)	4✔
22
23
24	class RpcConsumer(object):	4✔
25	def __init__(self, thread_queue, exchange_name, te_manager):	4✔
26	self.logger = logging.getLogger(__name__)	4✔
27
28	self.logger.info(f"[MQ] Using amqp://{MQ_USER}@{MQ_HOST}:{MQ_PORT}")	4✔
29
30	self.connection = pika.BlockingConnection(	4✔
31	pika.ConnectionParameters(
32	host=MQ_HOST,
33	port=MQ_PORT,
34	credentials=pika.PlainCredentials(username=MQ_USER, password=MQ_PASS),
35	)
36	)
37
38	self.channel = self.connection.channel()	4✔
39	self.exchange_name = exchange_name	4✔
40
41	self.channel.queue_declare(queue=SUB_QUEUE)	4✔
42	self._thread_queue = thread_queue	4✔
43
44	self.te_manager = te_manager	4✔
45
46	self._exit_event = threading.Event()	4✔
47
48	def on_request(self, ch, method, props, message_body):	4✔
49	response = message_body	×
50	self._thread_queue.put(message_body)	×
51
52	self.connection = pika.BlockingConnection(	×
53	pika.ConnectionParameters(
54	host=MQ_HOST,
55	port=MQ_PORT,
56	credentials=pika.PlainCredentials(username=MQ_USER, password=MQ_PASS),
57	)
58	)
59	self.channel = self.connection.channel()	×
60
61	ch.basic_publish(	×
62	exchange=self.exchange_name,
63	routing_key=props.reply_to,
64	properties=pika.BasicProperties(correlation_id=props.correlation_id),
65	body=str(response),
66	)
67	ch.basic_ack(delivery_tag=method.delivery_tag)	×
68
69	def start_consumer(self):	4✔
70	self.channel.basic_qos(prefetch_count=1)	4✔
71	self.channel.basic_consume(queue=SUB_QUEUE, on_message_callback=self.on_request)	4✔
72
73	self.logger.info(" [MQ] Awaiting requests from queue: " + SUB_QUEUE)	4✔
74	self.channel.start_consuming()	4✔
75
76	def start_sdx_consumer(self, thread_queue, db_instance):	4✔
77	HEARTBEAT_ID = 0	4✔
78
79	rpc = RpcConsumer(thread_queue, "", self.te_manager)	4✔
80	t1 = threading.Thread(target=rpc.start_consumer, args=(), daemon=True)	4✔
81	t1.start()	4✔
82
83	lc_message_handler = LcMessageHandler(db_instance, self.te_manager)	4✔
84	parse_helper = ParseHelper()	4✔
85
86	latest_topo = {}	4✔
87	domain_list = []	4✔
88
89	# This part reads from DB when SDX controller initially starts.
90	# It looks for domain_list, if already in DB,
91	# Then use the existing ones from DB.
92	domain_list_from_db = db_instance.read_from_db("domains", "domain_list")	4✔
93	latest_topo_from_db = db_instance.read_from_db("topologies", "latest_topo")	4✔
94
95	if domain_list_from_db:	4✔
96	domain_list = domain_list_from_db["domain_list"]	×
NEW 97	logger.debug("Domain list already exists in db: ")	×
98	logger.debug(domain_list)	×
99
100	if latest_topo_from_db:	4✔
101	latest_topo = latest_topo_from_db["latest_topo"]	×
NEW 102	logger.debug("Topology already exists in db: ")	×
103	logger.debug(latest_topo)	×
104
105	# If topologies already saved in db, use them to initialize te_manager
106	if domain_list:	4✔
NEW 107	for domain in domain_list:	×
NEW 108	topology = db_instance.read_from_db("topologies", domain)	×
109
NEW 110	if not topology:	×
NEW 111	continue	×
112
113	# Get the actual thing minus the Mongo ObjectID.
NEW 114	topology = topology[domain]	×
NEW 115	topo_json = json.loads(topology)	×
NEW 116	self.te_manager.add_topology(topo_json)	×
NEW 117	logger.debug(f"Read {domain}: {topology}")	×
118
119	while not self._exit_event.is_set():	4✔
120	# Queue.get() will block until there's an item in the queue.
121	msg = thread_queue.get()	4✔
122	logger.debug("MQ received message:" + str(msg))	×
123
124	if "Heart Beat" in str(msg):	×
125	HEARTBEAT_ID += 1	×
126	logger.debug("Heart beat received. ID: " + str(HEARTBEAT_ID))	×
NEW 127	continue	×
128
NEW 129	if not parse_helper.is_json(msg):	×
NEW 130	continue	×
131
NEW 132	if "version" not in str(msg):	×
NEW 133	logger.info("Got message (NO VERSION) from MQ: " + str(msg))	×
134
NEW 135	lc_message_handler.process_lc_json_msg(	×
136	msg,
137	latest_topo,
138	domain_list,
139	)
140
141	def stop_threads(self):	4✔
142	"""
143	Signal threads that we're ready to stop.
144	"""
145	logger.info("[MQ] Stopping threads.")	×
146	self.channel.stop_consuming()	×
147	self._exit_event.set()	×

atlanticwave-sdx / sdx-controller / 11576692286

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