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#!/usr/bin/python3
import asyncio
import os
import datetime
import glob
import logging
import asyncpg
import joblib.worker
source_db = {
"host": os.environ.get("POSTGRESQL_SOURCE_HOST") or "vaindock_postgres_raw",
"port": os.environ.get("POSTGRESQL_SOURCE_PORT") or 5532,
"user": os.environ.get("POSTGRESQL_SOURCE_USER") or "vainraw",
"password": os.environ.get("POSTGRESQL_SOURCE_PASSWORD") or "vainraw",
"database": os.environ.get("POSTGRESQL_SOURCE_DB") or "vainsocial-raw"
}
dest_db = {
"host": os.environ.get("POSTGRESQL_DEST_HOST") or "vaindock_postgres_web",
"port": os.environ.get("POSTGRESQL_DEST_PORT") or 5432,
"user": os.environ.get("POSTGRESQL_DEST_USER") or "vainweb",
"password": os.environ.get("POSTGRESQL_DEST_PASSWORD") or "vainweb",
"database": os.environ.get("POSTGRESQL_DEST_DB") or "vainsocial-web"
}
def date2iso(d):
"""Convert datetime to iso8601 zulu string."""
date = d.replace(microsecond=0)
date = date.isoformat()
date += "Z"
return date
class Processor(joblib.worker.Worker):
def __init__(self, do_preload=False, do_analyze=False):
self._queries = {}
super().__init__(jobtype="process")
self._do_preload = do_preload # request preload jobs
self._do_analyze = do_analyze # request machine learning
async def connect(self, sourcea, desta):
"""Connect to database."""
logging.warning("connecting to database")
await super().connect(**sourcea)
self._srccon = await asyncpg.connect(**sourcea)
self._destcon = await asyncpg.connect(**desta)
async def setup(self):
"""Initialize the database."""
scriptroot = os.path.realpath(
os.path.join(os.getcwd(), os.path.dirname(__file__)))
for path in glob.glob(scriptroot + "/queries/*.sql"):
# utf-8-sig is used by pgadmin, doesn't hurt to specify
# file names: raw target table
table = os.path.splitext(os.path.basename(path))[0]
with open(path, "r", encoding="utf-8-sig") as file:
self._queries[table] = await self._srccon.prepare(
file.read())
logging.info("loaded query '%s'", table)
self._deletematch = await self._srccon.prepare(
"DELETE FROM match WHERE id=$1")
async def _windup(self):
self._srctr = self._srccon.transaction()
self._desttr = self._destcon.transaction()
await self._srctr.start()
await self._desttr.start()
self._priorities = []
self._compilejobs = []
self._analyzejobs = []
self._preloads = []
async def _teardown(self, failed):
if failed:
await self._srctr.rollback()
await self._desttr.rollback()
else:
await self._srctr.commit()
await self._desttr.commit()
await self.request(
jobtype="compile",
payload=self._compilejobs,
priority=self._priorities)
if self._do_analyze:
await self.request(
jobtype="analyze",
payload=self._analyzejobs)
if self._do_preload:
preloadjobs = [{
"region": s[0],
"params": {
"filter[playerNames]": s[1],
"filter[createdAt-start]": date2iso(s[2] + datetime.timedelta(seconds=1)),
"filter[gameMode]": "casual,ranked"
}
} for s in self._preloads]
await self.request(
jobtype="preload",
payload=preloadjobs,
priority=[2]*len(preloadjobs))
async def _execute_job(self, jobid, payload, priority):
"""Finish a job."""
object_id = payload["id"]
explicit_player = payload["playername"]
# 1 object in raw : n objects in web
for table, query in self._queries.items():
logging.debug("%s: running '%s' query",
jobid, table)
# fetch from raw, converted to format for web table
datas = await query.fetch(object_id)
for data in datas:
lmcd = None
try:
if table == "player":
obj_id, lmcd = await self._playerinto(
self._destcon, data, table,
data["name"] == explicit_player)
else:
obj = await self._into(
self._destcon, data, table)
obj_id = None
if obj is not None:
obj_id = obj["api_id"]
except asyncpg.exceptions.DeadlockDetectedError:
logging.error("%s: deadlocked!", jobid)
raise joblib.worker.JobFailed("deadlock",
True) # critical
except asyncpg.exceptions.IntegrityConstraintViolationError as err:
logging.error("%s: SQL error '%s'!", jobid, err)
raise joblib.worker.JobFailed({"id": object_id,
"error": str(err)}, True)
logging.debug("record processed")
if obj_id is not None:
# run web->web queries
payload = {
"type": table,
"id": obj_id
}
logging.debug("%s: requesting jobs for %s",
jobid, obj_id)
self._priorities.append(priority)
if table == "player" or table == "participant":
self._compilejobs.append(payload)
if table == "participant":
self._analyzejobs.append(payload)
if lmcd is not None:
now = datetime.datetime.now()
interval_mins = (now - lmcd).total_seconds()/60
logging.debug("%s: minutes since last match: %s",
jobid, interval_mins)
if priority == 1 and interval_mins > 30:
# TODO move to config var ^
# TODO
# only allowed 1 level by ToS
if data["name"] not in [p[1] for p in self._preloads]:
# prevent duplicates
# TODO also prevent across batches!
self._preloads.append((data["shard_id"],
data["name"], lmcd))
await self._deletematch.fetchrow(object_id)
async def _playerinto(self, conn, data, table, update_date):
"""Upsert a player named tuple into a table.
Return the object id."""
# save lmcd to restore later
lmcd = await conn.fetchval("""
SELECT last_match_created_date FROM player
WHERE api_id=$1
""", data["api_id"])
obj = await self._into(conn, data, table, conflict="""
DO UPDATE SET ("{1}") = ({2})
WHERE COALESCE(player.last_match_created_date,
'epoch'::TIMESTAMP)
<= COALESCE(EXCLUDED.last_match_created_date,
'epoch'::TIMESTAMP)
RETURNING api_id, last_match_created_date
""")
if obj is None:
logging.debug("player was not updated")
return None, None
objid = obj["api_id"]
objlmcd = obj["last_match_created_date"]
# restore lmcd because
# we want to request a preload job
if not update_date:
await conn.fetchval("""
UPDATE player SET last_match_created_date=$2
WHERE player.api_id=$1
""", objid, lmcd)
return objid, objlmcd
async def _into(self, conn, data, table,
conflict="DO NOTHING RETURNING api_id"):
"""Insert a named tuple into a table.
Return the object id."""
items = list(data.items())
keys, values = [x[0] for x in items], [x[1] for x in items]
placeholders = ["${}".format(i) for i, _ in enumerate(values, 1)]
query = ("INSERT INTO {0} (\"{1}\") VALUES ({2}) ON CONFLICT(api_id) " +
conflict).format(
table,
"\", \"".join(keys),
", ".join(placeholders))
logging.debug("query: %s", query)
logging.debug("data: %s", data)
return await conn.fetchrow(query, (*data))
async def startup():
for _ in range(1):
worker = Processor(
do_preload=os.environ.get("VAINSOCIAL_SPIDER")=="true",
do_analyze=os.environ.get("VAINSOCIAL_ANALYZE")=="true"
)
await worker.connect(
source_db, dest_db
)
await worker.setup()
await worker.start(batchlimit=50)
logging.basicConfig(
filename=os.path.realpath(
os.path.join(os.getcwd(),
os.path.dirname(__file__))) +
"/logs/processor.log",
filemode="a",
level=logging.DEBUG
)
console = logging.StreamHandler()
console.setLevel(logging.WARNING)
logging.getLogger("").addHandler(console)
loop = asyncio.get_event_loop()
loop.run_until_complete(startup())
loop.run_forever()
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