ayon-core/pype/modules/ftrack/lib/io_nonsingleton.py
2020-06-21 15:52:04 +02:00

460 lines
14 KiB
Python

"""
Wrapper around interactions with the database
Copy of io module in avalon-core.
- In this case not working as singleton with api.Session!
"""
import os
import time
import errno
import shutil
import logging
import tempfile
import functools
import contextlib
from avalon import schema
from avalon.vendor import requests
from avalon.io import extract_port_from_url
# Third-party dependencies
import pymongo
def auto_reconnect(func):
"""Handling auto reconnect in 3 retry times"""
@functools.wraps(func)
def decorated(*args, **kwargs):
object = args[0]
for retry in range(3):
try:
return func(*args, **kwargs)
except pymongo.errors.AutoReconnect:
object.log.error("Reconnecting..")
time.sleep(0.1)
else:
raise
return decorated
class DbConnector(object):
log = logging.getLogger(__name__)
def __init__(self):
self.Session = {}
self._mongo_client = None
self._sentry_client = None
self._sentry_logging_handler = None
self._database = None
self._is_installed = False
def __getitem__(self, key):
# gives direct access to collection withou setting `active_table`
return self._database[key]
def __getattribute__(self, attr):
# not all methods of PyMongo database are implemented with this it is
# possible to use them too
try:
return super(DbConnector, self).__getattribute__(attr)
except AttributeError:
cur_proj = self.Session["AVALON_PROJECT"]
return self._database[cur_proj].__getattribute__(attr)
def install(self):
"""Establish a persistent connection to the database"""
if self._is_installed:
return
logging.basicConfig()
self.Session.update(self._from_environment())
timeout = int(self.Session["AVALON_TIMEOUT"])
mongo_url = self.Session["AVALON_MONGO"]
kwargs = {
"host": mongo_url,
"serverSelectionTimeoutMS": timeout
}
port = extract_port_from_url(mongo_url)
if port is not None:
kwargs["port"] = int(port)
self._mongo_client = pymongo.MongoClient(**kwargs)
for retry in range(3):
try:
t1 = time.time()
self._mongo_client.server_info()
except Exception:
self.log.error("Retrying..")
time.sleep(1)
timeout *= 1.5
else:
break
else:
raise IOError(
"ERROR: Couldn't connect to %s in "
"less than %.3f ms" % (self.Session["AVALON_MONGO"], timeout))
self.log.info("Connected to %s, delay %.3f s" % (
self.Session["AVALON_MONGO"], time.time() - t1))
self._install_sentry()
self._database = self._mongo_client[self.Session["AVALON_DB"]]
self._is_installed = True
def _install_sentry(self):
if "AVALON_SENTRY" not in self.Session:
return
try:
from raven import Client
from raven.handlers.logging import SentryHandler
from raven.conf import setup_logging
except ImportError:
# Note: There was a Sentry address in this Session
return self.log.warning("Sentry disabled, raven not installed")
client = Client(self.Session["AVALON_SENTRY"])
# Transmit log messages to Sentry
handler = SentryHandler(client)
handler.setLevel(logging.WARNING)
setup_logging(handler)
self._sentry_client = client
self._sentry_logging_handler = handler
self.log.info(
"Connected to Sentry @ %s" % self.Session["AVALON_SENTRY"]
)
def _from_environment(self):
Session = {
item[0]: os.getenv(item[0], item[1])
for item in (
# Root directory of projects on disk
("AVALON_PROJECTS", None),
# Name of current Project
("AVALON_PROJECT", ""),
# Name of current Asset
("AVALON_ASSET", ""),
# Name of current silo
("AVALON_SILO", ""),
# Name of current task
("AVALON_TASK", None),
# Name of current app
("AVALON_APP", None),
# Path to working directory
("AVALON_WORKDIR", None),
# Name of current Config
# TODO(marcus): Establish a suitable default config
("AVALON_CONFIG", "no_config"),
# Name of Avalon in graphical user interfaces
# Use this to customise the visual appearance of Avalon
# to better integrate with your surrounding pipeline
("AVALON_LABEL", "Avalon"),
# Used during any connections to the outside world
("AVALON_TIMEOUT", "1000"),
# Address to Asset Database
("AVALON_MONGO", "mongodb://localhost:27017"),
# Name of database used in MongoDB
("AVALON_DB", "avalon"),
# Address to Sentry
("AVALON_SENTRY", None),
# Address to Deadline Web Service
# E.g. http://192.167.0.1:8082
("AVALON_DEADLINE", None),
# Enable features not necessarily stable. The user's own risk
("AVALON_EARLY_ADOPTER", None),
# Address of central asset repository, contains
# the following interface:
# /upload
# /download
# /manager (optional)
("AVALON_LOCATION", "http://127.0.0.1"),
# Boolean of whether to upload published material
# to central asset repository
("AVALON_UPLOAD", None),
# Generic username and password
("AVALON_USERNAME", "avalon"),
("AVALON_PASSWORD", "secret"),
# Unique identifier for instances in working files
("AVALON_INSTANCE_ID", "avalon.instance"),
("AVALON_CONTAINER_ID", "avalon.container"),
# Enable debugging
("AVALON_DEBUG", None),
) if os.getenv(item[0], item[1]) is not None
}
Session["schema"] = "avalon-core:session-2.0"
try:
schema.validate(Session)
except schema.ValidationError as e:
# TODO(marcus): Make this mandatory
self.log.warning(e)
return Session
def uninstall(self):
"""Close any connection to the database"""
try:
self._mongo_client.close()
except AttributeError:
pass
self._mongo_client = None
self._database = None
self._is_installed = False
def active_project(self):
"""Return the name of the active project"""
return self.Session["AVALON_PROJECT"]
def activate_project(self, project_name):
self.Session["AVALON_PROJECT"] = project_name
def projects(self):
"""List available projects
Returns:
list of project documents
"""
collection_names = self.collections()
for project in collection_names:
if project in ("system.indexes",):
continue
# Each collection will have exactly one project document
document = self.find_project(project)
if document is not None:
yield document
def locate(self, path):
"""Traverse a hierarchy from top-to-bottom
Example:
representation = locate(["hulk", "Bruce", "modelDefault", 1, "ma"])
Returns:
representation (ObjectId)
"""
components = zip(
("project", "asset", "subset", "version", "representation"),
path
)
parent = None
for type_, name in components:
latest = (type_ == "version") and name in (None, -1)
try:
if latest:
parent = self.find_one(
filter={
"type": type_,
"parent": parent
},
projection={"_id": 1},
sort=[("name", -1)]
)["_id"]
else:
parent = self.find_one(
filter={
"type": type_,
"name": name,
"parent": parent
},
projection={"_id": 1},
)["_id"]
except TypeError:
return None
return parent
@auto_reconnect
def collections(self):
return self._database.collection_names()
@auto_reconnect
def find_project(self, project):
return self._database[project].find_one({"type": "project"})
@auto_reconnect
def insert_one(self, item):
assert isinstance(item, dict), "item must be of type <dict>"
schema.validate(item)
return self._database[self.Session["AVALON_PROJECT"]].insert_one(item)
@auto_reconnect
def insert_many(self, items, ordered=True):
# check if all items are valid
assert isinstance(items, list), "`items` must be of type <list>"
for item in items:
assert isinstance(item, dict), "`item` must be of type <dict>"
schema.validate(item)
return self._database[self.Session["AVALON_PROJECT"]].insert_many(
items,
ordered=ordered)
@auto_reconnect
def find(self, filter, projection=None, sort=None):
return self._database[self.Session["AVALON_PROJECT"]].find(
filter=filter,
projection=projection,
sort=sort
)
@auto_reconnect
def find_one(self, filter, projection=None, sort=None):
assert isinstance(filter, dict), "filter must be <dict>"
return self._database[self.Session["AVALON_PROJECT"]].find_one(
filter=filter,
projection=projection,
sort=sort
)
@auto_reconnect
def save(self, *args, **kwargs):
return self._database[self.Session["AVALON_PROJECT"]].save(
*args, **kwargs)
@auto_reconnect
def replace_one(self, filter, replacement):
return self._database[self.Session["AVALON_PROJECT"]].replace_one(
filter, replacement)
@auto_reconnect
def update_many(self, filter, update):
return self._database[self.Session["AVALON_PROJECT"]].update_many(
filter, update)
@auto_reconnect
def distinct(self, *args, **kwargs):
return self._database[self.Session["AVALON_PROJECT"]].distinct(
*args, **kwargs)
@auto_reconnect
def drop(self, *args, **kwargs):
return self._database[self.Session["AVALON_PROJECT"]].drop(
*args, **kwargs)
@auto_reconnect
def delete_many(self, *args, **kwargs):
return self._database[self.Session["AVALON_PROJECT"]].delete_many(
*args, **kwargs)
def parenthood(self, document):
assert document is not None, "This is a bug"
parents = list()
while document.get("parent") is not None:
document = self.find_one({"_id": document["parent"]})
if document is None:
break
if document.get("type") == "master_version":
_document = self.find_one({"_id": document["version_id"]})
document["data"] = _document["data"]
parents.append(document)
return parents
@contextlib.contextmanager
def tempdir(self):
tempdir = tempfile.mkdtemp()
try:
yield tempdir
finally:
shutil.rmtree(tempdir)
def download(self, src, dst):
"""Download `src` to `dst`
Arguments:
src (str): URL to source file
dst (str): Absolute path to destination file
Yields tuple (progress, error):
progress (int): Between 0-100
error (Exception): Any exception raised when first making connection
"""
try:
response = requests.get(
src,
stream=True,
auth=requests.auth.HTTPBasicAuth(
self.Session["AVALON_USERNAME"],
self.Session["AVALON_PASSWORD"]
)
)
except requests.ConnectionError as e:
yield None, e
return
with self.tempdir() as dirname:
tmp = os.path.join(dirname, os.path.basename(src))
with open(tmp, "wb") as f:
total_length = response.headers.get("content-length")
if total_length is None: # no content length header
f.write(response.content)
else:
downloaded = 0
total_length = int(total_length)
for data in response.iter_content(chunk_size=4096):
downloaded += len(data)
f.write(data)
yield int(100.0 * downloaded / total_length), None
try:
os.makedirs(os.path.dirname(dst))
except OSError as e:
# An already existing destination directory is fine.
if e.errno != errno.EEXIST:
raise
shutil.copy(tmp, dst)