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devicehub-teal/ereuse_devicehub/resources/action/views/views.py

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""" This is the view for Snapshots """
from datetime import timedelta
from distutils.version import StrictVersion
from uuid import UUID
from flask import current_app as app, request, g
from teal.db import ResourceNotFound
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from teal.marshmallow import ValidationError
from teal.resource import View
from ereuse_devicehub.db import db
from ereuse_devicehub.query import things_response
from ereuse_devicehub.resources.action.models import (Action, Snapshot, VisualTest,
InitTransfer, Live, Allocate, Deallocate,
Trade, Confirm, ConfirmRevoke, Revoke)
from ereuse_devicehub.resources.action.views import trade as trade_view
from ereuse_devicehub.resources.action.views.snapshot import SnapshotView, save_json, move_json
from ereuse_devicehub.resources.device.models import Device, Computer, DataStorage
from ereuse_devicehub.resources.enums import Severity
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SUPPORTED_WORKBENCH = StrictVersion('11.0')
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class AllocateMix():
model = None
def post(self):
""" Create one res_obj """
res_json = request.get_json()
res_obj = self.model(**res_json)
db.session.add(res_obj)
db.session().final_flush()
ret = self.schema.jsonify(res_obj)
ret.status_code = 201
db.session.commit()
return ret
def find(self, args: dict):
res_objs = self.model.query.filter_by(author=g.user) \
.order_by(self.model.created.desc()) \
.paginate(per_page=200)
return things_response(
self.schema.dump(res_objs.items, many=True, nested=0),
res_objs.page, res_objs.per_page, res_objs.total,
res_objs.prev_num, res_objs.next_num
)
class AllocateView(AllocateMix, View):
model = Allocate
class DeallocateView(AllocateMix, View):
model = Deallocate
class LiveView(View):
def post(self):
"""Posts an action."""
res_json = request.get_json(validate=False)
tmp_snapshots = app.config['TMP_LIVES']
path_live = save_json(res_json, tmp_snapshots, '', live=True)
res_json.pop('debug', None)
res_json.pop('elapsed', None)
res_json.pop('os', None)
res_json_valid = self.schema.load(res_json)
live = self.live(res_json_valid)
db.session.add(live)
db.session().final_flush()
ret = self.schema.jsonify(live)
ret.status_code = 201
db.session.commit()
move_json(tmp_snapshots, path_live, '', live=True)
return ret
def get_hdd_details(self, snapshot, device):
"""We get the liftime and serial_number of the disk"""
usage_time_hdd = None
serial_number = None
components = [c for c in snapshot['components']]
components.sort(key=lambda x: x.created)
for hd in components:
if not isinstance(hd, DataStorage):
continue
serial_number = hd.serial_number
for act in hd.actions:
if not act.type == "TestDataStorage":
continue
usage_time_hdd = act.lifetime
break
if usage_time_hdd:
break
if not serial_number:
"""There aren't any disk"""
raise ResourceNotFound("There aren't any disk in this device {}".format(device))
return usage_time_hdd, serial_number
def get_hid(self, snapshot):
device = snapshot.get('device') # type: Computer
components = snapshot.get('components')
if not device:
return None
if not components:
return device.hid
macs = [c.serial_number for c in components
if c.type == 'NetworkAdapter' and c.serial_number is not None]
macs.sort()
mac = ''
hid = device.hid
if not hid:
return hid
if macs:
mac = "-{mac}".format(mac=macs[0])
hid += mac
return hid
def live(self, snapshot):
"""If the device.allocated == True, then this snapshot create an action live."""
hid = self.get_hid(snapshot)
if not hid or not Device.query.filter(
Device.hid == hid).count():
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raise ValidationError('Device not exist.')
device = Device.query.filter(
Device.hid == hid, Device.allocated == True).one()
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# Is not necessary
if not device:
raise ValidationError('Device not exist.')
if not device.allocated:
raise ValidationError('Sorry this device is not allocated.')
usage_time_hdd, serial_number = self.get_hdd_details(snapshot, device)
data_live = {'usage_time_hdd': usage_time_hdd,
'serial_number': serial_number,
'snapshot_uuid': snapshot['uuid'],
'description': '',
'software': snapshot['software'],
'software_version': snapshot['version'],
'licence_version': snapshot['licence_version'],
'author_id': device.owner_id,
'agent_id': device.owner.individual.id,
'device': device}
live = Live(**data_live)
if not usage_time_hdd:
warning = f"We don't found any TestDataStorage for disk sn: {serial_number}"
live.severity = Severity.Warning
live.description = warning
return live
live.sort_actions()
diff_time = live.diff_time()
if diff_time is None:
warning = "Don't exist one previous live or snapshot as reference"
live.description += warning
live.severity = Severity.Warning
elif diff_time < timedelta(0):
warning = "The difference with the last live/snapshot is negative"
live.description += warning
live.severity = Severity.Warning
return live
class ActionView(View):
def post(self):
"""Posts an action."""
json = request.get_json(validate=False)
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if not json or 'type' not in json:
raise ValidationError('Post request needs a json.')
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# todo there should be a way to better get subclassess resource
# defs
resource_def = app.resources[json['type']]
if json['type'] == Snapshot.t:
snapshot = SnapshotView(json, resource_def, self.schema)
return snapshot.post()
if json['type'] == VisualTest.t:
pass
# TODO JN add compute rate with new visual test and old components device
if json['type'] == InitTransfer.t:
return self.transfer_ownership()
if json['type'] == Trade.t:
trade = trade_view.TradeView(json, resource_def, self.schema)
return trade.post()
if json['type'] == Confirm.t:
confirm = trade_view.ConfirmView(json, resource_def, self.schema)
return confirm.post()
if json['type'] == Revoke.t:
revoke = trade_view.RevokeView(json, resource_def, self.schema)
return revoke.post()
if json['type'] == ConfirmRevoke.t:
confirm_revoke = trade_view.ConfirmRevokeView(json, resource_def, self.schema)
return confirm_revoke.post()
a = resource_def.schema.load(json)
Model = db.Model._decl_class_registry.data[json['type']]()
action = Model(**a)
db.session.add(action)
db.session().final_flush()
ret = self.schema.jsonify(action)
ret.status_code = 201
db.session.commit()
return ret
def one(self, id: UUID):
"""Gets one action."""
action = Action.query.filter_by(id=id).one()
return self.schema.jsonify(action)
def transfer_ownership(self):
"""Perform a InitTransfer action to change author_id of device"""
pass