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##############################################################################
# Copyright (c) 2018 Sawyer Bergeron, Parker Berberian, and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from django.db import models
from django.contrib.auth.models import User
from django.core import serializers
from django.http import HttpResponse, JsonResponse
import json
import uuid
import random
from resource_inventory.models import *
from booking.models import Booking
from workflow.workflow_factory import WorkflowFactory, MetaStep, MetaRelation
from workflow.models import Repository, Confirmation_Step
import logging
logger = logging.getLogger(__name__)
class SessionManager():
def __init__(self, request=None):
self.repository = Repository()
self.repository.el[self.repository.SESSION_USER] = request.user
self.repository.el['active_step'] = 0
self.steps = []
self.factory = WorkflowFactory()
c_step = WorkflowFactory().make_step(Confirmation_Step, self.repository)
self.steps.append(c_step)
metaconfirm = MetaStep()
metaconfirm.index = 0
metaconfirm.short_title = "confirm"
self.repository.el['steps'] = 1;
self.metaworkflow = None
self.metaworkflows = []
self.metarelations = []
self.relationreverselookup = {}
self.initialized = False
self.active_index = 0
self.step_meta = [metaconfirm]
self.relation_depth = 0
def add_workflow(self, workflow_type=None, target_id=None, **kwargs):
if target_id is not None:
self.prefill_repo(target_id, workflow_type)
factory_steps, meta_info = self.factory.conjure(workflow_type=workflow_type, repo=self.repository)
offset = len(meta_info)
for relation in self.metarelations:
if relation.depth > self.relation_depth:
self.relation_depth = relation.depth
if relation.parent >= self.repository.el['active_step']:
relation.parent += offset
for i in range(0, len(relation.children)):
if relation.children[i] >= self.repository.el['active_step']:
relation.children[i] += offset
self.step_meta[self.active_index:self.active_index] = meta_info
self.steps[self.active_index:self.active_index] = factory_steps
if self.initialized:
relation = MetaRelation()
relation.parent = self.repository.el['active_step'] + offset
relation.depth = self.relationreverselookup[self.step_meta[relation.parent]].depth + 1
if relation.depth > self.relation_depth:
self.relation_depth = relation.depth
for i in range(self.repository.el['active_step'], offset + self.repository.el['active_step']):
relation.children.append(i)
self.relationreverselookup[self.step_meta[i]] = relation
relation.color = "#%06x" % random.randint(0, 0xFFFFFF)
self.metarelations.append(relation)
else:
relation = MetaRelation()
relation.depth = 0
relation.parent = 500000000000
for i in range(0, len(self.step_meta)):
relation.children.append(i)
self.relationreverselookup[self.step_meta[i]] = relation
self.metarelations.append(relation)
self.initialized = True
def status(self, request):
try:
workflows = []
steps = []
for step in self.step_meta:
steps.append(step.to_json())
parents = {}
children = {}
responsejson = {}
responsejson["steps"] = steps
responsejson["active"] = self.repository.el['active_step']
responsejson["relations"] = []
i = 0
for relation in self.metarelations:
responsejson["relations"].append(relation.to_json())
children[relation.parent] = i
for child in relation.children:
parents[child] = i
i += 1
responsejson['max_depth'] = self.relation_depth
responsejson['parents'] = parents
responsejson['children'] = children
return JsonResponse(responsejson, safe=False)
except Exception as e:
pass
def render(self, request, **kwargs):
#filter out when a step needs to handle post/form data
# if 'workflow' in post data, this post request was meant for me, not step
if request.method == 'POST' and request.POST.get('workflow', None) is None:
return self.steps[self.active_index].post_render(request)
return self.steps[self.active_index].render(request)
def post_render(self, request):
return self.steps[self.active_index].post_render(request)
def goto(self, num, **kwargs):
self.repository.el['active_step'] = int(num)
self.active_index = int(num)
#TODO: change to include some checking
def prefill_repo(self, target_id, workflow_type):
self.repository.el[self.repository.EDIT] = True
edit_object = None
if workflow_type == 0:
edit_object = Booking.objects.get(pk=target_id)
self.prefill_booking(edit_object)
elif workflow_type == 1:
edit_object = GenericResourceBundle.objects.get(pk=target_id)
self.prefill_resource(edit_object)
elif workflow_type == 2:
edit_object = ConfigBundle.objects.get(pk=target_id)
self.prefill_config(edit_object)
def prefill_booking(self, booking):
models = self.make_booking_models(booking)
confirmation = self.make_booking_confirm(booking)
self.repository.el[self.repository.BOOKING_MODELS] = models
self.repository.el[self.repository.CONFIRMATION] = confirmation
self.repository.el[self.repository.GRESOURCE_BUNDLE_MODELS] = self.make_grb_models(booking.resource.template)
self.repository.el[self.repository.BOOKING_SELECTED_GRB] = self.make_grb_models(booking.resource.template)['bundle']
self.repository.el[self.repository.CONFIG_MODELS] = self.make_config_models(booking.config_bundle)
def prefill_resource(self, resource):
models = self.make_grb_models(resource)
confirm = self.make_grb_confirm(resource)
self.repository.el[self.repository.GRESOURCE_BUNDLE_MODELS] = models
self.repository.el[self.repository.CONFIRMATION] = confirm
def prefill_config(self, config):
models = self.make_config_models(config)
confirm = self.make_config_confirm(config)
self.repository.el[self.repository.CONFIG_MODELS] = models
self.repository.el[self.repository.CONFIRMATION] = confirm
grb_models = self.make_grb_models(config.bundle)
self.repository.el[self.repository.GRESOURCE_BUNDLE_MODELS] = grb_models
self.repository.el[self.repository.SWCONF_SELECTED_GRB] = config.bundle
def make_grb_models(self, resource):
models = self.repository.el.get(self.repository.GRESOURCE_BUNDLE_MODELS, {})
models['hosts'] = []
models['bundle'] = resource
models['interfaces'] = {}
models['vlans'] = {}
for host in resource.getHosts():
models['hosts'].append(host)
models['interfaces'][host.resource.name] = []
models['vlans'][host.resource.name] = {}
for interface in host.generic_interfaces.all():
models['interfaces'][host.resource.name].append(interface)
models['vlans'][host.resource.name][interface.profile.name] = []
for vlan in interface.vlans.all():
models['vlans'][host.resource.name][interface.profile.name].append(vlan)
return models
def make_grb_confirm(self, resource):
confirm = self.repository.el.get(self.repository.CONFIRMATION, {})
confirm['resource'] = {}
confirm['resource']['hosts'] = []
confirm['resource']['lab'] = resource.lab.lab_user.username
for host in resource.getHosts():
confirm['resource']['hosts'].append({"name": host.resource.name, "profile": host.profile.name})
return confirm
def make_config_models(self, config):
models = self.repository.el.get(self.repository.CONFIG_MODELS, {})
models['bundle'] = config
models['host_configs'] = []
for host_conf in HostConfiguration.objects.filter(bundle=config):
models['host_configs'].append(host_conf)
models['opnfv'] = OPNFVConfig.objects.filter(bundle=config).last()
return models
def make_config_confirm(self, config):
confirm = self.repository.el.get(self.repository.CONFIRMATION, {})
confirm['configuration'] = {}
confirm['configuration']['hosts'] = []
confirm['configuration']['name'] = config.name
confirm['configuration']['description'] = config.description
opnfv = OPNFVConfig.objects.filter(bundle=config).last()
confirm['configuration']['installer'] = opnfv.installer.name
confirm['configuration']['scenario'] = opnfv.scenario.name
for host_conf in HostConfiguration.objects.filter(bundle=config):
h = {"name": host_conf.host.resource.name, "image": host_conf.image.name, "role": host_conf.opnfvRole.name}
confirm['configuration']['hosts'].append(h)
return confirm
def make_booking_models(self, booking):
models = self.repository.el.get(self.repository.BOOKING_MODELS, {})
models['booking'] = booking
models['collaborators'] = []
for user in booking.collaborators.all():
models['collaborators'].append(user)
return models
def make_booking_confirm(self, booking):
confirm = self.repository.el.get(self.repository.CONFIRMATION, {})
confirm['booking'] = {}
confirm['booking']['length'] = (booking.end - booking.start).days
confirm['booking']['project'] = booking.project
confirm['booking']['purpose'] = booking.purpose
confirm['booking']['resource name'] = booking.resource.template.name
confirm['booking']['configuration name'] = booking.config_bundle.name
confirm['booking']['collaborators'] = []
for user in booking.collaborators.all():
confirm['booking']['collaborators'].append(user.username)
return confirm
class ManagerTracker():
instance = None
managers = {}
def __init__(self):
pass
@staticmethod
def getInstance():
if ManagerTracker.instance is None:
ManagerTracker.instance = ManagerTracker()
return ManagerTracker.instance
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