summaryrefslogtreecommitdiffstats
path: root/src/workflow/workflow_manager.py
blob: 1d672cf17f7bd6da1182e5b86c11b8b8c90a9a82 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
##############################################################################
# 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.http import JsonResponse

import random

from booking.models import Booking
from workflow.workflow_factory import WorkflowFactory, MetaStep
from workflow.models import Repository
from resource_inventory.models import (
    GenericResourceBundle,
    ConfigBundle,
    HostConfiguration,
    OPNFVConfig
)

import logging
logger = logging.getLogger(__name__)


class SessionManager():
    def active_workflow(self):
        return self.workflows[-1]

    def __init__(self, request=None):
        self.workflows = []

        self.owner = request.user

        self.factory = WorkflowFactory()

    def add_workflow(self, workflow_type=None, target_id=None, **kwargs):
        if target_id is not None:
            self.prefill_repo(target_id, workflow_type)

        repo = Repository()
        if(len(self.workflows) >= 1):
            defaults = self.workflows[-1].repository.get_child_defaults()
            repo.set_defaults(defaults)
            repo.el[repo.HAS_RESULT] = False
        repo.el[repo.SESSION_USER] = self.owner
        self.workflows.append(self.factory.create_workflow(workflow_type=workflow_type, repo = repo))

    def pop_workflow(self):
        if( len(self.workflows) <= 1 ):
            return False

        if self.workflows[-1].repository.el[self.workflows[-1].repository.HAS_RESULT]:
            key = self.workflows[-1].repository.el[self.workflows[-1].repository.RESULT_KEY]
            result = self.workflows[-1].repository.el[self.workflows[-1].repository.RESULT]
            self.workflows[-2].repository.el[key] = result
        self.workflows.pop()
        return True

    def status(self, request):
        try:
            meta_steps = []
            for step in self.active_workflow().metasteps:
                meta_steps.append(step.to_json())
            responsejson = {}
            responsejson["steps"] = meta_steps
            responsejson["active"] = self.active_workflow().repository.el['active_step']
            responsejson["workflow_count"] = len(self.workflows)
            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.active_workflow().steps[self.active_workflow().active_index].post_render(request)
        return self.active_workflow().steps[self.active_workflow().active_index].render(request)

    def post_render(self, request):
        return self.active_workflow().steps[self.active_workflow().active_index].post_render(request)

    def goto(self, num, **kwargs):
        self.active_workflow().repository.el['active_step'] = int(num)
        self.active_workflow().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.active_workflow().repository.el[self.active_workflow().repository.BOOKING_MODELS] = models
        self.active_workflow().repository.el[self.active_workflow().repository.CONFIRMATION] = confirmation
        self.active_workflow().repository.el[self.active_workflow().repository.GRESOURCE_BUNDLE_MODELS] = self.make_grb_models(booking.resource.template)
        self.active_workflow().repository.el[self.active_workflow().repository.SELECTED_GRESOURCE_BUNDLE] = self.make_grb_models(booking.resource.template)['bundle']
        self.active_workflow().repository.el[self.active_workflow().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.active_workflow().repository.el[self.active_workflow().repository.GRESOURCE_BUNDLE_MODELS] = models
        self.active_workflow().repository.el[self.active_workflow().repository.CONFIRMATION] = confirm

    def prefill_config(self, config):
        models = self.make_config_models(config)
        confirm = self.make_config_confirm(config)
        self.active_workflow().repository.el[self.active_workflow().repository.CONFIG_MODELS] = models
        self.active_workflow().repository.el[self.active_workflow().repository.CONFIRMATION] = confirm
        grb_models = self.make_grb_models(config.bundle)
        self.active_workflow().repository.el[self.active_workflow().repository.GRESOURCE_BUNDLE_MODELS] = grb_models

    def make_grb_models(self, resource):
        models = self.active_workflow().repository.el.get(self.active_workflow().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.active_workflow().repository.el.get(self.active_workflow().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.active_workflow().repository.el.get(self.active_workflow().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.active_workflow().repository.el.get(self.active_workflow().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.active_workflow().repository.el.get(self.active_workflow().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.active_workflow().repository.el.get(self.active_workflow().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