summaryrefslogtreecommitdiffstats
path: root/vnftest/onap/onap_api_call.py
blob: 7cc68c33b58b968b19606aaadd287e3b22e38397 (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
##############################################################################
# Copyright 2018 EuropeanSoftwareMarketingLtd.
# ===================================================================
#  Licensed under the ApacheLicense, Version2.0 (the"License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#  http://www.apache.org/licenses/LICENSE-2.0
#
# software distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and limitations under
# the License
##############################################################################
from __future__ import absolute_import

import copy
import logging
import time

import os
import yaml

from vnftest.common import constants as consts
from vnftest.common import rest_client
from vnftest.common.exceptions import MandatoryKeyException, InputParameterMissing
from vnftest.crawlers.base import Crawler
from vnftest.onap.common.vnf_type_crawler import VnfTypeCrawler
from vnftest.steps import base

LOG = logging.getLogger(__name__)


class OnapApiCall(base.Step):

    __step_type__ = "OnapApiCall"

    def __init__(self, step_cfg, context_cfg, input_params):
        self.step_cfg = step_cfg
        self.context_cfg = context_cfg
        self.input_params = input_params
        self.input_cfg = None
        self.output_cfg = None
        self.rest_def_file = None
        self.setup_done = False
        self.curr_path = os.path.dirname(os.path.abspath(__file__))

    def setup(self):
        options = self.step_cfg['options']
        self.rest_def_file = options.get("file")
        self.input_cfg = options.get("input", {})
        self.output_cfg = options.get("output", {})
        self.sla_cfg = self.step_cfg.get('sla', {'retries': 0})
        self.setup_done = True

    def eval_input(self, params):
        for input_parameter in self.input_cfg:
            param_name = input_parameter['parameter_name']
            value = None
            if 'value' in input_parameter:
                value_def = input_parameter['value']
                value = self.format_string(value_def, self.input_params)
            if value is None or value == "":
                raise InputParameterMissing(param_name=param_name, source="task configuration")
            params[param_name] = value

    def run(self, result, attempt=0):
        output = self.run_impl(result)
        try:
            self.handle_sla(output)
        except AssertionError as e:
            LOG.info(str(e))
            if attempt < self.sla_cfg['retries']:
                time.sleep(self.sla_cfg['interval'])
                LOG.info("retry operation")
                attempt = attempt + 1
                return self.run(result, attempt)
            else:
                raise e
        return output

    def run_impl(self, result):
        if not self.setup_done:
            self.setup()
        output = {}
        params = copy.deepcopy(consts.component_constants)
        self.eval_input(params)
        execution_result = self.execute_operation(params)
        result_body = execution_result['body']
        for output_parameter in self.output_cfg:
            param_name = output_parameter['parameter_name']
            param_value = output_parameter['value']
            if param_value.find("[") > -1:
                crawler_type = output_parameter.get('type', 'default')
                crawler_class = Crawler.get_cls(crawler_type)
                crawler = crawler_class()
                param_value = crawler.crawl(result_body, param_value)
            if param_value is None:
                raise MandatoryKeyException(key_name='param_path', class_name=str(result_body))
            result[param_name] = param_value
            output[param_name] = param_value
        self.handle_sla(output)
        return output

    def execute_operation(self, params, attempt=0):
        try:
            return self.execute_operation_impl(params)
        except Exception as e:
            LOG.info(str(e))
            if attempt < 2:
                time.sleep(15)
                LOG.info("############# retry operation ##########")
                attempt = attempt + 1
                return self.execute_operation(params, attempt)
            else:
                raise e

    def execute_operation_impl(self, params):
        input_yaml = self.rest_def_file
        LOG.info("########## processing " + input_yaml + "##########")
        yaml_path = os.path.join(self.curr_path, input_yaml)
        with open(yaml_path) as info:
            operation = yaml.load(info)
        operation = self.format(operation, params)
        url = operation['url']
        headers = operation['headers']
        body = {}
        if 'body' in operation:
            body = operation['body']
        LOG.info(url)
        LOG.info(headers)
        LOG.info(body)
        if 'file' in operation:
            file_path = operation['file']
            LOG.info(file_path)
            files = {'upload': open(file_path)}
            result = rest_client.upload_file(url, headers, files, LOG)
        else:
            result = rest_client.call(url,
                                      operation['method'],
                                      headers,
                                      body,
                                      LOG)
        if result['return_code'] >= 300:
            raise RuntimeError(
                "Operation failed. return_code:{}, message:{}".format(result['return_code'], result['body']))
        LOG.info("Results: " + str(result))
        return result

    def format(self, d, params):
        ret = None
        if isinstance(d, dict):
            ret = {}
            for k, v in d.iteritems():
                if isinstance(v, basestring):
                    v = self.format_string(v, params)
                else:
                    v = self.format(v, params)
                ret[k] = v
        if isinstance(d, list):
            ret = []
            for v in d:
                if isinstance(v, basestring):
                    v = self.format_string(v, params)
                else:
                    v = self.format(v, params)
                ret.append(v)
        if isinstance(d, basestring):
            ret = self.format_string(d, params)
        return ret

    @staticmethod
    def format_string(st, params):
        try:
            return st.format(**params)
        except Exception as e:
            s = str(e)
            s = s.replace("'", "")
            LOG.info(s)
            params[s] = ""
            LOG.info("param" + params[s])
            return st.format(**params)

    def handle_sla(self, output):
        if 'assert' in self.sla_cfg and 'equals' in self.sla_cfg:
            value_def = self.sla_cfg['value']
            value = self.format_string(value_def, output)
            expected_value = self.sla_cfg['equals']
            assert value == expected_value