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#!/usr/bin/env python
##############################################################################
# Copyright (c) 2017 Huawei Technologies Co.,Ltd 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
##############################################################################
'''This file realize the function of run posca ping stress test script
This file contain several part:
Frist is create a script to realize several threading run'''

import utils.logger as log
import uuid
import json
import os
import sys
import time
import threading
import datetime
import Queue
from utils.parser import Parser as conf_parser
import utils.env_prepare.quota_prepare as quota_prepare
import utils.env_prepare.stack_prepare as stack_prepare
import utils.infra_setup.runner.yardstick as runner_yardstick

import testsuites.posca.testcase_dashboard.posca_stress_ping as DashBoard
import utils.infra_setup.runner.docker_env as docker_env
# --------------------------------------------------
# logging configuration
# --------------------------------------------------
LOG = log.Logger(__name__).getLogger()

test_dict = {
    "action": "runTestCase",
    "args": {
        "opts": {
            "task-args": {}
        },
        "testcase": "ping_bottlenecks"
    }
}
testfile = os.path.basename(__file__)
testcase, file_format = os.path.splitext(testfile)
cidr = "/home/opnfv/repos/yardstick/samples/storage_bottlenecks.yaml"
runner_DEBUG = True

q = Queue.Queue()


def env_pre(test_config):
    test_yardstick = False
    if "yardstick" in test_config["contexts"].keys():
        test_yardstick = True
    stack_prepare._prepare_env_daemon(test_yardstick)
    quota_prepare.quota_env_prepare()
    LOG.info("yardstick environment prepare!")
    if(test_config["contexts"]['yardstick_envpre']):
        stdout = runner_yardstick.yardstick_image_prepare()
        LOG.debug(stdout)


def do_test():
    func_name = sys._getframe().f_code.co_name
    out_file = ("/tmp/yardstick_" + str(uuid.uuid4()) + ".out")
    parameter_info = {}
    yardstick_container = docker_env.yardstick_info['container']
    cmd = runner_yardstick.yardstick_command_parser(debug=runner_DEBUG,
                                                    cidr=cidr,
                                                    outfile=out_file,
                                                    parameter=parameter_info)
    stdout = docker_env.docker_exec_cmd(yardstick_container, cmd)
    LOG.info(stdout)
    out_value = 0
    loop_value = 0
    while loop_value < 60:
        time.sleep(2)
        loop_value = loop_value + 1
        with open(out_file) as f:
            data = json.load(f)
            if data["result"]["criteria"] == "PASS":
                LOG.info("yardstick run success")
                out_value = 1
                break
            else:
                LOG.error("yardstick error exit")
                out_value = 0
                break
    q.put((out_value, func_name))
    return out_value


def config_to_result(num, out_num, during_date, result):
    testdata = {}
    test_result = {}
    test_result["number_of_stacks"] = float(num)
    test_result["success_times"] = out_num
    test_result["success_rate"] = out_num / num
    test_result["duration_time"] = during_date
    test_result["result"] = result
    testdata["data_body"] = test_result
    testdata["testcase"] = testcase
    return testdata


def func_run(condic):
    test_date = do_test()
    return test_date


def run(test_config):
    con_dic = test_config["load_manager"]
    test_num = con_dic['scenarios']['num_stack'].split(',')
    if test_config["contexts"]["yardstick_ip"] is None:
        con_dic["contexts"]["yardstick_ip"] =\
            conf_parser.ip_parser("yardstick_test_ip")

    if "dashboard" in test_config["contexts"].keys():
        if test_config["contexts"]["dashboard_ip"] is None:
            test_config["contexts"]["dashboard_ip"] =\
                conf_parser.ip_parser("dashboard")
        LOG.info("Create Dashboard data")
        DashBoard.posca_stress_ping(test_config["contexts"])

    env_pre(test_config)
    LOG.info("yardstick environment prepare done!")

    for value in test_num:
        result = []
        out_num = 0
        num = int(value)
        # pool = multiprocessing.Pool(processes=num)
        threadings = []
        LOG.info("begin to run %s thread" % num)

        starttime = datetime.datetime.now()

        for i in xrange(0, num):
            temp_thread = threading.Thread(target=func_run, args=(str(i),))
            threadings.append(temp_thread)
            temp_thread.start()
        for one_thread in threadings:
            one_thread.join()
        while not q.empty():
            result.append(q.get())
        for item in result:
            out_num = out_num + float(item[0])

        endtime = datetime.datetime.now()
        LOG.info("%s thread success %d times" % (num, out_num))
        during_date = (endtime - starttime).seconds

        if out_num >= con_dic["scenarios"]['threshhold']:
            criteria_result = "PASS"
        else:
            criteria_result = "FAIL"

        data_reply = config_to_result(num, out_num, during_date,
                                      criteria_result)
        if "dashboard" in test_config["contexts"].keys():
            DashBoard.dashboard_send_data(test_config['contexts'], data_reply)
        conf_parser.result_to_file(data_reply, test_config["out_file"])

        if criteria_result is "FAIL":
            break
    LOG.info('END POSCA stress ping test')
    return criteria_result