{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import pymongo"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "mongoClient = pymongo.MongoClient()\n",
    "mongoDB = mongoClient.testDB\n",
    "mongoCollection = mongoDB.testCollection"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "import datetime\n",
    "post = {\"author\": \"Mike\",\n",
    "        \"text\": \"My first blog post!\",\n",
    "        \"tags\": [\"mongodb\", \"python\", \"pymongo\"],\n",
    "        \"date\": datetime.datetime.utcnow()}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "ename": "NameError",
     "evalue": "name 'db' is not defined",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mNameError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[1;32mf:\\Jianshun\\analyseScript\\testMongoDB.ipynb Cell 4\u001b[0m in \u001b[0;36m1\n\u001b[1;32m----> <a href='vscode-notebook-cell:/f%3A/Jianshun/analyseScript/testMongoDB.ipynb#W6sZmlsZQ%3D%3D?line=0'>1</a>\u001b[0m posts \u001b[39m=\u001b[39m db\u001b[39m.\u001b[39mposts\n\u001b[0;32m      <a href='vscode-notebook-cell:/f%3A/Jianshun/analyseScript/testMongoDB.ipynb#W6sZmlsZQ%3D%3D?line=1'>2</a>\u001b[0m post_id \u001b[39m=\u001b[39m posts\u001b[39m.\u001b[39minsert_one(post)\u001b[39m.\u001b[39minserted_id\n\u001b[0;32m      <a href='vscode-notebook-cell:/f%3A/Jianshun/analyseScript/testMongoDB.ipynb#W6sZmlsZQ%3D%3D?line=2'>3</a>\u001b[0m post_id\n",
      "\u001b[1;31mNameError\u001b[0m: name 'db' is not defined"
     ]
    }
   ],
   "source": [
    "posts = mongoCollection.posts\n",
    "post_id = posts.insert_one(post).inserted_id\n",
    "post_id"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Task executing\n",
      "\n",
      "Task2 executing \n",
      "\n",
      "Task2 done\n",
      "\n",
      "Task done\n",
      "\n"
     ]
    }
   ],
   "source": [
    "from time import sleep\n",
    "from multiprocessing.pool import ThreadPool\n",
    " \n",
    "# task executed in a worker thread\n",
    "def task():\n",
    "    # report a message\n",
    "    print(f'Task executing\\n')\n",
    "    # block for a moment\n",
    "    sleep(1)\n",
    "    # report a message\n",
    "    print(f'Task done\\n')\n",
    "    \n",
    "def task2():\n",
    "    # report a message\n",
    "    print(f'Task2 executing \\n')\n",
    "    # block for a moment\n",
    "    sleep(1)\n",
    "    # report a message\n",
    "    print(f'Task2 done\\n')\n",
    " \n",
    "# protect the entry point\n",
    "if __name__ == '__main__':\n",
    "    # create and configure the thread pool\n",
    "    pool = ThreadPool()\n",
    "    # issue tasks to the thread pool\n",
    "    pool.apply_async(task)\n",
    "    pool.apply_async(task2)\n",
    "    # close the thread pool\n",
    "    pool.close()\n",
    "    # wait for all tasks to finish\n",
    "    pool.join()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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