cache-maintenance.ipynb

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   "source": [
    "from pymongo import MongoClient"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "class TwitterSearchApp:\n",
    "    def __init__(self, max_cache_size=100):\n",
    "        self.max_cache_size = max_cache_size\n",
    "        self.cache = {}\n",
    "        self.client = MongoClient('mongodb://localhost:27017/')\n",
    "        self.cache_collection = self.client['twitter_db']['cache']\n",
    "\n",
    "    def load_cache_from_mongodb(self):\n",
    "        cache_data = self.cache_collection.find_one()\n",
    "        if cache_data:\n",
    "            self.cache = cache_data['cache']\n",
    "\n",
    "    def search_tweets(self, keyword):\n",
    "        if keyword in self.cache:\n",
    "            print(\"Result found in cache:\")\n",
    "            return self.cache[keyword]\n",
    "        else:\n",
    "            print(\"Searching in MongoDB:\")\n",
    "            # Placeholder for MongoDB query, replace with actual query to search for tweets\n",
    "            result = self.query_mongodb(keyword)\n",
    "            if len(self.cache) < self.max_cache_size:\n",
    "                self.cache[keyword] = result\n",
    "                self.cache_collection.update_one({}, {'$set': {'cache': self.cache}}, upsert=True)\n",
    "            return result\n",
    "\n",
    "    def query_mongodb(self, keyword):\n",
    "        # Placeholder for MongoDB query, replace with actual query to search for tweets\n",
    "        return f\"Dummy result for {keyword}\"\n",
    "\n",
    "    def shutdown(self):\n",
    "        self.cache_collection.update_one({}, {'$set': {'cache': self.cache}}, upsert=True)\n",
    "        self.client.close()\n",
    "\n",
    "# Example usage\n",
    "if __name__ == \"__main__\":\n",
    "    app = TwitterSearchApp(max_cache_size=10)\n",
    "    app.load_cache_from_mongodb()\n",
    "\n",
    "    # Example searches\n",
    "    print(app.search_tweets(\"python\"))\n",
    "    print(app.search_tweets(\"mongodb\"))\n",
    "    print(app.search_tweets(\"data science\"))\n",
    "\n",
    "    app.shutdown()"
   ]
  }
 ],
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