185 lines
6.4 KiB
Python
185 lines
6.4 KiB
Python
# -*- coding: utf-8 -*-
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# @Author : relakkes@gmail.com
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# @Time : 2024/1/14 19:34
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# @Desc : B站存储实现类
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import asyncio
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import csv
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import json
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import os
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import pathlib
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from typing import Dict
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import aiofiles
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from tortoise.contrib.pydantic import pydantic_model_creator
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from base.base_crawler import AbstractStore
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from tools import utils
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from var import crawler_type_var
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class BiliCsvStoreImplement(AbstractStore):
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csv_store_path: str = "data/bilibili"
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def make_save_file_name(self, store_type: str) -> str:
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"""
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make save file name by store type
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Args:
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store_type: contents or comments
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Returns: eg: data/bilibili/search_comments_20240114.csv ...
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"""
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return f"{self.csv_store_path}/{crawler_type_var.get()}_{store_type}_{utils.get_current_date()}.csv"
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async def save_data_to_csv(self, save_item: Dict, store_type: str):
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"""
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Below is a simple way to save it in CSV format.
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Args:
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save_item: save content dict info
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store_type: Save type contains content and comments（contents | comments）
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Returns: no returns
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"""
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pathlib.Path(self.csv_store_path).mkdir(parents=True, exist_ok=True)
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save_file_name = self.make_save_file_name(store_type=store_type)
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async with aiofiles.open(save_file_name, mode='a+', encoding="utf-8-sig", newline="") as f:
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writer = csv.writer(f)
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if await f.tell() == 0:
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await writer.writerow(save_item.keys())
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await writer.writerow(save_item.values())
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async def store_content(self, content_item: Dict):
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"""
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Bilibili content CSV storage implementation
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Args:
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content_item: note item dict
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Returns:
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"""
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await self.save_data_to_csv(save_item=content_item, store_type="contents")
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async def store_comment(self, comment_item: Dict):
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"""
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Bilibili comment CSV storage implementation
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Args:
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comment_item: comment item dict
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Returns:
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"""
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await self.save_data_to_csv(save_item=comment_item, store_type="comments")
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class BiliDbStoreImplement(AbstractStore):
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async def store_content(self, content_item: Dict):
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"""
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Bilibili content DB storage implementation
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Args:
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content_item: content item dict
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Returns:
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"""
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from .bilibili_store_db_types import BilibiliVideo
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video_id = content_item.get("video_id")
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if not await BilibiliVideo.filter(video_id=video_id).exists():
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content_item["add_ts"] = utils.get_current_timestamp()
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bilibili_video_pydantic = pydantic_model_creator(BilibiliVideo, name='BilibiliVideoCreate', exclude=('id',))
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bilibili_data = bilibili_video_pydantic(**content_item)
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bilibili_video_pydantic.model_validate(bilibili_data)
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await BilibiliVideo.create(**bilibili_data.model_dump())
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else:
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bilibili_video_pydantic = pydantic_model_creator(BilibiliVideo, name='BilibiliVideoUpdate',
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exclude=('id', 'add_ts'))
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bilibili_data = bilibili_video_pydantic(**content_item)
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bilibili_video_pydantic.model_validate(bilibili_data)
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await BilibiliVideo.filter(video_id=video_id).update(**bilibili_data.model_dump())
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async def store_comment(self, comment_item: Dict):
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"""
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Bilibili content DB storage implementation
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Args:
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comment_item: comment item dict
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Returns:
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"""
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from .bilibili_store_db_types import BilibiliComment
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comment_id = comment_item.get("comment_id")
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if not await BilibiliComment.filter(comment_id=comment_id).exists():
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comment_item["add_ts"] = utils.get_current_timestamp()
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comment_pydantic = pydantic_model_creator(BilibiliComment, name='BilibiliVideoCommentCreate',
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exclude=('id',))
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comment_data = comment_pydantic(**comment_item)
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comment_pydantic.model_validate(comment_data)
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await BilibiliComment.create(**comment_data.model_dump())
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else:
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comment_pydantic = pydantic_model_creator(BilibiliComment, name='BilibiliVideoCommentUpdate',
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exclude=('id', 'add_ts'))
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comment_data = comment_pydantic(**comment_item)
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comment_pydantic.model_validate(comment_data)
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await BilibiliComment.filter(comment_id=comment_id).update(**comment_data.model_dump())
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class BiliJsonStoreImplement(AbstractStore):
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json_store_path: str = "data/bilibili"
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lock = asyncio.Lock()
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def make_save_file_name(self, store_type: str) -> str:
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"""
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make save file name by store type
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Args:
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store_type: Save type contains content and comments（contents | comments）
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Returns:
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"""
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return f"{self.json_store_path}/{crawler_type_var.get()}_{store_type}_{utils.get_current_date()}.json"
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async def save_data_to_json(self, save_item: Dict, store_type: str):
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"""
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Below is a simple way to save it in json format.
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Args:
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save_item: save content dict info
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store_type: Save type contains content and comments（contents | comments）
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Returns:
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"""
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pathlib.Path(self.json_store_path).mkdir(parents=True, exist_ok=True)
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save_file_name = self.make_save_file_name(store_type=store_type)
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save_data = []
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async with self.lock:
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if os.path.exists(save_file_name):
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async with aiofiles.open(save_file_name, 'r', encoding='utf-8') as file:
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save_data = json.loads(await file.read())
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save_data.append(save_item)
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async with aiofiles.open(save_file_name, 'w', encoding='utf-8') as file:
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await file.write(json.dumps(save_data, ensure_ascii=False))
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async def store_content(self, content_item: Dict):
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"""
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content JSON storage implementation
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Args:
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content_item:
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Returns:
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"""
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await self.save_data_to_json(content_item, "contents")
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async def store_comment(self, comment_item: Dict):
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"""
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comment JSON storage implementatio
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Args:
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comment_item:
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Returns:
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"""
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await self.save_data_to_json(comment_item, "comments")
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