mirror of
https://github.com/allenai/olmocr.git
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272 lines
9.4 KiB
Python
272 lines
9.4 KiB
Python
import os
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import hashlib
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import boto3
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import sqlite3
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import json
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import argparse
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import glob
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import tempfile
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import posixpath
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from dataclasses import dataclass
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from pypdf import PdfReader
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from tqdm import tqdm
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from typing import Optional
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from urllib.parse import urlparse
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from concurrent.futures import ProcessPoolExecutor, as_completed
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# Global s3 client for the whole script, feel free to adjust params if you need it
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s3 = boto3.client('s3')
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class DatabaseManager:
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def __init__(self, s3_workspace: str):
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cache_key = hashlib.sha256(s3_workspace.strip().lower().encode('utf-8')).hexdigest()
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home_cache_dir = os.path.join(os.path.expanduser('~'), '.cache', 'pdelfin', cache_key)
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os.makedirs(home_cache_dir, exist_ok=True)
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self.db_path = os.path.join(home_cache_dir, 'index.db')
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self.conn = sqlite3.connect(self.db_path)
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self.cursor = self.conn.cursor()
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self._initialize_tables()
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def _initialize_tables(self):
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self.cursor.execute("""
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CREATE TABLE IF NOT EXISTS page_results (
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s3_path TEXT,
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page_num INTEGER,
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start_index BIGINT,
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length BIGINT,
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finish_reason STRING
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error STRING
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)
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""")
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self.cursor.execute("""
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CREATE INDEX IF NOT EXISTS idx_path ON index_table(s3_path)
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""")
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self.cursor.execute("""
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CREATE TABLE IF NOT EXISTS pdfs (
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s3_path TEXT PRIMARY KEY,
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num_pages INTEGER,
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status TEXT DEFAULT 'pending'
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)
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""")
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self.cursor.execute("""
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CREATE TABLE IF NOT EXISTS processed_files (
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s3_path TEXT PRIMARY KEY,
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etag TEXT
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)
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""")
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# Generic metadata such as current round
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self.cursor.execute("""
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CREATE TABLE IF NOT EXISTS metadata (
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key TEXT PRIMARY KEY,
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value TEXT
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)
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""")
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self.conn.commit()
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def get_metadata(self, key: str) -> str:
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self.cursor.execute("SELECT value FROM metadata WHERE key=?", (key,))
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result = self.cursor.fetchone()
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return result[0]
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def get_current_round(self):
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return int(self.get_metadata("round"))
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def is_file_processed(self, s3_path, etag):
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self.cursor.execute("SELECT etag FROM processed_files WHERE s3_path = ?", (s3_path,))
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result = self.cursor.fetchone()
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return result is not None and result[0] == etag
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def add_index_entries(self, index_entries):
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# TODO MAke it take batchInferenceLines
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if index_entries:
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self.cursor.executemany("""
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INSERT INTO index_table (custom_id, s3_path, start_index, end_index)
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VALUES (?, ?, ?, ?)
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""", index_entries)
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self.conn.commit()
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def update_processed_file(self, s3_path, etag):
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self.cursor.execute("""
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INSERT INTO processed_files (s3_path, etag)
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VALUES (?, ?)
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ON CONFLICT(s3_path) DO UPDATE SET etag=excluded.etag
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""", (s3_path, etag))
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self.conn.commit()
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def pdf_exists(self, s3_path: str) -> bool:
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self.cursor.execute("SELECT 1 FROM pdfs WHERE s3_path = ?", (s3_path,))
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return self.cursor.fetchone() is not None
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def add_pdf(self, s3_path: str, num_pages: int, status: str = 'pending') -> None:
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try:
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self.cursor.execute("""
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INSERT INTO pdfs (s3_path, num_pages, status)
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VALUES (?, ?, ?)
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""", (s3_path, num_pages, status))
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self.conn.commit()
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except sqlite3.IntegrityError:
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print(f"PDF with s3_path '{s3_path}' already exists.")
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def get_pdf_status(self, s3_path: str) -> Optional[str]:
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self.cursor.execute("SELECT status FROM pdfs WHERE s3_path = ?", (s3_path,))
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result = self.cursor.fetchone()
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return result[0] if result else None
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def close(self):
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self.conn.close()
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def parse_s3_path(s3_path):
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if not s3_path.startswith('s3://'):
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raise ValueError('s3_path must start with s3://')
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path = s3_path[5:]
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bucket, _, prefix = path.partition('/')
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return bucket, prefix
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def expand_s3_glob(s3_glob: str) -> dict[str, str]:
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parsed = urlparse(s3_glob)
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bucket_name = parsed.netloc
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prefix = os.path.dirname(parsed.path.lstrip('/')).rstrip('/') + "/"
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pattern = os.path.basename(parsed.path)
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paginator = s3.get_paginator('list_objects_v2')
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page_iterator = paginator.paginate(Bucket=bucket_name, Prefix=prefix)
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matched_files = {}
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for page in page_iterator:
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for obj in page.get('Contents', []):
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key = obj['Key']
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if glob.fnmatch.fnmatch(key, posixpath.join(prefix, pattern)):
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matched_files[f"s3://{bucket_name}/{key}"] = obj['ETag'].strip('"')
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return matched_files
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@dataclass(frozen=True)
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class BatchInferenceLine:
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s3_path: str
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page_num: int # 1 indexed!
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start_index: int
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length: int
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finish_reason: str
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error: Optional[str]
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def parse_custom_id(custom_id: str) -> tuple[str, int]:
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s3_path = custom_id[:custom_id.rindex("-")]
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page_num = int(custom_id[custom_id.rindex("-") + 1:])
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return s3_path, page_num
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def process_jsonl_content(s3_path) -> list[BatchInferenceLine]:
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content = get_s3_bytes(s3_path).decode("utf-8")
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start_index = 0
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index_entries = []
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lines = content.splitlines(keepends=True)
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for line in lines:
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line_length = len(line)
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try:
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data = json.loads(line)
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s3_path, page_num = parse_custom_id(data["custom_id"])
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assert "outputs" in data and len(data["outputs"]) > 0, "No outputs from model detected"
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index_entries.append(BatchInferenceLine(s3_path, page_num, start_index, line_length,
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finish_reason=data["outputs"][0]["finish_reason"], error=data.get("completion_error", None)))
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except json.JSONDecodeError:
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pass # Handle JSON decode errors if necessary
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start_index = start_index + line_length
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return index_entries
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def get_s3_bytes(s3_path: str, start_index: Optional[int] = None, end_index: Optional[int] = None) -> bytes:
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bucket, key = parse_s3_path(s3_path)
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# Build the range header if start_index and/or end_index are specified
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range_header = None
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if start_index is not None or end_index is not None:
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range_value = f"bytes={start_index or 0}-"
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if end_index is not None:
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range_value += str(end_index)
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range_header = {'Range': range_value}
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if range_header:
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obj = s3.get_object(Bucket=bucket, Key=key, Range=range_header['Range'])
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else:
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obj = s3.get_object(Bucket=bucket, Key=key)
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return obj['Body'].read()
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def get_pdf_num_pages(s3_path: str) -> Optional[int]:
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try:
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with tempfile.NamedTemporaryFile("wb+", suffix=".pdf") as tf:
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tf.write(get_s3_bytes(s3_path))
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tf.flush()
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reader = PdfReader(tf.name)
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return reader.get_num_pages()
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except Exception as ex:
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print(f"Warning, could not add {s3_path} due to {ex}")
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return None
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Manager for running millions of PDFs through a batch inference pipeline')
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parser.add_argument('workspace', help='The S3 path where work will be done e.g., s3://bucket/prefix/)')
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parser.add_argument('--add_pdfs', help='Glob path to add PDFs (s3) to the workspace', default=None)
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parser.add_argument('--file_size_limit', type=int, default=250, help='Max file size in MB')
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args = parser.parse_args()
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db = DatabaseManager(args.workspace)
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print(f"Loaded db at {db.db_path}")
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print(f"Current round is {db.get_current_round()}\n")
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# One shared executor to rule them all
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executor = ProcessPoolExecutor()
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# If you have new PDFs, add them to the list
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if args.add_pdfs:
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assert args.add_pdfs.startswith("s3://"), "PDFs must live on s3"
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print(f"Querying all PDFs at {args.add_pdfs}")
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all_pdfs = expand_s3_glob(args.add_pdfs)
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print(f"Found {len(all_pdfs)} total pdf paths")
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all_pdfs = [pdf for pdf in all_pdfs if not db.pdf_exists(pdf)]
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print(f"Need to import {len(all_pdfs)} total new pdf paths")
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future_to_path = {executor.submit(get_pdf_num_pages, s3_path): s3_path for s3_path in all_pdfs}
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for future in tqdm(as_completed(future_to_path), total=len(future_to_path)):
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s3_path = future_to_path[future]
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if future.result() and not db.pdf_exists(s3_path):
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db.add_pdf(s3_path, future.result(), "pending")
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print("\n")
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# Now build an index of all the pages that were processed within the workspace so far
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inference_output_paths = expand_s3_glob(f"{args.workspace}/inference_outputs/*.jsonl")
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inference_output_paths = [
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(key, etag) for key, etag in inference_output_paths.items()
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if not db.is_file_processed(key, etag)
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]
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future_to_path = {executor.submit(process_jsonl_content, s3_path): s3_path for s3_path, etag in inference_output_paths}
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for future in tqdm(as_completed(future_to_path), total=len(future_to_path)):
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s3_path = future_to_path[future]
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inference_lines = future.result()
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db.add_index_entries(inference_lines)
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db.update_processed_file(s3_path, etag=TODO)
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