Better converter

olmocr/train/convertjsontoparquet.py

@@ -12,13 +12,17 @@ import glob
 import json
 import re
 import sqlite3
+import tempfile
+import os
+import shutil
 from dataclasses import dataclass
-from typing import Optional, List, Tuple
+from typing import Optional, List, Tuple, Dict, Set
 import concurrent.futures
 
+import boto3
 from tqdm import tqdm
 import pandas as pd
-
+from pypdf import PdfReader, PdfWriter
 
 def parse_pdf_hash(pretty_pdf_path: str) -> Optional[str]:
     """
@@ -27,13 +31,13 @@ def parse_pdf_hash(pretty_pdf_path: str) -> Optional[str]:
       s3://ai2-s2-pdfs/de80/a57e6c57b45796d2e020173227f7eae44232.pdf-1
     it will return "de80a57e6c57b45796d2e020173227f7eae44232".
     """
-    pattern = r"s3://ai2-s2-pdfs/([a-f0-9]{4})/([a-f0-9]+)\.pdf"
+    # Allow an optional "-<number>" at the end.
+    pattern = r"s3://ai2-s2-pdfs/([a-f0-9]{4})/([a-f0-9]+)\.pdf(?:-\d+)?$"
     match = re.match(pattern, pretty_pdf_path)
     if match:
         return match.group(1) + match.group(2)
     return None
 
-
 def get_uri_from_db(db_path: str, pdf_hash: str) -> Optional[str]:
     """
     Looks up the URL for the given pdf_hash in the sqlite database.
@@ -44,8 +48,7 @@ def get_uri_from_db(db_path: str, pdf_hash: str) -> Optional[str]:
     cursor.execute("SELECT uri FROM pdf_mapping WHERE pdf_hash = ?", (pdf_hash,))
     result = cursor.fetchone()
     conn.close()
-    return result[0] if result else None
-
+    return result[0].strip() if result and result[0] else None
 
 @dataclass(frozen=True)
 class NormalizedEntry:
@@ -70,7 +73,6 @@ class NormalizedEntry:
     def goldkey(self):
         return f"{self.s3_path}-{self.pagenum}"
 
-
 def normalize_json_entry(data: dict) -> NormalizedEntry:
     """
     Normalizes a JSON entry from any of the supported formats.
@@ -107,14 +109,84 @@ def normalize_json_entry(data: dict) -> NormalizedEntry:
     else:
         raise ValueError("Unsupported JSON format")
 
+def parse_s3_url(s3_url: str) -> Tuple[str, str]:
+    """
+    Parses an S3 URL of the form s3://bucket/key and returns (bucket, key).
+    """
+    if not s3_url.startswith("s3://"):
+        raise ValueError(f"Invalid S3 URL: {s3_url}")
+    s3_path = s3_url[5:]
+    bucket, key = s3_path.split("/", 1)
+    return bucket, key
 
-def process_file(file_path: str, db_path: str) -> Tuple[List[dict], int]:
+def download_pdf_to_cache(s3_url: str, cache_dir: str) -> Optional[str]:
+    """
+    Downloads the PDF from the given S3 URL into the specified cache directory.
+    The destination filename is based on the parsed PDF hash.
+    Returns the path to the downloaded PDF.
+    """
+    try:
+        bucket, key = parse_s3_url(s3_url)
+        s3_client = boto3.client('s3')
+        pdf_hash = parse_pdf_hash(s3_url)
+        if not pdf_hash:
+            # Fallback: use a sanitized version of the s3_url
+            pdf_hash = re.sub(r'\W+', '_', s3_url)
+        dest_path = os.path.join(cache_dir, f"{pdf_hash}.pdf")
+        # Avoid re-downloading if already exists
+        if not os.path.exists(dest_path):
+            s3_client.download_file(bucket, key, dest_path)
+        return dest_path
+    except Exception as e:
+        print(f"Error downloading {s3_url}: {e}")
+        return None
+
+def process_pdf_page(s3_url: str, page_number: int, combined_id: str, output_pdf_dir: str, pdf_cache: Dict[str, str]) -> Optional[str]:
+    """
+    Extracts the specified page (1-indexed) from the cached PDF corresponding to s3_url.
+    Writes a new single-page PDF to the output_pdf_dir using the combined_id as the filename.
+    Returns the relative path to the new PDF (e.g., "pdfs/<combined_id>.pdf").
+    """
+    try:
+        local_cached_pdf = pdf_cache.get(s3_url)
+        if not local_cached_pdf or not os.path.exists(local_cached_pdf):
+            print(f"Cached PDF not found for {s3_url}")
+            return None
+        reader = PdfReader(local_cached_pdf)
+        # pypdf uses 0-indexed page numbers
+        page_index = page_number - 1
+        if page_index < 0 or page_index >= len(reader.pages):
+            print(f"Page number {page_number} out of range for PDF {s3_url}")
+            return None
+        writer = PdfWriter()
+        writer.add_page(reader.pages[page_index])
+        output_filename = f"{combined_id}.pdf"
+        output_path = os.path.join(output_pdf_dir, output_filename)
+        with open(output_path, "wb") as f_out:
+            writer.write(f_out)
+        # Return the relative path (assuming pdfs/ folder is relative to the parquet file location)
+        return os.path.join("pdfs", output_filename)
+    except Exception as e:
+        print(f"Error processing PDF page for {s3_url} page {page_number}: {e}")
+        return None
+
+def process_file(file_path: str, db_path: str, output_pdf_dir: str, pdf_cache: Dict[str, str]) -> Tuple[List[dict], int]:
     """
     Process a single file and return a tuple:
-      (list of valid rows, number of rows skipped due to missing URL).
+      (list of valid rows, number of rows skipped due to missing URL or PDF extraction/filtering).
+    For each JSON entry, the function:
+      - Normalizes the JSON.
+      - Skips entries whose response contains the word "resume" (any case) along with either an email address or a phone number.
+      - Extracts the PDF hash and builds the combined id.
+      - Looks up the corresponding URL from the sqlite database.
+      - Extracts the specified page from the cached PDF and writes it to output_pdf_dir.
+      - Outputs a row with "id", "url", "page_number", "response".
     """
     rows = []
     missing_count = 0
+    email_regex = r"\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b"
+    phone_regex = r"\b(?:\+?\d{1,3}[-.\s]?)?(?:\(?\d{3}\)?[-.\s]?)?\d{3}[-.\s]?\d{4}\b"
+
     try:
         with open(file_path, "r", encoding="utf-8") as f:
             for line_num, line in enumerate(f, start=1):
@@ -133,7 +205,14 @@ def process_file(file_path: str, db_path: str) -> Tuple[List[dict], int]:
                     print(f"Error normalizing entry at {file_path}:{line_num} - {e}")
                     continue
 
-                # Extract the pdf hash from the s3_path.
+                # Apply filter: skip if response contains "resume" (any case) and an email or phone number.
+                response_text = normalized.text if normalized.text else ""
+                if (re.search(r"resume", response_text, re.IGNORECASE) and 
+                    (re.search(email_regex, response_text) or re.search(phone_regex, response_text))):
+                    print(f"Skipping entry due to resume and contact info in response at {file_path}:{line_num}")
+                    continue
+
+                # Extract the PDF hash from the s3_path.
                 pdf_hash = parse_pdf_hash(normalized.s3_path)
                 if pdf_hash is None:
                     print(f"Could not parse pdf hash from {normalized.s3_path} at {file_path}:{line_num}")
@@ -144,14 +223,18 @@ def process_file(file_path: str, db_path: str) -> Tuple[List[dict], int]:
 
                 # Look up the corresponding URL from the sqlite database.
                 url = get_uri_from_db(db_path, pdf_hash)
-                if url is not None:
-                    url = url.strip()
-                # Skip rows with missing URLs (None or empty after strip)
                 if not url:
                     print(f"Missing URL for pdf hash {pdf_hash} at {file_path}:{line_num}")
                     missing_count += 1
                     continue
 
+                # Process PDF: extract the specified page from the cached PDF.
+                local_pdf_path = process_pdf_page(normalized.s3_path, normalized.pagenum, combined_id, output_pdf_dir, pdf_cache)
+                if local_pdf_path is None:
+                    print(f"Skipping entry because PDF processing failed for {normalized.s3_path} page {normalized.pagenum} at {file_path}:{line_num}")
+                    missing_count += 1
+                    continue
+
                 row = {
                     "id": combined_id,
                     "url": url,
@@ -163,6 +246,27 @@ def process_file(file_path: str, db_path: str) -> Tuple[List[dict], int]:
         print(f"Error processing file {file_path}: {e}")
     return rows, missing_count
 
+def scan_file_for_s3_urls(file_path: str) -> Set[str]:
+    """
+    Scans a single file and returns a set of unique S3 URLs found in the JSON entries.
+    """
+    urls = set()
+    try:
+        with open(file_path, "r", encoding="utf-8") as f:
+            for line in f:
+                line = line.strip()
+                if not line:
+                    continue
+                try:
+                    data = json.loads(line)
+                    normalized = normalize_json_entry(data)
+                    urls.add(normalized.s3_path)
+                except Exception:
+                    # Skip entries that cannot be normalized
+                    continue
+    except Exception as e:
+        print(f"Error reading file {file_path}: {e}")
+    return urls
 
 def main():
     parser = argparse.ArgumentParser(
@@ -182,19 +286,60 @@ def main():
     files = glob.glob(args.input_dataset)
     print(f"Found {len(files)} files matching pattern: {args.input_dataset}")
 
+    # Determine output directory and create 'pdfs' subfolder.
+    output_abs_path = os.path.abspath(args.output)
+    output_dir = os.path.dirname(output_abs_path)
+    pdfs_dir = os.path.join(output_dir, "pdfs")
+    os.makedirs(pdfs_dir, exist_ok=True)
+
+    # Create a temporary directory for caching PDFs.
+    pdf_cache_dir = tempfile.mkdtemp(prefix="pdf_cache_")
+    print(f"Caching PDFs to temporary directory: {pdf_cache_dir}")
+
+    # ---------------------------------------------------------------------
+    # Step 1: Scan input files to collect all unique S3 URLs using a ProcessPoolExecutor.
+    unique_s3_urls: Set[str] = set()
+    print("Scanning input files to collect unique PDF URLs...")
+    with concurrent.futures.ProcessPoolExecutor() as executor:
+        results = list(tqdm(executor.map(scan_file_for_s3_urls, files), total=len(files), desc="Scanning files"))
+    for url_set in results:
+        unique_s3_urls |= url_set
+
+    print(f"Found {len(unique_s3_urls)} unique PDF URLs.")
+
+    # ---------------------------------------------------------------------
+    # Step 2: Download all unique PDFs to the cache directory.
+    pdf_cache: Dict[str, str] = {}
+    print("Caching PDFs from S3...")
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        future_to_url = {
+            executor.submit(download_pdf_to_cache, s3_url, pdf_cache_dir): s3_url
+            for s3_url in unique_s3_urls
+        }
+        for future in tqdm(concurrent.futures.as_completed(future_to_url),
+                           total=len(future_to_url), desc="Downloading PDFs"):
+            s3_url = future_to_url[future]
+            try:
+                local_path = future.result()
+                if local_path:
+                    pdf_cache[s3_url] = local_path
+                else:
+                    print(f"Failed to cache PDF for {s3_url}")
+            except Exception as e:
+                print(f"Error caching PDF for {s3_url}: {e}")
+
+    # ---------------------------------------------------------------------
+    # Step 3: Process input files using the precached PDFs.
     all_rows = []
     total_missing = 0
-    # Process files in parallel using ProcessPoolExecutor.
+    print("Processing files...")
     with concurrent.futures.ProcessPoolExecutor() as executor:
         futures = {
-            executor.submit(process_file, file_path, args.db_path): file_path
+            executor.submit(process_file, file_path, args.db_path, pdfs_dir, pdf_cache): file_path
             for file_path in files
         }
-        for future in tqdm(
-            concurrent.futures.as_completed(futures),
-            total=len(futures),
-            desc="Processing files",
-        ):
+        for future in tqdm(concurrent.futures.as_completed(futures),
+                           total=len(futures), desc="Processing files"):
             file_path = futures[future]
             try:
                 rows, missing_count = future.result()
@@ -212,10 +357,16 @@ def main():
         valid_count = len(df)
         total_processed = valid_count + total_missing
         print(f"Successfully wrote {valid_count} rows to {args.output}")
-        print(f"Missing URL rows skipped: {total_missing} out of {total_processed} processed rows")
+        print(f"Rows skipped due to missing URL/PDF or filtering: {total_missing} out of {total_processed} processed rows")
     else:
         print("No valid rows to write. Exiting.")
 
+    # Optionally clean up the PDF cache directory.
+    try:
+        shutil.rmtree(pdf_cache_dir)
+        print(f"Cleaned up PDF cache directory: {pdf_cache_dir}")
+    except Exception as e:
+        print(f"Error cleaning up PDF cache directory: {e}")
 
 if __name__ == "__main__":
     main()