diff options
Diffstat (limited to 'python')
| -rwxr-xr-x | python/pdf_tool.py | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/python/pdf_tool.py b/python/pdf_tool.py new file mode 100755 index 0000000..ed8c2be --- /dev/null +++ b/python/pdf_tool.py @@ -0,0 +1,137 @@ +#!/usr/bin/env python3 + +""" +These are generally for running one-off tasks from the command line. Output +might go to stdout, or might go to Kafka topic. + +Example of large parallel run, locally: + + cat /srv/sandcrawler/tasks/ungrobided.2019-09-23.json | pv -l | parallel -j30 --pipe ./grobid_tool.py --kafka-env prod --kafka-hosts wbgrp-svc263.us.archive.org:9092,wbgrp-svc284.us.archive.org:9092,wbgrp-svc285.us.archive.org:9092 --kafka-mode --grobid-host http://localhost:8070 -j0 extract-json - +""" + +import sys +import json +import argparse +import datetime + +from grobid2json import teixml2json +from sandcrawler import * + + +def run_extract_json(args): + wayback_client = WaybackClient() + if args.jobs > 1: + worker = PdfExtractWorker(wayback_client, sink=None, thumbnail_sink=args.thumbnail_sink) + multi_worker = MultiprocessWrapper(worker, args.sink) + pusher = JsonLinePusher(multi_worker, args.json_file, batch_size=args.jobs) + else: + worker = PdfExtractWorker(wayback_client, sink=args.sink, thumbnail_sink=args.thumbnail_sink) + pusher = JsonLinePusher(worker, args.json_file) + pusher.run() + +def run_extract_cdx(args): + wayback_client = WaybackClient() + if args.jobs > 1: + worker = PdfExtractWorker(wayback_client, sink=None) + multi_worker = MultiprocessWrapper(worker, args.sink) + pusher = CdxLinePusher( + multi_worker, + args.cdx_file, + filter_http_statuses=[200, 226], + filter_mimetypes=['application/pdf'], + batch_size=args.jobs, + ) + else: + worker = PdfExtractWorker(wayback_client, sink=args.sink, thumbnail_sink=args.thumbnail_sink) + pusher = CdxLinePusher( + worker, + args.cdx_file, + filter_http_statuses=[200, 226], + filter_mimetypes=['application/pdf'], + ) + pusher.run() + +def run_extract_zipfile(args): + if args.jobs > 1: + print("multi-processing: {}".format(args.jobs), file=sys.stderr) + worker = PdfExtractBlobWorker(sink=None, thumbnail_sink=None) + multi_worker = MultiprocessWrapper(worker, args.sink, jobs=args.jobs) + pusher = ZipfilePusher(multi_worker, args.zip_file, batch_size=args.jobs) + else: + worker = PdfExtractBlobWorker(sink=args.sink, thumbnail_sink=None) + pusher = ZipfilePusher(worker, args.zip_file) + pusher.run() + +def run_single(args): + worker = PdfExtractBlobWorker(sink=args.sink, thumbnail_sink=None) + with open(args.pdf_file, 'rb') as pdf_file: + result = worker.process(pdf_file.open()) + print(json.dumps(result, sort_keys=True)) + + +def main(): + parser = argparse.ArgumentParser( + formatter_class=argparse.ArgumentDefaultsHelpFormatter) + parser.add_argument('--kafka-mode', + action='store_true', + help="send output to Kafka (not stdout)") + parser.add_argument('--kafka-hosts', + default="localhost:9092", + help="list of Kafka brokers (host/port) to use") + parser.add_argument('--kafka-env', + default="dev", + help="Kafka topic namespace to use (eg, prod, qa, dev)") + parser.add_argument('-j', '--jobs', + default=8, type=int, + help="parallelism for batch CPU jobs") + subparsers = parser.add_subparsers() + + sub_extract_json = subparsers.add_parser('extract-json', + help="for each JSON line with CDX info, fetches PDF and does PDF extraction") + sub_extract_json.set_defaults(func=run_extract_json) + sub_extract_json.add_argument('json_file', + help="JSON file to import from (or '-' for stdin)", + type=argparse.FileType('r')) + + sub_extract_cdx = subparsers.add_parser('extract-cdx', + help="for each CDX line, fetches PDF and does PDF extraction") + sub_extract_cdx.set_defaults(func=run_extract_cdx) + sub_extract_cdx.add_argument('cdx_file', + help="CDX file to import from (or '-' for stdin)", + type=argparse.FileType('r')) + + sub_extract_zipfile = subparsers.add_parser('extract-zipfile', + help="opens zipfile, iterates over PDF files inside and does PDF extract for each") + sub_extract_zipfile.set_defaults(func=run_extract_zipfile) + sub_extract_zipfile.add_argument('zip_file', + help="zipfile with PDFs to extract", + type=str) + + sub_single = subparsers.add_parser('single', + help="opens single PDF and extracts it") + sub_single.set_defaults(func=run_single) + sub_single.add_argument('pdf_file', + help="single PDF to extract", + type=str) + + args = parser.parse_args() + if not args.__dict__.get("func"): + print("tell me what to do!", file=sys.stderr) + sys.exit(-1) + + args.text_sink = None + args.thumbnail_sink = None + if args.kafka_mode: + text_topic = "sandcrawler-{}.pdftext".format(args.kafka_env) + thumbnail_topic = "sandcrawler-{}.thumbnail-180px-jpeg".format(args.kafka_env) + args.sink = KafkaCompressSink(kafka_hosts=args.kafka_hosts, + produce_topic=text_topic) + args.thumbnail_sink = KafkaCompressSink(kafka_hosts=args.kafka_hosts, + produce_topic=thumbnail_topic) + print("Running in kafka output mode, publishing to {} and {}\n".format( + text_topic, thumbnail_topic), file=sys.stderr) + + args.func(args) + +if __name__ == '__main__': + main() |