1 files changed, 139 insertions, 0 deletions
diff --git a/python/pdfextract_tool.py b/python/pdfextract_tool.py
new file mode 100755
index 0000000..10a0f48
--- /dev/null
+++ b/python/pdfextract_tool.py
@@ -0,0 +1,139 @@
+#!/usr/bin/env python3
+
+"""
+KNOWN ISSUE: thumbnails are not published to kafka in multi-processing mode
+"""
+
+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=None)
+        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, thumbnail_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=args.thumbnail_sink)
+        pusher = ZipfilePusher(worker, args.zip_file)
+    pusher.run()
+
+def run_single(args):
+    worker = PdfExtractBlobWorker(sink=args.sink, thumbnail_sink=args.thumbnail_sink)
+    with open(args.pdf_file, 'rb') as pdf_file:
+        pdf_bytes = pdf_file.read()
+    worker.push_record(pdf_bytes)
+    worker.finish()
+    if args.thumbnail_sink:
+        args.thumbnail_sink.finish()
+
+
+
+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"):
+        parser.print_help(file=sys.stderr)
+        sys.exit(-1)
+
+    args.text_sink = None
+    args.thumbnail_sink = None
+    if args.kafka_mode:
+        text_topic = "sandcrawler-{}.pdf-text".format(args.kafka_env)
+        thumbnail_topic = "sandcrawler-{}.pdf-thumbnail-180px-jpg".format(args.kafka_env)
+        args.sink = KafkaCompressSink(kafka_hosts=args.kafka_hosts,
+            produce_topic=text_topic)
+        args.thumbnail_sink = KafkaSink(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)
+    else:
+        args.sink = None
+        args.thumbnail_sink = None
+
+    args.func(args)
+
+if __name__ == '__main__':
+    main()