start supporting kafka importers

A nice feature would be some/any log output as to progress.

1 files changed, 17 insertions, 3 deletions

diff --git a/python/fatcat_import.py b/python/fatcat_import.py
index cdf04db1..555d4083 100755
--- a/python/fatcat_import.py
+++ b/python/fatcat_import.py
@@ -3,13 +3,18 @@
 import sys
 import argparse
 from fatcat_tools.importers import CrossrefImporter, OrcidImporter, \
-    IssnImporter, MatchedImporter, GrobidMetadataImporter
+    IssnImporter, MatchedImporter, GrobidMetadataImporter, make_kafka_consumer
 
 
 def run_crossref(args):
     fci = CrossrefImporter(args.host_url, args.issn_map_file,
         args.extid_map_file, create_containers=(not args.no_create_containers))
-    fci.process_batch(args.json_file, size=args.batch_size)
+    if args.kafka_mode:
+        consumer = make_kafka_consumer(
+            args.kafka_hosts, args.kafka_env, "crossref", "fatcat-import")
+        fci.process_batch(consumer, size=args.batch_size, decode_kafka=True)
+    else:
+        fci.process_batch(args.json_file, size=args.batch_size)
     fci.describe_run()
 
 def run_orcid(args):
@@ -41,6 +46,12 @@ def main():
     parser.add_argument('--host-url',
         default="http://localhost:9411/v0",
         help="connect to this host/port")
+    parser.add_argument('--kafka-hosts',
+        default="localhost:9092",
+        help="list of Kafka brokers (host/port) to use")
+    parser.add_argument('--kafka-env',
+        default="qa",
+        help="Kafka topic namespace to use (eg, prod, qa)")
     subparsers = parser.add_subparsers()
 
     sub_crossref = subparsers.add_parser('crossref')
@@ -51,7 +62,7 @@ def main():
     sub_crossref.add_argument('issn_map_file',
         help="ISSN to ISSN-L mapping file",
         default=None, type=argparse.FileType('r'))
-    sub_crossref.add_argument('extid_map_file',
+    sub_crossref.add_argument('--extid-map-file',
         help="DOI-to-other-identifiers sqlite3 database",
         default=None, type=str)
     sub_crossref.add_argument('--no-create-containers',
@@ -60,6 +71,9 @@ def main():
     sub_crossref.add_argument('--batch-size',
         help="size of batch to send",
         default=50, type=int)
+    sub_crossref.add_argument('--kafka-mode',
+        action='store_true',
+        help="consume from kafka topic (not stdin)")
 
     sub_orcid = subparsers.add_parser('orcid')
     sub_orcid.set_defaults(func=run_orcid)