From 6a5a0b090d7f303f3332759d63ffd0ac77cdd28c Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@archive.org>
Date: Thu, 26 Dec 2019 21:17:27 -0800
Subject: add PersistGrobidDiskWorker

To help with making dumps directly from Kafka (eg, for partner delivery)
---
 python/persist_tool.py        | 27 +++++++++++++++++++++++++++
 python/sandcrawler/persist.py | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/python/persist_tool.py b/python/persist_tool.py
index 309601b..29345e2 100755
--- a/python/persist_tool.py
+++ b/python/persist_tool.py
@@ -50,6 +50,20 @@ def run_grobid(args):
     )
     pusher.run()
 
+def run_grobid_disk(args):
+    """
+    Writes XML to individual files on disk, and also prints non-XML metadata to
+    stdout as JSON, which can be redirected to a separate file.
+    """
+    worker = PersistGrobidDiskWorker(
+        output_dir=args.output_dir,
+    )
+    pusher = JsonLinePusher(
+        worker,
+        args.json_file,
+    )
+    pusher.run()
+
 def run_ingest_file_result(args):
     worker = PersistIngestFileResultWorker(
         db_url=args.db_url,
@@ -97,6 +111,19 @@ def main():
     sub_grobid.add_argument('json_file',
         help="grobid file to import from (or '-' for stdin)",
         type=argparse.FileType('r'))
+    sub_grobid.add_argument('--s3-only',
+        action='store_true',
+        help="only upload TEI-XML to S3 (don't write to database)")
+
+    sub_grobid_disk = subparsers.add_parser('grobid-disk',
+        help="dump GRBOID output to (local) files on disk")
+    sub_grobid_disk.set_defaults(func=run_grobid_disk)
+    sub_grobid_disk.add_argument('json_file',
+        help="grobid file to import from (or '-' for stdin)",
+        type=argparse.FileType('r'))
+    sub_grobid_disk.add_argument('output_dir',
+        help="base directory to output into",
+        type=str)
 
     sub_ingest_file_result = subparsers.add_parser('ingest-file-result',
         help="backfill a ingest_file_result JSON dump into postgresql")
diff --git a/python/sandcrawler/persist.py b/python/sandcrawler/persist.py
index b017a82..9f8171c 100644
--- a/python/sandcrawler/persist.py
+++ b/python/sandcrawler/persist.py
@@ -245,3 +245,36 @@ class PersistGrobidWorker(SandcrawlerWorker):
         self.db.commit()
         return []
 
+
+class PersistGrobidDiskWorker(SandcrawlerWorker):
+    """
+    Writes blobs out to disk.
+
+    This could be refactored into a "Sink" type with an even thinner wrapper.
+    """
+
+    def __init__(self, output_dir):
+        super().__init__()
+        self.output_dir = output_dir
+
+    def _blob_path(self, sha1hex, extension=".tei.xml"):
+        obj_path = "{}/{}/{}{}".format(
+            sha1hex[0:2],
+            sha1hex[2:4],
+            sha1hex,
+            extension,
+        )
+        return obj_path
+
+    def process(self, record):
+
+        if record['status_code'] != 200 or not record.get('tei_xml'):
+            return False
+        assert(len(record['key'])) == 40
+        p = "{}/{}".format(self.output_dir, self._blob_path(record['key']))
+        os.makedirs(os.path.dirname(p), exist_ok=True)
+        with open(p, 'w') as f:
+            f.write(record.pop('tei_xml'))
+        self.counts['written'] += 1
+        return record
+
-- 
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