From e5486378d8d7adf8974b1f1ebaf0400445ba8791 Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@robocracy.org>
Date: Sun, 4 Nov 2018 18:52:22 -0800
Subject: elastic release worker

---
 python/fatcat/elastic_workers.py | 46 ++++++++++++++++++++++++++++++++++++++++
 python/fatcat/release_model.py   | 15 ++++++++++++-
 python/fatcat_worker.py          | 10 +++++++++
 3 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 python/fatcat/elastic_workers.py

diff --git a/python/fatcat/elastic_workers.py b/python/fatcat/elastic_workers.py
new file mode 100644
index 00000000..c3226981
--- /dev/null
+++ b/python/fatcat/elastic_workers.py
@@ -0,0 +1,46 @@
+
+import json
+import time
+import requests
+from fatcat.worker_common import FatcatWorker
+from fatcat.release_model import FatcatRelease
+from pykafka.common import OffsetType
+
+
+class FatcatElasticReleaseWorker(FatcatWorker):
+    """
+    Consumes from release-updates topic and pushes into (presumably local)
+    elasticsearch.
+
+    Uses a consumer group to manage offset.
+    """
+
+    def __init__(self, kafka_hosts, consume_topic, poll_interval=10.0, offset=None,
+            elastic_backend="http://localhost:9200", elastic_index="fatcat"):
+        super().__init__(kafka_hosts=kafka_hosts,
+                         consume_topic=consume_topic,
+                         api_host_url=None)
+        self.consumer_group = "elastic-updates"
+        self.elastic_backend = elastic_backend
+        self.elastic_index = elastic_index
+
+    def run(self):
+        consume_topic = self.kafka.topics[self.consume_topic]
+
+        consumer = consume_topic.get_balanced_consumer(
+            consumer_group=self.consumer_group,
+            managed=True,
+        )
+
+        for msg in consumer:
+            json_str = msg.value.decode('utf-8')
+            release = FatcatRelease.from_json(json_str)
+            #print(release)
+            elastic_endpoint = "{}/{}/release/{}".format(
+                self.elastic_backend,
+                self.elastic_index,
+                release.ident)
+            print("Updating document: {}".format(elastic_endpoint))
+            resp = requests.post(elastic_endpoint, json=release.to_elastic_dict())
+            assert resp.status_code in (200, 201)
+            consumer.commit_offsets()
diff --git a/python/fatcat/release_model.py b/python/fatcat/release_model.py
index aa0d2d9f..403fc671 100644
--- a/python/fatcat/release_model.py
+++ b/python/fatcat/release_model.py
@@ -1,4 +1,5 @@
 
+import collections
 from fatcat_client.models import ReleaseEntity
 from fatcat_client.api_client import ApiClient
 
@@ -23,7 +24,6 @@ class FatcatRelease(ReleaseEntity):
             ident = self.ident,
             revision = self.revision,
             title = self.title,
-            release_date = self.release_date,
             release_type = self.release_type,
             release_status = self.release_status,
             language = self.language,
@@ -35,6 +35,9 @@ class FatcatRelease(ReleaseEntity):
             wikidata_qid = self.wikidata_qid
         )
 
+        if self.release_date:
+            t['release_date'] = self.release_date.strftime('%F')
+
         container = self.container
         container_is_kept = False
         if container:
@@ -88,3 +91,13 @@ class FatcatRelease(ReleaseEntity):
     def to_json(self):
         ac = ApiClient()
         return ac.sanitize_for_serialization(self)
+
+    def from_json(json_str):
+        """
+        Hack to take advantage of the code-generated deserialization code
+        """
+        ac = ApiClient()
+        thing = collections.namedtuple('Thing', ['data'])
+        thing.data = json_str
+        return ac.deserialize(thing, FatcatRelease)
+
diff --git a/python/fatcat_worker.py b/python/fatcat_worker.py
index cc11beca..50ff0fb7 100755
--- a/python/fatcat_worker.py
+++ b/python/fatcat_worker.py
@@ -3,6 +3,7 @@
 import sys
 import argparse
 from fatcat.changelog_workers import FatcatChangelogWorker, FatcatEntityUpdatesWorker
+from fatcat.elastic_workers import FatcatElasticReleaseWorker
 
 def run_changelog_worker(args):
     topic = "fatcat-{}.changelog".format(args.env)
@@ -17,6 +18,12 @@ def run_entity_updates_worker(args):
         changelog_topic, release_topic)
     worker.run()
 
+def run_elastic_release_worker(args):
+    consume_topic = "fatcat-{}.release-updates".format(args.env)
+    worker = FatcatElasticReleaseWorker(args.kafka_hosts,
+        consume_topic)
+    worker.run()
+
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument('--debug',
@@ -42,6 +49,9 @@ def main():
     sub_entity_updates = subparsers.add_parser('entity-updates')
     sub_entity_updates.set_defaults(func=run_entity_updates_worker)
 
+    sub_elastic_release = subparsers.add_parser('elastic-release')
+    sub_elastic_release.set_defaults(func=run_elastic_release_worker)
+
     args = parser.parse_args()
     if not args.__dict__.get("func"):
         print("tell me what to do!")
-- 
cgit v1.2.3