Add des rst

[dcaegen2.git] / docs / sections / services / datalake-handler / overview.rst

diff --git a/docs/sections/services/datalake-handler/overview.rst b/docs/sections/services/datalake-handler/overview.rst
index 09e41a5..101cb46 100644 (file)
--- a/docs/sections/services/datalake-handler/overview.rst
+++ b/docs/sections/services/datalake-handler/overview.rst
@@ -39,7 +39,7 @@ without interacting with DataLake Handler.
 \r
 Description\r
 ~~~~~~~~~~~\r
-DataLate Handler's main function is to monitor and persist data flow through DMaaP. The databases are outside of ONAP scope, \r
+DataLake Handler's main function is to monitor and persist data flow through DMaaP and provide a query API for other component or external services. The databases are outside of ONAP scope, \r
 since the data is expected to be huge, and a database may be a complicated cluster consisting of thousand of nodes.\r
 \r
 Admin UI\r
@@ -67,8 +67,18 @@ Features
    - Support data processing features. Before persisting data, data can be massaged in Feeder. Currently two features are implemented: Correlate Cleared Message (in org.onap.datalake.feeder.service.db.ElasticsearchService)  and Flatten JSON Array (org.onap.datalake.feeder.service.StoreService).\r
    - Connection to Kafka and DBs are secured\r
 \r
+Des\r
+~~~\r
+Architecture\r
+.. image:: ./des-arch.PNG\r
+\r
+Features\r
+\r
+   - Provide a data query API for other components to consume.\r
+   - Integrate with Presto to do data query via sql template.\r
 \r
 Links\r
 ~~~~~\r
    - DataLake Development Environment Setup https://wiki.onap.org/display/DW/DataLake+Development+Environment+Setup\r
+   - Des description and deployment steps: https://wiki.onap.org/display/DW/DES\r
    - Source Code https://gerrit.onap.org/r/gitweb?p=dcaegen2/services.git;a=tree;f=components/datalake-handler;hb=HEAD\r