Fix #1073: Apache Druid Support (#1424)

* Fix #1073: Apache Druid Support

catalog-rest-service/src/main/resources/json/schema/entity/services/databaseService.json

@@ -22,7 +22,8 @@
         "Trino",
         "Vertica",
         "Glue",
-        "MariaDB"
+        "MariaDB",
+        "Druid"
       ],
       "javaEnums": [
         {
@@ -66,6 +67,9 @@
         },
         {
           "name": "MariaDB"
+        },
+        {
+          "name": "Druid"
         }
       ]
     }

ingestion/setup.py

@@ -79,6 +79,7 @@ plugins: Dict[str, Set[str]] = {
     "bigquery-usage": {"google-cloud-logging", "cachetools"},
     "docker": {"docker==5.0.3"},
     "dbt": {},
+    "druid": {"pydruid>=0.6.2"},
     "elasticsearch": {"elasticsearch~=7.13.1"},
     "glue": {"boto3~=1.19.12"},
     "hive": {

ingestion/src/metadata/ingestion/source/druid.py

@@ -0,0 +1,27 @@
+from typing import Optional
+
+import pydruid
+
+from metadata.ingestion.ometa.openmetadata_rest import MetadataServerConfig
+from metadata.ingestion.source.sql_source import SQLConnectionConfig, SQLSource
+
+
+class DruidConfig(SQLConnectionConfig):
+    scheme = "druid"
+    auth_options: Optional[str] = None
+    service_type = "Druid"
+
+    def get_connection_url(self):
+        url = super().get_connection_url()
+        return f"{url}/druid/v2/sql"
+
+
+class DruidSource(SQLSource):
+    def __init__(self, config, metadata_config, ctx):
+        super().__init__(config, metadata_config, ctx)
+
+    @classmethod
+    def create(cls, config_dict, metadata_config_dict, ctx):
+        config = DruidConfig.parse_obj(config_dict)
+        metadata_config = MetadataServerConfig.parse_obj(metadata_config_dict)
+        return cls(config, metadata_config, ctx)