refactor: plugin code structure

plugin/python/plugin.py

@@ -0,0 +1,46 @@
+from concurrent import futures
+import sys
+import time
+
+import grpc
+
+import debugtalk_pb2
+import debugtalk_pb2_grpc
+
+from grpc_health.v1.health import HealthServicer
+from grpc_health.v1 import health_pb2, health_pb2_grpc
+
+class DebugTalkServicer(debugtalk_pb2_grpc.DebugTalkServicer):
+    """Implementation of DebugTalk service."""
+
+    def GetNames(self, request, context):
+        result = debugtalk_pb2.GetNamesResponse()
+        return result
+
+    def Call(self, request, context):
+        return
+
+def serve():
+    # We need to build a health service to work with go-plugin
+    health = HealthServicer()
+    health.set("plugin", health_pb2.HealthCheckResponse.ServingStatus.Value('SERVING'))
+
+    # Start the server.
+    server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
+    debugtalk_pb2_grpc.add_DebugTalkServicer_to_server(DebugTalkServicer(), server)
+    health_pb2_grpc.add_HealthServicer_to_server(health, server)
+    server.add_insecure_port('127.0.0.1:1234')
+    server.start()
+
+    # Output information
+    print("1|1|tcp|127.0.0.1:1234|grpc")
+    sys.stdout.flush()
+
+    try:
+        while True:
+            time.sleep(60 * 60 * 24)
+    except KeyboardInterrupt:
+        server.stop(0)
+
+if __name__ == '__main__':
+    serve()