From 3bdbbcb3277a7c918bc037ca9b4106edb68ec815 Mon Sep 17 00:00:00 2001
From: Iaroslav Igoshev <Poolliver868@mail.ru>
Date: Thu, 2 May 2024 17:47:51 +0200
Subject: [PATCH] FIX-#7234: Deprecate HDK engine (#7235)

Signed-off-by: Igoshev, Iaroslav <iaroslav.igoshev@intel.com>
---
 modin/config/envvars.py | 20 ++++++++++++++++++++
 modin/error_message.py  | 10 +++++++---
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/modin/config/envvars.py b/modin/config/envvars.py
index d18a0a78924..d303d516b31 100644
--- a/modin/config/envvars.py
+++ b/modin/config/envvars.py
@@ -253,6 +253,26 @@ def _get_default(cls) -> str:
             "Please refer to installation documentation page to install an engine"
         )
 
+    @classmethod
+    def get(cls) -> str:
+        """
+        Get value of the Engine.
+
+        Returns
+        -------
+        str
+        """
+        value = super().get()
+        if value == "Native":
+            from modin.error_message import ErrorMessage
+
+            ErrorMessage.single_warning(
+                "HDK engine is deprecated and will be removed in a future version. "
+                + "Consider switching to Ray, Dask or MPI engine.",
+                FutureWarning,
+            )
+        return value
+
     @classmethod
     @doc(Parameter.add_option.__doc__)
     def add_option(cls, choice: Any) -> Any:
diff --git a/modin/error_message.py b/modin/error_message.py
index 54c646777af..a31cd5da3a6 100644
--- a/modin/error_message.py
+++ b/modin/error_message.py
@@ -12,7 +12,7 @@
 # governing permissions and limitations under the License.
 
 import warnings
-from typing import NoReturn, Set
+from typing import NoReturn, Optional, Set
 
 from modin.logging import get_logger
 from modin.utils import get_current_execution
@@ -36,7 +36,11 @@ def not_implemented(cls, message: str = "") -> NoReturn:
         )
 
     @classmethod
-    def single_warning(cls, message: str) -> None:
+    def single_warning(
+        cls, message: str, category: Optional[type[Warning]] = None
+    ) -> None:
+        # note that there should not be identical messages with different categories since
+        # only the message is used as the hash key.
         message_hash = hash(message)
         logger = get_logger()
         if message_hash in cls.printed_warnings:
@@ -46,7 +50,7 @@ def single_warning(cls, message: str) -> None:
             return
 
         logger.debug(f"Modin Warning: Single Warning: {message} was raised.")
-        warnings.warn(message)
+        warnings.warn(message, category=category)
         cls.printed_warnings.add(message_hash)
 
     @classmethod