From 56ce70ee81266625f55abf8c33d0469a47ce6bea Mon Sep 17 00:00:00 2001
From: Jochen Kupperschmidt <homework@nwsnet.de>
Date: Sat, 3 Apr 2021 19:42:15 +0200
Subject: [PATCH] Turn namedtuples `Message`, `PriorityValue` into dataclasses

---
 CHANGES.rst             |  2 ++
 src/syslogmp/message.py | 14 ++++++++++++--
 src/syslogmp/parser.py  |  8 +++++---
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 65d66ed..2257183 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -9,6 +9,8 @@ Unreleased
 
 - Removed support for Python versions 3.6.
 
+- Turn namedtuples ``Message`` and ``PriorityValue`` into dataclasses.
+
 
 Version 0.3
 -----------
diff --git a/src/syslogmp/message.py b/src/syslogmp/message.py
index 77ae3f0..5a9aed8 100644
--- a/src/syslogmp/message.py
+++ b/src/syslogmp/message.py
@@ -6,7 +6,17 @@ syslogmp.message
 :License: MIT, see LICENSE for details.
 """
 
-from collections import namedtuple
+from dataclasses import dataclass
+from datetime import datetime
 
+from .facility import Facility
+from .severity import Severity
 
-Message = namedtuple('Message', 'facility severity timestamp hostname message')
+
+@dataclass(frozen=True)
+class Message:
+    facility: Facility
+    severity: Severity
+    timestamp: datetime
+    hostname: str
+    message: bytes
diff --git a/src/syslogmp/parser.py b/src/syslogmp/parser.py
index 68f6a4f..114c8b4 100644
--- a/src/syslogmp/parser.py
+++ b/src/syslogmp/parser.py
@@ -24,7 +24,7 @@ latter.
 :License: MIT, see LICENSE for details.
 """
 
-from collections import namedtuple
+from dataclasses import dataclass
 from datetime import datetime
 
 from .facility import Facility
@@ -114,8 +114,10 @@ class _Parser:
         return self.stream.read_remainder()
 
 
-class PriorityValue(namedtuple('PriorityValue', 'facility severity')):
-    pass
+@dataclass(frozen=True)
+class PriorityValue:
+    facility: Facility
+    severity: Severity
 
 
 def _create_priority_value_from_pri_part(pri_part):
-- 
2.45.2