[sonic-platform-common] catch exception while creating api object (sonic-net#569)

Author: Junchao-Mellanox

sonic_platform_base/sonic_xcvr/xcvr_api_factory.py

@@ -128,5 +128,9 @@ def create_xcvr_api(self):
         if id in id_mapping:
             func, args = id_mapping[id]
             if isinstance(args, tuple):
-                return func(*args)
+                try:
+                    return func(*args)
+                except Exception as e:
+                    print(f"Error creating API: {e}")
+                    return None
         return None

tests/sonic_xcvr/test_xcvr_api_factory.py

@@ -73,6 +73,15 @@ def test_create_xcvr_api_8436_8636(self, reader, expected_api):
         self.api.reader = reader
         api = self.api.create_xcvr_api()
         assert isinstance(api, expected_api)
+        
+    @patch('sonic_platform_base.sonic_xcvr.xcvr_api_factory.XcvrApiFactory._create_api', MagicMock(side_effect=Exception('')))
+    def test_create_xcvr_api_with_exception(self):
+        self.api.reader = self.mock_reader
+        CmisCodes = MagicMock()
+        CmisMemMap = MagicMock()
+        XcvrEeprom = MagicMock()
+        CmisFr800gApi = MagicMock()
+        assert self.api.create_xcvr_api() is None
 
 class TestAmphBackplaneImpl:
     @pytest.fixture