1 files changed, 64 insertions, 0 deletions
diff --git a/onap_data_provider/property_tag/properties_getter.py b/onap_data_provider/property_tag/properties_getter.py
new file mode 100644
index 0000000..df29314
--- /dev/null
+++ b/onap_data_provider/property_tag/properties_getter.py
@@ -0,0 +1,64 @@
+"""Properties getter module."""
+"""
+   Copyright 2022 Deutsche Telekom AG
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+"""
+
+import logging
+from typing import Any, Mapping, Type, TYPE_CHECKING
+
+from .base import BasePropertyTagResource
+from .sdc_service import SdcServicePropertyTagResource
+
+if TYPE_CHECKING:
+    from typing import Any, Mapping
+
+
+class PropertiesGetter:
+    """Properties getter class.
+
+    Uses to get values of properties from already existing ONAP resources.
+
+    Contains a mapper to select right class to get the values from.
+    """
+
+    RESOURCES: Mapping[str, Type[BasePropertyTagResource]] = {
+        "service": SdcServicePropertyTagResource
+    }
+
+    @classmethod
+    def get_property(cls, resource_type: str, *args: str) -> Any:
+        """Get property class method.
+
+        Maps the input `resource_type` into `BasePropertyTagResource` class
+            and get it's `resource_property` property
+
+        Args:
+            resource_type (str): Type of the resource - uses by a mapper
+            *args (str): Args to be passed to the service class init
+
+        Raises:
+            ValueError: Given resource type is not supported
+
+        Returns:
+            Any: Resource property value
+
+        """
+        try:
+            return cls.RESOURCES[resource_type](*args).resource_property
+        except KeyError:
+            msg = f"Resource type \"{resource_type}\" is not supported"
+            logging.error(msg)
+            raise ValueError(msg)
+