1 files changed, 79 insertions, 0 deletions
diff --git a/src/onapsdk/clamp/clamp_element.py b/src/onapsdk/clamp/clamp_element.py
new file mode 100644
index 0000000..843db42
--- /dev/null
+++ b/src/onapsdk/clamp/clamp_element.py
@@ -0,0 +1,79 @@
+"""Clamp module."""
+#   Copyright 2022 Orange, 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.
+from onapsdk.configuration import settings
+from onapsdk.onap_service import OnapService as Onap
+from onapsdk.sdc.service import Service
+from onapsdk.exceptions import ResourceNotFound
+from onapsdk.utils.headers_creator import headers_clamp_creator
+
+
+class Clamp(Onap):
+    """Mother Class of all CLAMP elements."""
+
+    #class variable
+    _base_url = settings.CLAMP_URL
+    name: str = "CLAMP"
+    headers = headers_clamp_creator(Onap.headers)
+
+    @classmethod
+    def base_url(cls) -> str:
+        """Give back the base url of Clamp."""
+        return f"{cls._base_url}/restservices/clds/v2"
+
+    @classmethod
+    def check_loop_template(cls, service: Service) -> str:
+        """
+        Return loop template name if exists.
+
+        Args:
+            service (Service): the distributed sdc service with tca blueprint artifact
+
+        Raises:
+            ResourceNotFound: Template not found.
+
+        Returns:
+            if required template exists in CLAMP or not
+
+        """
+        url = f"{cls.base_url()}/templates/"
+        for template in cls.send_message_json('GET',
+                                              'Get Loop Templates',
+                                              url):
+            if template["modelService"]["serviceDetails"]["name"] == service.name:
+                return template["name"]
+        raise ResourceNotFound("Template not found.")
+
+    @classmethod
+    def check_policies(cls, policy_name: str, req_policies: int = 30) -> bool:
+        """
+        Ensure that a policy is stored in CLAMP.
+
+        Args:
+            policy_name (str): policy acronym
+            req_policies (int): number of required policies in CLAMP
+
+        Returns:
+            if required policy exists in CLAMP or not
+
+        """
+        url = f"{cls.base_url()}/policyToscaModels/"
+        policies = cls.send_message_json('GET',
+                                         'Get stocked policies',
+                                         url)
+        exist_policy = False
+        for policy in policies:
+            if policy["policyAcronym"] == policy_name:
+                exist_policy = True
+        return (len(policies) >= req_policies) and exist_policy