Initial commit

[ta/config-manager.git] / cmframework / src / cmframework / utils / cmstatehandler.py

diff --git a/cmframework/src/cmframework/utils/cmstatehandler.py b/cmframework/src/cmframework/utils/cmstatehandler.py
new file mode 100644 (file)
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+++ b/cmframework/src/cmframework/utils/cmstatehandler.py
@@ -0,0 +1,59 @@
+# Copyright 2019 Nokia
+
+# 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 __future__ import print_function
+import logging
+from cmframework.apis import cmerror
+
+
+class CMStateHandler(object):
+    def __init__(self, plugin_path, **kw):
+        try:
+            logging.debug('Loading backend plugin from %s', plugin_path)
+            # Separate class path and module name
+            parts = plugin_path.rsplit('.', 1)
+            self.plugin_path = parts[0]
+            class_name = parts[1]
+            logging.debug('Importing %s from %s', class_name, self.plugin_path)
+            module = __import__(self.plugin_path, fromlist=[self.plugin_path])
+            classobj = getattr(module, class_name)
+            logging.debug('Constructing state handler with args %r', kw)
+            self.plugin = classobj(**kw)
+        except ImportError as exp1:
+            raise cmerror.CMError(str(exp1))
+        except Exception as exp2:
+            raise cmerror.CMError(str(exp2))
+
+    def get(self, domain, name):
+        logging.debug('get called for %s %s', domain, name)
+        return self.plugin.get(domain, name)
+
+    def get_domain(self, domain):
+        logging.debug('get_domain called for %s', domain)
+        return self.plugin.get_domain(domain)
+
+    def set(self, domain, name, value):
+        logging.debug('set called for setting %s %s=%s', domain, name, value)
+        return self.plugin.set(domain, name, value)
+
+    def get_domains(self):
+        logging.debug('get_domains called')
+        return self.plugin.get_domains()
+
+    def delete(self, domain, name):
+        logging.debug('delete called for %s %s', domain, name)
+        return self.plugin.delete(domain, name)
+
+    def delete_domain(self, domain):
+        logging.debug('delete_domain called for %s', domain)
+        return self.plugin.delete_domain(domain)