Initial commit

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

diff --git a/cmframework/src/cmframework/utils/cmstatefilehandler.py b/cmframework/src/cmframework/utils/cmstatefilehandler.py
new file mode 100644 (file)
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+++ b/cmframework/src/cmframework/utils/cmstatefilehandler.py
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+# 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 urlparse import urlparse
+from configparser import ConfigParser
+import os.path
+import os
+import stat
+
+from cmframework.apis import cmerror
+from cmframework.apis import cmstate
+
+
+class CMStateFileHandler(cmstate.CMState):
+    def __init__(self, **kw):
+        uridata = urlparse(kw['uri'])
+        self.path = uridata.path
+        self.configparser = ConfigParser()
+        self._load_config_file()
+
+    def _load_config_file(self):
+        try:
+            if os.path.isfile(self.path):
+                with open(self.path, 'r') as cf:
+                    self.configparser.read_file(cf)
+            else:
+                with open(self.path, 'w') as cf:
+                    pass
+        except IOError as ex:
+            raise cmerror.CMError(str(ex))
+
+    def _write_config_file(self):
+        try:
+            with open(self.path, 'w') as cf:
+                os.chmod(self.path, stat.S_IRUSR | stat.S_IWUSR)
+                self.configparser.write(cf)
+        except IOError as ex:
+            raise cmerror.CMError(str(ex))
+
+    def get(self, domain, name):
+        logging.debug('get called for %s %s', domain, name)
+
+        if self.configparser.has_section(domain):
+            if self.configparser.has_option(domain, name):
+                return self.configparser.get(domain, name)
+
+        return None
+
+    def get_domain(self, domain):
+        logging.debug('get_domain called for %s', domain)
+
+        if self.configparser.has_section(domain):
+            return self.configparser.items(domain)
+
+        return None
+
+    def set(self, domain, name, value):
+        logging.debug('set called for setting %s %s=%s', domain, name, value)
+
+        if not self.configparser.has_section(domain):
+            self.configparser.add_section(domain)
+
+        self.configparser.set(domain, name, value)
+
+        self._write_config_file()
+
+    def get_domains(self):
+        logging.debug('get_domains called')
+
+        return self.configparser.sections()
+
+    def delete(self, domain, name):
+        logging.debug('delete called for %s %s', domain, name)
+
+        if self.configparser.has_section(domain):
+            self.configparser.remove_option(domain, name)
+
+        self._write_config_file()
+
+    def delete_domain(self, domain):
+        logging.debug('delete_domain called for %s', domain)
+
+        self.configparser.remove_section(domain)
+
+        self._write_config_file()