Seed code for yarf

[ta/yarf.git] / src / yarf / iniloader.py

diff --git a/src/yarf/iniloader.py b/src/yarf/iniloader.py
new file mode 100644 (file)
index 0000000..3c762ea
--- /dev/null
+++ b/src/yarf/iniloader.py
@@ -0,0 +1,66 @@
+# 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.
+#
+
+import configparser
+from yarf.exceptions import ConfigError
+
+
+class INILoader(dict):
+    def __init__(self, inifile, defaults=None, defaultsection=None):
+        super(INILoader, self).__init__(self)
+        self.inifile = inifile
+        self.handlers = 'handlers'
+        self.configparser = configparser.ConfigParser(defaults)
+        self.config = self.configparser.read(inifile)
+        self.defaultsection = defaultsection
+        if inifile not in self.config:
+            raise ConfigError("Failed to read config file: %s" % inifile)
+
+    def get_sections(self):
+        return self.configparser.sections()
+
+    def get_handlers(self, section):
+        return self[section][self.handlers].split(',')
+
+    def __getitem__(self, key):
+        try:
+            return self.configparser[key]
+        except KeyError:
+            raise ConfigError("No such key %s" % key)
+
+    def get(self, key, section=None, type_of_value=str):
+        if section is None and self.defaultsection is not None:
+            section = self.defaultsection
+        else:
+            return None
+
+        if type_of_value is int:
+            return self.configparser.getint(section, key)
+        elif type_of_value is bool:
+            return self.configparser.getboolean(section, key)
+        elif type_of_value is float:
+            return self.configparser.getfloat(section, key)
+        return self.configparser.get(section, key)
+
+    def keys(self):
+        return self.configparser.sections()
+
+    def get_section(self, section, format='list'):
+        if section in self.keys():
+            items = self.configparser.items(section)
+            if format == 'dict':
+                return dict(items)
+            return items
+        return None