1 files changed, 66 insertions, 0 deletions
diff --git a/python.d/python_modules/bases/loaders.py b/python.d/python_modules/bases/loaders.py
new file mode 100644
index 000000000..d18b9dcd0
--- /dev/null
+++ b/python.d/python_modules/bases/loaders.py
@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+# Description:
+# Author: Ilya Mashchenko (l2isbad)
+
+import types
+from sys import version_info
+
+PY_VERSION = version_info[:2]
+
+if PY_VERSION > (3, 1):
+    from pyyaml3 import SafeLoader as YamlSafeLoader
+    from importlib.machinery import SourceFileLoader
+    DEFAULT_MAPPING_TAG = 'tag:yaml.org,2002:map'
+else:
+    from pyyaml2 import SafeLoader as YamlSafeLoader
+    from imp import load_source as SourceFileLoader
+    DEFAULT_MAPPING_TAG = u'tag:yaml.org,2002:map'
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    from third_party.ordereddict import OrderedDict
+
+
+def dict_constructor(loader, node):
+    return OrderedDict(loader.construct_pairs(node))
+
+
+YamlSafeLoader.add_constructor(DEFAULT_MAPPING_TAG, dict_constructor)
+
+
+class YamlOrderedLoader:
+    @staticmethod
+    def load_config_from_file(file_name):
+        opened, loaded = False, False
+        try:
+            stream = open(file_name, 'r')
+            opened = True
+            loader = YamlSafeLoader(stream)
+            loaded = True
+            parsed = loader.get_single_data() or dict()
+        except Exception as error:
+            return dict(), error
+        else:
+            return parsed, None
+        finally:
+            if opened:
+                stream.close()
+            if loaded:
+                loader.dispose()
+
+
+class SourceLoader:
+    @staticmethod
+    def load_module_from_file(name, path):
+        try:
+            loaded = SourceFileLoader(name, path)
+            if isinstance(loaded, types.ModuleType):
+                return loaded, None
+            return loaded.load_module(), None
+        except Exception as error:
+            return None, error
+
+
+class ModuleAndConfigLoader(YamlOrderedLoader, SourceLoader):
+    pass