1 files changed, 83 insertions, 0 deletions
diff --git a/python/vyos/xml_ref/__init__.py b/python/vyos/xml_ref/__init__.py
new file mode 100644
index 000000000..bf434865d
--- /dev/null
+++ b/python/vyos/xml_ref/__init__.py
@@ -0,0 +1,83 @@
+# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Optional, Union, TYPE_CHECKING
+from vyos.xml_ref import definition
+
+if TYPE_CHECKING:
+    from vyos.config import ConfigDict
+
+def load_reference(cache=[]):
+    if cache:
+        return cache[0]
+
+    xml = definition.Xml()
+
+    try:
+        from vyos.xml_ref.cache import reference
+    except Exception:
+        raise ImportError('no xml reference cache !!')
+
+    if not reference:
+        raise ValueError('empty xml reference cache !!')
+
+    xml.define(reference)
+    cache.append(xml)
+
+    return xml
+
+def is_tag(path: list) -> bool:
+    return load_reference().is_tag(path)
+
+def is_tag_value(path: list) -> bool:
+    return load_reference().is_tag_value(path)
+
+def is_multi(path: list) -> bool:
+    return load_reference().is_multi(path)
+
+def is_valueless(path: list) -> bool:
+    return load_reference().is_valueless(path)
+
+def is_leaf(path: list) -> bool:
+    return load_reference().is_leaf(path)
+
+def cli_defined(path: list, node: str, non_local=False) -> bool:
+    return load_reference().cli_defined(path, node, non_local=non_local)
+
+def component_version() -> dict:
+    return load_reference().component_version()
+
+def default_value(path: list) -> Optional[Union[str, list]]:
+    return load_reference().default_value(path)
+
+def multi_to_list(rpath: list, conf: dict) -> dict:
+    return load_reference().multi_to_list(rpath, conf)
+
+def get_defaults(path: list, get_first_key=False, recursive=False) -> dict:
+    return load_reference().get_defaults(path, get_first_key=get_first_key,
+                                         recursive=recursive)
+
+def relative_defaults(rpath: list, conf: dict, get_first_key=False,
+                      recursive=False) -> dict:
+
+    return load_reference().relative_defaults(rpath, conf,
+                                              get_first_key=get_first_key,
+                                              recursive=recursive)
+
+def from_source(d: dict, path: list) -> bool:
+    return definition.from_source(d, path)
+
+def ext_dict_merge(source: dict, destination: Union[dict, 'ConfigDict']):
+    return definition.ext_dict_merge(source, destination)