xml: T5218: add operations on xml cache

1 files changed, 58 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..66525865c
--- /dev/null
+++ b/python/vyos/xml_ref/__init__.py
@@ -0,0 +1,58 @@
+# 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 vyos.xml_ref import definition
+
+def load_reference(cache=[]):
+    if cache:
+        return cache[0]
+
+    xml = definition.Xml()
+
+    try:
+        from vyos.xml_ref.cache import reference
+        xml.define(reference)
+        cache.append(xml)
+    except Exception:
+        raise ImportError('no xml reference cache !!')
+
+    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 component_version() -> dict:
+    return load_reference().component_version()
+
+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) -> dict:
+    return load_reference().get_defaults(path, get_first_key=get_first_key)
+
+def merge_defaults(path: list, conf: dict) -> dict:
+    return load_reference().merge_defaults(path, conf)