[VVP] udpating scripts for casablanca

[vvp/validation-scripts.git] / ice_validator / tests / cached_yaml.py

diff --git a/ice_validator/tests/cached_yaml.py b/ice_validator/tests/cached_yaml.py
new file mode 100644 (file)
index 0000000..99fbd2c
--- /dev/null
+++ b/ice_validator/tests/cached_yaml.py
@@ -0,0 +1,60 @@
+# -*- coding: utf8 -*-
+# ============LICENSE_START====================================================
+# org.onap.vvp/validation-scripts
+# ===================================================================
+# Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+# ===================================================================
+#
+# Unless otherwise specified, all software contained herein is licensed
+# under the Apache License, Version 2.0 (the "License");
+# you may not use this software 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.
+#
+#
+#
+# Unless otherwise specified, all documentation contained herein is licensed
+# under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+# you may not use this documentation except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#             https://creativecommons.org/licenses/by/4.0/
+#
+# Unless required by applicable law or agreed to in writing, documentation
+# 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.
+#
+# ============LICENSE_END============================================
+
+import os
+
+import yaml
+
+YAML_CACHE = {}
+resolver = yaml.resolver
+YAMLError = yaml.YAMLError
+constructor = yaml.constructor
+
+
+def add_constructor(tag, constructor):
+    yaml.add_constructor(
+        tag,
+        constructor,
+    )
+
+
+def load(fp):
+    """Provides cached loading of yaml files"""
+    abs_path = os.path.abspath(fp.name)
+    if abs_path not in YAML_CACHE:
+        YAML_CACHE[abs_path] = yaml.safe_load(fp)
+    return YAML_CACHE[abs_path]