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diff --git a/mod/onboardingapi/dcae_cli/util/policy.py b/mod/onboardingapi/dcae_cli/util/policy.py
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+# ============LICENSE_START=======================================================
+# org.onap.dcae
+# ================================================================================
+# Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# 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.
+# ============LICENSE_END=========================================================
+#
+# ECOMP is a trademark and service mark of AT&T Intellectual Property.
+
+"""
+Function for Policy schema validation
+"""
+
+from jsonschema import validate, ValidationError
+from dcae_cli.util.logger import get_logger
+from dcae_cli.util import reraise_with_msg
+
+logger = get_logger('policy')
+
+_SCHEMA = {
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "title": "Schema for policy changes",
+ "type": "object",
+ "properties": {
+ "updated_policies": {"type": "array"},
+ "removed_policies": {"type": "array"},
+ "policies": {"type": "array"}
+ },
+ "additionalProperties": False
+}
+
+_validation_msg = """
+Is your Policy file a valid json?
+Does your Policy file follow this format?
+
+{
+ "updated_policies": [{},{},...],
+ "removed_policies": [{},{},...],
+ "policies": [{},{},...]
+}
+"""
+
+
+def validate_against_policy_schema(policy_file):
+ """Validate the policy file against the schema"""
+
+ try:
+ validate(policy_file, _SCHEMA)
+ except ValidationError as e:
+ logger.error("Policy file validation issue")
+ logger.error(_validation_msg)
+ reraise_with_msg(e, as_dcae=True)
+ \ No newline at end of file