Push license selection seed code

Issue-ID: OPTFRA-48
Change-Id: I8555f03ed5bf6ee14409b0f5614607c696ee22a6
Signed-off-by: Sastry Isukapalli <sastry@research.att.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/adapters/sdc/constraint_handler.py b/adapters/sdc/constraint_handler.py
new file mode 100644
index 0000000..2aae9a0
--- /dev/null
+++ b/adapters/sdc/constraint_handler.py
@@ -0,0 +1,81 @@
+# -------------------------------------------------------------------------

+#   Copyright (c) 2015-2017 AT&T Intellectual Property

+#

+#   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.

+#

+# -------------------------------------------------------------------------

+#

+

+from osdf.config.base import osdf_config

+from osdf.utils.programming_utils import dot_notation

+

+ns = {'p': 'http://xmlns.onap.org/sdc/license-model/1.0'}

+config_local = osdf_config.core

+

+

+def choose_license(license_artifacts, order_info, service_type):

+    entitlement_pool_uuids = []

+    license_key_group_uuids = []

+

+    for license_artifact in license_artifacts:

+        for feature in license_artifact.findall('./p:feature-group-list/', ns):

+            for entitlement in feature.findall('./p:entitlement-pool-list/', ns):

+                if is_valid(entitlement, order_info, service_type):

+                    entitlement_pool_uuid = entitlement.find('p:entitlement-pool-uuid', ns).text

+                    entitlement_pool_uuids.append(entitlement_pool_uuid)

+            for license_key_group in feature.findall('./p:license-key-group-list/', ns):

+                if is_valid(license_key_group, order_info, service_type):

+                    license_key_group_uuid = license_key_group.find('p:license-key-group-uuid', ns).text

+                    license_key_group_uuids.append(license_key_group_uuid)

+    return entitlement_pool_uuids, license_key_group_uuids

+

+

+# element is expected to be a license-key-group or entitlement-pool

+# if these elements diverge at a later date this method should be refactored

+def is_valid(element, order_info, service_type):

+    for limit in element.findall('./p:sp-limits/p:limit', ns):

+        # description = limit.find('p:description', ns).text

+        metric_value = limit.find('p:values', ns).text

+        metric = limit.find('p:metric', ns).text

+        try:

+            order_value = dot_notation(order_info, config_local['service_info'][service_type][metric])

+            # print("The order has the value %s for the metric %s and the limit specifies the value %s. The limit has the description %s." % (order_value, metric, metric_value, description))

+            if isinstance(order_value, list): # it is possible a list is returned, for example a list of vnfs for vCPE

+                for arr_value in order_value:

+                    if str(metric_value) != str(arr_value):

+                        return False

+            else:

+                if str(metric_value) != str(order_value):

+                    return False

+        except KeyError:

+            return False

+    # vendor limits

+    for limit in element.findall('./p:vendor-limits/p:limit', ns):

+            # description = limit.find('p:description', ns).text

+            metric_value = limit.find('p:values', ns).text

+            metric = limit.find('p:metric', ns).text

+            try:

+                order_value = dot_notation(order_info, config_local['service_info'][service_type][metric])

+                if isinstance(order_value, list): # it is possible a list is returned, for example a list of vnfs for vCPE

+                    for arr_value in order_value:

+                        if str(metric_value) != str(arr_value):

+                            return False

+                else:

+                    if str(metric_value) != str(order_value):

+                        return False

+                # print("The order has the value %s for the metric %s and the limit specifies the value %s. The limit has the description %s." % (order_value, metric, metric_value, description))

+

+            except KeyError:

+                return False

+    return True

+