Adding NetSlice Tests
[osm/NBI.git] / osm_nbi / descriptor_topics.py
index b59b4f8..5612fdf 100644 (file)
@@ -1,5 +1,18 @@
 # -*- coding: utf-8 -*-
 
+# 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.
+
 import tarfile
 import yaml
 import json
@@ -8,7 +21,11 @@ from hashlib import md5
 from osm_common.dbbase import DbException, deep_update_rfc7396
 from http import HTTPStatus
 from validation import ValidationError, pdu_new_schema, pdu_edit_schema
-from base_topic import BaseTopic, EngineException
+from base_topic import BaseTopic, EngineException, get_iterable
+from osm_im.vnfd import vnfd as vnfd_im
+from osm_im.nsd import nsd as nsd_im
+from pyangbind.lib.serialise import pybindJSONDecoder
+import pyangbind.lib.pybindJSON as pybindJSON
 
 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
 
@@ -19,24 +36,38 @@ class DescriptorTopic(BaseTopic):
         BaseTopic.__init__(self, db, fs, msg)
 
     def check_conflict_on_edit(self, session, final_content, edit_content, _id, force=False):
-        # check that this id is not present
-        _filter = {"id": final_content["id"]}
-        if _id:
-            _filter["_id.neq"] = _id
+        # 1. validate again with pyangbind
+        # 1.1. remove internal keys
+        internal_keys = {}
+        for k in ("_id", "_admin"):
+            if k in final_content:
+                internal_keys[k] = final_content.pop(k)
+        serialized = self._validate_input_new(final_content, force)
+        # 1.2. modify final_content with a serialized version
+        final_content.clear()
+        final_content.update(serialized)
+        # 1.3. restore internal keys
+        for k, v in internal_keys.items():
+            final_content[k] = v
 
-        _filter.update(self._get_project_filter(session, write=False, show_all=False))
-        if self.db.get_one(self.topic, _filter, fail_on_empty=False):
-            raise EngineException("{} with id '{}' already exists for this project".format(self.topic[:-1],
-                                                                                           final_content["id"]),
-                                  HTTPStatus.CONFLICT)
-        # TODO validate with pyangbind. Load and dumps to convert data types
+        if force:
+            return
+        # 2. check that this id is not present
+        if "id" in edit_content:
+            _filter = self._get_project_filter(session, write=False, show_all=False)
+            _filter["id"] = final_content["id"]
+            _filter["_id.neq"] = _id
+            if self.db.get_one(self.topic, _filter, fail_on_empty=False):
+                raise EngineException("{} with id '{}' already exists for this project".format(self.topic[:-1],
+                                                                                               final_content["id"]),
+                                      HTTPStatus.CONFLICT)
 
     @staticmethod
     def format_on_new(content, project_id=None, make_public=False):
         BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
         content["_admin"]["onboardingState"] = "CREATED"
         content["_admin"]["operationalState"] = "DISABLED"
-        content["_admin"]["usageSate"] = "NOT_IN_USE"
+        content["_admin"]["usageState"] = "NOT_IN_USE"
 
     def delete(self, session, _id, force=False, dry_run=False):
         """
@@ -124,7 +155,7 @@ class DescriptorTopic(BaseTopic):
         :param kwargs: user query string to override parameters. NOT USED
         :param headers:  http request headers
         :param force: to be more tolerant with validation
-        :return: True package has is completely uploaded or False if partial content has been uplodaed.
+        :return: True if package is completely uploaded or False if partial content has been uploded
             Raise exception on error
         """
         # Check that _id exists and it is valid
@@ -248,7 +279,7 @@ class DescriptorTopic(BaseTopic):
             if kwargs:
                 self._update_input_with_kwargs(indata, kwargs)
             # it will call overrides method at VnfdTopic or NsdTopic
-            indata = self._validate_input_new(indata, force=force)
+            # indata = self._validate_input_edit(indata, force=force)
 
             deep_update_rfc7396(current_desc, indata)
             self.check_conflict_on_edit(session, current_desc, indata, _id=_id, force=force)
@@ -282,17 +313,20 @@ class DescriptorTopic(BaseTopic):
         """
         Return the file content of a vnfd or nsd
         :param session: contains the used login username and working project
-        :param _id: Identity of the vnfd, ndsd
+        :param _id: Identity of the vnfd, nsd
         :param path: artifact path or "$DESCRIPTOR" or None
         :param accept_header: Content of Accept header. Must contain applition/zip or/and text/plain
-        :return: opened file or raises an exception
+        :return: opened file plus Accept format or raises an exception
         """
         accept_text = accept_zip = False
         if accept_header:
             if 'text/plain' in accept_header or '*/*' in accept_header:
                 accept_text = True
             if 'application/zip' in accept_header or '*/*' in accept_header:
-                accept_zip = True
+                accept_zip = 'application/zip'
+            elif 'application/gzip' in accept_header:
+                accept_zip = 'application/gzip'
+
         if not accept_text and not accept_zip:
             raise EngineException("provide request header 'Accept' with 'application/zip' or 'text/plain'",
                                   http_code=HTTPStatus.NOT_ACCEPTABLE)
@@ -330,7 +364,30 @@ class DescriptorTopic(BaseTopic):
                 # TODO generate zipfile if not present
                 raise EngineException("Only allowed 'text/plain' Accept header for this descriptor. To be solved in "
                                       "future versions", http_code=HTTPStatus.NOT_ACCEPTABLE)
-            return self.fs.file_open((storage['folder'], storage['zipfile']), "rb"), "application/zip"
+            return self.fs.file_open((storage['folder'], storage['zipfile']), "rb"), accept_zip
+
+    def pyangbind_validation(self, item, data, force=False):
+        try:
+            if item == "vnfds":
+                myvnfd = vnfd_im()
+                pybindJSONDecoder.load_ietf_json({'vnfd:vnfd-catalog': {'vnfd': [data]}}, None, None, obj=myvnfd,
+                                                 path_helper=True, skip_unknown=force)
+                out = pybindJSON.dumps(myvnfd, mode="ietf")
+            elif item == "nsds":
+                mynsd = nsd_im()
+                pybindJSONDecoder.load_ietf_json({'nsd:nsd-catalog': {'nsd': [data]}}, None, None, obj=mynsd,
+                                                 path_helper=True, skip_unknown=force)
+                out = pybindJSON.dumps(mynsd, mode="ietf")
+            else:
+                raise EngineException("Not possible to validate '{}' item".format(item),
+                                      http_code=HTTPStatus.INTERNAL_SERVER_ERROR)
+
+            desc_out = self._remove_envelop(yaml.safe_load(out))
+            return desc_out
+
+        except Exception as e:
+            raise EngineException("Error in pyangbind validation: {}".format(str(e)),
+                                  http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
 
 
 class VnfdTopic(DescriptorTopic):
@@ -351,10 +408,31 @@ class VnfdTopic(DescriptorTopic):
             clean_indata = clean_indata['vnfd-catalog']
         if clean_indata.get('vnfd'):
             if not isinstance(clean_indata['vnfd'], list) or len(clean_indata['vnfd']) != 1:
-                raise EngineException("'vnfd' must be a list only one element")
+                raise EngineException("'vnfd' must be a list of only one element")
             clean_indata = clean_indata['vnfd'][0]
+        elif clean_indata.get('vnfd:vnfd'):
+            if not isinstance(clean_indata['vnfd:vnfd'], list) or len(clean_indata['vnfd:vnfd']) != 1:
+                raise EngineException("'vnfd:vnfd' must be a list of only one element")
+            clean_indata = clean_indata['vnfd:vnfd'][0]
         return clean_indata
 
+    def check_conflict_on_edit(self, session, final_content, edit_content, _id, force=False):
+        super().check_conflict_on_edit(session, final_content, edit_content, _id, force=force)
+
+        # set type of vnfd
+        contains_pdu = False
+        contains_vdu = False
+        for vdu in get_iterable(final_content.get("vdu")):
+            if vdu.get("pdu-type"):
+                contains_pdu = True
+            else:
+                contains_vdu = True
+        if contains_pdu:
+            final_content["_admin"]["type"] = "hnfd" if contains_vdu else "pnfd"
+        elif contains_vdu:
+            final_content["_admin"]["type"] = "vnfd"
+        # if neither vud nor pdu do not fill type
+
     def check_conflict_on_del(self, session, _id, force=False):
         """
         Check that there is not any NSD that uses this VNFD. Only NSDs belonging to this project are considered. Note
@@ -384,11 +462,144 @@ class VnfdTopic(DescriptorTopic):
             raise EngineException("There is soame NSD that depends on this VNFD", http_code=HTTPStatus.CONFLICT)
 
     def _validate_input_new(self, indata, force=False):
-        # TODO validate with pyangbind, serialize
+        indata = self.pyangbind_validation("vnfds", indata, force)
+        # Cross references validation in the descriptor
+        if indata.get("vdu"):
+            if not indata.get("mgmt-interface"):
+                raise EngineException("'mgmt-interface' is a mandatory field and it is not defined",
+                                      http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+            if indata["mgmt-interface"].get("cp"):
+                for cp in get_iterable(indata.get("connection-point")):
+                    if cp["name"] == indata["mgmt-interface"]["cp"]:
+                        break
+                else:
+                    raise EngineException("mgmt-interface:cp='{}' must match an existing connection-point"
+                                          .format(indata["mgmt-interface"]["cp"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+
+        for vdu in get_iterable(indata.get("vdu")):
+            for interface in get_iterable(vdu.get("interface")):
+                if interface.get("external-connection-point-ref"):
+                    for cp in get_iterable(indata.get("connection-point")):
+                        if cp["name"] == interface["external-connection-point-ref"]:
+                            break
+                    else:
+                        raise EngineException("vdu[id='{}']:interface[name='{}']:external-connection-point-ref='{}' "
+                                              "must match an existing connection-point"
+                                              .format(vdu["id"], interface["name"],
+                                                      interface["external-connection-point-ref"]),
+                                              http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+
+                elif interface.get("internal-connection-point-ref"):
+                    for internal_cp in get_iterable(vdu.get("internal-connection-point")):
+                        if interface["internal-connection-point-ref"] == internal_cp.get("id"):
+                            break
+                    else:
+                        raise EngineException("vdu[id='{}']:interface[name='{}']:internal-connection-point-ref='{}' "
+                                              "must match an existing vdu:internal-connection-point"
+                                              .format(vdu["id"], interface["name"],
+                                                      interface["internal-connection-point-ref"]),
+                                              http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+        for ivld in get_iterable(indata.get("internal-vld")):
+            for icp in get_iterable(ivld.get("internal-connection-point")):
+                icp_mark = False
+                for vdu in get_iterable(indata.get("vdu")):
+                    for internal_cp in get_iterable(vdu.get("internal-connection-point")):
+                        if icp["id-ref"] == internal_cp["id"]:
+                            icp_mark = True
+                            break
+                    if icp_mark:
+                        break
+                else:
+                    raise EngineException("internal-vld[id='{}']:internal-connection-point='{}' must match an existing "
+                                          "vdu:internal-connection-point".format(ivld["id"], icp["id-ref"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+            if ivld.get("ip-profile-ref"):
+                for ip_prof in get_iterable(indata.get("ip-profiles")):
+                    if ip_prof["name"] == get_iterable(ivld.get("ip-profile-ref")):
+                        break
+                else:
+                    raise EngineException("internal-vld[id='{}']:ip-profile-ref='{}' does not exist".format(
+                        ivld["id"], ivld["ip-profile-ref"]),
+                        http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+        for mp in get_iterable(indata.get("monitoring-param")):
+            if mp.get("vdu-monitoring-param"):
+                mp_vmp_mark = False
+                for vdu in get_iterable(indata.get("vdu")):
+                    for vmp in get_iterable(vdu.get("monitoring-param")):
+                        if vmp["id"] == mp["vdu-monitoring-param"].get("vdu-monitoring-param-ref") and vdu["id"] ==\
+                                mp["vdu-monitoring-param"]["vdu-ref"]:
+                            mp_vmp_mark = True
+                            break
+                    if mp_vmp_mark:
+                        break
+                else:
+                    raise EngineException("monitoring-param:vdu-monitoring-param:vdu-monitoring-param-ref='{}' not "
+                                          "defined at vdu[id='{}'] or vdu does not exist"
+                                          .format(mp["vdu-monitoring-param"]["vdu-monitoring-param-ref"],
+                                                  mp["vdu-monitoring-param"]["vdu-ref"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+            elif mp.get("vdu-metric"):
+                mp_vm_mark = False
+                for vdu in get_iterable(indata.get("vdu")):
+                    if vdu.get("vdu-configuration"):
+                        for metric in get_iterable(vdu["vdu-configuration"].get("metrics")):
+                            if metric["name"] == mp["vdu-metric"]["vdu-metric-name-ref"] and vdu["id"] == \
+                                    mp["vdu-metric"]["vdu-ref"]:
+                                mp_vm_mark = True
+                                break
+                        if mp_vm_mark:
+                            break
+                else:
+                    raise EngineException("monitoring-param:vdu-metric:vdu-metric-name-ref='{}' not defined at "
+                                          "vdu[id='{}'] or vdu does not exist"
+                                          .format(mp["vdu-metric"]["vdu-metric-name-ref"],
+                                                  mp["vdu-metric"]["vdu-ref"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+
+        for sgd in get_iterable(indata.get("scaling-group-descriptor")):
+            for sp in get_iterable(sgd.get("scaling-policy")):
+                for sc in get_iterable(sp.get("scaling-criteria")):
+                    for mp in get_iterable(indata.get("monitoring-param")):
+                        if mp["id"] == get_iterable(sc.get("vnf-monitoring-param-ref")):
+                            break
+                    else:
+                        raise EngineException("scaling-group-descriptor[name='{}']:scaling-criteria[name='{}']:"
+                                              "vnf-monitoring-param-ref='{}' not defined in any monitoring-param"
+                                              .format(sgd["name"], sc["name"], sc["vnf-monitoring-param-ref"]),
+                                              http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+            for sgd_vdu in get_iterable(sgd.get("vdu")):
+                sgd_vdu_mark = False
+                for vdu in get_iterable(indata.get("vdu")):
+                    if vdu["id"] == sgd_vdu["vdu-id-ref"]:
+                        sgd_vdu_mark = True
+                        break
+                if sgd_vdu_mark:
+                    break
+            else:
+                raise EngineException("scaling-group-descriptor[name='{}']:vdu-id-ref={} does not match any vdu"
+                                      .format(sgd["name"], sgd_vdu["vdu-id-ref"]),
+                                      http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+            for sca in get_iterable(sgd.get("scaling-config-action")):
+                if not indata.get("vnf-configuration"):
+                    raise EngineException("'vnf-configuration' not defined in the descriptor but it is referenced by "
+                                          "scaling-group-descriptor[name='{}']:scaling-config-action"
+                                          .format(sgd["name"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+                for primitive in get_iterable(indata["vnf-configuration"].get("config-primitive")):
+                    if primitive["name"] == sca["vnf-config-primitive-name-ref"]:
+                        break
+                else:
+                    raise EngineException("scaling-group-descriptor[name='{}']:scaling-config-action:vnf-config-"
+                                          "primitive-name-ref='{}' does not match any "
+                                          "vnf-configuration:config-primitive:name"
+                                          .format(sgd["name"], sca["vnf-config-primitive-name-ref"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+        # TODO validata that if contains cloud-init-file or charms, have artifacts _admin.storage."pkg-dir" is not none
         return indata
 
     def _validate_input_edit(self, indata, force=False):
-        # TODO validate with pyangbind, serialize
+        # not needed to validate with pyangbind becuase it will be validated at check_conflict_on_edit
         return indata
 
 
@@ -411,45 +622,92 @@ class NsdTopic(DescriptorTopic):
             clean_indata = clean_indata['nsd-catalog']
         if clean_indata.get('nsd'):
             if not isinstance(clean_indata['nsd'], list) or len(clean_indata['nsd']) != 1:
-                raise EngineException("'nsd' must be a list only one element")
+                raise EngineException("'nsd' must be a list of only one element")
             clean_indata = clean_indata['nsd'][0]
+        elif clean_indata.get('nsd:nsd'):
+            if not isinstance(clean_indata['nsd:nsd'], list) or len(clean_indata['nsd:nsd']) != 1:
+                raise EngineException("'nsd:nsd' must be a list of only one element")
+            clean_indata = clean_indata['nsd:nsd'][0]
         return clean_indata
 
     def _validate_input_new(self, indata, force=False):
-        # transform constituent-vnfd:member-vnf-index to string
-        if indata.get("constituent-vnfd"):
-            for constituent_vnfd in indata["constituent-vnfd"]:
-                if "member-vnf-index" in constituent_vnfd:
-                    constituent_vnfd["member-vnf-index"] = str(constituent_vnfd["member-vnf-index"])
-
-        # TODO validate with pyangbind, serialize
+        indata = self.pyangbind_validation("nsds", indata, force)
+        # Cross references validation in the descriptor
+        # TODO validata that if contains cloud-init-file or charms, have artifacts _admin.storage."pkg-dir" is not none
+        for vld in get_iterable(indata.get("vld")):
+            for vnfd_cp in get_iterable(vld.get("vnfd-connection-point-ref")):
+                for constituent_vnfd in get_iterable(indata.get("constituent-vnfd")):
+                    if vnfd_cp["member-vnf-index-ref"] == constituent_vnfd["member-vnf-index"]:
+                        if vnfd_cp.get("vnfd-id-ref") and vnfd_cp["vnfd-id-ref"] != constituent_vnfd["vnfd-id-ref"]:
+                            raise EngineException("Error at vld[id='{}']:vnfd-connection-point-ref[vnfd-id-ref='{}'] "
+                                                  "does not match constituent-vnfd[member-vnf-index='{}']:vnfd-id-ref"
+                                                  " '{}'".format(vld["id"], vnfd_cp["vnfd-id-ref"],
+                                                                 constituent_vnfd["member-vnf-index"],
+                                                                 constituent_vnfd["vnfd-id-ref"]),
+                                                  http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+                        break
+                else:
+                    raise EngineException("Error at vld[id='{}']:vnfd-connection-point-ref[member-vnf-index-ref='{}'] "
+                                          "does not match any constituent-vnfd:member-vnf-index"
+                                          .format(vld["id"], vnfd_cp["member-vnf-index-ref"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
         return indata
 
     def _validate_input_edit(self, indata, force=False):
-        # TODO validate with pyangbind, serialize
+        # not needed to validate with pyangbind becuase it will be validated at check_conflict_on_edit
         return indata
 
-    def _check_descriptor_dependencies(self, session, descriptor):
+    def _check_descriptor_dependencies(self, session, descriptor, force=False):
         """
-        Check that the dependent descriptors exist on a new descriptor or edition
+        Check that the dependent descriptors exist on a new descriptor or edition. Also checks references to vnfd
+        connection points are ok
         :param session: client session information
         :param descriptor: descriptor to be inserted or edit
+        :param force: if true skip dependencies checking
         :return: None or raises exception
         """
-        if not descriptor.get("constituent-vnfd"):
+        if force:
             return
-        for vnf in descriptor["constituent-vnfd"]:
-            vnfd_id = vnf["vnfd-id-ref"]
-            filter_q = self._get_project_filter(session, write=False, show_all=True)
-            filter_q["id"] = vnfd_id
-            if not self.db.get_list("vnfds", filter_q):
-                raise EngineException("Descriptor error at 'constituent-vnfd':'vnfd-id-ref'='{}' references a non "
-                                      "existing vnfd".format(vnfd_id), http_code=HTTPStatus.CONFLICT)
+        member_vnfd_index = {}
+        if descriptor.get("constituent-vnfd") and not force:
+            for vnf in descriptor["constituent-vnfd"]:
+                vnfd_id = vnf["vnfd-id-ref"]
+                filter_q = self._get_project_filter(session, write=False, show_all=True)
+                filter_q["id"] = vnfd_id
+                vnf_list = self.db.get_list("vnfds", filter_q)
+                if not vnf_list:
+                    raise EngineException("Descriptor error at 'constituent-vnfd':'vnfd-id-ref'='{}' references a non "
+                                          "existing vnfd".format(vnfd_id), http_code=HTTPStatus.CONFLICT)
+                # elif len(vnf_list) > 1:
+                #     raise EngineException("More than one vnfd found for id='{}'".format(vnfd_id),
+                #                           http_code=HTTPStatus.CONFLICT)
+                member_vnfd_index[vnf["member-vnf-index"]] = vnf_list[0]
+
+        # Cross references validation in the descriptor and vnfd connection point validation
+        for vld in get_iterable(descriptor.get("vld")):
+            for referenced_vnfd_cp in get_iterable(vld.get("vnfd-connection-point-ref")):
+                # look if this vnfd contains this connection point
+                vnfd = member_vnfd_index.get(referenced_vnfd_cp["member-vnf-index-ref"])
+                if not vnfd:
+                    raise EngineException("Error at vld[id='{}']:vnfd-connection-point-ref[member-vnf-index-ref='{}'] "
+                                          "does not match any constituent-vnfd:member-vnf-index"
+                                          .format(vld["id"], referenced_vnfd_cp["member-vnf-index-ref"]),
+                                          http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
+                for vnfd_cp in get_iterable(vnfd.get("connection-point")):
+                    if referenced_vnfd_cp.get("vnfd-connection-point-ref") == vnfd_cp["name"]:
+                        break
+                else:
+                    raise EngineException(
+                        "Error at vld[id='{}']:vnfd-connection-point-ref[member-vnf-index-ref='{}']:vnfd-"
+                        "connection-point-ref='{}' references a non existing conection-point:name inside vnfd '{}'"
+                        .format(vld["id"], referenced_vnfd_cp["member-vnf-index-ref"],
+                                referenced_vnfd_cp["vnfd-connection-point-ref"], vnfd["id"]),
+                        http_code=HTTPStatus.UNPROCESSABLE_ENTITY)
 
     def check_conflict_on_edit(self, session, final_content, edit_content, _id, force=False):
         super().check_conflict_on_edit(session, final_content, edit_content, _id, force=force)
 
-        self._check_descriptor_dependencies(session, final_content)
+        self._check_descriptor_dependencies(session, final_content, force)
 
     def check_conflict_on_del(self, session, _id, force=False):
         """
@@ -468,6 +726,80 @@ class NsdTopic(DescriptorTopic):
             raise EngineException("There is some NSR that depends on this NSD", http_code=HTTPStatus.CONFLICT)
 
 
+class NstTopic(DescriptorTopic):
+    topic = "nsts"
+    topic_msg = "nst"
+
+    def __init__(self, db, fs, msg):
+        DescriptorTopic.__init__(self, db, fs, msg)
+
+    @staticmethod
+    def _remove_envelop(indata=None):
+        if not indata:
+            return {}
+        clean_indata = indata
+
+        if clean_indata.get('nst'):
+            if not isinstance(clean_indata['nst'], list) or len(clean_indata['nst']) != 1:
+                raise EngineException("'nst' must be a list only one element")
+            clean_indata = clean_indata['nst'][0]
+        return clean_indata
+
+    def _validate_input_edit(self, indata, force=False):
+        # TODO validate with pyangbind, serialize
+        return indata
+
+    def _validate_input_new(self, indata, force=False):
+        return indata.copy()
+
+    def _check_descriptor_dependencies(self, session, descriptor):
+        """
+        Check that the dependent descriptors exist on a new descriptor or edition
+        :param session: client session information
+        :param descriptor: descriptor to be inserted or edit
+        :return: None or raises exception
+        """
+        if not descriptor.get("netslice-subnet"):
+            return
+        for nsd in descriptor["netslice-subnet"]:
+            nsd_id = nsd["nsd-ref"]
+            filter_q = self._get_project_filter(session, write=False, show_all=True)
+            filter_q["id"] = nsd_id
+            if not self.db.get_list("nsds", filter_q):
+                raise EngineException("Descriptor error at 'netslice-subnet':'nsd-ref'='{}' references a non "
+                                      "existing nsd".format(nsd_id), http_code=HTTPStatus.CONFLICT)
+
+    def check_conflict_on_edit(self, session, final_content, edit_content, _id, force=False):
+        super().check_conflict_on_edit(session, final_content, edit_content, _id, force=force)
+
+        self._check_descriptor_dependencies(session, final_content)
+
+    def check_conflict_on_del(self, session, _id, force=False):
+        """
+        Check that there is not any NSIR that uses this NST. Only NSIRs belonging to this project are considered. Note
+        that NST can be public and be used by other projects.
+        :param session:
+        :param _id: nst internal id
+        :param force: Avoid this checking
+        :return: None or raises EngineException with the conflict
+        """
+        # TODO: Check this method
+        if force:
+            return
+        # Get Network Slice Template from Database
+        _filter = self._get_project_filter(session, write=False, show_all=False)
+        _filter["_id"] = _id
+        nst = self.db.get_one("nsts", _filter)
+        
+        # Search NSIs using NST via nst-ref
+        _filter = self._get_project_filter(session, write=False, show_all=False)
+        _filter["nst-ref"] = nst["id"]
+        nsis_list = self.db.get_list("nsis", _filter)
+        for nsi_item in nsis_list:
+            if nsi_item["_admin"].get("nsiState") != "TERMINATED":
+                raise EngineException("There is some NSIS that depends on this NST", http_code=HTTPStatus.CONFLICT)
+
+
 class PduTopic(BaseTopic):
     topic = "pdus"
     topic_msg = "pdu"
@@ -479,10 +811,10 @@ class PduTopic(BaseTopic):
 
     @staticmethod
     def format_on_new(content, project_id=None, make_public=False):
-        BaseTopic.format_on_new(content, project_id=None, make_public=make_public)
+        BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
         content["_admin"]["onboardingState"] = "CREATED"
-        content["_admin"]["operationalState"] = "DISABLED"
-        content["_admin"]["usageSate"] = "NOT_IN_USE"
+        content["_admin"]["operationalState"] = "ENABLED"
+        content["_admin"]["usageState"] = "NOT_IN_USE"
 
     def check_conflict_on_del(self, session, _id, force=False):
         if force: