diff options
Diffstat (limited to 'genericparser/pub/utils/toscaparsers/nsdmodel.py')
| -rw-r--r-- | genericparser/pub/utils/toscaparsers/nsdmodel.py | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/genericparser/pub/utils/toscaparsers/nsdmodel.py b/genericparser/pub/utils/toscaparsers/nsdmodel.py new file mode 100644 index 0000000..fe522a7 --- /dev/null +++ b/genericparser/pub/utils/toscaparsers/nsdmodel.py @@ -0,0 +1,220 @@ +# Copyright 2017 ZTE Corporation. +# +# 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 functools +import logging +from genericparser.pub.utils.toscaparsers.basemodel import BaseInfoModel +from genericparser.pub.utils.toscaparsers.const import SDC_SERVICE_METADATA_SECTIONS +from genericparser.pub.utils.toscaparsers.servicemodel import SdcServiceModel + +logger = logging.getLogger(__name__) + +SECTIONS = (NS_TYPE, NS_VNF_TYPE, NS_VL_TYPE, NS_PNF_TYPE, NS_NFP_TYPE, NS_VNFFG_TYPE) = \ + ('tosca.nodes.nfv.NS', + 'tosca.nodes.nfv.VNF', + 'tosca.nodes.nfv.NsVirtualLink', + 'tosca.nodes.nfv.PNF', + 'tosca.nodes.nfv.NFP', + 'tosca.nodes.nfv.VNFFG') + +NFV_NS_RELATIONSHIPS = [["tosca.relationships.nfv.VirtualLinksTo", "tosca.relationships.DependsOn"], []] + + +class NsdInfoModel(BaseInfoModel): + def __init__(self, path, params): + super(NsdInfoModel, self).__init__(path, params) + + def parseModel(self, tosca): + metadata = self.buildMetadata(tosca) + self.model = {} + if self._is_etsi(metadata): + self.model = EtsiNsdInfoModel(tosca) + elif self._is_ecomp(metadata): + self.model = SdcServiceModel(tosca) + + def _is_etsi(self, metadata): + NS_METADATA_MUST = ["nsd_invariant_id", "nsd_name", "nsd_file_structure_version", "nsd_designer", "nsd_release_date_time"] + return True if len([1 for key in NS_METADATA_MUST if key in metadata]) == len(NS_METADATA_MUST) else False + + def _is_ecomp(self, metadata): + return True if len([1 for key in SDC_SERVICE_METADATA_SECTIONS if key in metadata]) == len(SDC_SERVICE_METADATA_SECTIONS) else False + + +class EtsiNsdInfoModel(BaseInfoModel): + + def __init__(self, tosca): + super(EtsiNsdInfoModel, self).__init__(tosca=tosca) + + def parseModel(self, tosca): + self.metadata = self.buildMetadata(tosca) + self.ns = self._build_ns(tosca) + self.inputs = self.buildInputs(tosca) + nodeTemplates = map(functools.partial(self.buildNode, tosca=tosca), tosca.nodetemplates) + types = tosca.topology_template.custom_defs + self.basepath = self.get_base_path(tosca) + self.vnfs = self._get_all_vnf(nodeTemplates, types) + self.pnfs = self._get_all_pnf(nodeTemplates, types) + self.vls = self._get_all_vl(nodeTemplates, types) + self.fps = self._get_all_fp(nodeTemplates, types) + self.vnffgs = self._get_all_vnffg(tosca.topology_template.groups, types) + self.ns_exposed = self._get_all_endpoint_exposed(tosca.topology_template) + self.nested_ns = self._get_all_nested_ns(nodeTemplates, types) + self.graph = self.get_deploy_graph(tosca, NFV_NS_RELATIONSHIPS) + + def _get_all_vnf(self, nodeTemplates, node_types): + vnfs = [] + for node in nodeTemplates: + if self.isNodeTypeX(node, node_types, NS_VNF_TYPE): + vnf = {} + vnf['vnf_id'] = node['name'] + vnf['description'] = node['description'] + vnf['properties'] = node['properties'] + if not vnf['properties'].get('id', None): + vnf['properties']['id'] = vnf['properties'].get('descriptor_id', None) + vnf['dependencies'] = self._get_networks(node, node_types) + vnf['networks'] = self._get_networks(node, node_types) + vnfs.append(vnf) + return vnfs + + def _get_all_pnf(self, nodeTemplates, node_types): + pnfs = [] + for node in nodeTemplates: + if self.isNodeTypeX(node, node_types, NS_PNF_TYPE): + pnf = {} + pnf['pnf_id'] = node['name'] + pnf['description'] = node['description'] + pnf['properties'] = node['properties'] + pnf['networks'] = self._get_networks(node, node_types) + pnfs.append(pnf) + return pnfs + + def _get_all_vl(self, nodeTemplates, node_types): + vls = [] + for node in nodeTemplates: + if self.isNodeTypeX(node, node_types, NS_VL_TYPE): + vl = dict() + vl['vl_id'] = node['name'] + vl['description'] = node['description'] + vl['properties'] = node['properties'] + vls.append(vl) + return vls + + def _get_all_fp(self, nodeTemplates, node_types): + fps = [] + for node in nodeTemplates: + if self.isNodeTypeX(node, node_types, NS_NFP_TYPE): + fp = {} + fp['fp_id'] = node['name'] + fp['description'] = node['description'] + fp['properties'] = node['properties'] + fp['forwarder_list'] = self._getForwarderList(node, nodeTemplates, node_types) + fps.append(fp) + return fps + + def _getForwarderList(self, node, node_templates, node_types): + forwarderList = [] + if 'requirements' in node: + for item in node['requirements']: + for key, value in item.items(): + if key == 'forwarder': + tmpnode = self.get_node_by_req(node_templates, value) + type = 'pnf' if self.isNodeTypeX(tmpnode, node_types, NS_PNF_TYPE) else 'vnf' + req_node_name = self.get_requirement_node_name(value) + if isinstance(value, dict) and 'capability' in value: + forwarderList.append( + {"type": type, "node_name": req_node_name, "capability": value['capability']}) + else: + forwarderList.append({"type": type, "node_name": req_node_name, "capability": ""}) + return forwarderList + + def _get_all_vnffg(self, groups, group_types): + vnffgs = [] + for group in groups: + if self.isGroupTypeX(group, group_types, NS_VNFFG_TYPE): + vnffg = {} + vnffg['vnffg_id'] = group.name + vnffg['description'] = group.description + if 'properties' in group.tpl: + vnffg['properties'] = group.tpl['properties'] + vnffg['members'] = group.members + vnffgs.append(vnffg) + return vnffgs + + def _get_all_endpoint_exposed(self, topo_tpl): + if 'substitution_mappings' in topo_tpl.tpl: + external_cps = self._get_external_cps(topo_tpl.tpl['substitution_mappings']) + forward_cps = self._get_forward_cps(topo_tpl.tpl['substitution_mappings']) + return {"external_cps": external_cps, "forward_cps": forward_cps} + return {} + + def _get_external_cps(self, subs_mappings): + external_cps = [] + if 'requirements' in subs_mappings: + for key, value in subs_mappings['requirements'].items(): + if isinstance(value, list) and len(value) > 0: + external_cps.append({"key_name": key, "cpd_id": value[0]}) + else: + external_cps.append({"key_name": key, "cpd_id": value}) + return external_cps + + def _get_forward_cps(self, subs_mappings): + forward_cps = [] + if 'capabilities' in subs_mappings: + for key, value in subs_mappings['capabilities'].items(): + if isinstance(value, list) and len(value) > 0: + forward_cps.append({"key_name": key, "cpd_id": value[0]}) + else: + forward_cps.append({"key_name": key, "cpd_id": value}) + return forward_cps + + def _get_all_nested_ns(self, nodes, node_types): + nss = [] + for node in nodes: + if self.isNodeTypeX(node, node_types, NS_TYPE): + ns = {} + ns['ns_id'] = node['name'] + ns['description'] = node['description'] + ns['properties'] = node['properties'] + ns['networks'] = self._get_networks(node, node_types) + nss.append(ns) + return nss + + def _get_networks(self, node, node_types): + rets = [] + if 'requirements' in node and (self.isNodeTypeX(node, node_types, NS_TYPE) or self.isNodeTypeX(node, node_types, NS_VNF_TYPE)): + for item in node['requirements']: + for key, value in item.items(): + rets.append({"key_name": key, "vl_id": self.get_requirement_node_name(value)}) + return rets + + def _build_ns(self, tosca): + ns = self.get_substitution_mappings(tosca) + properties = ns.get("properties", {}) + metadata = ns.get("metadata", {}) + if properties.get("descriptor_id", "") == "": + descriptor_id = metadata.get("nsd_id", "") + properties["descriptor_id"] = descriptor_id + if properties.get("verison", "") == "": + version = metadata.get("nsd_file_structure_version", "") + properties["verison"] = version + if properties.get("designer", "") == "": + author = metadata.get("nsd_designer", "") + properties["designer"] = author + if properties.get("name", "") == "": + template_name = metadata.get("nsd_name", "") + properties["name"] = template_name + if properties.get("invariant_id", "") == "": + nsd_invariant_id = metadata.get("nsd_invariant_id", "") + properties["invariant_id"] = nsd_invariant_id + return ns |