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/*
* -
* * ============LICENSE_START=======================================================
* * Copyright (C) 2019 Nordix Foundation.
* * ================================================================================
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* * ============LICENSE_END=========================================================
*
*/
package org.openecomp.core.impl;
import org.apache.commons.collections.MapUtils;
import org.onap.sdc.tosca.datatypes.model.NodeTemplate;
import org.onap.sdc.tosca.datatypes.model.ServiceTemplate;
import org.onap.sdc.tosca.datatypes.model.TopologyTemplate;
import org.openecomp.core.converter.ServiceTemplateReaderService;
import org.openecomp.sdc.tosca.services.DataModelUtil;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;
public class ToscaSolConverterPnf extends AbstractToscaSolConverter {
private static final String PNF_EXT_CP_TYPE = "tosca.nodes.nfv.PnfExtCp";
private static final String EXT_CP_TYPE = "org.openecomp.resource.cp.v2.extCP";
private static final String LAYER_PROTOCOLS = "layer_protocols";
private static final String IP_V4 = "ipv4";
private static final String IP_V6 = "ipv6";
private static final String IP_VERSION = "ip_version";
private static final String ASSIGNMENT_METHOD = "assingment_method";
private static final String DHCP = "dhcp";
/**
* For PNF the node templates are converted ETSI node types to ecomp node types
* All other data i.e. inputs, substitution mappings and outputs are simply dropped at this stage. The equivalent
* ecomp data will be added when the vsp is imported into the catalog.
* @param serviceTemplate
* @param readerService
*/
@Override
public void convertTopologyTemplate(ServiceTemplate serviceTemplate, ServiceTemplateReaderService readerService) {
convertNodeTemplatesToEcompTypes(serviceTemplate, readerService);
addEmptyNodeTemplatesIfNoneDefined(serviceTemplate);
}
/**
* PNF only has nfv.PNF and nfv.PnfExtCp types defined in ETSI SOL001 v2.5.1.
* - The PNF is mapped to the outer Abstract PNF container in ecomp model and hence nfv.PNF is dropped here.
* - nfv.PnfExtCp is mapped to ecomp v2.extCp type.
*
* @param serviceTemplate
* @param readerService
*/
private void convertNodeTemplatesToEcompTypes(ServiceTemplate serviceTemplate,
ServiceTemplateReaderService readerService) {
Map<String, Object> nodeTemplates = readerService.getNodeTemplates();
if (MapUtils.isEmpty(nodeTemplates)) {
return;
}
for (Map.Entry<String, Object> nodeTemplateEntry : nodeTemplates.entrySet()) {
Map<String, Object> inputNodeTemplate = (Map<String, Object>) nodeTemplateEntry.getValue();
if (PNF_EXT_CP_TYPE.equals((String) inputNodeTemplate.get("type"))) {
NodeTemplate nodeTemplate = convertToEcompConnectionPointNodeType(inputNodeTemplate);
DataModelUtil.addNodeTemplate(serviceTemplate, nodeTemplateEntry.getKey(), nodeTemplate);
}
}
addEmptyNodeTemplatesIfNoneDefined(serviceTemplate);
}
/**
* Converts from the ETSI PnfExtCp node type to ecomp v2.extCP node type
* The following properties are mapped
* - layer_protocols is mapped to ip_requirements if it contains the values ipv4 and/or ipv6
* <p>
* All other data e.g. remaining properties, requirements, capabilities are
* not mapped over to ecomp equivalent
*
* @param pnfExtCp
* @return ecomp v2.extCP node type
*/
private NodeTemplate convertToEcompConnectionPointNodeType(Map<String, Object> pnfExtCp) {
NodeTemplate nodeTemplate = new NodeTemplate();
nodeTemplate.setType(EXT_CP_TYPE);
Map<String, Object> properties = (Map<String, Object>) pnfExtCp.get("properties");
for (Map.Entry<String, Object> property : properties.entrySet()) {
final String propertyName = property.getKey();
if (LAYER_PROTOCOLS.equals(propertyName)) {
List<Map<String, Object>> ipRequirements = convertToIpRequirementsProperty((List<String>) property.getValue());
if (isNotEmpty(ipRequirements)) {
Map<String, Object> convertedProperties = new HashMap<>();
convertedProperties.put("ip_requirements", ipRequirements);
nodeTemplate.setProperties(convertedProperties);
}
}
}
return nodeTemplate;
}
private List<Map<String, Object>> convertToIpRequirementsProperty(List<String> layerProtocols) {
return layerProtocols.stream()
.filter(layerProtocol -> IP_V4.equals(layerProtocol) || IP_V6.equals(layerProtocol))
.map(this::createIpPropertyElement)
.collect(Collectors.toList());
}
private Map<String, Object> createIpPropertyElement(String ipVersion) {
final int version = ipVersion.equals(IP_V4) ? 4 : 6;
Map<String, Object> result = new HashMap<>();
result.put(IP_VERSION, version);
result.put(ASSIGNMENT_METHOD, DHCP);
return result;
}
private boolean isNotEmpty(List<?> list) {
return !list.isEmpty();
}
private void addEmptyNodeTemplatesIfNoneDefined(ServiceTemplate serviceTemplate) {
TopologyTemplate topologyTemplate = serviceTemplate.getTopology_template();
if (Objects.isNull(topologyTemplate)) {
topologyTemplate = new TopologyTemplate();
serviceTemplate.setTopology_template(topologyTemplate);
}
if (topologyTemplate.getNode_templates() == null) {
topologyTemplate.setNode_templates(new HashMap<>());
}
}
}
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