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/*
* Copyright (C) 2018 Bell Canada.
*
* 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.
*/
package org.onap.so.heatbridge.helpers;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.commons.collections.CollectionUtils;
import org.onap.aai.domain.yang.Flavor;
import org.onap.aai.domain.yang.Image;
import org.onap.aai.domain.yang.Relationship;
import org.onap.aai.domain.yang.RelationshipData;
import org.onap.aai.domain.yang.RelationshipList;
import org.onap.aai.domain.yang.SriovVf;
import org.onap.aai.domain.yang.Vserver;
import org.onap.so.heatbridge.constants.HeatBridgeConstants;
import org.openstack4j.model.compute.Server;
/**
* This class provides wrapper methods to manage creation of AAI objects and extracting objects from AAI and
* transforming into required objects.
*/
public class AaiHelper {
/**
* Build vserver relationship object to entities: pserver, vf-module, image, flavor
*
* @param cloudOwner AAI cloudOwner value
* @param cloudRegionId AAI cloud-region identifier
* @param genericVnfId AAI generic-vnf identifier
* @param vfModuleId AAI vf-module identifier
* @param server Openstack Server object
*/
public RelationshipList getVserverRelationshipList(final String cloudOwner, final String cloudRegionId,
final String genericVnfId, final String vfModuleId, final Server server) {
RelationshipList relationshipList = new RelationshipList();
List<Relationship> relationships = relationshipList.getRelationship();
// vserver to pserver relationship
Relationship pserverRelationship =
buildRelationship(HeatBridgeConstants.AAI_PSERVER, ImmutableMap.<String, String>builder()
.put(HeatBridgeConstants.AAI_PSERVER_HOSTNAME, server.getHypervisorHostname()).build());
relationships.add(pserverRelationship);
// vserver to vf-module relationship
Relationship vfModuleRelationship = buildRelationship(HeatBridgeConstants.AAI_VF_MODULE,
ImmutableMap.<String, String>builder().put(HeatBridgeConstants.AAI_GENERIC_VNF_ID, genericVnfId)
.put(HeatBridgeConstants.AAI_VF_MODULE_ID, vfModuleId).build());
relationships.add(vfModuleRelationship);
// vserver to image relationship
Relationship imageRel = buildRelationship(HeatBridgeConstants.AAI_IMAGE,
ImmutableMap.<String, String>builder().put(HeatBridgeConstants.AAI_CLOUD_OWNER, cloudOwner)
.put(HeatBridgeConstants.AAI_CLOUD_REGION_ID, cloudRegionId)
.put(HeatBridgeConstants.AAI_IMAGE_ID, server.getImage().getId()).build());
relationships.add(imageRel);
// vserver to flavor relationship
Relationship flavorRel = buildRelationship(HeatBridgeConstants.AAI_FLAVOR,
ImmutableMap.<String, String>builder().put(HeatBridgeConstants.AAI_CLOUD_OWNER, cloudOwner)
.put(HeatBridgeConstants.AAI_CLOUD_REGION_ID, cloudRegionId)
.put(HeatBridgeConstants.AAI_FLAVOR_ID, server.getFlavor().getId()).build());
relationships.add(flavorRel);
return relationshipList;
}
public RelationshipList getLInterfaceRelationshipList(final String pserverName, final String pIfName,
final String pfPciId) {
RelationshipList relationshipList = new RelationshipList();
List<Relationship> relationships = relationshipList.getRelationship();
// sriov-vf to sriov-pf relationship
Relationship sriovPfRelationship = buildRelationship(HeatBridgeConstants.AAI_SRIOV_PF,
ImmutableMap.<String, String>builder().put(HeatBridgeConstants.AAI_PSERVER_HOSTNAME, pserverName)
.put(HeatBridgeConstants.AAI_P_INTERFACE_NAME, pIfName)
.put(HeatBridgeConstants.AAI_SRIOV_PF_PCI_ID, pfPciId).build());
relationships.add(sriovPfRelationship);
return relationshipList;
}
/**
* Transform Openstack Server object to AAI Vserver object
*
* @param serverId Openstack server identifier
* @param server Openstack server object
* @return AAI Vserver object
*/
public Vserver buildVserver(final String serverId, final Server server) {
Vserver vserver = new Vserver();
vserver.setInMaint(false);
vserver.setIsClosedLoopDisabled(false);
vserver.setVserverId(serverId);
vserver.setVserverName(server.getName());
vserver.setVserverName2(server.getName());
vserver.setProvStatus(server.getStatus().value());
server.getLinks().stream().filter(link -> link.getRel().equals(HeatBridgeConstants.OS_RESOURCES_SELF_LINK_KEY))
.findFirst().ifPresent(link -> vserver.setVserverSelflink(link.getHref()));
return vserver;
}
/**
* Transform Openstack Image object to AAI Image object
*
* @param image Openstack Image object
* @return AAI Image object
*/
public Image buildImage(final org.openstack4j.model.compute.Image image) {
Image aaiImage = new Image();
aaiImage.setImageId(image.getId());
aaiImage.setImageName(image.getName());
aaiImage.setImageOsDistro(HeatBridgeConstants.OS_UNKNOWN_KEY);
aaiImage.setImageOsVersion(HeatBridgeConstants.OS_UNKNOWN_KEY);
image.getLinks().stream().filter(link -> link.getRel().equals(HeatBridgeConstants.OS_RESOURCES_SELF_LINK_KEY))
.findFirst().ifPresent(link -> aaiImage.setImageSelflink(link.getHref()));
return aaiImage;
}
/**
* Transform Openstack Flavor object to AAI Flavor object
*
* @param flavor Openstack Flavor object
* @return AAI Flavor object
*/
public Flavor buildFlavor(final org.openstack4j.model.compute.Flavor flavor) {
Flavor aaiFlavor = new Flavor();
aaiFlavor.setFlavorId(flavor.getId());
aaiFlavor.setFlavorName(flavor.getName());
flavor.getLinks().stream().filter(link -> link.getRel().equals(HeatBridgeConstants.OS_RESOURCES_SELF_LINK_KEY))
.findFirst().ifPresent(link -> aaiFlavor.setFlavorSelflink(link.getHref()));
return aaiFlavor;
}
/**
* Extract a list of flavors URI associated with the list of vservers
*
* @param vservers List of vserver AAI objects
* @return a list of related flavor related-links
*/
public List<String> getFlavorsUriFromVserver(final List<Vserver> vservers) {
List<String> flavorUris = new ArrayList<>();
vservers.forEach(vserver -> flavorUris.addAll(
filterRelatedLinksByRelatedToProperty(vserver.getRelationshipList(), HeatBridgeConstants.AAI_FLAVOR)));
return flavorUris;
}
/**
* Extract a list of images URI associated with the list of vservers
*
* @param vservers List of vserver AAI objects
* @return a list of related image related-links
*/
public List<String> getImagesUriFromVserver(final List<Vserver> vservers) {
List<String> imageUris = new ArrayList<>();
vservers.forEach(vserver -> imageUris.addAll(
filterRelatedLinksByRelatedToProperty(vserver.getRelationshipList(), HeatBridgeConstants.AAI_IMAGE)));
return imageUris;
}
/**
* From the list vserver objects build a map of compute hosts's name and the PCI IDs linked to it.
*
* @param vservers List of vserver AAI objects
* @return a map of compute names to the PCI ids associated with the compute
*/
public Map<String, List<String>> getPserverToPciIdMap(final List<Vserver> vservers) {
Map<String, List<String>> pserverToPciIdMap = new HashMap<>();
for (Vserver vserver : vservers) {
if (vserver.getLInterfaces() != null) {
List<String> pciIds = vserver.getLInterfaces().getLInterface().stream()
.filter(lInterface -> lInterface.getSriovVfs() != null
&& CollectionUtils.isNotEmpty(lInterface.getSriovVfs().getSriovVf()))
.flatMap(lInterface -> lInterface.getSriovVfs().getSriovVf().stream()).map(SriovVf::getPciId)
.collect(Collectors.toList());
if (CollectionUtils.isNotEmpty(pciIds)) {
List<String> matchingPservers = extractRelationshipDataValue(vserver.getRelationshipList(),
HeatBridgeConstants.AAI_PSERVER, HeatBridgeConstants.AAI_PSERVER_HOSTNAME);
Preconditions.checkState(matchingPservers != null && matchingPservers.size() == 1,
"Invalid pserver relationships for vserver: " + vserver.getVserverName());
pserverToPciIdMap.put(matchingPservers.get(0), pciIds);
}
}
}
return pserverToPciIdMap;
}
/**
* Extract from relationship-list object all the relationship-value that match the related-to and relationship-key
* fields.
*
* @param relationshipListObj AAI relationship-list object
* @param relatedToProperty related-to value
* @param relationshipKey relationship-key value
* @return relationship-value matching the key requested for the relationship object of type related-to property
*/
private List<String> extractRelationshipDataValue(final RelationshipList relationshipListObj,
final String relatedToProperty, final String relationshipKey) {
if (relationshipListObj != null && relationshipListObj.getRelationship() != null) {
return relationshipListObj.getRelationship().stream()
.filter(relationship -> relationship.getRelatedTo().equals(relatedToProperty))
.map(Relationship::getRelationshipData).flatMap(Collection::stream)
.filter(data -> data.getRelationshipKey() != null
&& relationshipKey.equals(data.getRelationshipKey()))
.map(RelationshipData::getRelationshipValue).collect(Collectors.toList());
}
return new ArrayList<>();
}
/**
* Extract and filter the related-links to all objects that match the type specified by the filter property
*
* @param relationshipListObj AAI object representing relationship object
* @param relatedToProperty Value identifying the type of AAI object for related-to field
* @return a list of related-links filtered by the specified related-to property
*/
private List<String> filterRelatedLinksByRelatedToProperty(final RelationshipList relationshipListObj,
final String relatedToProperty) {
if (relationshipListObj != null && relationshipListObj.getRelationship() != null) {
return relationshipListObj.getRelationship().stream()
.filter(relationship -> relationship.getRelatedTo().equals(relatedToProperty))
.map(Relationship::getRelatedLink).collect(Collectors.toList());
}
return new ArrayList<>();
}
/**
* Build the relationship object
*
* @param relatedTo Related to entity value
* @param relationshipKeyValues Key value pairs of relationship data
* @return AAI Relationship object
*/
private Relationship buildRelationship(final String relatedTo, final Map<String, String> relationshipKeyValues) {
Relationship relationship = new Relationship();
relationship.setRelatedTo(relatedTo);
relationshipKeyValues.keySet().forEach(k -> {
RelationshipData relationshipData = new RelationshipData();
relationshipData.setRelationshipKey(k);
relationshipData.setRelationshipValue(relationshipKeyValues.get(k));
relationship.getRelationshipData().add(relationshipData);
});
return relationship;
}
}
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