nokiav2/driver/src/main/java/org/onap/vfc/nfvo/driver/vnfm/svnfm/nokia/onap/direct/notification/GenericVnfManager.java

   1 /*
   2  * Copyright 2016-2017, Nokia Corporation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.direct.notification;
  17
  18 import com.nokia.cbam.lcm.v32.model.VnfInfo;
  19 import java.util.ArrayList;
  20 import java.util.NoSuchElementException;
  21 import java.util.Optional;
  22 import org.onap.aai.model.GenericVnf;
  23 import org.onap.aai.model.Relationship;
  24 import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.direct.AAIRestApiProvider;
  25 import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.CbamRestApiProvider;
  26 import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.CbamRestApiProviderForSo;
  27 import org.slf4j.Logger;
  28 import org.springframework.beans.factory.annotation.Autowired;
  29 import org.springframework.stereotype.Component;
  30
  31 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.core.SelfRegistrationManager.SERVICE_NAME;
  32 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.buildFatalFailure;
  33 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.SystemFunctions.systemFunctions;
  34
  35 /**
  36  * Responsible for managing the {@link GenericVnf} in AAI
  37  */
  38 @Component
  39 public class GenericVnfManager extends AbstractManager {
  40     private static final long MAX_MS_TO_WAIT_FOR_VNF_TO_APPEAR = 30 * 1000L;
  41     private static Logger logger = org.slf4j.LoggerFactory.getLogger(GenericVnfManager.class);
  42
  43     @Autowired
  44     GenericVnfManager(AAIRestApiProvider aaiRestApiProvider, CbamRestApiProviderForSo cbamRestApiProvider) {
  45         super(aaiRestApiProvider, cbamRestApiProvider);
  46     }
  47
  48     static Relationship linkTo(String vnfId) {
  49         Relationship relationship = new Relationship();
  50         relationship.setRelatedTo("generic-vnf");
  51         relationship.setRelationshipData(new ArrayList<>());
  52         relationship.getRelationshipData().add(buildRelationshipData("generic-vnf.vnf-id", vnfId));
  53         return relationship;
  54     }
  55
  56     private static Relationship linkToNs(String nsId) {
  57         Relationship relationship = new Relationship();
  58         relationship.setRelatedTo("service-instance");
  59         relationship.setRelationshipData(new ArrayList<>());
  60         relationship.getRelationshipData().add(buildRelationshipData("service-instance.service-instance-id", nsId));
  61         return relationship;
  62     }
  63
  64     @Override
  65     protected Logger getLogger() {
  66         return logger;
  67     }
  68
  69     public void createOrUpdate(String vnfId, boolean inMaintenance, String vnfmId, Optional<String> nsId) {
  70         try {
  71             GenericVnf vnf = waitForVnfToAppearInAai(vnfId);
  72             updateFields(vnf, vnfId, inMaintenance, vnfmId, nsId);
  73         } catch (NoSuchElementException e) {
  74             try {
  75                 logger.warn("The VNF with " + vnfId + " identifier did not appear in time", e);
  76                 updateFields(new GenericVnf(), vnfId, inMaintenance, vnfmId, nsId);
  77             } catch (Exception e2) {
  78                 logger.warn("The VNF with " + vnfId + " identifier has been created since after the maximal wait for VNF to appear timeout", e2);
  79                 //the VNF might have been created since the last poll
  80                 updateFields(getExistingVnf(vnfId), vnfId, inMaintenance, vnfmId, nsId);
  81             }
  82         }
  83     }
  84
  85     private void updateFields(GenericVnf vnf, String vnfId, boolean inMaintenance, String vnfmId, Optional<String> nsId) {
  86         try {
  87             VnfInfo vnfInfo = cbamRestApiProvider.getCbamLcmApi(vnfmId).vnfsVnfInstanceIdGet(vnfId, CbamRestApiProvider.NOKIA_LCM_API_VERSION).blockingFirst();
  88             vnf.setVnfName(vnfInfo.getName());
  89         } catch (RuntimeException e) {
  90             throw buildFatalFailure(logger, "Unable to query VNF with " + vnfId + " identifier from CBAM", e);
  91         }
  92         vnf.setVnfId(vnfId);
  93         vnf.setInMaint(inMaintenance);
  94         vnf.setNfType(SERVICE_NAME);
  95         //FIXME whould be good to know if this parameter is relevant or not? (mandatory)
  96         vnf.setVnfType("NokiaVNF");
  97         vnf.setIsClosedLoopDisabled(inMaintenance);
  98         if (vnf.getRelationshipList() == null) {
  99             vnf.setRelationshipList(new ArrayList<>());
 100         }
 101         if (nsId.isPresent()) {
 102             addSingletonRelation(vnf.getRelationshipList(), linkToNs(nsId.get()));
 103         }
 104         else{
 105             logger.warn("Not linking VNF with {} identifier to any NS", vnfId);
 106         }
 107         aaiRestApiProvider.getNetworkApi().createOrUpdateNetworkGenericVnfsGenericVnf(vnf.getVnfId(), vnf).blockingFirst();
 108     }
 109
 110     private GenericVnf waitForVnfToAppearInAai(String vnfId) {
 111         long timeoutInMs = systemFunctions().currentTimeMillis() + MAX_MS_TO_WAIT_FOR_VNF_TO_APPEAR;
 112         while (timeoutInMs - systemFunctions().currentTimeMillis() > 0) {
 113             try {
 114                 return getExistingVnf(vnfId);
 115             } catch (NoSuchElementException e) {
 116                 logger.debug("Unable to get VNF with " + vnfId + " identifier", e);
 117             }
 118             systemFunctions().sleep(3 * 1000L);
 119         }
 120         throw new NoSuchElementException();
 121     }
 122
 123     private GenericVnf getExistingVnf(String vnfId) {
 124         return aaiRestApiProvider.getNetworkApi().getNetworkGenericVnfsGenericVnf(vnfId, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null).blockingFirst();
 125     }
 126 }