rapp-manager-application/src/main/java/com/oransc/rappmanager/service/RappService.java

   1 /*-
   2  * ============LICENSE_START======================================================================
   3  * Copyright (C) 2023 Nordix Foundation. All rights reserved.
   4  * Copyright (C) 2023-2024 OpenInfra Foundation Europe. All rights reserved.
   5  * ===============================================================================================
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  * ============LICENSE_END========================================================================
  18  */
  19
  20 package com.oransc.rappmanager.service;
  21
  22 import com.oransc.rappmanager.acm.service.AcmDeployer;
  23 import com.oransc.rappmanager.models.RappDeployer;
  24 import com.oransc.rappmanager.models.cache.RappCacheService;
  25 import com.oransc.rappmanager.models.exception.RappHandlerException;
  26 import com.oransc.rappmanager.models.rapp.Rapp;
  27 import com.oransc.rappmanager.models.rapp.RappEvent;
  28 import com.oransc.rappmanager.models.rapp.RappState;
  29 import com.oransc.rappmanager.models.rappinstance.RappInstance;
  30 import com.oransc.rappmanager.models.rappinstance.RappInstanceState;
  31 import com.oransc.rappmanager.models.statemachine.RappInstanceStateMachine;
  32 import java.util.List;
  33 import java.util.UUID;
  34 import lombok.RequiredArgsConstructor;
  35 import org.springframework.http.HttpStatus;
  36 import org.springframework.http.ResponseEntity;
  37 import org.springframework.stereotype.Service;
  38
  39 @Service
  40 @RequiredArgsConstructor
  41 public class RappService {
  42
  43     private final AcmDeployer acmDeployer;
  44     private final List<RappDeployer> rappDeployers;
  45     private final RappInstanceStateMachine rappInstanceStateMachine;
  46     private final RappCacheService rappCacheService;
  47     private static final String STATE_TRANSITION_NOT_PERMITTED = "State transition from %s to %s is not permitted.";
  48
  49     public ResponseEntity<String> primeRapp(Rapp rapp) {
  50         if (rapp.getState().equals(RappState.COMMISSIONED)) {
  51             rapp.setState(RappState.PRIMING);
  52             rapp.setReason(null);
  53             if (rappDeployers.parallelStream().allMatch(rappDeployer -> rappDeployer.primeRapp(rapp))) {
  54                 rapp.setState(RappState.PRIMED);
  55                 return ResponseEntity.ok().build();
  56             }
  57             rapp.setState(RappState.COMMISSIONED);
  58             return ResponseEntity.status(HttpStatus.BAD_GATEWAY).build();
  59         }
  60         throw new RappHandlerException(HttpStatus.BAD_REQUEST,
  61                 String.format(STATE_TRANSITION_NOT_PERMITTED, rapp.getState().name(), RappState.PRIMED.name()));
  62
  63     }
  64
  65     public ResponseEntity<String> deprimeRapp(Rapp rapp) {
  66         if (rapp.getState().equals(RappState.PRIMED) && rapp.getRappInstances().isEmpty()) {
  67             rapp.setState(RappState.DEPRIMING);
  68             rapp.setReason(null);
  69             if (rappDeployers.parallelStream().allMatch(rappDeployer -> rappDeployer.deprimeRapp(rapp))) {
  70                 rapp.setState(RappState.COMMISSIONED);
  71                 return ResponseEntity.ok().build();
  72             }
  73             rapp.setState(RappState.PRIMED);
  74             return ResponseEntity.status(HttpStatus.BAD_GATEWAY).build();
  75         }
  76         if (!rapp.getRappInstances().isEmpty()) {
  77             throw new RappHandlerException(HttpStatus.BAD_REQUEST,
  78                     "Unable to deprime as there are active rapp instances.");
  79         } else {
  80             throw new RappHandlerException(HttpStatus.BAD_REQUEST,
  81                     String.format(STATE_TRANSITION_NOT_PERMITTED, RappState.COMMISSIONED.name(),
  82                             rapp.getState().name()));
  83         }
  84     }
  85
  86     public ResponseEntity<String> deleteRapp(Rapp rApp) {
  87         if (rApp.getRappInstances().isEmpty() && rApp.getState().equals(RappState.COMMISSIONED)) {
  88             rappCacheService.deleteRapp(rApp);
  89             return ResponseEntity.ok().build();
  90         }
  91         if (!rApp.getRappInstances().isEmpty()) {
  92             throw new RappHandlerException(HttpStatus.BAD_REQUEST,
  93                     String.format("Unable to delete %s as there are active rApp instances.", rApp.getName()));
  94         } else {
  95             throw new RappHandlerException(HttpStatus.BAD_REQUEST,
  96                     String.format("Unable to delete %s as the rApp is not in COMMISSIONED state.", rApp.getName()));
  97         }
  98
  99     }
 100
 101     public ResponseEntity<String> deployRappInstance(Rapp rapp, RappInstance rappInstance) {
 102         if (rappInstance.getState().equals(RappInstanceState.UNDEPLOYED)) {
 103             rappInstance.setReason(null);
 104             rappInstanceStateMachine.sendRappInstanceEvent(rappInstance, RappEvent.DEPLOYING);
 105             if (rappDeployers.parallelStream()
 106                         .allMatch(rappDeployer -> rappDeployer.deployRappInstance(rapp, rappInstance))) {
 107                 return ResponseEntity.accepted().build();
 108             }
 109             return ResponseEntity.status(HttpStatus.BAD_GATEWAY).build();
 110         }
 111         throw new RappHandlerException(HttpStatus.BAD_REQUEST,
 112                 String.format("Unable to deploy rApp instance %s as it is not in UNDEPLOYED state",
 113                         rappInstance.getRappInstanceId()));
 114
 115     }
 116
 117     public ResponseEntity<String> undeployRappInstance(Rapp rapp, RappInstance rappInstance) {
 118         if (rappInstance.getState().equals(RappInstanceState.DEPLOYED)) {
 119             rappInstance.setReason(null);
 120             rappInstanceStateMachine.sendRappInstanceEvent(rappInstance, RappEvent.UNDEPLOYING);
 121             if (rappDeployers.parallelStream()
 122                         .allMatch(rappDeployer -> rappDeployer.undeployRappInstance(rapp, rappInstance))) {
 123                 return ResponseEntity.accepted().build();
 124             }
 125             return ResponseEntity.status(HttpStatus.BAD_GATEWAY).build();
 126         }
 127         throw new RappHandlerException(HttpStatus.BAD_REQUEST,
 128                 String.format("Unable to undeploy rApp instance %s as it is not in DEPLOYED state",
 129                         rappInstance.getRappInstanceId()));
 130     }
 131
 132     public ResponseEntity<String> deleteRappInstance(Rapp rApp, UUID rappInstanceId) {
 133         if (rApp.getRappInstances().get(rappInstanceId).getState().equals(RappInstanceState.UNDEPLOYED)) {
 134             rappInstanceStateMachine.deleteRappInstance(rApp.getRappInstances().get(rappInstanceId));
 135             rApp.getRappInstances().remove(rappInstanceId);
 136             return ResponseEntity.noContent().build();
 137         }
 138         throw new RappHandlerException(HttpStatus.BAD_REQUEST,
 139                 String.format("Unable to delete rApp instance %s as it is not in UNDEPLOYED state", rappInstanceId));
 140     }
 141
 142     public void updateRappInstanceState(Rapp rapp, RappInstance rappInstance) {
 143         acmDeployer.syncRappInstanceStatus(rapp.getCompositionId(), rappInstance);
 144     }
 145 }