gerrit.onap Code Review - policy/clamp.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2023 Nordix Foundation.
   4  * ================================================================================
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  * SPDX-License-Identifier: Apache-2.0
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.clamp.models.acm.persistence.provider;
  22
  23 import org.onap.policy.clamp.models.acm.concepts.DeployState;
  24 import org.onap.policy.clamp.models.acm.concepts.LockState;
  25 import org.onap.policy.clamp.models.acm.messages.rest.instantiation.DeployOrder;
  26 import org.onap.policy.clamp.models.acm.messages.rest.instantiation.LockOrder;
  27 import org.onap.policy.clamp.models.acm.utils.StateDefinition;
  28 import org.springframework.stereotype.Component;
  29
  30 @Component
  31 public class AcInstanceStateResolver {
  32     private final StateDefinition<String> graph;
  33
  34     private static final String DEPLOYED = DeployState.DEPLOYED.name();
  35     private static final String UNDEPLOYED = DeployState.UNDEPLOYED.name();
  36
  37     private static final String LOCKED = LockState.LOCKED.name();
  38     private static final String UNLOCKED = LockState.UNLOCKED.name();
  39     private static final String STATE_LOCKED_NONE = LockState.NONE.name();
  40
  41     private static final String DEPLOY_NONE = DeployOrder.NONE.name();
  42     private static final String LOCK_NONE = LockOrder.NONE.name();
  43
  44     // list of results
  45     public static final String DEPLOY = DeployOrder.DEPLOY.name();
  46     public static final String UNDEPLOY = DeployOrder.UNDEPLOY.name();
  47     public static final String DELETE = DeployOrder.DELETE.name();
  48     public static final String LOCK = LockOrder.LOCK.name();
  49     public static final String UNLOCK = LockOrder.UNLOCK.name();
  50     public static final String NONE = "NONE";
  51
  52     /**
  53      * Construct.
  54      */
  55     public AcInstanceStateResolver() {
  56         this.graph = new StateDefinition<>(4, NONE);
  57
  58         this.graph.put(new String[] {DEPLOY, LOCK_NONE, UNDEPLOYED, STATE_LOCKED_NONE}, DEPLOY);
  59         this.graph.put(new String[] {UNDEPLOY, LOCK_NONE, DEPLOYED, LOCKED}, UNDEPLOY);
  60         this.graph.put(new String[] {DELETE, LOCK_NONE, UNDEPLOYED, LOCK_NONE}, DELETE);
  61         this.graph.put(new String[] {DEPLOY_NONE, UNLOCK, DEPLOYED, LOCKED}, UNLOCK);
  62         this.graph.put(new String[] {DEPLOY_NONE, LOCK, DEPLOYED, UNLOCKED}, LOCK);
  63     }
  64
  65     /**
  66      * Check if Deploy Order and Lock Order are consistent with current DeployState and LockState.
  67      *
  68      * @param acDeployOrder the Deploy Ordered
  69      * @param acLockOrder the Lock Ordered
  70      * @param acDeployState then current Deploy State
  71      * @param acLockState the  current Lock State
  72      * @return the order (DEPLOY/UNDEPLOY/LOCK/UNLOCK) to send to participant or NONE if order is not consistent
  73      */
  74     public String resolve(DeployOrder acDeployOrder, LockOrder acLockOrder, DeployState acDeployState,
  75             LockState acLockState) {
  76         var deployOrder = acDeployOrder != null ? acDeployOrder : DeployOrder.NONE;
  77         var lockOrder = acLockOrder != null ? acLockOrder : LockOrder.NONE;
  78
  79         var deployState = acDeployState != null ? acDeployState : DeployState.UNDEPLOYED;
  80         var lockState = acLockState != null ? acLockState : LockState.NONE;
  81         return this.graph
  82                 .get(new String[] {deployOrder.name(), lockOrder.name(), deployState.name(), lockState.name()});
  83     }
  84 }