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.concepts.StateChangeResult;
  26 import org.onap.policy.clamp.models.acm.messages.rest.instantiation.DeployOrder;
  27 import org.onap.policy.clamp.models.acm.messages.rest.instantiation.LockOrder;
  28 import org.onap.policy.clamp.models.acm.utils.StateDefinition;
  29 import org.springframework.stereotype.Component;
  30
  31 @Component
  32 public class AcInstanceStateResolver {
  33     private final StateDefinition<String> graph;
  34
  35     private static final String DEPLOYED = DeployState.DEPLOYED.name();
  36     private static final String DEPLOYING = DeployState.DEPLOYING.name();
  37     private static final String UNDEPLOYED = DeployState.UNDEPLOYED.name();
  38     private static final String UNDEPLOYING = DeployState.UNDEPLOYING.name();
  39     private static final String UPDATING = DeployState.UPDATING.name();
  40     private static final String DELETING = DeployState.DELETING.name();
  41
  42     private static final String LOCKED = LockState.LOCKED.name();
  43     private static final String LOCKING = LockState.LOCKING.name();
  44     private static final String UNLOCKED = LockState.UNLOCKED.name();
  45     private static final String UNLOCKING = LockState.UNLOCKING.name();
  46     private static final String STATE_LOCKED_NONE = LockState.NONE.name();
  47
  48     private static final String DEPLOY_NONE = DeployOrder.NONE.name();
  49     private static final String LOCK_NONE = LockOrder.NONE.name();
  50
  51     private static final String NO_ERROR = StateChangeResult.NO_ERROR.name();
  52     private static final String FAILED = StateChangeResult.FAILED.name();
  53
  54     // list of results
  55     public static final String DEPLOY = DeployOrder.DEPLOY.name();
  56     public static final String UNDEPLOY = DeployOrder.UNDEPLOY.name();
  57     public static final String DELETE = DeployOrder.DELETE.name();
  58     public static final String LOCK = LockOrder.LOCK.name();
  59     public static final String UNLOCK = LockOrder.UNLOCK.name();
  60     public static final String NONE = "NONE";
  61
  62     /**
  63      * Construct.
  64      */
  65     public AcInstanceStateResolver() {
  66         this.graph = new StateDefinition<>(5, NONE);
  67
  68         // no error
  69         this.graph.put(new String[] {DEPLOY, LOCK_NONE, UNDEPLOYED, STATE_LOCKED_NONE, NO_ERROR}, DEPLOY);
  70         this.graph.put(new String[] {UNDEPLOY, LOCK_NONE, DEPLOYED, LOCKED, NO_ERROR}, UNDEPLOY);
  71         this.graph.put(new String[] {DELETE, LOCK_NONE, UNDEPLOYED, LOCK_NONE, NO_ERROR}, DELETE);
  72         this.graph.put(new String[] {DEPLOY_NONE, UNLOCK, DEPLOYED, LOCKED, NO_ERROR}, UNLOCK);
  73         this.graph.put(new String[] {DEPLOY_NONE, LOCK, DEPLOYED, UNLOCKED, NO_ERROR}, LOCK);
  74
  75         // failed
  76         this.graph.put(new String[] {DEPLOY, LOCK_NONE, UNDEPLOYING, STATE_LOCKED_NONE, FAILED}, DEPLOY);
  77         this.graph.put(new String[] {UNDEPLOY, LOCK_NONE, UNDEPLOYING, STATE_LOCKED_NONE, FAILED}, UNDEPLOY);
  78         this.graph.put(new String[] {UNDEPLOY, LOCK_NONE, UPDATING, STATE_LOCKED_NONE, FAILED}, UNDEPLOY);
  79
  80         this.graph.put(new String[] {DEPLOY, LOCK_NONE, DEPLOYING, STATE_LOCKED_NONE, FAILED}, DEPLOY);
  81         this.graph.put(new String[] {UNDEPLOY, LOCK_NONE, DEPLOYING, STATE_LOCKED_NONE, FAILED}, UNDEPLOY);
  82
  83         this.graph.put(new String[] {DELETE, LOCK_NONE, DELETING, LOCK_NONE, FAILED}, DELETE);
  84
  85         this.graph.put(new String[] {DEPLOY_NONE, UNLOCK, DEPLOYED, LOCKING, FAILED}, UNLOCK);
  86         this.graph.put(new String[] {DEPLOY_NONE, LOCK, DEPLOYED, LOCKING, FAILED}, LOCK);
  87
  88         this.graph.put(new String[] {DEPLOY_NONE, LOCK, DEPLOYED, UNLOCKING, FAILED}, LOCK);
  89         this.graph.put(new String[] {DEPLOY_NONE, UNLOCK, DEPLOYED, UNLOCKING, FAILED}, UNLOCK);
  90     }
  91
  92     /**
  93      * Check if Deploy Order and Lock Order are consistent with current DeployState and LockState.
  94      *
  95      * @param acDeployOrder the Deploy Ordered
  96      * @param acLockOrder the Lock Ordered
  97      * @param acDeployState then current Deploy State
  98      * @param acLockState the current Lock State
  99      * @param acStateChangeResult the current Result of the State Change
 100      * @return the order (DEPLOY/UNDEPLOY/LOCK/UNLOCK) to send to participant or NONE if order is not consistent
 101      */
 102     public String resolve(DeployOrder acDeployOrder, LockOrder acLockOrder, DeployState acDeployState,
 103             LockState acLockState, StateChangeResult acStateChangeResult) {
 104         var deployOrder = acDeployOrder != null ? acDeployOrder : DeployOrder.NONE;
 105         var lockOrder = acLockOrder != null ? acLockOrder : LockOrder.NONE;
 106         var stateChangeResult = acStateChangeResult != null ? acStateChangeResult : StateChangeResult.NO_ERROR;
 107
 108         var deployState = acDeployState != null ? acDeployState : DeployState.UNDEPLOYED;
 109         var lockState = acLockState != null ? acLockState : LockState.NONE;
 110         return this.graph.get(new String[] {deployOrder.name(), lockOrder.name(), deployState.name(), lockState.name(),
 111                 stateChangeResult.name()});
 112     }
 113 }