appc-lifecycle-management/state-machine-lib/src/main/java/org/openecomp/appc/statemachine/impl/readers/AppcOamMetaDataReader.java

   1 /*-\r
   2  * ============LICENSE_START=======================================================
   3  * ONAP : APPC
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Copyright (C) 2017 Amdocs\r
   8  * =============================================================================\r
   9  * Licensed under the Apache License, Version 2.0 (the "License");\r
  10  * you may not use this file except in compliance with the License.\r
  11  * You may obtain a copy of the License at\r
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0\r
  14  *
  15  * Unless required by applicable law or agreed to in writing, software\r
  16  * distributed under the License is distributed on an "AS IS" BASIS,\r
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  18  * See the License for the specific language governing permissions and\r
  19  * limitations under the License.\r
  20  *
  21  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  22  * ============LICENSE_END=========================================================\r
  23  */\r
  24 \r
  25 package org.openecomp.appc.statemachine.impl.readers;\r
  26 \r
  27 import org.openecomp.appc.statemachine.StateMetaDataReader;\r
  28 import org.openecomp.appc.statemachine.objects.Event;\r
  29 import org.openecomp.appc.statemachine.objects.State;\r
  30 import org.openecomp.appc.statemachine.objects.StateMachineMetadata;\r
  31 \r
  32 public class AppcOamMetaDataReader implements StateMetaDataReader {\r
  33 \r
  34     public enum AppcOperation {\r
  35         MaintenanceMode,\r
  36         Restart,\r
  37         Start,\r
  38         Stop\r
  39     }\r
  40 \r
  41     @Override\r
  42     public StateMachineMetadata readMetadata() {\r
  43         State NOT_INSTANTIATED = new State(AppcOamStates.NotInstantiated.toString());\r
  44         State INSTANTIATED = new State(AppcOamStates.Instantiated.toString());\r
  45         State RESTARTING = new State(AppcOamStates.Restarting.toString());\r
  46         State STARTING = new State(AppcOamStates.Starting.toString());\r
  47         State STARTED = new State(AppcOamStates.Started.toString());\r
  48         State ENTERING_MAINTENANCE_MODE = new State(AppcOamStates.EnteringMaintenanceMode.toString());\r
  49         State MAINTENANCE_MODE = new State(AppcOamStates.MaintenanceMode.toString());\r
  50         State ERROR = new State(AppcOamStates.Error.toString());\r
  51         State UNKNOWN = new State(AppcOamStates.Unknown.toString());\r
  52         State STOPPING = new State(AppcOamStates.Stopping.toString());\r
  53         State STOPPED = new State(AppcOamStates.Stopped.toString());\r
  54 \r
  55         Event START = new Event(AppcOperation.Start.toString());\r
  56         Event STOP = new Event(AppcOperation.Stop.toString());\r
  57         Event MAINTENANCE_MODE_EVENT = new Event(AppcOperation.MaintenanceMode.toString());\r
  58         Event RESTART = new Event(AppcOperation.Restart.toString());\r
  59 \r
  60         StateMachineMetadata.StateMachineMetadataBuilder builder = new StateMachineMetadata\r
  61                 .StateMachineMetadataBuilder();\r
  62 \r
  63         builder = builder.addState(NOT_INSTANTIATED);\r
  64         builder = builder.addState(INSTANTIATED);\r
  65         builder = builder.addState(STARTING);\r
  66         builder = builder.addState(STARTED);\r
  67         builder = builder.addState(ERROR);\r
  68         builder = builder.addState(UNKNOWN);\r
  69         builder = builder.addState(STOPPING);\r
  70         builder = builder.addState(STOPPED);\r
  71         builder = builder.addState(ENTERING_MAINTENANCE_MODE);\r
  72         builder = builder.addState(MAINTENANCE_MODE);\r
  73         builder = builder.addState(RESTARTING);\r
  74 \r
  75         builder = builder.addEvent(START);\r
  76         builder = builder.addEvent(STOP);\r
  77         builder = builder.addEvent(RESTART);\r
  78         builder = builder.addEvent(MAINTENANCE_MODE_EVENT);\r
  79 \r
  80         /*\r
  81          *  for addTransition:\r
  82          *  param 1: current state; param 2: received command/request; param 3: new transition state\r
  83          */\r
  84         // start\r
  85         builder = builder.addTransition(STOPPED,                   START, STARTING);\r
  86         builder = builder.addTransition(MAINTENANCE_MODE,          START, STARTING);\r
  87         builder = builder.addTransition(ERROR,                     START, STARTING);\r
  88         // stop\r
  89         builder = builder.addTransition(STARTED,                   STOP, STOPPING);\r
  90         builder = builder.addTransition(STARTING,                  STOP, STOPPING);\r
  91         builder = builder.addTransition(ENTERING_MAINTENANCE_MODE, STOP, STOPPING);\r
  92         builder = builder.addTransition(MAINTENANCE_MODE,          STOP, STOPPING);\r
  93         builder = builder.addTransition(ERROR,                     STOP, STOPPING);\r
  94         // maintenance mode\r
  95         builder = builder.addTransition(\r
  96                 STARTED, MAINTENANCE_MODE_EVENT, ENTERING_MAINTENANCE_MODE);\r
  97         // restart\r
  98         builder = builder.addTransition(STOPPED,                   RESTART, RESTARTING);\r
  99         builder = builder.addTransition(STARTING,                  RESTART, RESTARTING);\r
 100         builder = builder.addTransition(STARTED,                   RESTART, RESTARTING);\r
 101         builder = builder.addTransition(ENTERING_MAINTENANCE_MODE, RESTART, RESTARTING);\r
 102         builder = builder.addTransition(MAINTENANCE_MODE,          RESTART, RESTARTING);\r
 103         builder = builder.addTransition(ERROR,                     RESTART, RESTARTING);\r
 104 \r
 105         return builder.build();\r
 106     }\r
 107 }\r