2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * Copyright (C) 2017 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
20 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
23 package org.openecomp.appc.lifecyclemanager.impl;
26 import java.util.concurrent.ConcurrentHashMap;
28 import org.openecomp.appc.i18n.Msg;
29 import org.openecomp.appc.lifecyclemanager.LifecycleManager;
30 import org.openecomp.appc.lifecyclemanager.helper.MetadataReader;
31 import org.openecomp.appc.lifecyclemanager.objects.*;
32 import org.openecomp.appc.statemachine.*;
33 import org.openecomp.appc.statemachine.impl.StateMachineFactory;
34 import org.openecomp.appc.statemachine.objects.*;
35 import com.att.eelf.configuration.EELFLogger;
36 import com.att.eelf.configuration.EELFManager;
37 import com.att.eelf.i18n.EELFResourceManager;
40 public class LifecycleManagerImpl implements LifecycleManager{
42 private MetadataReader metadataReader;
43 private static Map<String,StateMachine> stateMachineMap = new ConcurrentHashMap<String,StateMachine>();
44 private static final EELFLogger logger = EELFManager.getInstance().getLogger(LifecycleManagerImpl.class);
45 private static EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
46 public LifecycleManagerImpl(){
47 this.metadataReader = new MetadataReader();
51 public String getNextState(String vnfType, String currentState, String event) throws NoTransitionDefinedException,LifecycleException{
52 if (logger.isTraceEnabled()) {
53 logger.trace("Entering to getNextState with vnfType = "+ vnfType + ", currentState = " + currentState + ", event = " + event);
56 State nextState = null;
57 StateMachine machine = null;
58 StateMachineResponse response;
60 machine = this.getStateMachine(vnfType);
61 response = machine.handleEvent(new State(currentState),new Event(event));
62 if(Response.NO_TRANSITION_DEFINED.equals(response.getResponse())){
63 errorLogger.error(EELFResourceManager.format(Msg.VF_ILLEGAL_COMMAND, vnfType,event,currentState));
64 throw new NoTransitionDefinedException("No Transition Defined for currentState = " + currentState + ", event = " + event,currentState,event);
66 nextState = response.getNextState();
67 } catch (InvalidInputException e) {
68 logger.error(e.getMessage());
69 throw new LifecycleException(e,currentState,event);
71 if (logger.isTraceEnabled()) {
72 logger.trace("Exiting from getNextState with (nextState = "+nextState.getStateName()!=null?nextState.getStateName():"null"+")");
74 return nextState.getStateName();
77 private StateMachine getStateMachine(String vnfType){
78 if (logger.isTraceEnabled()) {
79 logger.trace("Entering to getNextState with vnfType = "+ vnfType);
84 StateMachine machine = stateMachineMap.get(vnfType);
86 StateMachineMetadata metadata = metadataReader.readMetadata(vnfType);
87 machine = StateMachineFactory.getStateMachine(metadata);
88 stateMachineMap.put(vnfType,machine);
91 logger.trace("Exiting getStateMachine with (StateMachine = "+stateMachineMap.get(vnfType)!=null?stateMachineMap.get(vnfType).toString():"null"+")");
92 return stateMachineMap.get(vnfType);