2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ============LICENSE_END=========================================================
24 package org.onap.appc.lifecyclemanager.impl;
26 import com.att.eelf.configuration.EELFLogger;
27 import com.att.eelf.configuration.EELFManager;
28 import com.att.eelf.i18n.EELFResourceManager;
29 import org.onap.appc.exceptions.InvalidInputException;
30 import org.onap.appc.i18n.Msg;
31 import org.onap.appc.lifecyclemanager.LifecycleManager;
32 import org.onap.appc.lifecyclemanager.objects.LifecycleException;
33 import org.onap.appc.lifecyclemanager.objects.NoTransitionDefinedException;
34 import org.onap.appc.statemachine.StateMachine;
35 import org.onap.appc.statemachine.StateMetaDataReader;
36 import org.onap.appc.statemachine.impl.StateMachineFactory;
37 import org.onap.appc.statemachine.impl.readers.AppcOamMetaDataReader;
38 import org.onap.appc.statemachine.impl.readers.VnfMetaDataReader;
39 import org.onap.appc.statemachine.objects.*;
42 import java.util.concurrent.ConcurrentHashMap;
44 public class LifecycleManagerImpl implements LifecycleManager{
46 private StateMetaDataReader metadataReader;
47 private static Map<String,StateMachine> stateMachineMap = new ConcurrentHashMap<>();
48 private final EELFLogger logger = EELFManager.getInstance().getLogger(LifecycleManagerImpl.class);
49 private final EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
52 public String getNextState(String vnfType, String currentState, String event) throws NoTransitionDefinedException,LifecycleException{
53 if (logger.isTraceEnabled()) {
54 logger.trace("Entering to getNextState with vnfType = "+ vnfType + ", currentState = " + currentState + ", event = " + event);
59 StateMachineResponse response;
61 machine = this.getStateMachine(vnfType);
62 response = machine.handleEvent(new State(currentState),new Event(event));
63 if(Response.NO_TRANSITION_DEFINED.equals(response.getResponse())){
64 errorLogger.error(EELFResourceManager.format(Msg.VF_ILLEGAL_COMMAND, vnfType,event,currentState));
65 throw new NoTransitionDefinedException("No Transition Defined for currentState = " + currentState + ", event = " + event,currentState,event);
67 nextState = response.getNextState();
68 } catch (InvalidInputException e) {
69 logger.error(e.getMessage());
70 throw new LifecycleException(e,currentState,event);
72 if (logger.isTraceEnabled()) {
73 logger.trace("Exiting from getNextState with (nextState = " + nextState.getStateName() + ")");
75 return nextState.getStateName();
78 private StateMachine getStateMachine(String vnfType) {
80 String vnfType1 = vnfType;
82 if (logger.isTraceEnabled()) {
83 logger.trace("Entering to getNextState with vnfType = "+ vnfType1);
88 StateMachine machine = stateMachineMap.get(vnfType1);
90 metadataReader = getMetadataReader(vnfType1);
91 StateMachineMetadata metadata = metadataReader.readMetadata();
92 machine = StateMachineFactory.getStateMachine(metadata);
93 stateMachineMap.put(vnfType1,machine);
96 logger.trace("Exiting getStateMachine with StateMachine = " + stateMachineMap.get(vnfType1).toString());
97 return stateMachineMap.get(vnfType1);
100 private StateMetaDataReader getMetadataReader(String vnfType) {
101 return vnfType.equals("APPC") ? new AppcOamMetaDataReader() : new VnfMetaDataReader();