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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.onap.appc.statemachine.impl.readers;
import org.onap.appc.statemachine.StateMetaDataReader;
import org.onap.appc.statemachine.objects.Event;
import org.onap.appc.statemachine.objects.State;
import org.onap.appc.statemachine.objects.StateMachineMetadata;
/**
* Reader for APPC OAM MetaData
*/
public class AppcOamMetaDataReader implements StateMetaDataReader {
/**
* APPC Operation Enum
*/
public enum AppcOperation {
MaintenanceMode,
Restart,
Start,
Stop
}
@Override
public StateMachineMetadata readMetadata() {
State notInstantiated = new State(AppcOamStates.NotInstantiated.toString());
State instantiated = new State(AppcOamStates.Instantiated.toString());
State restarting = new State(AppcOamStates.Restarting.toString());
State starting = new State(AppcOamStates.Starting.toString());
State started = new State(AppcOamStates.Started.toString());
State enteringMaintenanceMode = new State(AppcOamStates.EnteringMaintenanceMode.toString());
State maintenanceMode = new State(AppcOamStates.MaintenanceMode.toString());
State error = new State(AppcOamStates.Error.toString());
State unknown = new State(AppcOamStates.Unknown.toString());
State stopping = new State(AppcOamStates.Stopping.toString());
State stopped = new State(AppcOamStates.Stopped.toString());
Event start = new Event(AppcOperation.Start.toString());
Event stop = new Event(AppcOperation.Stop.toString());
Event maintenanceModeEvent = new Event(AppcOperation.MaintenanceMode.toString());
Event restart = new Event(AppcOperation.Restart.toString());
StateMachineMetadata.StateMachineMetadataBuilder builder = new StateMachineMetadata
.StateMachineMetadataBuilder();
builder = builder.addState(notInstantiated);
builder = builder.addState(instantiated);
builder = builder.addState(starting);
builder = builder.addState(started);
builder = builder.addState(error);
builder = builder.addState(unknown);
builder = builder.addState(stopping);
builder = builder.addState(stopped);
builder = builder.addState(enteringMaintenanceMode);
builder = builder.addState(maintenanceMode);
builder = builder.addState(restarting);
builder = builder.addEvent(start);
builder = builder.addEvent(stop);
builder = builder.addEvent(restart);
builder = builder.addEvent(maintenanceModeEvent);
/*
* for addTransition:
* param 1: current state; param 2: received command/request; param 3: new transition state
*/
// start
builder = builder.addTransition(stopped, start, starting);
builder = builder.addTransition(maintenanceMode, start, starting);
builder = builder.addTransition(error, start, starting);
// stop
builder = builder.addTransition(started, stop, stopping);
builder = builder.addTransition(starting, stop, stopping);
builder = builder.addTransition(enteringMaintenanceMode, stop, stopping);
builder = builder.addTransition(maintenanceMode, stop, stopping);
builder = builder.addTransition(error, stop, stopping);
// maintenance mode
builder = builder.addTransition(
started, maintenanceModeEvent, enteringMaintenanceMode);
// restart
builder = builder.addTransition(stopped, restart, restarting);
builder = builder.addTransition(starting, restart, restarting);
builder = builder.addTransition(started, restart, restarting);
builder = builder.addTransition(enteringMaintenanceMode, restart, restarting);
builder = builder.addTransition(maintenanceMode, restart, restarting);
builder = builder.addTransition(error, restart, restarting);
return builder.build();
}
}
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