/*
* Copyright 2015-2016 the original author or authors.
*
* 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.
*/
package org.springframework.statemachine.config;
import java.util.Collection;
import java.util.UUID;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.core.task.TaskExecutor;
import org.springframework.messaging.Message;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.statemachine.ExtendedState;
import org.springframework.statemachine.ObjectStateMachine;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.action.Action;
import org.springframework.statemachine.config.model.StateMachineModel;
import org.springframework.statemachine.config.model.StateMachineModelFactory;
import org.springframework.statemachine.region.Region;
import org.springframework.statemachine.state.ObjectState;
import org.springframework.statemachine.state.PseudoState;
import org.springframework.statemachine.state.RegionState;
import org.springframework.statemachine.state.State;
import org.springframework.statemachine.transition.Transition;
/**
* Implementation of a {@link StateMachineFactory} which know the actual types of
* {@link State} and {@link StateMachine}.
*
* @author Janne Valkealahti
*
* @param <S> the type of state
* @param <E> the type of event
*/
public class ObjectStateMachineFactory<S, E> extends AbstractStateMachineFactory<S, E> {
/**
* Instantiates a new object state machine factory.
*
* @param defaultStateMachineModel the default state machine model
*/
public ObjectStateMachineFactory(StateMachineModel<S, E> defaultStateMachineModel) {
this(defaultStateMachineModel, null);
}
/**
* Instantiates a new object state machine factory.
*
* @param defaultStateMachineModel the default state machine model
* @param stateMachineModelFactory the state machine model factory
*/
public ObjectStateMachineFactory(StateMachineModel<S, E> defaultStateMachineModel,
StateMachineModelFactory<S, E> stateMachineModelFactory) {
super(defaultStateMachineModel, stateMachineModelFactory);
}
@Override
protected StateMachine<S, E> buildStateMachineInternal(Collection<State<S, E>> states, Collection<Transition<S, E>> transitions,
State<S, E> initialState, Transition<S, E> initialTransition, Message<E> initialEvent, ExtendedState extendedState,
PseudoState<S, E> historyState, Boolean contextEventsEnabled, BeanFactory beanFactory, TaskExecutor taskExecutor,
TaskScheduler taskScheduler, String beanName, String machineId, UUID uuid, StateMachineModel<S, E> stateMachineModel) {
ObjectStateMachine<S, E> machine = new ObjectStateMachine<S, E>(states, transitions, initialState, initialTransition, initialEvent,
extendedState, uuid);
machine.setId(machineId);
machine.setHistoryState(historyState);
if (contextEventsEnabled != null) {
machine.setContextEventsEnabled(contextEventsEnabled);
}
if (beanFactory != null) {
machine.setBeanFactory(beanFactory);
}
if (taskExecutor != null) {
machine.setTaskExecutor(taskExecutor);
}
if (taskScheduler != null) {
machine.setTaskScheduler(taskScheduler);
}
if (machine instanceof BeanNameAware) {
((BeanNameAware)machine).setBeanName(beanName);
}
machine.afterPropertiesSet();
return machine;
}
@Override
protected State<S, E> buildStateInternal(S id, Collection<E> deferred,
Collection<? extends Action<S, E>> entryActions, Collection<? extends Action<S, E>> exitActions,
Collection<? extends Action<S, E>> stateActions, PseudoState<S, E> pseudoState, StateMachineModel<S, E> stateMachineModel) {
ObjectState<S,E> objectState = new ObjectState<S, E>(id, deferred, entryActions, exitActions, stateActions, pseudoState, null, null);
BeanFactory beanFactory = resolveBeanFactory(stateMachineModel);
if (beanFactory != null) {
objectState.setBeanFactory(beanFactory);
}
TaskExecutor taskExecutor = resolveTaskExecutor(stateMachineModel);
if (taskExecutor != null) {
objectState.setTaskExecutor(taskExecutor);
}
TaskScheduler taskScheduler = resolveTaskScheduler(stateMachineModel);
if (taskScheduler != null) {
objectState.setTaskScheduler(taskScheduler);
}
return objectState;
}
@Override
protected RegionState<S, E> buildRegionStateInternal(S id, Collection<Region<S, E>> regions, Collection<E> deferred,
Collection<? extends Action<S, E>> entryActions, Collection<? extends Action<S, E>> exitActions, PseudoState<S, E> pseudoState) {
return new RegionState<S, E>(id, regions, deferred, entryActions, exitActions, pseudoState);
}
}