@Override
public void afterPropertiesSet() throws Exception {
// do not continue without configurers, it would not work
if (getConfigurers() == null || getConfigurers().size() == 0) {
throw new BeanDefinitionStoreException(
"Cannot configure state machine due to missing configurers. Did you remember to use "
+ "@EnableStateMachine with a StateMachineConfigurerAdapter.");
}
for (AnnotationConfigurer<StateMachineConfig<S, E>, StateMachineConfigBuilder<S, E>>
configurer : getConfigurers()) {
Class<?> clazz = configurer.getClass();
if (ClassUtils.getUserClass(clazz).getName().equals(clazzName)) {
getBuilder().apply(configurer);
}
}
StateMachineConfig<S, E> stateMachineConfig = getBuilder().getOrBuild();
TransitionsData<S, E> stateMachineTransitions = stateMachineConfig.getTransitions();
StatesData<S, E> stateMachineStates = stateMachineConfig.getStates();
ConfigurationData<S, E> stateMachineConfigurationConfig =
stateMachineConfig.getStateMachineConfigurationConfig();
ObjectStateMachineFactory<S, E> stateMachineFactory =
new ObjectStateMachineFactory<S, E>(
new DefaultStateMachineModel<S, E>(
stateMachineConfigurationConfig, stateMachineStates, stateMachineTransitions));
stateMachineFactory.setBeanFactory(getBeanFactory());
stateMachineFactory.setContextEventsEnabled(contextEvents);
stateMachineFactory.setBeanName(beanName);
stateMachineFactory.setHandleAutostartup(stateMachineConfigurationConfig.isAutoStart());
StateMachine<S, E> stateMachine = stateMachineFactory.getStateMachine();
this.lifecycle = (SmartLifecycle) stateMachine;
this.disposableBean = (DisposableBean) stateMachine;
setObject(stateMachine);
}
/**
* Builds a {@link StateMachine}.
*
* @return the state machine
*/
public StateMachine<S, E> build() {
try {
builder.apply(adapter);
StateMachineConfig<S, E> stateMachineConfig = builder.getOrBuild();
TransitionsData<S, E> stateMachineTransitions = stateMachineConfig.getTransitions();
StatesData<S, E> stateMachineStates = stateMachineConfig.getStates();
ConfigurationData<S, E> stateMachineConfigurationConfig =
stateMachineConfig.getStateMachineConfigurationConfig();
ObjectStateMachineFactory<S, E> stateMachineFactory = null;
if (stateMachineConfig.getModel() != null
&& stateMachineConfig.getModel().getFactory() != null) {
stateMachineFactory =
new ObjectStateMachineFactory<S, E>(
new DefaultStateMachineModel<S, E>(stateMachineConfigurationConfig, null, null),
stateMachineConfig.getModel().getFactory());
} else {
stateMachineFactory =
new ObjectStateMachineFactory<S, E>(
new DefaultStateMachineModel<S, E>(
stateMachineConfigurationConfig, stateMachineStates, stateMachineTransitions),
null);
}
stateMachineFactory.setHandleAutostartup(stateMachineConfigurationConfig.isAutoStart());
if (stateMachineConfigurationConfig.getBeanFactory() != null) {
stateMachineFactory.setBeanFactory(stateMachineConfigurationConfig.getBeanFactory());
}
if (stateMachineConfigurationConfig.getTaskExecutor() != null) {
stateMachineFactory.setTaskExecutor(stateMachineConfigurationConfig.getTaskExecutor());
} else {
stateMachineFactory.setTaskExecutor(new SyncTaskExecutor());
}
if (stateMachineConfigurationConfig.getTaskScheduler() != null) {
stateMachineFactory.setTaskScheduler(stateMachineConfigurationConfig.getTaskScheduler());
} else {
stateMachineFactory.setTaskScheduler(new ConcurrentTaskScheduler());
}
return stateMachineFactory.getStateMachine();
} catch (Exception e) {
throw new StateMachineException("Error building state machine", e);
}
}