/*
* Copyright 2015 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.support;
import org.springframework.messaging.Message;
import org.springframework.statemachine.StateContext;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.state.State;
import org.springframework.statemachine.transition.Transition;
/**
* Adapter helper implementation for {@link StateMachineInterceptor}.
*
* @author Janne Valkealahti
*
* @param <S> the type of state
* @param <E> the type of event
*/
public class StateMachineInterceptorAdapter<S, E> implements StateMachineInterceptor<S, E> {
@Override
public Message<E> preEvent(Message<E> message, StateMachine<S, E> stateMachine) {
return message;
}
@Override
public void preStateChange(State<S, E> state, Message<E> message, Transition<S, E> transition,
StateMachine<S, E> stateMachine) {
}
@Override
public void postStateChange(State<S, E> state, Message<E> message, Transition<S, E> transition,
StateMachine<S, E> stateMachine) {
}
@Override
public StateContext<S, E> preTransition(StateContext<S, E> stateContext) {
return stateContext;
}
@Override
public StateContext<S, E> postTransition(StateContext<S, E> stateContext) {
return stateContext;
}
@Override
public Exception stateMachineError(StateMachine<S, E> stateMachine, Exception exception) {
return exception;
}
}