/*
* Copyright 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 demo.datajpa;
import java.util.LinkedList;
import java.util.List;
import org.springframework.statemachine.StateContext;
import org.springframework.statemachine.StateContext.Stage;
import org.springframework.statemachine.listener.StateMachineListenerAdapter;
public class StateMachineLogListener extends StateMachineListenerAdapter<String, String> {
private final LinkedList<String> messages = new LinkedList<String>();
public List<String> getMessages() {
return messages;
}
public void resetMessages() {
messages.clear();
}
@Override
public void stateContext(StateContext<String, String> stateContext) {
if (stateContext.getStage() == Stage.STATE_ENTRY) {
messages.addFirst("Enter " + stateContext.getTarget().getId());
} else if (stateContext.getStage() == Stage.STATE_EXIT) {
messages.addFirst("Exit " + stateContext.getSource().getId());
} else if (stateContext.getStage() == Stage.STATEMACHINE_START) {
messages.addLast("Machine started");
} else if (stateContext.getStage() == Stage.STATEMACHINE_STOP) {
messages.addFirst("Machine stopped");
}
}
}