07e6076e0b
- Add logging of internal transitions which makes things a bit more clear with showcase sample. - Update showcase docs with clarification of use of nested states.
80 lines
2.6 KiB
Java
80 lines
2.6 KiB
Java
/*
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* Copyright 2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package demo;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Scanner;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.context.ApplicationListener;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.statemachine.event.OnStateEntryEvent;
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import org.springframework.statemachine.event.OnStateExitEvent;
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import org.springframework.statemachine.event.OnTransitionEvent;
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import org.springframework.statemachine.event.StateMachineEvent;
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import org.springframework.statemachine.transition.TransitionKind;
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@Configuration
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public class CommonConfiguration {
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private final static Log log = LogFactory.getLog(CommonConfiguration.class);
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@Configuration
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static class ApplicationConfig {
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@Bean
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public TestEventListener testEventListener() {
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return new TestEventListener();
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}
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@Bean
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public String stateChartModel() throws IOException {
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ClassPathResource model = new ClassPathResource("statechartmodel.txt");
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InputStream inputStream = model.getInputStream();
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Scanner scanner = new Scanner(inputStream);
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String content = scanner.useDelimiter("\\Z").next();
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scanner.close();
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return content;
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}
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}
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static class TestEventListener implements ApplicationListener<StateMachineEvent> {
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@Override
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public void onApplicationEvent(StateMachineEvent event) {
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if (event instanceof OnStateEntryEvent) {
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OnStateEntryEvent e = (OnStateEntryEvent)event;
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log.info("Entry state " + e.getState().getId());
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} else if (event instanceof OnStateExitEvent) {
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OnStateExitEvent e = (OnStateExitEvent)event;
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log.info("Exit state " + e.getState().getId());
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} else if (event instanceof OnTransitionEvent) {
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OnTransitionEvent e = (OnTransitionEvent)event;
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if (e.getTransition().getKind() == TransitionKind.INTERNAL) {
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log.info("Internal transition source=" + e.getTransition().getSource().getId());
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}
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}
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}
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}
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}
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