package org.springframework.yarn.support.statemachine;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.SyncTaskExecutor;
import org.springframework.core.task.TaskExecutor;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.yarn.support.statemachine.action.Action;
import org.springframework.yarn.support.statemachine.config.EnableStateMachine;
import org.springframework.yarn.support.statemachine.config.EnumStateMachineConfigurerAdapter;
import org.springframework.yarn.support.statemachine.config.builders.StateMachineStateConfigurer;
import org.springframework.yarn.support.statemachine.config.builders.StateMachineTransitionConfigurer;
public class ActionTests extends AbstractStateMachineTests {
@SuppressWarnings({ "unchecked" })
@Test
public void testTransitionActions() {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(Config1.class);
assertTrue(ctx.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
EnumStateMachine<TestStates,TestEvents> machine =
ctx.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, EnumStateMachine.class);
TestCountAction testAction1 = ctx.getBean("testAction1", TestCountAction.class);
TestCountAction testAction2 = ctx.getBean("testAction2", TestCountAction.class);
TestCountAction testAction3 = ctx.getBean("testAction3", TestCountAction.class);
machine.sendEvent(MessageBuilder.withPayload(TestEvents.E1).build());
machine.sendEvent(MessageBuilder.withPayload(TestEvents.E2).build());
machine.sendEvent(MessageBuilder.withPayload(TestEvents.E3).build());
assertThat(testAction1.count, is(1));
assertThat(testAction2.count, is(1));
assertThat(testAction3.count, is(1));
ctx.close();
}
@Test
public void testEventFromAction() {
}
private static class TestCountAction implements Action {
int count = 0;
@Override
public void execute(MessageHeaders headers) {
count++;
}
}
@Configuration
@EnableStateMachine
public static class Config1 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.S1)
.state(TestStates.S1)
.state(TestStates.S2)
.state(TestStates.S3)
.state(TestStates.S4);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.S1)
.target(TestStates.S2)
.event(TestEvents.E1)
.action(testAction1())
.and()
.withExternal()
.source(TestStates.S2)
.target(TestStates.S3)
.event(TestEvents.E2)
.action(testAction2())
.and()
.withExternal()
.source(TestStates.S3)
.target(TestStates.S4)
.event(TestEvents.E3)
.action(testAction3());
}
@Bean
public TestCountAction testAction1() {
return new TestCountAction();
}
@Bean
public TestCountAction testAction2() {
return new TestCountAction();
}
@Bean
public TestCountAction testAction3() {
return new TestCountAction();
}
@Bean
public TaskExecutor taskExecutor() {
return new SyncTaskExecutor();
}
}
}