/*
* Copyright 2015-2016 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 org.springframework.statemachine.action;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.notNullValue;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
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.support.MessageBuilder;
import org.springframework.statemachine.AbstractStateMachineTests;
import org.springframework.statemachine.StateContext;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.StateMachineSystemConstants;
import org.springframework.statemachine.config.EnableStateMachine;
import org.springframework.statemachine.config.EnumStateMachineConfigurerAdapter;
import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;
import org.springframework.statemachine.config.builders.StateMachineTransitionConfigurer;
/**
* Tests for state machine actions.
*
* @author Janne Valkealahti
*
*/
public class ActionTests extends AbstractStateMachineTests {
@SuppressWarnings({ "unchecked" })
@Test
public void testTransitionActions() {
context.register(Config1.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
StateMachine<TestStates,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, StateMachine.class);
machine.start();
TestCountAction testAction1 = context.getBean("testAction1", TestCountAction.class);
TestCountAction testAction2 = context.getBean("testAction2", TestCountAction.class);
TestCountAction testAction3 = context.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));
}
@SuppressWarnings({ "unchecked" })
@Test
public void testTransitionActionErrors() {
context.register(Config2.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
StateMachine<TestStates,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, StateMachine.class);
machine.start();
TestCountAction testAction1 = context.getBean("testAction1", TestCountAction.class);
TestCountAction testErrorAction = context.getBean("testErrorAction", TestCountAction.class);
machine.sendEvent(MessageBuilder.withPayload(TestEvents.E1).build());
assertThat(testAction1.count, is(1));
assertThat(testErrorAction.count, is(1));
assertThat(testErrorAction.context, notNullValue());
assertThat(testErrorAction.context.getException(), notNullValue());
assertThat(testErrorAction.context.getException(), instanceOf(RuntimeException.class));
assertThat(testErrorAction.context.getException().getMessage(), is("Fake Error"));
}
@SuppressWarnings({ "unchecked" })
@Test
public void testStateActionErrors() throws Exception {
context.register(Config3.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
StateMachine<TestStates,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, StateMachine.class);
machine.start();
TestCountAction testAction2 = context.getBean("testAction2", TestCountAction.class);
TestCountAction testAction3 = context.getBean("testAction3", TestCountAction.class);
TestCountAction testAction4 = context.getBean("testAction4", TestCountAction.class);
TestCountAction testErrorAction2 = context.getBean("testErrorAction2", TestCountAction.class);
TestCountAction testErrorAction3 = context.getBean("testErrorAction3", TestCountAction.class);
TestCountAction testErrorAction4 = context.getBean("testErrorAction4", TestCountAction.class);
machine.sendEvent(MessageBuilder.withPayload(TestEvents.E1).build());
assertThat(machine.getState().getId(), is(TestStates.S2));
assertThat(testErrorAction3.latch.await(1, TimeUnit.SECONDS), is(true));
assertThat(testErrorAction2.latch.await(1, TimeUnit.SECONDS), is(true));
machine.sendEvent(MessageBuilder.withPayload(TestEvents.E2).build());
assertThat(testErrorAction4.latch.await(1, TimeUnit.SECONDS), is(true));
assertThat(testAction2.count, is(1));
assertThat(testErrorAction2.count, is(1));
assertThat(testErrorAction2.context, notNullValue());
assertThat(testErrorAction2.context.getException(), notNullValue());
assertThat(testErrorAction2.context.getException(), instanceOf(RuntimeException.class));
assertThat(testErrorAction2.context.getException().getMessage(), is("Fake Error"));
assertThat(testAction3.count, is(1));
assertThat(testErrorAction3.count, is(1));
assertThat(testErrorAction3.context, notNullValue());
assertThat(testErrorAction3.context.getException(), notNullValue());
assertThat(testErrorAction3.context.getException(), instanceOf(RuntimeException.class));
assertThat(testErrorAction3.context.getException().getMessage(), is("Fake Error"));
assertThat(testAction4.count, is(1));
assertThat(testErrorAction4.count, is(1));
assertThat(testErrorAction4.context, notNullValue());
assertThat(testErrorAction4.context.getException(), notNullValue());
assertThat(testErrorAction4.context.getException(), instanceOf(RuntimeException.class));
assertThat(testErrorAction4.context.getException().getMessage(), is("Fake Error"));
}
@Test
public void testEventFromAction() {
}
@Override
protected AnnotationConfigApplicationContext buildContext() {
return new AnnotationConfigApplicationContext();
}
private static class TestCountAction implements Action<TestStates, TestEvents> {
int count = 0;
StateContext<TestStates, TestEvents> context;
CountDownLatch latch = new CountDownLatch(1);
public TestCountAction() {
count = 0;
}
@Override
public void execute(StateContext<TestStates, TestEvents> context) {
this.context = context;
count++;
latch.countDown();
}
}
@Configuration
@EnableStateMachine
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();
}
}
@Configuration
@EnableStateMachine
static class Config2 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);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.S1)
.target(TestStates.S2)
.event(TestEvents.E1)
.action(testAction1(), testErrorAction());
}
@Bean
public TestCountAction testAction1() {
return new TestCountAction() {
@Override
public void execute(StateContext<TestStates, TestEvents> context) {
super.execute(context);
throw new RuntimeException("Fake Error");
}
};
}
@Bean
public TestCountAction testErrorAction() {
return new TestCountAction();
}
@Bean
public TaskExecutor taskExecutor() {
return new SyncTaskExecutor();
}
}
@Configuration
@EnableStateMachine
static class Config3 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.S1)
.state(TestStates.S2)
.stateDo(TestStates.S2, testAction2(), testErrorAction2())
.stateEntry(TestStates.S2, testAction3(), testErrorAction3())
.stateExit(TestStates.S2, testAction4(), testErrorAction4())
.state(TestStates.S3);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.S1)
.target(TestStates.S2)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.S2)
.target(TestStates.S3)
.event(TestEvents.E2);
}
@Bean
public TestCountAction testAction2() {
return new TestCountAction() {
@Override
public void execute(StateContext<TestStates, TestEvents> context) {
super.execute(context);
throw new RuntimeException("Fake Error");
}
};
}
@Bean
public TestCountAction testAction3() {
return new TestCountAction() {
@Override
public void execute(StateContext<TestStates, TestEvents> context) {
super.execute(context);
throw new RuntimeException("Fake Error");
}
};
}
@Bean
public TestCountAction testAction4() {
return new TestCountAction() {
@Override
public void execute(StateContext<TestStates, TestEvents> context) {
super.execute(context);
throw new RuntimeException("Fake Error");
}
};
}
@Bean
public TestCountAction testErrorAction2() {
return new TestCountAction();
}
@Bean
public TestCountAction testErrorAction3() {
return new TestCountAction();
}
@Bean
public TestCountAction testErrorAction4() {
return new TestCountAction();
}
}
}