/*
* 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.state;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.util.EnumSet;
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.statemachine.AbstractStateMachineTests;
import org.springframework.statemachine.ObjectStateMachine;
import org.springframework.statemachine.StateMachineSystemConstants;
import org.springframework.statemachine.config.EnableStateMachine;
import org.springframework.statemachine.config.EnumStateMachineConfigurerAdapter;
import org.springframework.statemachine.config.StateMachineConfigurerAdapter;
import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;
import org.springframework.statemachine.config.builders.StateMachineTransitionConfigurer;
public class EndStateTests extends AbstractStateMachineTests {
@Override
protected AnnotationConfigApplicationContext buildContext() {
return new AnnotationConfigApplicationContext();
}
@Test
public void testEndStateCompletes() {
context.register(Config1.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
@SuppressWarnings("unchecked")
ObjectStateMachine<TestStates,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, ObjectStateMachine.class);
machine.start();
assertThat(machine, notNullValue());
assertThat(machine.isComplete(), is(false));
machine.sendEvent(TestEvents.E1);
assertThat(machine.isComplete(), is(false));
machine.sendEvent(TestEvents.E2);
assertThat(machine.isComplete(), is(false));
machine.sendEvent(TestEvents.E3);
assertThat(machine.isComplete(), is(false));
machine.sendEvent(TestEvents.E4);
assertThat(machine.isComplete(), is(false));
machine.sendEvent(TestEvents.EF);
assertThat(machine.isComplete(), is(true));
assertThat(machine.getState().getIds(), contains(TestStates.SF));
}
@Test
public void testEndStatesWithRegions() throws InterruptedException {
context.register(Config2.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
@SuppressWarnings("unchecked")
ObjectStateMachine<TestStates3,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, ObjectStateMachine.class);
machine.start();
machine.sendEvent(TestEvents.E1);
assertThat(machine.getState().getIds(), contains(TestStates3.READY));
}
@Test
public void testEndStatesWithRegionsDefinedInStates() throws InterruptedException {
context.register(Config3.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
@SuppressWarnings("unchecked")
ObjectStateMachine<TestStates3,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, ObjectStateMachine.class);
machine.start();
machine.sendEvent(TestEvents.E1);
assertThat(machine.getState().getIds(), contains(TestStates3.READY));
}
@Test
public void testEndStateCompletesSubmachine() {
context.register(Config4.class);
context.refresh();
assertTrue(context.containsBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE));
@SuppressWarnings("unchecked")
ObjectStateMachine<TestStates,TestEvents> machine =
context.getBean(StateMachineSystemConstants.DEFAULT_ID_STATEMACHINE, ObjectStateMachine.class);
machine.start();
assertThat(machine, notNullValue());
assertThat(machine.isComplete(), is(false));
assertThat(machine.getState().getIds(), contains(TestStates.SI));
machine.sendEvent(TestEvents.E1);
assertThat(machine.isComplete(), is(false));
assertThat(machine.getState().getIds(), contains(TestStates.S1, TestStates.S11));
machine.sendEvent(TestEvents.E2);
assertThat(machine.isComplete(), is(false));
assertThat(machine.getState().getIds(), contains(TestStates.S1, TestStates.S12));
machine.sendEvent(TestEvents.E3);
assertThat(machine.isComplete(), is(false));
assertThat(machine.getState().getIds(), contains(TestStates.S1, TestStates.SF));
}
@Test
public void testMultipleTransitionsToSameEndState() {
context.register(Config5.class);
context.refresh();
}
@Test
public void testMultipleTransitionsToSameEndStateFromChoices() {
context.register(Config6.class);
context.refresh();
}
@Configuration
@EnableStateMachine
static class Config1 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.SI)
.states(EnumSet.allOf(TestStates.class))
.end(TestStates.SF);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.SI)
.target(TestStates.S1)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.S1)
.target(TestStates.S2)
.event(TestEvents.E2)
.and()
.withExternal()
.source(TestStates.S2)
.target(TestStates.S3)
.event(TestEvents.E3)
.and()
.withExternal()
.source(TestStates.S3)
.target(TestStates.S4)
.event(TestEvents.E4)
.and()
.withExternal()
.source(TestStates.S4)
.target(TestStates.SF)
.event(TestEvents.EF);
}
@Bean
public TaskExecutor taskExecutor() {
return new SyncTaskExecutor();
}
}
@Configuration
@EnableStateMachine
static class Config2 extends EnumStateMachineConfigurerAdapter<TestStates3, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates3, TestEvents> states)
throws Exception {
states
.withStates()
.initial(TestStates3.READY)
.fork(TestStates3.FORK)
.state(TestStates3.TASKS)
.join(TestStates3.JOIN)
.and()
.withStates()
.parent(TestStates3.TASKS)
.initial(TestStates3.T1)
.end(TestStates3.T1E)
.and()
.withStates()
.parent(TestStates3.TASKS)
.initial(TestStates3.T2)
.end(TestStates3.T2E)
.and()
.withStates()
.parent(TestStates3.TASKS)
.initial(TestStates3.T3)
.end(TestStates3.T3E);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates3, TestEvents> transitions)
throws Exception {
transitions
.withExternal()
.source(TestStates3.READY).target(TestStates3.FORK)
.event(TestEvents.E1)
.and()
.withFork()
.source(TestStates3.FORK)
.target(TestStates3.T1)
.target(TestStates3.T2)
.target(TestStates3.T3)
.and()
.withExternal()
.source(TestStates3.T1).target(TestStates3.T1E)
.and()
.withExternal()
.source(TestStates3.T2).target(TestStates3.T2E)
.and()
.withExternal()
.source(TestStates3.T3).target(TestStates3.T3E)
.and()
.withJoin()
.source(TestStates3.T1E)
.source(TestStates3.T2E)
.source(TestStates3.T3E)
.target(TestStates3.JOIN)
.and()
.withExternal()
.source(TestStates3.JOIN).target(TestStates3.READY);
}
}
@Configuration
@EnableStateMachine
static class Config3 extends EnumStateMachineConfigurerAdapter<TestStates3, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates3, TestEvents> states)
throws Exception {
states
.withStates()
.initial(TestStates3.READY)
.fork(TestStates3.FORK)
.state(TestStates3.TASKS)
.join(TestStates3.JOIN)
.and()
.withStates()
.parent(TestStates3.TASKS)
.initial(TestStates3.T1)
.state(TestStates3.T1E)
.end(TestStates3.T1E)
.and()
.withStates()
.parent(TestStates3.TASKS)
.initial(TestStates3.T2)
.state(TestStates3.T2E)
.end(TestStates3.T2E)
.and()
.withStates()
.parent(TestStates3.TASKS)
.initial(TestStates3.T3)
.state(TestStates3.T3E)
.end(TestStates3.T3E);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates3, TestEvents> transitions)
throws Exception {
transitions
.withExternal()
.source(TestStates3.READY).target(TestStates3.FORK)
.event(TestEvents.E1)
.and()
.withFork()
.source(TestStates3.FORK)
.target(TestStates3.T1)
.target(TestStates3.T2)
.target(TestStates3.T3)
.and()
.withExternal()
.state(TestStates3.TASKS)
.source(TestStates3.T1).target(TestStates3.T1E)
.and()
.withExternal()
.state(TestStates3.TASKS)
.source(TestStates3.T2).target(TestStates3.T2E)
.and()
.withExternal()
.state(TestStates3.TASKS)
.source(TestStates3.T3).target(TestStates3.T3E)
.and()
.withJoin()
.source(TestStates3.T1E)
.source(TestStates3.T2E)
.source(TestStates3.T3E)
.target(TestStates3.JOIN)
.and()
.withExternal()
.source(TestStates3.JOIN).target(TestStates3.READY);
}
}
@Configuration
@EnableStateMachine
static class Config4 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.SI)
.state(TestStates.S1)
.and()
.withStates()
.parent(TestStates.S1)
.initial(TestStates.S11)
.state(TestStates.S12)
.end(TestStates.SF);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.SI)
.target(TestStates.S1)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.S11)
.target(TestStates.S12)
.event(TestEvents.E2)
.and()
.withExternal()
.source(TestStates.S12)
.target(TestStates.SF)
.event(TestEvents.E3);
}
@Bean
public TaskExecutor taskExecutor() {
return new SyncTaskExecutor();
}
}
@Configuration
@EnableStateMachine
static class Config5 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.SI)
.state(TestStates.S1)
.state(TestStates.S2)
.end(TestStates.SF);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.SI)
.target(TestStates.S1)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.SI)
.target(TestStates.S2)
.event(TestEvents.E2)
.and()
.withExternal()
.source(TestStates.S1)
.target(TestStates.SF)
.event(TestEvents.E3)
.and()
.withExternal()
.source(TestStates.S2)
.target(TestStates.SF)
.event(TestEvents.E3);
}
}
@Configuration
@EnableStateMachine
static class Config6 extends StateMachineConfigurerAdapter<String, String> {
@Override
public void configure(StateMachineStateConfigurer<String, String> states) throws Exception {
states
.withStates()
.initial("SI")
.choice("JOIN1")
.choice("JOIN2")
.end("SF");
}
@Override
public void configure(StateMachineTransitionConfigurer<String, String> transitions) throws Exception {
transitions
.withExternal()
.source("SI")
.target("JOIN1")
.event("E1")
.and()
.withExternal()
.source("SI")
.target("JOIN2")
.event("E2")
.and()
.withChoice()
.source("JOIN1")
.last("SF")
.and()
.withChoice()
.source("JOIN2")
.last("SF");
}
}
}