/*
* 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 org.springframework.statemachine.persist;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.assertThat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
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.Configuration;
import org.springframework.statemachine.AbstractStateMachineTests;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.StateMachineContext;
import org.springframework.statemachine.StateMachinePersist;
import org.springframework.statemachine.TestUtils;
import org.springframework.statemachine.config.EnableStateMachineFactory;
import org.springframework.statemachine.config.EnumStateMachineConfigurerAdapter;
import org.springframework.statemachine.config.StateMachineFactory;
import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;
import org.springframework.statemachine.config.builders.StateMachineTransitionConfigurer;
import org.springframework.statemachine.listener.OrderedComposite;
import org.springframework.statemachine.listener.StateMachineListenerAdapter;
import org.springframework.statemachine.state.CompositePseudoStateListener;
import org.springframework.statemachine.state.PseudoState;
import org.springframework.statemachine.state.State;
import org.springframework.statemachine.transition.Transition;
public class StateMachinePersistTests4 extends AbstractStateMachineTests {
@Override
protected AnnotationConfigApplicationContext buildContext() {
return new AnnotationConfigApplicationContext();
}
@Test
public void testPersistRegions() throws Exception {
context.register(Config1.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
assertThat(stateMachine, notNullValue());
assertThat(stateMachine.getId(), is("testid"));
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
persister.persist(stateMachine, "xxx2");
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
persister.persist(stateMachine, "xxx3");
stateMachine = stateMachineFactory.getStateMachine();
assertThat(stateMachine, notNullValue());
assertThat(stateMachine.getId(), nullValue());
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine = stateMachineFactory.getStateMachine();
assertThat(stateMachine, notNullValue());
assertThat(stateMachine.getId(), nullValue());
stateMachine = persister.restore(stateMachine, "xxx2");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine = stateMachineFactory.getStateMachine();
assertThat(stateMachine, notNullValue());
assertThat(stateMachine.getId(), nullValue());
stateMachine = persister.restore(stateMachine, "xxx3");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsNotEnteredJoinStates() throws Exception {
context.register(Config1.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = stateMachineFactory.getStateMachine();
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsNotEnteredJoinStatesRestoreTwice() throws Exception {
context.register(Config1.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = stateMachineFactory.getStateMachine();
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsPartialEnteredJoinStates() throws Exception {
context.register(Config1.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsPartialEnteredJoinStatesRestoreTwice() throws Exception {
context.register(Config1.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsNotEnteredJoinStatesWithEnds() throws Exception {
context.register(Config2.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = stateMachineFactory.getStateMachine();
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsNotEnteredJoinStatesRestoreTwiceWithEnds() throws Exception {
context.register(Config2.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = stateMachineFactory.getStateMachine();
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsPartialEnteredJoinStatesWithEnds() throws Exception {
context.register(Config2.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
public void testJoinAfterPersistRegionsPartialEnteredJoinStatesRestoreTwiceWithEnds() throws Exception {
context.register(Config2.class);
context.refresh();
@SuppressWarnings("unchecked")
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
StateMachine<TestStates, TestEvents> stateMachine = stateMachineFactory.getStateMachine("testid");
stateMachine.start();
stateMachine.sendEvent(TestEvents.E1);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
stateMachine.sendEvent(TestEvents.E2);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
persister.persist(stateMachine, "xxx1");
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
stateMachine = persister.restore(stateMachine, "xxx1");
assertThat(stateMachine.getId(), is("testid"));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
stateMachine.sendEvent(TestEvents.E3);
assertThat(stateMachine.getState().getIds(), containsInAnyOrder(TestStates.S4));
}
@Test
@SuppressWarnings("unchecked")
public void testJoinFromSuperAfterPersistRegions() throws Exception {
context.register(Config3.class);
context.refresh();
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
StateMachine<TestStates, TestEvents> machine = stateMachineFactory.getStateMachine("testid");
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
TestListener listener = new TestListener();
machine.addStateListener(listener);
listener.reset(1);
assertThat(machine, notNullValue());
machine.start();
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(1));
listener.reset(3);
machine.sendEvent(TestEvents.E1);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(3));
assertThat(machine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
persister.persist(machine, "xxx1");
machine = persister.restore(machine, "xxx1");
listener.reset(1);
machine.sendEvent(TestEvents.E2);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(1));
assertThat(machine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
listener.reset(2);
machine.sendEvent(TestEvents.E3);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(2));
assertThat(machine.getState().getIds(), contains(TestStates.S4));
// try fresh machine
machine = stateMachineFactory.getStateMachine("testid");
machine = persister.restore(machine, "xxx1");
machine.addStateListener(listener);
listener.reset(1);
machine.sendEvent(TestEvents.E2);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(1));
assertThat(machine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
listener.reset(2);
machine.sendEvent(TestEvents.E3);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(2));
assertThat(machine.getState().getIds(), contains(TestStates.S4));
}
@Test
@SuppressWarnings("unchecked")
public void testJoinFromSuperAfterPersistRegionsPartial() throws Exception {
context.register(Config3.class);
context.refresh();
StateMachineFactory<TestStates, TestEvents> stateMachineFactory = context.getBean(StateMachineFactory.class);
StateMachine<TestStates, TestEvents> machine = stateMachineFactory.getStateMachine("testid");
InMemoryStateMachinePersist stateMachinePersist = new InMemoryStateMachinePersist();
StateMachinePersister<TestStates, TestEvents, String> persister = new DefaultStateMachinePersister<>(stateMachinePersist);
TestListener listener = new TestListener();
machine.addStateListener(listener);
listener.reset(1);
assertThat(machine, notNullValue());
machine.start();
assertPseudoStatesHaveOneListener(machine);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(1));
listener.reset(3);
machine.sendEvent(TestEvents.E1);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(3));
assertThat(machine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S20, TestStates.S30));
listener.reset(1);
machine.sendEvent(TestEvents.E2);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(1));
assertThat(machine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
persister.persist(machine, "xxx1");
machine = persister.restore(machine, "xxx1");
assertPseudoStatesHaveOneListener(machine);
listener.reset(2);
machine.sendEvent(TestEvents.E3);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(2));
assertThat(machine.getState().getIds(), contains(TestStates.S4));
machine = persister.restore(machine, "xxx1");
assertPseudoStatesHaveOneListener(machine);
listener.reset(2);
machine.sendEvent(TestEvents.E3);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(2));
assertThat(machine.getState().getIds(), contains(TestStates.S4));
// try fresh machine
machine = stateMachineFactory.getStateMachine("testid");
machine = persister.restore(machine, "xxx1");
machine.addStateListener(listener);
assertThat(machine.getState().getIds(), containsInAnyOrder(TestStates.S2, TestStates.S21, TestStates.S30));
listener.reset(2);
machine.sendEvent(TestEvents.E3);
assertThat(listener.stateChangedLatch.await(2, TimeUnit.SECONDS), is(true));
assertThat(listener.stateChangedCount, is(2));
assertThat(machine.getState().getIds(), contains(TestStates.S4));
assertPseudoStatesHaveOneListener(machine);
}
private void assertPseudoStatesHaveOneListener(Object machine) throws Exception {
Collection<State<?,?>> states = TestUtils.readField("states", machine);
for (State<?,?> s : states) {
PseudoState<?, ?> ps = s.getPseudoState();
if (ps != null) {
CompositePseudoStateListener<?, ?> pseudoStateListener = TestUtils.readField("pseudoStateListener", ps);
OrderedComposite<?> listeners = TestUtils.readField("listeners", pseudoStateListener);
List<?> list = TestUtils.readField("list", listeners);
assertThat(list.size(), is(1));
}
}
}
@Configuration
@EnableStateMachineFactory
static class Config1 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.SI)
.state(TestStates.SI)
.fork(TestStates.S1)
.state(TestStates.S2)
.end(TestStates.SF)
.join(TestStates.S3)
.state(TestStates.S4)
.and()
.withStates()
.parent(TestStates.S2)
.initial(TestStates.S20)
.state(TestStates.S20)
.state(TestStates.S21)
.and()
.withStates()
.parent(TestStates.S2)
.initial(TestStates.S30)
.state(TestStates.S30)
.state(TestStates.S31);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.SI)
.target(TestStates.S2)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.S20)
.target(TestStates.S21)
.event(TestEvents.E2)
.and()
.withExternal()
.source(TestStates.S30)
.target(TestStates.S31)
.event(TestEvents.E3)
.and()
.withFork()
.source(TestStates.S1)
.target(TestStates.S20)
.target(TestStates.S30)
.and()
.withJoin()
.source(TestStates.S21)
.source(TestStates.S31)
.target(TestStates.S3)
.and()
.withExternal()
.source(TestStates.S3)
.target(TestStates.S4);
}
}
@Configuration
@EnableStateMachineFactory
static class Config2 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.SI)
.state(TestStates.SI)
.fork(TestStates.S1)
.state(TestStates.S2)
.end(TestStates.SF)
.join(TestStates.S3)
.end(TestStates.S4)
.and()
.withStates()
.parent(TestStates.S2)
.initial(TestStates.S20)
.state(TestStates.S20)
.end(TestStates.S21)
.and()
.withStates()
.parent(TestStates.S2)
.initial(TestStates.S30)
.state(TestStates.S30)
.end(TestStates.S31);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.SI)
.target(TestStates.S2)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.S20)
.target(TestStates.S21)
.event(TestEvents.E2)
.and()
.withExternal()
.source(TestStates.S30)
.target(TestStates.S31)
.event(TestEvents.E3)
.and()
.withFork()
.source(TestStates.S1)
.target(TestStates.S20)
.target(TestStates.S30)
.and()
.withJoin()
.source(TestStates.S21)
.source(TestStates.S31)
.target(TestStates.S3)
.and()
.withExternal()
.source(TestStates.S3)
.target(TestStates.S4);
}
}
@Configuration
@EnableStateMachineFactory
static class Config3 extends EnumStateMachineConfigurerAdapter<TestStates, TestEvents> {
@Override
public void configure(StateMachineStateConfigurer<TestStates, TestEvents> states) throws Exception {
states
.withStates()
.initial(TestStates.SI)
.state(TestStates.S2)
.join(TestStates.S3)
.state(TestStates.S4)
.and()
.withStates()
.parent(TestStates.S2)
.initial(TestStates.S20)
.end(TestStates.S21)
.and()
.withStates()
.parent(TestStates.S2)
.initial(TestStates.S30)
.end(TestStates.S31);
}
@Override
public void configure(StateMachineTransitionConfigurer<TestStates, TestEvents> transitions) throws Exception {
transitions
.withExternal()
.source(TestStates.SI)
.target(TestStates.S2)
.event(TestEvents.E1)
.and()
.withExternal()
.source(TestStates.S20)
.target(TestStates.S21)
.event(TestEvents.E2)
.and()
.withExternal()
.source(TestStates.S30)
.target(TestStates.S31)
.event(TestEvents.E3)
.and()
.withJoin()
.source(TestStates.S2)
.target(TestStates.S3)
.and()
.withExternal()
.source(TestStates.S3)
.target(TestStates.S4)
.and()
.withExternal()
.source(TestStates.S4)
.target(TestStates.SI)
.event(TestEvents.E4);
}
}
private static class TestListener extends StateMachineListenerAdapter<TestStates, TestEvents> {
volatile CountDownLatch stateChangedLatch = new CountDownLatch(1);
volatile CountDownLatch transitionLatch = new CountDownLatch(0);
volatile int stateChangedCount = 0;
final List<Transition<TestStates, TestEvents>> transitions = new ArrayList<Transition<TestStates,TestEvents>>();
final List<State<TestStates, TestEvents>> tos = new ArrayList<>();
@Override
public void stateChanged(State<TestStates, TestEvents> from, State<TestStates, TestEvents> to) {
tos.add(to);
stateChangedCount++;
stateChangedLatch.countDown();
}
@Override
public void transition(Transition<TestStates, TestEvents> transition) {
transitions.add(transition);
transitionLatch.countDown();
}
public void reset(int c1) {
reset(c1, 0);
}
public void reset(int c1, int c2) {
stateChangedLatch = new CountDownLatch(c1);
transitionLatch = new CountDownLatch(c2);
stateChangedCount = 0;
transitions.clear();
tos.clear();
}
}
static class InMemoryStateMachinePersist implements StateMachinePersist<TestStates, TestEvents, String> {
private final HashMap<String, StateMachineContext<TestStates, TestEvents>> contexts = new HashMap<>();
@Override
public void write(StateMachineContext<TestStates, TestEvents> context, String contextObj) throws Exception {
contexts.put(contextObj, context);
}
@Override
public StateMachineContext<TestStates, TestEvents> read(String contextObj) throws Exception {
return contexts.get(contextObj);
}
}
}