/*
* Quasar: lightweight threads and actors for the JVM.
* Copyright (c) 2013-2015, Parallel Universe Software Co. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 3.0
* as published by the Free Software Foundation.
*/
package co.paralleluniverse.actors.behaviors;
import co.paralleluniverse.actors.BasicActor;
import co.paralleluniverse.actors.Actor;
import co.paralleluniverse.actors.ActorRegistry;
import co.paralleluniverse.actors.LocalActor;
import co.paralleluniverse.actors.MailboxConfig;
import co.paralleluniverse.common.test.TestUtil;
import co.paralleluniverse.common.util.Exceptions;
import co.paralleluniverse.fibers.Fiber;
import co.paralleluniverse.fibers.FiberFactory;
import co.paralleluniverse.fibers.FiberForkJoinScheduler;
import co.paralleluniverse.fibers.FiberScheduler;
import co.paralleluniverse.fibers.SuspendExecution;
import co.paralleluniverse.fibers.Suspendable;
import co.paralleluniverse.strands.Strand;
import co.paralleluniverse.strands.channels.Channels;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicInteger;
import static org.hamcrest.CoreMatchers.*;
import org.junit.After;
import static org.junit.Assert.*;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestName;
import org.junit.rules.TestRule;
/**
* These tests are also good tests for sendSync, as they test sendSync (and receive) from both fibers and threads.
*
* @author pron
*/
public class ProxyServerTest {
@Rule
public TestName name = new TestName();
@Rule
public TestRule watchman = TestUtil.WATCHMAN;
@After
public void tearDown() {
ActorRegistry.clear();
}
static final MailboxConfig mailboxConfig = new MailboxConfig(10, Channels.OverflowPolicy.THROW);
private FiberFactory factory;
private FiberScheduler scheduler;
public ProxyServerTest() {
factory = scheduler = new FiberForkJoinScheduler("test", 4, null, false);
}
private Server<?, ?, ?> spawnServer(boolean callOnVoidMethods, Object target) {
return new ProxyServerActor("server", callOnVoidMethods, target).spawn(factory);
}
private <T extends Actor<Message, V>, Message, V> T spawnActor(T actor) {
Fiber fiber = new Fiber(scheduler, actor);
fiber.setUncaughtExceptionHandler(new Strand.UncaughtExceptionHandler() {
@Override
public void uncaughtException(Strand s, Throwable e) {
e.printStackTrace();
throw Exceptions.rethrow(e);
}
});
fiber.start();
return actor;
}
@Suspendable
public static interface A {
int foo(String str, int x); // throws SuspendExecution;
void bar(int x); // throws SuspendExecution;
}
@Test
public void testShutdown() throws Exception {
final Server<?, ?, ?> a = spawnServer(false, new A() {
public int foo(String str, int x) {
return str.length() + x;
}
public void bar(int x) {
throw new UnsupportedOperationException();
}
});
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void whenCalledThenResultIsReturned() throws Exception {
final Server<?, ?, ?> a = spawnServer(false, new A() {
@Suspendable
public int foo(String str, int x) {
try {
Strand.sleep(50);
return str.length() + x;
} catch (InterruptedException e) {
throw new RuntimeException(e);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
public void bar(int x) {
throw new UnsupportedOperationException();
}
});
Actor<?, Integer> actor = spawnActor(new BasicActor<Object, Integer>(mailboxConfig) {
protected Integer doRun() throws SuspendExecution, InterruptedException {
return ((A) a).foo("hello", 2);
}
});
int res = actor.get();
assertThat(res, is(7));
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void whenCalledFromThreadThenResultIsReturned() throws Exception {
final Server<?, ?, ?> a = spawnServer(false, new A() {
@Suspendable
public int foo(String str, int x) {
try {
Strand.sleep(50);
return str.length() + x;
} catch (InterruptedException e) {
throw new RuntimeException(e);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
public void bar(int x) {
throw new UnsupportedOperationException();
}
});
int res = ((A) a).foo("hello", 2);
assertThat(res, is(7));
((A) a).bar(3);
res = ((A) a).foo("hello", 2);
assertThat(res, is(7));
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void whenHandleCallThrowsExceptionThenItPropagatesToCaller() throws Exception {
final Server<?, ?, ?> a = spawnServer(false, new A() {
public int foo(String str, int x) {
throw new RuntimeException("my exception");
}
public void bar(int x) {
throw new UnsupportedOperationException();
}
});
Actor<?, Void> actor = spawnActor(new BasicActor<Object, Void>(mailboxConfig) {
protected Void doRun() throws SuspendExecution, InterruptedException {
try {
int res = ((A) a).foo("hello", 2);
fail();
} catch (RuntimeException e) {
e.printStackTrace();
assertThat(e.getMessage(), equalTo("my exception"));
}
return null;
}
});
actor.join();
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void whenHandleCallThrowsExceptionThenItPropagatesToThreadCaller() throws Exception {
final Server<?, ?, ?> a = spawnServer(false, new A() {
public int foo(String str, int x) {
throw new RuntimeException("my exception");
}
public void bar(int x) {
throw new UnsupportedOperationException();
}
});
try {
int res = ((A) a).foo("hello", 2);
fail();
} catch (RuntimeException e) {
e.printStackTrace();
assertThat(e.getMessage(), equalTo("my exception"));
}
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void testCast() throws Exception {
final AtomicInteger called = new AtomicInteger(0);
final Server<?, ?, ?> a = spawnServer(false, new A() {
public int foo(String str, int x) {
throw new UnsupportedOperationException();
}
@Suspendable
public void bar(int x) {
try {
Strand.sleep(100);
called.set(x);
} catch (InterruptedException e) {
throw new RuntimeException(e);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
});
((A) a).bar(15);
assertThat(called.get(), is(0));
Thread.sleep(200);
assertThat(called.get(), is(15));
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void testCallOnVoidMethod() throws Exception {
final AtomicInteger called = new AtomicInteger(0);
final Server<?, ?, ?> a = spawnServer(true, new A() {
public int foo(String str, int x) {
throw new UnsupportedOperationException();
}
@Suspendable
public void bar(int x) {
try {
Strand.sleep(100);
called.set(x);
} catch (InterruptedException e) {
throw new RuntimeException(e);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
});
((A) a).bar(15);
assertThat(called.get(), is(15));
a.shutdown();
LocalActor.join(a, 100, TimeUnit.MILLISECONDS);
}
@Test
public void whenCalledAndTimeoutThenThrowTimeout() throws Exception {
final Server<?, ?, ?> a = spawnServer(false, new A() {
@Suspendable
public int foo(String str, int x) {
try {
Strand.sleep(100);
return str.length() + x;
} catch (InterruptedException e) {
throw new RuntimeException(e);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
public void bar(int x) {
throw new UnsupportedOperationException();
}
});
a.setDefaultTimeout(50, TimeUnit.MILLISECONDS);
try {
int res = ((A) a).foo("hello", 2);
fail("res: " + res);
} catch (RuntimeException e) {
assertThat(e.getCause(), instanceOf(TimeoutException.class));
}
a.setDefaultTimeout(200, TimeUnit.MILLISECONDS);
int res = ((A) a).foo("hello", 2);
assertThat(res, is(7));
a.shutdown();
LocalActor.join(a, 500, TimeUnit.MILLISECONDS);
}
@Test
public void testRegistration() throws Exception {
final Server<?, ?, ?> a = new ProxyServerActor("test1", false, new A() {
public int foo(String str, int x) {
throw new UnsupportedOperationException();
}
@Suspendable
public void bar(int x) {
}
}) {
@Override
protected void init() throws InterruptedException, SuspendExecution {
register();
}
}.spawn();
assertTrue((A) a == (A) ActorRegistry.getActor("test1"));
}
}