@Test
public void testFailoverGood() throws Exception {
AbstractClientConnectionFactory factory1 = mock(AbstractClientConnectionFactory.class);
AbstractClientConnectionFactory factory2 = mock(AbstractClientConnectionFactory.class);
List<AbstractClientConnectionFactory> factories =
new ArrayList<AbstractClientConnectionFactory>();
factories.add(factory1);
factories.add(factory2);
TcpConnectionSupport conn1 = makeMockConnection();
TcpConnectionSupport conn2 = makeMockConnection();
when(factory1.getConnection()).thenReturn(conn1);
when(factory2.getConnection()).thenReturn(conn2);
when(factory1.isActive()).thenReturn(true);
when(factory2.isActive()).thenReturn(true);
doThrow(new IOException("fail")).when(conn1).send(Mockito.any(Message.class));
doAnswer(
new Answer<Object>() {
public Object answer(InvocationOnMock invocation) throws Throwable {
return null;
}
})
.when(conn2)
.send(Mockito.any(Message.class));
FailoverClientConnectionFactory failoverFactory =
new FailoverClientConnectionFactory(factories);
failoverFactory.start();
GenericMessage<String> message = new GenericMessage<String>("foo");
failoverFactory.getConnection().send(message);
Mockito.verify(conn2).send(message);
}
private Socket getSocket(AbstractClientConnectionFactory client) throws Exception {
if (client instanceof TcpNetClientConnectionFactory) {
return TestUtils.getPropertyValue(client.getConnection(), "socket", Socket.class);
} else {
return TestUtils.getPropertyValue(
client.getConnection(), "socketChannel", SocketChannel.class)
.socket();
}
}
@Test
public void testEnlargePool() throws Exception {
AbstractClientConnectionFactory factory = mock(AbstractClientConnectionFactory.class);
when(factory.isRunning()).thenReturn(true);
TcpConnectionSupport mockConn1 = makeMockConnection("conn1");
TcpConnectionSupport mockConn2 = makeMockConnection("conn2");
TcpConnectionSupport mockConn3 = makeMockConnection("conn3");
TcpConnectionSupport mockConn4 = makeMockConnection("conn4");
when(factory.getConnection()).thenReturn(mockConn1, mockConn2, mockConn3, mockConn4);
CachingClientConnectionFactory cachingFactory = new CachingClientConnectionFactory(factory, 2);
cachingFactory.start();
TcpConnection conn1 = cachingFactory.getConnection();
TcpConnection conn2 = cachingFactory.getConnection();
assertNotSame(conn1, conn2);
Semaphore semaphore =
TestUtils.getPropertyValue(
TestUtils.getPropertyValue(cachingFactory, "pool"), "permits", Semaphore.class);
assertEquals(0, semaphore.availablePermits());
cachingFactory.setPoolSize(4);
TcpConnection conn3 = cachingFactory.getConnection();
TcpConnection conn4 = cachingFactory.getConnection();
assertEquals(0, semaphore.availablePermits());
conn1.close();
conn1.close();
conn2.close();
conn3.close();
conn4.close();
assertEquals(4, semaphore.availablePermits());
}
@Test(expected = IOException.class)
public void testFailoverConnectNone() throws Exception {
AbstractClientConnectionFactory factory1 = mock(AbstractClientConnectionFactory.class);
AbstractClientConnectionFactory factory2 = mock(AbstractClientConnectionFactory.class);
List<AbstractClientConnectionFactory> factories =
new ArrayList<AbstractClientConnectionFactory>();
factories.add(factory1);
factories.add(factory2);
when(factory1.getConnection()).thenThrow(new IOException("fail"));
when(factory2.getConnection()).thenThrow(new IOException("fail"));
when(factory1.isActive()).thenReturn(true);
when(factory2.isActive()).thenReturn(true);
FailoverClientConnectionFactory failoverFactory =
new FailoverClientConnectionFactory(factories);
failoverFactory.start();
GenericMessage<String> message = new GenericMessage<String>("foo");
failoverFactory.getConnection().send(message);
}
private CachingClientConnectionFactory createCCCFWith2Connections(
TcpConnectionSupport conn1, TcpConnectionSupport conn2) throws Exception {
AbstractClientConnectionFactory factory = mock(AbstractClientConnectionFactory.class);
when(factory.isRunning()).thenReturn(true);
when(factory.getConnection()).thenReturn(conn1, conn2);
CachingClientConnectionFactory cccf = new CachingClientConnectionFactory(factory, 1);
cccf.setConnectionWaitTimeout(1);
cccf.start();
return cccf;
}
@Test
public void testOkAgainAfterCompleteFailure() throws Exception {
AbstractClientConnectionFactory factory1 = mock(AbstractClientConnectionFactory.class);
AbstractClientConnectionFactory factory2 = mock(AbstractClientConnectionFactory.class);
List<AbstractClientConnectionFactory> factories =
new ArrayList<AbstractClientConnectionFactory>();
factories.add(factory1);
factories.add(factory2);
TcpConnectionSupport conn1 = makeMockConnection();
TcpConnectionSupport conn2 = makeMockConnection();
when(factory1.getConnection()).thenReturn(conn1);
when(factory2.getConnection()).thenReturn(conn2);
when(factory1.isActive()).thenReturn(true);
when(factory2.isActive()).thenReturn(true);
final AtomicInteger failCount = new AtomicInteger();
doAnswer(
new Answer<Object>() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
if (failCount.incrementAndGet() < 3) {
throw new IOException("fail");
}
return null;
}
})
.when(conn1)
.send(Mockito.any(Message.class));
doThrow(new IOException("fail")).when(conn2).send(Mockito.any(Message.class));
FailoverClientConnectionFactory failoverFactory =
new FailoverClientConnectionFactory(factories);
failoverFactory.start();
GenericMessage<String> message = new GenericMessage<String>("foo");
try {
failoverFactory.getConnection().send(message);
fail("ExpectedFailure");
} catch (IOException e) {
}
failoverFactory.getConnection().send(message);
Mockito.verify(conn2).send(message);
Mockito.verify(conn1, times(3)).send(message);
}
@Test(expected = IOException.class)
public void testFailoverAllDead() throws Exception {
AbstractClientConnectionFactory factory1 = mock(AbstractClientConnectionFactory.class);
AbstractClientConnectionFactory factory2 = mock(AbstractClientConnectionFactory.class);
List<AbstractClientConnectionFactory> factories =
new ArrayList<AbstractClientConnectionFactory>();
factories.add(factory1);
factories.add(factory2);
TcpConnectionSupport conn1 = makeMockConnection();
TcpConnectionSupport conn2 = makeMockConnection();
when(factory1.getConnection()).thenReturn(conn1);
when(factory2.getConnection()).thenReturn(conn2);
when(factory1.isActive()).thenReturn(true);
when(factory2.isActive()).thenReturn(true);
doThrow(new IOException("fail")).when(conn1).send(Mockito.any(Message.class));
doThrow(new IOException("fail")).when(conn2).send(Mockito.any(Message.class));
FailoverClientConnectionFactory failoverFactory =
new FailoverClientConnectionFactory(factories);
failoverFactory.start();
GenericMessage<String> message = new GenericMessage<String>("foo");
failoverFactory.getConnection().send(message);
Mockito.verify(conn2).send(message);
}
@Test
public void testFailoverAllDeadButOriginalOkAgain() throws Exception {
AbstractClientConnectionFactory factory1 = mock(AbstractClientConnectionFactory.class);
AbstractClientConnectionFactory factory2 = mock(AbstractClientConnectionFactory.class);
List<AbstractClientConnectionFactory> factories =
new ArrayList<AbstractClientConnectionFactory>();
factories.add(factory1);
factories.add(factory2);
TcpConnectionSupport conn1 = makeMockConnection();
TcpConnectionSupport conn2 = makeMockConnection();
when(factory1.getConnection()).thenReturn(conn1);
when(factory2.getConnection()).thenReturn(conn2);
when(factory1.isActive()).thenReturn(true);
when(factory2.isActive()).thenReturn(true);
final AtomicBoolean failedOnce = new AtomicBoolean();
doAnswer(
new Answer<Object>() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
if (!failedOnce.get()) {
failedOnce.set(true);
throw new IOException("fail");
}
return null;
}
})
.when(conn1)
.send(Mockito.any(Message.class));
doThrow(new IOException("fail")).when(conn2).send(Mockito.any(Message.class));
FailoverClientConnectionFactory failoverFactory =
new FailoverClientConnectionFactory(factories);
failoverFactory.start();
GenericMessage<String> message = new GenericMessage<String>("foo");
failoverFactory.getConnection().send(message);
Mockito.verify(conn2).send(message);
Mockito.verify(conn1, times(2)).send(message);
}
@Test
public void testStop() throws Exception {
AbstractClientConnectionFactory factory = mock(AbstractClientConnectionFactory.class);
when(factory.isRunning()).thenReturn(true);
TcpConnectionSupport mockConn1 = makeMockConnection("conn1");
TcpConnectionSupport mockConn2 = makeMockConnection("conn2");
int i = 3;
when(factory.getConnection())
.thenReturn(mockConn1)
.thenReturn(mockConn2)
.thenReturn(makeMockConnection("conn" + (i++)));
CachingClientConnectionFactory cachingFactory = new CachingClientConnectionFactory(factory, 2);
cachingFactory.start();
TcpConnection conn1 = cachingFactory.getConnection();
assertEquals("Cached:" + mockConn1.toString(), conn1.toString());
conn1.close();
conn1 = cachingFactory.getConnection();
assertEquals("Cached:" + mockConn1.toString(), conn1.toString());
TcpConnection conn2 = cachingFactory.getConnection();
assertEquals("Cached:" + mockConn2.toString(), conn2.toString());
cachingFactory.stop();
Answer<Object> answer =
new Answer<Object>() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
return null;
}
};
doAnswer(answer).when(mockConn1).close();
doAnswer(answer).when(mockConn2).close();
when(factory.isRunning()).thenReturn(false);
conn1.close();
conn2.close();
verify(mockConn1).close();
verify(mockConn2).close();
when(mockConn1.isOpen()).thenReturn(false);
when(mockConn2.isOpen()).thenReturn(false);
when(factory.isRunning()).thenReturn(true);
TcpConnection conn3 = cachingFactory.getConnection();
assertNotSame(
TestUtils.getPropertyValue(conn1, "theConnection"),
TestUtils.getPropertyValue(conn3, "theConnection"));
assertNotSame(
TestUtils.getPropertyValue(conn2, "theConnection"),
TestUtils.getPropertyValue(conn3, "theConnection"));
}
@Test
public void testReuse() throws Exception {
AbstractClientConnectionFactory factory = mock(AbstractClientConnectionFactory.class);
when(factory.isRunning()).thenReturn(true);
TcpConnectionSupport mockConn1 = makeMockConnection("conn1");
TcpConnectionSupport mockConn2 = makeMockConnection("conn2");
when(factory.getConnection()).thenReturn(mockConn1).thenReturn(mockConn2);
CachingClientConnectionFactory cachingFactory = new CachingClientConnectionFactory(factory, 2);
cachingFactory.start();
TcpConnection conn1 = cachingFactory.getConnection();
assertEquals("Cached:" + mockConn1.toString(), conn1.toString());
conn1.close();
conn1 = cachingFactory.getConnection();
assertEquals("Cached:" + mockConn1.toString(), conn1.toString());
TcpConnection conn2 = cachingFactory.getConnection();
assertEquals("Cached:" + mockConn2.toString(), conn2.toString());
conn1.close();
conn2.close();
}
@Test
public void testReducePool() throws Exception {
AbstractClientConnectionFactory factory = mock(AbstractClientConnectionFactory.class);
when(factory.isRunning()).thenReturn(true);
TcpConnectionSupport mockConn1 = makeMockConnection("conn1", true);
TcpConnectionSupport mockConn2 = makeMockConnection("conn2", true);
TcpConnectionSupport mockConn3 = makeMockConnection("conn3", true);
TcpConnectionSupport mockConn4 = makeMockConnection("conn4", true);
when(factory.getConnection())
.thenReturn(mockConn1)
.thenReturn(mockConn2)
.thenReturn(mockConn3)
.thenReturn(mockConn4);
CachingClientConnectionFactory cachingFactory = new CachingClientConnectionFactory(factory, 4);
cachingFactory.start();
TcpConnection conn1 = cachingFactory.getConnection();
TcpConnection conn2 = cachingFactory.getConnection();
TcpConnection conn3 = cachingFactory.getConnection();
TcpConnection conn4 = cachingFactory.getConnection();
Semaphore semaphore =
TestUtils.getPropertyValue(
TestUtils.getPropertyValue(cachingFactory, "pool"), "permits", Semaphore.class);
assertEquals(0, semaphore.availablePermits());
conn1.close();
assertEquals(1, semaphore.availablePermits());
cachingFactory.setPoolSize(2);
assertEquals(0, semaphore.availablePermits());
assertEquals(3, cachingFactory.getActiveCount());
conn2.close();
assertEquals(0, semaphore.availablePermits());
assertEquals(2, cachingFactory.getActiveCount());
conn3.close();
assertEquals(1, cachingFactory.getActiveCount());
assertEquals(1, cachingFactory.getIdleCount());
conn4.close();
assertEquals(2, semaphore.availablePermits());
assertEquals(0, cachingFactory.getActiveCount());
assertEquals(2, cachingFactory.getIdleCount());
verify(mockConn1).close();
verify(mockConn2).close();
}
private void testGWPropagatesSocketCloseGuts(final int port, AbstractClientConnectionFactory ccf)
throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
final AtomicReference<String> lastReceived = new AtomicReference<String>();
final CountDownLatch serverLatch = new CountDownLatch(1);
Executors.newSingleThreadExecutor()
.execute(
new Runnable() {
public void run() {
try {
ServerSocket server = ServerSocketFactory.getDefault().createServerSocket(port);
latch.countDown();
int i = 0;
while (!done.get()) {
Socket socket = server.accept();
i++;
while (!socket.isClosed()) {
try {
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
String request = (String) ois.readObject();
logger.debug("Read " + request + " closing socket");
socket.close();
lastReceived.set(request);
serverLatch.countDown();
} catch (IOException e) {
socket.close();
}
}
}
} catch (Exception e) {
if (!done.get()) {
e.printStackTrace();
}
}
}
});
assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
final TcpOutboundGateway gateway = new TcpOutboundGateway();
gateway.setConnectionFactory(ccf);
gateway.setRequestTimeout(Integer.MAX_VALUE);
QueueChannel replyChannel = new QueueChannel();
gateway.setRequiresReply(true);
gateway.setOutputChannel(replyChannel);
gateway.setRemoteTimeout(5000);
gateway.afterPropertiesSet();
gateway.start();
try {
gateway.handleMessage(MessageBuilder.withPayload("Test").build());
fail("expected failure");
} catch (Exception e) {
assertTrue(e.getCause() instanceof EOFException);
}
assertEquals(0, TestUtils.getPropertyValue(gateway, "pendingReplies", Map.class).size());
Message<?> reply = replyChannel.receive(0);
assertNull(reply);
done.set(true);
ccf.getConnection();
}
@Test
public void testFailoverCached() throws Exception {
final int port = SocketUtils.findAvailableServerSocket();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
final CountDownLatch serverLatch = new CountDownLatch(1);
Executors.newSingleThreadExecutor()
.execute(
new Runnable() {
public void run() {
try {
ServerSocket server = ServerSocketFactory.getDefault().createServerSocket(port);
latch.countDown();
while (!done.get()) {
Socket socket = server.accept();
while (!socket.isClosed()) {
try {
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
String request = (String) ois.readObject();
logger.debug("Read " + request);
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
oos.writeObject("bar");
logger.debug("Replied to " + request);
serverLatch.countDown();
} catch (IOException e) {
logger.debug("error on write " + e.getClass().getSimpleName());
socket.close();
}
}
}
} catch (Exception e) {
if (!done.get()) {
e.printStackTrace();
}
}
}
});
assertTrue(latch.await(10000, TimeUnit.MILLISECONDS));
// Cache
AbstractClientConnectionFactory factory1 = mock(AbstractClientConnectionFactory.class);
TcpConnectionSupport mockConn1 = makeMockConnection();
when(factory1.getConnection()).thenReturn(mockConn1);
doThrow(new IOException("fail")).when(mockConn1).send(Mockito.any(Message.class));
CachingClientConnectionFactory cachingFactory1 =
new CachingClientConnectionFactory(factory1, 1);
AbstractClientConnectionFactory factory2 = new TcpNetClientConnectionFactory("localhost", port);
factory2.setSerializer(new DefaultSerializer());
factory2.setDeserializer(new DefaultDeserializer());
factory2.setSoTimeout(10000);
factory2.setSingleUse(false);
CachingClientConnectionFactory cachingFactory2 =
new CachingClientConnectionFactory(factory2, 1);
// Failover
List<AbstractClientConnectionFactory> factories =
new ArrayList<AbstractClientConnectionFactory>();
factories.add(cachingFactory1);
factories.add(cachingFactory2);
FailoverClientConnectionFactory failoverFactory =
new FailoverClientConnectionFactory(factories);
failoverFactory.start();
TcpOutboundGateway gateway = new TcpOutboundGateway();
gateway.setConnectionFactory(failoverFactory);
PollableChannel outputChannel = new QueueChannel();
gateway.setOutputChannel(outputChannel);
gateway.afterPropertiesSet();
gateway.start();
GenericMessage<String> message = new GenericMessage<String>("foo");
gateway.handleMessage(message);
Message<?> reply = outputChannel.receive(0);
assertNotNull(reply);
assertEquals("bar", reply.getPayload());
done.set(true);
gateway.stop();
verify(mockConn1).send(Mockito.any(Message.class));
}