Java tutorial
/** * Copyright 2010 Emmanuel Bourg * Copyright 2012 resthub.org * * 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.resthub.rpc.hessian; import org.resthub.rpc.AMQPProxyFactory; import org.resthub.rpc.serializer.hessian.HessianSerializationHandler; import org.resthub.rpc.service.EchoService; import org.resthub.rpc.service.EchoServiceRPCEndpoint; import org.resthub.rpc.service.FailingService; import org.resthub.rpc.service.FailingServiceRPCEndpoint; import org.springframework.amqp.rabbit.connection.CachingConnectionFactory; import org.testng.annotations.AfterClass; import org.testng.annotations.BeforeClass; import org.testng.annotations.Test; import java.lang.reflect.UndeclaredThrowableException; import java.util.concurrent.TimeoutException; import static org.testng.AssertJUnit.*; public class AMQPProxyTest { protected final String HOSTNAME = "localhost"; protected CachingConnectionFactory connectionFactory; private HessianSerializationHandler serializationHandler = new HessianSerializationHandler(); @BeforeClass(groups = "hessian-serialization") protected void setUp() throws Exception { connectionFactory = new CachingConnectionFactory("localhost", 5672); connectionFactory.setUsername("guest"); connectionFactory.setPassword("guest"); } @AfterClass(groups = "hessian-serialization") protected void tearDown() throws Exception { connectionFactory.destroy(); } @Test(groups = "hessian-serialization") public void testEcho() throws Exception { EchoServiceRPCEndpoint endpoint = new EchoServiceRPCEndpoint(); endpoint.setSerializationHandler(serializationHandler); endpoint.setConnectionFactory(connectionFactory); endpoint.run(); AMQPProxyFactory factory = new AMQPProxyFactory(); factory.setReadTimeout(5000); factory.setConnectionFactory(connectionFactory); factory.setSerializationHandler(serializationHandler); EchoService service = factory.create(EchoService.class); String message = "Hello Hessian!"; assertEquals(message, service.echo(message)); assertEquals(message, service.echo(message)); endpoint.destroy(); } @Test(groups = "hessian-serialization") public void testException() throws Exception { EchoServiceRPCEndpoint endpoint = new EchoServiceRPCEndpoint(); endpoint.setConnectionFactory(connectionFactory); endpoint.setSerializationHandler(serializationHandler); endpoint.run(); AMQPProxyFactory factory = new AMQPProxyFactory(); factory.setReadTimeout(5000); factory.setCompressed(true); factory.setConnectionFactory(connectionFactory); factory.setSerializationHandler(new HessianSerializationHandler()); EchoService service = factory.create(EchoService.class); String message = "Hello Hessian!"; try { service.exception(message); fail("No exception thrown"); } catch (RuntimeException e) { throw e; } catch (Exception e) { assertEquals("Exception message", message, e.getMessage()); } finally { endpoint.destroy(); } } @Test(groups = "hessian-serialization") public void testTimeout() throws Exception { FailingServiceRPCEndpoint endpoint = new FailingServiceRPCEndpoint(); endpoint.setConnectionFactory(connectionFactory); endpoint.setSerializationHandler(serializationHandler); endpoint.run(); AMQPProxyFactory factory = new AMQPProxyFactory(); factory.setReadTimeout(3000); factory.setConnectionFactory(connectionFactory); factory.setSerializationHandler(new HessianSerializationHandler()); FailingService service = factory.create(FailingService.class); try { service.timeout(5000); fail("UndeclaredThrowableException expected"); } catch (UndeclaredThrowableException e) { Throwable cause = e.getCause(); assertTrue(cause instanceof TimeoutException); Thread.sleep(3000); } finally { endpoint.destroy(); } } @Test(groups = "hessian-serialization") public void testSerializationError() throws Exception { FailingServiceRPCEndpoint endpoint = new FailingServiceRPCEndpoint(); endpoint.setConnectionFactory(connectionFactory); endpoint.setSerializationHandler(serializationHandler); endpoint.run(); AMQPProxyFactory factory = new AMQPProxyFactory(); factory.setReadTimeout(5000); factory.setConnectionFactory(connectionFactory); factory.setSerializationHandler(new HessianSerializationHandler()); FailingService service = factory.create(FailingService.class); try { service.getNotSerializable(); fail("IllegalStateException expected"); } catch (IllegalStateException e) { assertTrue(e.getMessage().contains("must implement java.io.Serializable")); } finally { endpoint.destroy(); } } @Test(groups = "hessian-serialization") public void testDoNothing() throws Exception { EchoServiceRPCEndpoint endpoint = new EchoServiceRPCEndpoint(); endpoint.setConnectionFactory(connectionFactory); endpoint.setSerializationHandler(serializationHandler); endpoint.run(); AMQPProxyFactory factory = new AMQPProxyFactory(); factory.setReadTimeout(5000); factory.setConnectionFactory(connectionFactory); factory.setSerializationHandler(new HessianSerializationHandler()); EchoService service = factory.create(EchoService.class); try { service.doNothing(); } catch (Exception e) { throw e; } finally { endpoint.destroy(); } } @Test(groups = "hessian-serialization") public void testError() throws Exception { FailingServiceRPCEndpoint endpoint = new FailingServiceRPCEndpoint(); endpoint.setConnectionFactory(connectionFactory); endpoint.setSerializationHandler(serializationHandler); endpoint.run(); AMQPProxyFactory factory = new AMQPProxyFactory(); factory.setReadTimeout(3000); factory.setConnectionFactory(connectionFactory); factory.setSerializationHandler(new HessianSerializationHandler()); FailingService service = factory.create(FailingService.class); try { service.error(); fail("StackOverflowError expected"); } catch (StackOverflowError e) { //Thread.sleep(3000); } finally { endpoint.destroy(); } } }