Author: ron.sigal(a)jboss.com Date: 2008-05-10 17:53:50 -0400 (Sat, 10 May 2008) New Revision: 4166 Added: remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/http/retry/ remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/http/retry/ConnectionRetryTestCase.java Log: JBREM-979: New unit test. Added: remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/http/retry/ConnectionRetryTestCase.java =================================================================== --- remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/http/retry/ConnectionRetryTestCase.java (rev 0) +++ remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/http/retry/ConnectionRetryTestCase.java 2008-05-10 21:53:50 UTC (rev 4166) @@ -0,0 +1,352 @@ +/* +* JBoss, Home of Professional Open Source +* Copyright 2005, JBoss Inc., and individual contributors as indicated +* by the @authors tag. See the copyright.txt in the distribution for a +* full listing of individual contributors. +* +* This is free software; you can redistribute it and/or modify it +* under the terms of the GNU Lesser General Public License as +* published by the Free Software Foundation; either version 2.1 of +* the License, or (at your option) any later version. +* +* This software is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public +* License along with this software; if not, write to the Free +* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA +* 02110-1301 USA, or see the FSF site: http://www.fsf.org. +*/ +package org.jboss.test.remoting.transport.http.retry; + +import java.net.InetAddress; +import java.util.HashMap; +import java.util.Map; + +import javax.management.MBeanServer; + +import junit.framework.TestCase; + +import org.apache.log4j.ConsoleAppender; +import org.apache.log4j.Level; +import org.apache.log4j.Logger; +import org.apache.log4j.PatternLayout; +import org.jboss.logging.XLevel; +import org.jboss.remoting.CannotConnectException; +import org.jboss.remoting.Client; +import org.jboss.remoting.InvocationRequest; +import org.jboss.remoting.InvokerLocator; +import org.jboss.remoting.ServerInvocationHandler; +import org.jboss.remoting.ServerInvoker; +import org.jboss.remoting.callback.Callback; +import org.jboss.remoting.callback.HandleCallbackException; +import org.jboss.remoting.callback.InvokerCallbackHandler; +import org.jboss.remoting.transport.Connector; +import org.jboss.remoting.transport.PortUtil; +import org.jboss.remoting.transport.http.HTTPClientInvoker; + + +public class ConnectionRetryTestCase extends TestCase +{ + private static Logger log = Logger.getLogger(ConnectionRetryTestCase.class); + + private static boolean firstTime = true; + + protected String host; + protected int port; + protected String locatorURI; + protected InvokerLocator serverLocator; + protected Connector connector; + protected TestInvocationHandler invocationHandler; + + + public void setUp() throws Exception + { + if (firstTime) + { + firstTime = false; + Logger.getLogger("org.jboss.remoting").setLevel(XLevel.DEBUG); + Logger.getLogger("org.jboss.test.remoting").setLevel(Level.INFO); + String pattern = "[%d{ABSOLUTE}] [%t] %5p (%F:%L) - %m%n"; + PatternLayout layout = new PatternLayout(pattern); + ConsoleAppender consoleAppender = new ConsoleAppender(layout); + Logger.getRootLogger().addAppender(consoleAppender); + } + } + + + public void tearDown() + { + } + + + public void testDefaultRetries() throws Throwable + { + log.info("entering " + getName()); + + // Start server. + TestInvocationHandler invocationHandler = new TestInvocationHandler(2, 2); + setupServer(invocationHandler); + + // Create client. + InvokerLocator clientLocator = new InvokerLocator(locatorURI); + HashMap clientConfig = new HashMap(); + clientConfig.put(InvokerLocator.FORCE_REMOTE, "true"); + clientConfig.put(ServerInvoker.TIMEOUT, "4000"); + addExtraClientConfig(clientConfig); + Client client = new Client(clientLocator, clientConfig); + client.connect(); + log.info("client is connected"); + + // Test connections. + assertEquals("abc", client.invoke("abc")); + log.info("connection is good"); + + // This call should time out. + boolean success = false; + try + { + client.invoke("xyz"); + } + catch (CannotConnectException e) + { + log.info("got expected exception"); + success = true; + } + + assertTrue("invocation should have thrown exception", success); + client.disconnect(); + shutdownServer(); + log.info(getName() + " PASSES"); + } + + + public void testOneRetry() throws Throwable + { + log.info("entering " + getName()); + + // Start server. + TestInvocationHandler invocationHandler = new TestInvocationHandler(2, 2); + setupServer(invocationHandler); + + // Create client. + InvokerLocator clientLocator = new InvokerLocator(locatorURI); + HashMap clientConfig = new HashMap(); + clientConfig.put(InvokerLocator.FORCE_REMOTE, "true"); + clientConfig.put(HTTPClientInvoker.NUMBER_OF_CALL_ATTEMPTS, "1"); + clientConfig.put(ServerInvoker.TIMEOUT, "4000"); + addExtraClientConfig(clientConfig); + Client client = new Client(clientLocator, clientConfig); + client.connect(); + log.info("client is connected"); + + // Test connections. + assertEquals("abc", client.invoke("abc")); + log.info("connection is good"); + + // This call should time out. + boolean success = false; + try + { + client.invoke("xyz"); + } + catch (CannotConnectException e) + { + log.info("got expected exception"); + success = true; + } + assertTrue("invocation should have thrown exception", success); + + client.disconnect(); + shutdownServer(); + log.info(getName() + " PASSES"); + } + + + public void testTwoRetries() throws Throwable + { + log.info("entering " + getName()); + + // Start server. + TestInvocationHandler invocationHandler = new TestInvocationHandler(2, 2); + setupServer(invocationHandler); + + // Create client. + InvokerLocator clientLocator = new InvokerLocator(locatorURI); + HashMap clientConfig = new HashMap(); + clientConfig.put(InvokerLocator.FORCE_REMOTE, "true"); + clientConfig.put(HTTPClientInvoker.NUMBER_OF_CALL_ATTEMPTS, "2"); + clientConfig.put(ServerInvoker.TIMEOUT, "4000"); + addExtraClientConfig(clientConfig); + Client client = new Client(clientLocator, clientConfig); + client.connect(); + log.info("client is connected"); + + // Test connections. + assertEquals("abc", client.invoke("abc")); + log.info("connection is good"); + + // This call should succeed on the second attempt. + log.info("making second invocation"); + assertEquals("xyz", client.invoke("xyz")); + log.info("second invocation succeeded as expected"); + + client.disconnect(); + shutdownServer(); + log.info(getName() + " PASSES"); + } + + + public void testFiveRetriesAndFail() throws Throwable + { + log.info("entering " + getName()); + + // Start server. + TestInvocationHandler invocationHandler = new TestInvocationHandler(2, 6); + setupServer(invocationHandler); + + // Create client. + InvokerLocator clientLocator = new InvokerLocator(locatorURI); + HashMap clientConfig = new HashMap(); + clientConfig.put(InvokerLocator.FORCE_REMOTE, "true"); + clientConfig.put(HTTPClientInvoker.NUMBER_OF_CALL_ATTEMPTS, "5"); + clientConfig.put(ServerInvoker.TIMEOUT, "4000"); + addExtraClientConfig(clientConfig); + Client client = new Client(clientLocator, clientConfig); + client.connect(); + log.info("client is connected"); + + // Test connections. + assertEquals("abc", client.invoke("abc")); + log.info("connection is good"); + + // This call should time out once and succeed on the second attempt. + log.info("making second invocation"); + boolean success = false; + try + { + client.invoke("xyz"); + } + catch (CannotConnectException e) + { + log.info("got expected exception"); + success = true; + } + assertTrue("invocation should have thrown exception", success); + + client.disconnect(); + shutdownServer(); + log.info(getName() + " PASSES"); + } + + + public void testFiveRetriesThenSucceed() throws Throwable + { + log.info("entering " + getName()); + + // Start server. + TestInvocationHandler invocationHandler = new TestInvocationHandler(2, 5); + setupServer(invocationHandler); + + // Create client. + InvokerLocator clientLocator = new InvokerLocator(locatorURI); + HashMap clientConfig = new HashMap(); + clientConfig.put(InvokerLocator.FORCE_REMOTE, "true"); + clientConfig.put(HTTPClientInvoker.NUMBER_OF_CALL_ATTEMPTS, "5"); + clientConfig.put(ServerInvoker.TIMEOUT, "4000"); + addExtraClientConfig(clientConfig); + Client client = new Client(clientLocator, clientConfig); + client.connect(); + log.info("client is connected"); + + // Test connections. + assertEquals("abc", client.invoke("abc")); + log.info("connection is good"); + + // This call should time out once and succeed on the second attempt. + log.info("making second invocation"); + long start = System.currentTimeMillis(); + assertEquals("xyz", client.invoke("xyz")); + log.info("second invocation succeeded"); + assertTrue(System.currentTimeMillis() - start >= 4 * 4000); + + client.disconnect(); + shutdownServer(); + log.info(getName() + " PASSES"); + } + + + protected String getTransport() + { + return "http"; + } + + + protected void addExtraClientConfig(Map config) {} + protected void addExtraServerConfig(Map config) {} + + + protected void setupServer(ServerInvocationHandler invocationHandler) throws Exception + { + host = InetAddress.getLocalHost().getHostAddress(); + port = PortUtil.findFreePort(host); + locatorURI = getTransport() + "://" + host + ":" + port; + serverLocator = new InvokerLocator(locatorURI); + log.info("Starting remoting server with locator uri of: " + locatorURI); + HashMap config = new HashMap(); + config.put(InvokerLocator.FORCE_REMOTE, "true"); + addExtraServerConfig(config); + connector = new Connector(serverLocator, config); + connector.create(); + connector.addInvocationHandler("test", invocationHandler); + connector.start(); + } + + + protected void shutdownServer() throws Exception + { + if (connector != null) + connector.stop(); + } + + + static class TestInvocationHandler implements ServerInvocationHandler + { + int minDelayAttempt; + int maxDelayAttempt; + int counter; + + public TestInvocationHandler(int minDelayAttempt, int maxDelayAttempt) + { + this.minDelayAttempt = minDelayAttempt; + this.maxDelayAttempt = maxDelayAttempt; + } + + public void addListener(InvokerCallbackHandler callbackHandler) {} + public Object invoke(final InvocationRequest invocation) throws Throwable + { + counter++; + if (minDelayAttempt <= counter && counter <= maxDelayAttempt) + { + log.info("going to sleep, counter = " + counter); + Thread.sleep(8000); + log.info("waking up"); + } + return invocation.getParameter(); + } + public void removeListener(InvokerCallbackHandler callbackHandler) {} + public void setMBeanServer(MBeanServer server) {} + public void setInvoker(ServerInvoker invoker) {} + } + + + static class TestCallbackHandler implements InvokerCallbackHandler + { + public void handleCallback(Callback callback) throws HandleCallbackException + { + log.info("received callback"); + } + } +} \ No newline at end of file