1/* 2 * Copyright 2007 the original author or authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package org.mockftpserver.stub; 17 18import org.apache.commons.net.ftp.FTPClient; 19import org.apache.log4j.Logger; 20import org.mockftpserver.core.command.Command; 21import org.mockftpserver.core.command.CommandNames; 22import org.mockftpserver.core.command.InvocationRecord; 23import org.mockftpserver.core.session.Session; 24import org.mockftpserver.stub.StubFtpServer; 25import org.mockftpserver.stub.command.AbstractStubCommandHandler; 26import org.mockftpserver.test.AbstractTest; 27import org.mockftpserver.test.IntegrationTest; 28import org.mockftpserver.test.PortTestUtil; 29 30/** 31 * StubFtpServer tests for multiple FTP clients using the Apache Jakarta Commons Net FTP client. 32 * 33 * @version $Revision$ - $Date$ 34 * 35 * @author Chris Mair 36 */ 37public final class StubFtpServer_MultipleClientsIntegrationTest extends AbstractTest implements 38 IntegrationTest { 39 40 private static final Logger LOG = Logger.getLogger(StubFtpServer_MultipleClientsIntegrationTest.class); 41 private static final String SERVER = "localhost"; 42 43 // Custom CommandHandler for PWD so that we can verify unique session-specific responses. 44 // Send back the hashCode for the Session as the reply text. 45 private static class CustomPwdCommandHandler extends AbstractStubCommandHandler { 46 protected void handleCommand(Command command, Session session, InvocationRecord invocationRecord) throws Exception { 47 String replyText = quotes(Integer.toString(session.hashCode())); 48 sendReply(session, 257, null, replyText, null); 49 } 50 } 51 52 private StubFtpServer stubFtpServer; 53 private FTPClient ftpClient1; 54 private FTPClient ftpClient2; 55 private FTPClient ftpClient3; 56 57 /** 58 * Test that multiple simultaneous clients can connect and establish sessions. 59 */ 60 public void testMultipleClients() throws Exception { 61 62 // Connect from client 1 63 LOG.info("connect() to ftpClient1"); 64 ftpClient1.connect(SERVER, PortTestUtil.getFtpServerControlPort()); 65 String sessionId1 = ftpClient1.printWorkingDirectory(); 66 LOG.info("PWD(1) reply =[" + sessionId1 + "]"); 67 68 // Connect from client 2 69 LOG.info("connect() to ftpClient2"); 70 ftpClient2.connect(SERVER, PortTestUtil.getFtpServerControlPort()); 71 String sessionId2 = ftpClient2.printWorkingDirectory(); 72 LOG.info("PWD(2) reply =[" + sessionId2 + "]"); 73 74 // Connect from client 3 75 LOG.info("connect() to ftpClient3"); 76 ftpClient3.connect(SERVER, PortTestUtil.getFtpServerControlPort()); 77 String sessionId3 = ftpClient3.printWorkingDirectory(); 78 LOG.info("PWD(3) reply =[" + sessionId3 + "]"); 79 80 // Make sure all session ids are unique 81 assertNotSame("sessionId1 vs sessionId2", sessionId1, sessionId2); 82 assertNotSame("sessionId2 vs sessionId3", sessionId2, sessionId3); 83 assertNotSame("sessionId1 vs sessionId3", sessionId1, sessionId3); 84 85 // Now make sure that the replies from the existing sessions remain consistent 86 assertEquals("reply from session1", sessionId1, ftpClient1.printWorkingDirectory()); 87 assertEquals("reply from session2", sessionId2, ftpClient2.printWorkingDirectory()); 88 assertEquals("reply from session3", sessionId3, ftpClient3.printWorkingDirectory()); 89 } 90 91 // ------------------------------------------------------------------------- 92 // Test setup and tear-down 93 // ------------------------------------------------------------------------- 94 95 /** 96 * Perform initialization before each test 97 * @see org.mockftpserver.test.AbstractTest#setUp() 98 */ 99 protected void setUp() throws Exception { 100 super.setUp(); 101 102 stubFtpServer = new StubFtpServer(); 103 stubFtpServer.setServerControlPort(PortTestUtil.getFtpServerControlPort()); 104 stubFtpServer.setCommandHandler(CommandNames.PWD, new CustomPwdCommandHandler()); 105 stubFtpServer.start(); 106 107 ftpClient1 = new FTPClient(); 108 ftpClient2 = new FTPClient(); 109 ftpClient3 = new FTPClient(); 110 111 ftpClient1.setDefaultTimeout(1000); 112 ftpClient2.setDefaultTimeout(1000); 113 ftpClient3.setDefaultTimeout(1000); 114 } 115 116 /** 117 * Perform cleanup after each test 118 * @see org.mockftpserver.test.AbstractTest#tearDown() 119 */ 120 protected void tearDown() throws Exception { 121 super.tearDown(); 122 123 LOG.info("Cleaning up..."); 124 if (ftpClient1.isConnected()) { 125 ftpClient1.disconnect(); 126 } 127 if (ftpClient2.isConnected()) { 128 ftpClient2.disconnect(); 129 } 130 if (ftpClient3.isConnected()) { 131 ftpClient3.disconnect(); 132 } 133 134 stubFtpServer.stop(); 135 } 136 137} 138