| /* |
| * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * |
| * |
| * This unit test checks that closing the channel returned by |
| * System.inheritedChannel closes the underlying network socket. |
| * |
| * The test launches the "echo service" with arguments to instruct the |
| * service to close the channel after it receives a small message. The |
| * service then delays/lingers for 15 seconds before shuting down. To |
| * prove that the close works we check that we see EOF (meaning the |
| * peer has closed the connection) in less than 15 seconds. |
| */ |
| import java.nio.ByteBuffer; |
| import java.nio.channels.SelectionKey; |
| import java.nio.channels.Selector; |
| import java.nio.channels.SocketChannel; |
| |
| public class CloseTest { |
| |
| public static void main(String args[]) throws Exception { |
| String msg = "HELLO"; |
| |
| // Launch the service with arguments to tell it to close |
| // the connection after reading 5 bytes ("HELLO"). After |
| // closing the connection the service should hang around |
| // for 15 seconds. |
| |
| String service_args[] = new String[2]; |
| service_args[0] = String.valueOf(msg.length()); |
| service_args[1] = String.valueOf( 15*1000 ); |
| |
| |
| SocketChannel sc = Launcher.launchWithSocketChannel("EchoService", service_args); |
| |
| // send message - service will echo the message and close the connection. |
| |
| sc.write(ByteBuffer.wrap(msg.getBytes("UTF-8"))); |
| |
| // read the reply (with timeout) |
| ByteBuffer bb = ByteBuffer.allocateDirect(50); |
| sc.configureBlocking(false); |
| Selector sel = sc.provider().openSelector(); |
| SelectionKey sk = sc.register(sel, SelectionKey.OP_READ); |
| |
| long to = 12 * 1000; |
| for (;;) { |
| long st = System.currentTimeMillis(); |
| sel.select(to); |
| if (sk.isReadable()) { |
| int n = sc.read(bb); |
| |
| // EOF |
| if (n < 0) { |
| break; |
| } |
| } |
| sel.selectedKeys().remove(sk); |
| to -= System.currentTimeMillis() - st; |
| if (to <= 0) { |
| throw new RuntimeException("Timed out waiting for connection to close"); |
| } |
| } |
| sel.close(); |
| sc.close(); |
| |
| // finally check that the reply length is okay |
| bb.flip(); |
| if (bb.remaining() < msg.length()) { |
| throw new RuntimeException("Premature EOF from echo service"); |
| } |
| |
| System.out.println("Test passed - service closed connection."); |
| } |
| } |