| /* |
| * Copyright (c) 2015, 2016, 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. |
| */ |
| |
| /* @test |
| * @bug 8139133 |
| * @summary Verify ability to set time attributes of socket files with no device |
| * @requires os.family == "linux" |
| */ |
| |
| import java.io.File; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.nio.file.FileSystem; |
| import java.nio.file.FileSystems; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.StandardWatchEventKinds; |
| import java.nio.file.WatchKey; |
| import java.nio.file.WatchService; |
| import java.nio.file.attribute.BasicFileAttributeView; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.nio.file.attribute.FileTime; |
| |
| public class UnixSocketFile { |
| private static final String TEST_SUB_DIR = "UnixSocketFile"; |
| private static final String SOCKET_FILE_NAME = "mysocket"; |
| private static final String CMD_BASE = "nc -lU"; |
| |
| public static void main(String[] args) |
| throws InterruptedException, IOException { |
| |
| // Use 'which' to verify that 'nc' is available and skip the test |
| // if it is not. |
| Process proc = Runtime.getRuntime().exec("which nc"); |
| InputStream stdout = proc.getInputStream(); |
| int b = stdout.read(); |
| proc.destroy(); |
| if (b == -1) { |
| System.err.println("Netcat command unavailable; skipping test."); |
| return; |
| } |
| |
| // Create a new sub-directory of the nominal test directory in which |
| // 'nc' will create the socket file. |
| String testSubDir = System.getProperty("test.dir", ".") |
| + File.separator + TEST_SUB_DIR; |
| Path socketTestDir = Paths.get(testSubDir); |
| Files.createDirectory(socketTestDir); |
| |
| // Set the path of the socket file. |
| String socketFilePath = testSubDir + File.separator |
| + SOCKET_FILE_NAME; |
| |
| // Create a process which executes the nc (netcat) utility to create |
| // a socket file at the indicated location. |
| FileSystem fs = FileSystems.getDefault(); |
| try (WatchService ws = fs.newWatchService()) { |
| // Watch the test sub-directory to receive notification when an |
| // entry, i.e., the socket file, is added to the sub-directory. |
| WatchKey wk = socketTestDir.register(ws, |
| StandardWatchEventKinds.ENTRY_CREATE); |
| |
| // Execute the 'nc' command. |
| proc = Runtime.getRuntime().exec(CMD_BASE + " " + socketFilePath); |
| |
| // Wait until the socket file is created. |
| WatchKey key = ws.take(); |
| if (key != wk) { |
| throw new RuntimeException("Unknown entry created - expected: " |
| + wk.watchable() + ", actual: " + key.watchable()); |
| } |
| wk.cancel(); |
| } |
| |
| // Verify that the socket file in fact exists. |
| Path socketPath = fs.getPath(socketFilePath); |
| if (!Files.exists(socketPath)) { |
| throw new RuntimeException("Socket file " + socketFilePath |
| + " was not created by \"nc\" command."); |
| } |
| |
| // Retrieve the most recent access and modification times of the |
| // socket file; print the values. |
| BasicFileAttributeView attributeView = Files.getFileAttributeView( |
| socketPath, BasicFileAttributeView.class); |
| BasicFileAttributes oldAttributes = attributeView.readAttributes(); |
| FileTime oldAccessTime = oldAttributes.lastAccessTime(); |
| FileTime oldModifiedTime = oldAttributes.lastModifiedTime(); |
| System.out.println("Old times: " + oldAccessTime |
| + " " + oldModifiedTime); |
| |
| // Calculate the time to which the access and modification times of the |
| // socket file will be changed. |
| FileTime newFileTime = |
| FileTime.fromMillis(oldAccessTime.toMillis() + 1066); |
| |
| try { |
| // Set the access and modification times of the socket file. |
| attributeView.setTimes(newFileTime, newFileTime, null); |
| |
| // Retrieve the updated access and modification times of the |
| // socket file; print the values. |
| FileTime newAccessTime = null; |
| FileTime newModifiedTime = null; |
| BasicFileAttributes newAttributes = attributeView.readAttributes(); |
| newAccessTime = newAttributes.lastAccessTime(); |
| newModifiedTime = newAttributes.lastModifiedTime(); |
| System.out.println("New times: " + newAccessTime + " " |
| + newModifiedTime); |
| |
| // Verify that the updated times have the expected values. |
| if ((newAccessTime != null && !newAccessTime.equals(newFileTime)) |
| || (newModifiedTime != null |
| && !newModifiedTime.equals(newFileTime))) { |
| throw new RuntimeException("Failed to set correct times."); |
| } |
| } finally { |
| // Destry the process running netcat and delete the socket file. |
| proc.destroy(); |
| Files.delete(socketPath); |
| } |
| } |
| } |