1 /* 2 * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8153955 27 * @summary test the FileHandler's new property 28 * "java.util.logging.FileHandler.maxLocks" which will be present in 29 * "logging.properties" file with default value of 100. This property can be 30 * overriden by specifying this property in the custom config file. 31 * @library /test/lib 32 * @author rpatil 33 * @run main/othervm FileHandlerMaxLocksTest 34 */ 35 import java.io.File; 36 import java.io.FileWriter; 37 import java.io.IOException; 38 import java.nio.file.Paths; 39 import java.util.ArrayList; 40 import java.util.List; 41 import java.util.logging.FileHandler; 42 import jdk.test.lib.util.FileUtils; 43 44 public class FileHandlerMaxLocksTest { 45 46 private static final String LOGGER_DIR = "logger-dir"; 47 private static final String MAX_LOCK_PROPERTY = "java.util.logging.FileHandler.maxLocks = 200"; 48 private static final String CONFIG_FILE_NAME = "logging.properties"; 49 50 public static void main(String[] args) throws Exception { 51 File loggerDir = createLoggerDir(); 52 String configFilePath = loggerDir.getPath() + File.separator + CONFIG_FILE_NAME; 53 File configFile = new File(configFilePath); 54 createFile(configFile, false); 55 System.setProperty("java.util.logging.config.file", configFilePath); 56 List<FileHandler> fileHandlers = new ArrayList<>(); 57 try (FileWriter writer = new FileWriter(configFile)) { 58 writer.write(MAX_LOCK_PROPERTY); 59 writer.flush(); 60 // 200 raises the default limit of 100, we try 102 times 61 for (int i = 0; i < 102; i++) { 62 fileHandlers.add(new FileHandler(loggerDir.getPath() + File.separator + "test_%u.log")); 63 } 64 } catch (IOException ie) { 65 throw new RuntimeException("Test Failed: " + ie.getMessage()); 66 } finally { 67 for (FileHandler fh : fileHandlers) { 68 fh.close(); 69 } 70 FileUtils.deleteFileTreeWithRetry(Paths.get(loggerDir.getPath())); 71 } 72 } 73 74 /** 75 * Create a writable directory in user directory for the test 76 * 77 * @return writable directory created that needs to be deleted when done 78 * @throws RuntimeException 79 */ 80 private static File createLoggerDir() throws RuntimeException { 81 String userDir = System.getProperty("user.dir", "."); 82 File loggerDir = new File(userDir, LOGGER_DIR); 83 if (!createFile(loggerDir, true)) { 84 throw new RuntimeException("Test failed: unable to create" 85 + " writable working directory " 86 + loggerDir.getAbsolutePath()); 87 } 88 // System.out.println("Created Logger Directory: " + loggerDir.getPath()); 89 return loggerDir; 90 } 91 92 /** 93 * @param newFile File to be created 94 * @param makeDirectory is File to be created is directory 95 * @return true if file already exists or creation succeeded 96 */ 97 private static boolean createFile(File newFile, boolean makeDirectory) { 98 if (newFile.exists()) { 99 return true; 100 } 101 if (makeDirectory) { 102 return newFile.mkdir(); 103 } else { 104 try { 105 return newFile.createNewFile(); 106 } catch (IOException ie) { 107 System.err.println("Not able to create file: " + newFile 108 + ", IOException: " + ie.getMessage()); 109 return false; 110 } 111 } 112 } 113 }