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 * @build jdk.test.lib.Platform 33 * jdk.test.lib.util.FileUtils 34 * @author rpatil 35 * @run main/othervm FileHandlerMaxLocksTest 36 */ 37 import java.io.File; 38 import java.io.FileWriter; 39 import java.io.IOException; 40 import java.nio.file.Paths; 41 import java.util.ArrayList; 42 import java.util.List; 43 import java.util.logging.FileHandler; 44 import jdk.test.lib.util.FileUtils; 45 46 public class FileHandlerMaxLocksTest { 47 48 private static final String LOGGER_DIR = "logger-dir"; 49 private static final String MAX_LOCK_PROPERTY = "java.util.logging.FileHandler.maxLocks = 200"; 50 private static final String CONFIG_FILE_NAME = "logging.properties"; 51 52 public static void main(String[] args) throws Exception { 53 File loggerDir = createLoggerDir(); 54 String configFilePath = loggerDir.getPath() + File.separator + CONFIG_FILE_NAME; 55 File configFile = new File(configFilePath); 56 createFile(configFile, false); 57 System.setProperty("java.util.logging.config.file", configFilePath); 58 List<FileHandler> fileHandlers = new ArrayList<>(); 59 try (FileWriter writer = new FileWriter(configFile)) { 60 writer.write(MAX_LOCK_PROPERTY); 61 writer.flush(); 62 // 200 raises the default limit of 100, we try 102 times 63 for (int i = 0; i < 102; i++) { 64 fileHandlers.add(new FileHandler(loggerDir.getPath() + File.separator + "test_%u.log")); 65 } 66 } catch (IOException ie) { 67 throw new RuntimeException("Test Failed: " + ie.getMessage()); 68 } finally { 69 for (FileHandler fh : fileHandlers) { 70 fh.close(); 71 } 72 FileUtils.deleteFileTreeWithRetry(Paths.get(loggerDir.getPath())); 73 } 74 } 75 76 /** 77 * Create a writable directory in user directory for the test 78 * 79 * @return writable directory created that needs to be deleted when done 80 * @throws RuntimeException 81 */ 82 private static File createLoggerDir() throws RuntimeException { 83 String userDir = System.getProperty("user.dir", "."); 84 File loggerDir = new File(userDir, LOGGER_DIR); 85 if (!createFile(loggerDir, true)) { 86 throw new RuntimeException("Test failed: unable to create" 87 + " writable working directory " 88 + loggerDir.getAbsolutePath()); 89 } 90 // System.out.println("Created Logger Directory: " + loggerDir.getPath()); 91 return loggerDir; 92 } 93 94 /** 95 * @param newFile File to be created 96 * @param makeDirectory is File to be created is directory 97 * @return true if file already exists or creation succeeded 98 */ 99 private static boolean createFile(File newFile, boolean makeDirectory) { 100 if (newFile.exists()) { 101 return true; 102 } 103 if (makeDirectory) { 104 return newFile.mkdir(); 105 } else { 106 try { 107 return newFile.createNewFile(); 108 } catch (IOException ie) { 109 System.err.println("Not able to create file: " + newFile 110 + ", IOException: " + ie.getMessage()); 111 return false; 112 } 113 } 114 } 115 }