| /* |
| * Copyright (c) 2012, 2013, 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 Test6941923.java |
| * @bug 6941923 |
| * @summary test flags for gc log rotation |
| * @library /testlibrary |
| * @run main/othervm/timeout=600 Test6941923 |
| * |
| */ |
| import com.oracle.java.testlibrary.*; |
| import java.io.File; |
| import java.io.FilenameFilter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| class GCLoggingGenerator { |
| |
| public static void main(String[] args) throws Exception { |
| |
| long sizeOfLog = Long.parseLong(args[0]); |
| long lines = sizeOfLog / 80; |
| // full.GC generates ad least 1-line which is not shorter then 80 chars |
| // for some GC 2 shorter lines are generated |
| for (long i = 0; i < lines; i++) { |
| System.gc(); |
| } |
| } |
| } |
| |
| public class Test6941923 { |
| |
| static final File currentDirectory = new File("."); |
| static final String logFileName = "test.log"; |
| static final int logFileSizeK = 16; |
| static FilenameFilter logFilter = new FilenameFilter() { |
| @Override |
| public boolean accept(File dir, String name) { |
| return name.startsWith(logFileName); |
| } |
| }; |
| |
| public static void cleanLogs() { |
| for (File log : currentDirectory.listFiles(logFilter)) { |
| if (!log.delete()) { |
| throw new Error("Unable to delete " + log.getAbsolutePath()); |
| } |
| } |
| } |
| |
| public static void runTest(int numberOfFiles) throws Exception { |
| |
| ArrayList<String> args = new ArrayList(); |
| String[] logOpts = new String[]{ |
| "-cp", System.getProperty("java.class.path"), |
| "-Xloggc:" + logFileName, |
| "-XX:-DisableExplicitGC", // to sure that System.gc() works |
| "-XX:+PrintGC", "-XX:+PrintGCDetails", "-XX:+UseGCLogFileRotation", |
| "-XX:NumberOfGCLogFiles=" + numberOfFiles, |
| "-XX:GCLogFileSize=" + logFileSizeK + "K", "-Xmx128M"}; |
| // System.getProperty("test.java.opts") is '' if no options is set |
| // need to skip such empty |
| String[] externalVMopts = System.getProperty("test.java.opts").length() == 0 |
| ? new String[0] |
| : System.getProperty("test.java.opts").split(" "); |
| args.addAll(Arrays.asList(externalVMopts)); |
| args.addAll(Arrays.asList(logOpts)); |
| args.add(GCLoggingGenerator.class.getName()); |
| args.add(String.valueOf(numberOfFiles * logFileSizeK * 1024)); |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args.toArray(new String[0])); |
| pb.redirectErrorStream(true); |
| pb.redirectOutput(new File(GCLoggingGenerator.class.getName() + ".log")); |
| Process process = pb.start(); |
| int result = process.waitFor(); |
| if (result != 0) { |
| throw new Error("Unexpected exit code = " + result); |
| } |
| File[] logs = currentDirectory.listFiles(logFilter); |
| int smallFilesNumber = 0; |
| for (File log : logs) { |
| if (log.length() < logFileSizeK * 1024) { |
| smallFilesNumber++; |
| } |
| } |
| if (logs.length != numberOfFiles) { |
| throw new Error("There are only " + logs.length + " logs instead " + numberOfFiles); |
| } |
| if (smallFilesNumber > 1) { |
| throw new Error("There should maximum one log with size < " + logFileSizeK + "K"); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| cleanLogs(); |
| runTest(1); |
| cleanLogs(); |
| runTest(3); |
| cleanLogs(); |
| } |
| } |