115 lines
4.1 KiB
Java
115 lines
4.1 KiB
Java
/*
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* Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test TestLogRotation.java
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* @summary test flags for log rotation
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* @run driver/timeout=600 TestLogRotation
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*
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*/
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import jdk.test.lib.process.ProcessTools;
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import java.io.File;
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import java.io.FilenameFilter;
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import java.util.ArrayList;
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import java.util.Arrays;
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class GCLoggingGenerator {
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public static void main(String[] args) throws Exception {
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long sizeOfLog = Long.parseLong(args[0]);
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long lines = sizeOfLog / 70;
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// full.GC generates ad least 1-line which is not shorter then 70 chars
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// for some GC 2 shorter lines are generated
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for (long i = 0; i < lines; i++) {
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System.gc();
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}
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}
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}
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public class TestLogRotation {
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static final File currentDirectory = new File(".");
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static final String logFileName = "test.log";
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static final int logFileSizeK = 16;
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static FilenameFilter logFilter = new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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return name.startsWith(logFileName);
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}
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};
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public static void cleanLogs() {
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for (File log : currentDirectory.listFiles(logFilter)) {
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if (!log.delete()) {
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throw new Error("Unable to delete " + log.getAbsolutePath());
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}
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}
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}
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public static void runTest(int numberOfFiles) throws Exception {
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ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(
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"-cp", System.getProperty("java.class.path"),
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"-Xlog:gc=debug:" + logFileName
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+ "::filesize=" + logFileSizeK + "k"
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+ ",filecount=" + numberOfFiles,
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"-XX:-DisableExplicitGC", // to ensure that System.gc() works
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"-Xmx128M",
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GCLoggingGenerator.class.getName(),
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String.valueOf(numberOfFiles * logFileSizeK * 1024));
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pb.redirectErrorStream(true);
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pb.redirectOutput(new File(GCLoggingGenerator.class.getName() + ".log"));
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Process process = pb.start();
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int result = process.waitFor();
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if (result != 0) {
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throw new Error("Unexpected exit code = " + result);
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}
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File[] logs = currentDirectory.listFiles(logFilter);
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int smallFilesNumber = 0;
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for (File log : logs) {
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if (log.length() < logFileSizeK * 1024) {
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smallFilesNumber++;
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}
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}
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// Expect one more log file since the number-of-files doesn't include the active log file
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int expectedNumberOfFiles = numberOfFiles + 1;
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if (logs.length != expectedNumberOfFiles) {
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throw new Error("There are " + logs.length + " logs instead of the expected " + expectedNumberOfFiles);
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}
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if (smallFilesNumber > 1) {
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throw new Error("There should maximum one log with size < " + logFileSizeK + "K");
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}
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}
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public static void main(String[] args) throws Exception {
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cleanLogs();
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runTest(1);
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cleanLogs();
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runTest(3);
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cleanLogs();
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}
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}
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