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/*
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* Copyright (c) 2015, 2018, 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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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package jdk.jfr.jcmd;
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import java.io.File;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.Iterator;
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import jdk.jfr.Configuration;
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import jdk.jfr.Recording;
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import jdk.test.lib.jfr.FileHelper;
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import jdk.test.lib.process.OutputAnalyzer;
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/*
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* @test
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* @summary The test verifies JFR.dump command
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* @key jfr
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* @library /test/lib /test/jdk
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* @run main/othervm jdk.jfr.jcmd.TestJcmdDumpGeneratedFilename
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*/
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public class TestJcmdDumpGeneratedFilename {
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public static void main(String[] args) throws Exception {
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// Increase the id for a recording
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for (int i = 0; i < 300; i++) {
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new Recording();
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}
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try (Recording r = new Recording(Configuration.getConfiguration("default"))) {
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r.start();
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r.stop();
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testDumpFilename();
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testDumpFilename(r);
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testDumpDiectory();
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testDumpDiectory(r);
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}
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}
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private static void testDumpFilename() throws Exception {
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OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump");
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verifyFile(readFilename(output), null);
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}
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private static void testDumpFilename(Recording r) throws Exception {
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OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "name=" + r.getId());
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verifyFile(readFilename(output), r.getId());
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}
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private static void testDumpDiectory() throws Exception {
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Path directory = Paths.get(".").toAbsolutePath().normalize();
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OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + directory);
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String filename = readFilename(output);
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verifyFile(filename, null);
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verifyDirectory(filename, directory);
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}
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private static void testDumpDiectory(Recording r) throws Exception {
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Path directory = Paths.get(".").toAbsolutePath().normalize();
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OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "name=" + r.getId(), "filename=" + directory);
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String filename = readFilename(output);
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verifyFile(filename, r.getId());
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verifyDirectory(filename, directory);
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}
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private static void verifyDirectory(String filename, Path directory) throws Exception {
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if (!filename.contains(directory.toAbsolutePath().normalize().toString())) {
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throw new Exception("Expected dump to be at " + directory);
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}
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}
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private static void verifyFile(String filename, Long id) throws Exception {
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String idText = id == null ? "" : "-id-" + Long.toString(id);
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String expectedName = "hotspot-pid-" + ProcessHandle.current().pid() + idText;
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if (!filename.contains(expectedName)) {
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throw new Exception("Expected filename to contain " + expectedName);
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}
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FileHelper.verifyRecording(new File(filename));
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}
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private static String readFilename(OutputAnalyzer output) throws Exception {
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Iterator<String> it = output.asLines().iterator();
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while (it.hasNext()) {
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String line = it.next();
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if (line.contains("written to")) {
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line = it.next(); // blank line
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return it.next();
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}
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}
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throw new Exception("Could not find filename of dumped recording.");
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}
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}
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