1 /* 2 * Copyright (c) 2015, 2018, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.jcmd; 27 28 import java.io.File; 29 import java.nio.file.Path; 30 import java.nio.file.Paths; 31 import java.util.Iterator; 32 33 import jdk.jfr.Configuration; 34 import jdk.jfr.Recording; 35 import jdk.test.lib.jfr.FileHelper; 36 import jdk.test.lib.process.OutputAnalyzer; 37 38 /* 39 * @test 40 * @summary The test verifies JFR.dump command 41 * @key jfr 42 * @library /test/lib /test/jdk 43 * @run main/othervm jdk.jfr.jcmd.TestJcmdDumpGeneratedFilename 44 */ 45 public class TestJcmdDumpGeneratedFilename { 46 47 public static void main(String[] args) throws Exception { 48 // Increase the id for a recording 49 for (int i = 0; i < 300; i++) { 50 new Recording(); 51 } 52 try (Recording r = new Recording(Configuration.getConfiguration("default"))) { 53 r.start(); 54 r.stop(); 55 testDumpFilename(); 56 testDumpFilename(r); 57 testDumpDiectory(); 58 testDumpDiectory(r); 59 } 60 } 61 62 private static void testDumpFilename() throws Exception { 63 OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump"); 64 verifyFile(readFilename(output), null); 65 } 66 67 private static void testDumpFilename(Recording r) throws Exception { 68 OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "name=" + r.getId()); 69 verifyFile(readFilename(output), r.getId()); 70 } 71 72 private static void testDumpDiectory() throws Exception { 73 Path directory = Paths.get(".").toAbsolutePath().normalize(); 74 OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + directory); 75 String filename = readFilename(output); 76 verifyFile(filename, null); 77 verifyDirectory(filename, directory); 78 } 79 80 private static void testDumpDiectory(Recording r) throws Exception { 81 Path directory = Paths.get(".").toAbsolutePath().normalize(); 82 OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "name=" + r.getId(), "filename=" + directory); 83 String filename = readFilename(output); 84 verifyFile(filename, r.getId()); 85 verifyDirectory(filename, directory); 86 } 87 88 private static void verifyDirectory(String filename, Path directory) throws Exception { 89 if (!filename.contains(directory.toAbsolutePath().normalize().toString())) { 90 throw new Exception("Expected dump to be at " + directory); 91 } 92 } 93 94 private static void verifyFile(String filename, Long id) throws Exception { 95 String idText = id == null ? "" : "-id-" + Long.toString(id); 96 String expectedName = "hotspot-pid-" + ProcessHandle.current().pid() + idText; 97 if (!filename.contains(expectedName)) { 98 throw new Exception("Expected filename to contain " + expectedName); 99 } 100 FileHelper.verifyRecording(new File(filename)); 101 } 102 103 private static String readFilename(OutputAnalyzer output) throws Exception { 104 Iterator<String> it = output.asLines().iterator(); 105 while (it.hasNext()) { 106 String line = it.next(); 107 if (line.contains("written to")) { 108 line = it.next(); // blank line 109 return it.next(); 110 } 111 } 112 throw new Exception("Could not find filename of dumped recording."); 113 } 114 }