1 /* 2 * Copyright (c) 2013, 2019, 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.startupargs; 27 28 import java.io.IOException; 29 import java.nio.file.DirectoryStream; 30 import java.nio.file.Files; 31 import java.nio.file.Path; 32 import java.util.ArrayList; 33 import java.util.Arrays; 34 import java.util.List; 35 import java.util.stream.Collectors; 36 37 import jdk.jfr.FlightRecorder; 38 import jdk.jfr.Recording; 39 import jdk.testlibrary.Asserts; 40 import jdk.testlibrary.dcmd.CommandExecutor; 41 import jdk.testlibrary.dcmd.PidJcmdExecutor; 42 import jdk.testlibrary.OutputAnalyzer; 43 44 45 46 public class StartupHelper { 47 48 public static Recording getRecording(String name) { 49 for (Recording r : FlightRecorder.getFlightRecorder().getRecordings()) { 50 System.out.println("Recording=" + r.getName()); 51 if (name.equals(r.getName())) { 52 return r; 53 } 54 } 55 Asserts.fail("No recording with name " + name); 56 return null; 57 } 58 59 public static List<Path> listFilesInDir(Path root) throws IOException { 60 List<Path> paths = new ArrayList<>(); 61 List<Path> searchPaths = new ArrayList<>(); 62 searchPaths.add(root); 63 64 while (!searchPaths.isEmpty()) { 65 Path currRoot = searchPaths.remove(searchPaths.size() - 1); 66 DirectoryStream<Path> contents = Files.newDirectoryStream(currRoot); 67 for (Path path : contents) { 68 paths.add(path); 69 if (Files.isDirectory(path)) { 70 searchPaths.add(path); 71 } 72 } 73 } 74 75 System.out.println("Files in '" + root + "':"); 76 for (Path path : paths) { 77 System.out.println(" path: " + path); 78 } 79 return paths; 80 } 81 82 public static Path findRecordingFileInRepo(Path baseLocation) throws IOException { 83 // Check that repo contains a file ending in "jfr" or "part" 84 for (Path path : listFilesInDir(baseLocation)) { 85 if (Files.isRegularFile(path)) { 86 String filename = path.toString(); 87 if (filename.endsWith("jfr") || filename.endsWith("part")) { 88 return path; 89 } 90 } 91 } 92 return null; 93 } 94 95 public static OutputAnalyzer jcmd(String... args) { 96 String argsString = Arrays.stream(args).collect(Collectors.joining(" ")); 97 CommandExecutor executor = new PidJcmdExecutor(); 98 OutputAnalyzer oa = executor.execute(argsString); 99 oa.shouldHaveExitValue(0); 100 return oa; 101 } 102 103 public static OutputAnalyzer jcmdCheck(String recordingName) { 104 return jcmd("JFR.check", "name=" + recordingName, "verbose=true"); 105 } 106 }