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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package jdk.jfr.jcmd; 25 26 import java.io.File; 27 import java.util.Arrays; 28 import java.util.stream.Collectors; 29 30 import jdk.test.lib.Asserts; 31 import jdk.test.lib.dcmd.CommandExecutor; 32 import jdk.test.lib.dcmd.PidJcmdExecutor; 33 import jdk.test.lib.process.OutputAnalyzer; 34 35 public class JcmdHelper { 36 37 // Wait until recording's state became running waitUntilRunning(String name)38 public static void waitUntilRunning(String name) throws Exception { 39 long timeoutAt = System.currentTimeMillis() + 10000; 40 while (true) { 41 OutputAnalyzer output = jcmdCheck(name, false); 42 try { 43 // The expected output can look like this: 44 // Recording 1: name=1 (running) 45 output.shouldMatch("^Recording \\d+: name=" + name 46 + " .*\\W{1}running\\W{1}"); 47 return; 48 } catch (RuntimeException e) { 49 if (System.currentTimeMillis() > timeoutAt) { 50 Asserts.fail("Recording not started: " + name); 51 } 52 Thread.sleep(100); 53 } 54 } 55 } 56 stopAndCheck(String name)57 public static void stopAndCheck(String name) throws Exception { 58 jcmd("JFR.stop", "name=\"" + name + "\""); 59 assertRecordingNotRunning(name); 60 } 61 stopWriteToFileAndCheck(String name, File file)62 public static void stopWriteToFileAndCheck(String name, File file) throws Exception { 63 OutputAnalyzer output = jcmd("JFR.stop", 64 "name=\"" + name + "\"", 65 "filename=\"" + file.getAbsolutePath() + "\""); 66 JcmdAsserts.assertStoppedAndWrittenTo(output, name, file); 67 assertRecordingNotRunning(name); 68 } 69 stopCompressAndCheck(String name, File file)70 public static void stopCompressAndCheck(String name, File file) throws Exception { 71 OutputAnalyzer output = jcmd("JFR.stop", 72 "name=\"" + name + "\"", 73 "compress=true", 74 "filename=\"" + file.getAbsolutePath() + "\""); 75 JcmdAsserts.assertStoppedAndWrittenTo(output, name, file); 76 checkAndAssertNoRecordingsAvailable(); 77 } 78 stopDefaultRecordingAndCheck()79 public static void stopDefaultRecordingAndCheck() throws Exception { 80 OutputAnalyzer output = jcmd("JFR.stop", "recording=0"); 81 JcmdAsserts.assertStoppedDefaultRecording(output); 82 checkAndAssertNoRecordingsAvailable(); 83 } 84 checkAndAssertNoRecordingsAvailable()85 public static void checkAndAssertNoRecordingsAvailable() throws Exception { 86 OutputAnalyzer output = jcmd("JFR.check"); 87 JcmdAsserts.assertNoRecordingsAvailable(output); 88 } 89 assertRecordingNotExist(String name)90 public static void assertRecordingNotExist(String name) throws Exception { 91 OutputAnalyzer output = jcmdCheck(name, false); 92 JcmdAsserts.assertRecordingNotExist(output, name); 93 } 94 assertRecordingNotRunning(String name)95 public static void assertRecordingNotRunning(String name) throws Exception { 96 OutputAnalyzer output = jcmdCheck(name, false); 97 JcmdAsserts.assertRecordingNotRunning(output, name); 98 } 99 assertRecordingIsRunning(String name)100 public static void assertRecordingIsRunning(String name) throws Exception { 101 OutputAnalyzer output = jcmdCheck(name, false); 102 JcmdAsserts.assertRecordingIsRunning(output, name); 103 } 104 jcmd(int expectedExitValue, String... args)105 public static OutputAnalyzer jcmd(int expectedExitValue, String... args) { 106 String argsString = Arrays.stream(args).collect(Collectors.joining(" ")); 107 CommandExecutor executor = new PidJcmdExecutor(); 108 OutputAnalyzer oa = executor.execute(argsString); 109 oa.shouldHaveExitValue(expectedExitValue); 110 return oa; 111 } 112 jcmd(String... args)113 public static OutputAnalyzer jcmd(String... args) { 114 return jcmd(0, args); 115 } 116 117 jcmdCheck(String recordingName, boolean verbose)118 public static OutputAnalyzer jcmdCheck(String recordingName, boolean verbose) { 119 return jcmd("JFR.check", "name=" + recordingName, "verbose=" + verbose); 120 } 121 } 122