diff -r 2c3cc4b01880 -r c16ac7a2eba4 test/jdk/jdk/jfr/api/consumer/streaming/TestRepositoryProperty.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/jdk/jdk/jfr/api/consumer/streaming/TestRepositoryProperty.java Wed Oct 30 19:43:52 2019 +0100 @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package jdk.jfr.api.consumer.streaming; + +import java.io.IOException; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.Properties; + +import com.sun.tools.attach.AttachNotSupportedException; +import com.sun.tools.attach.VirtualMachine; + +import jdk.jfr.Recording; +import jdk.test.lib.dcmd.CommandExecutor; +import jdk.test.lib.dcmd.PidJcmdExecutor; + +/** + * @test + * @summary Verifies that it is possible to access JFR repository from a system + * property + * @key jfr + * @requires vm.hasJFR + * @library /test/lib + * @modules jdk.attach + * jdk.jfr + * @run main/othervm -Djdk.attach.allowAttachSelf=true jdk.jfr.api.consumer.streaming.TestRepositoryProperty + */ +public class TestRepositoryProperty { + + private final static String JFR_REPOSITORY_LOCATION_PROPERTY = "jdk.jfr.repository"; + + public static void main(String... args) throws Exception { + testBeforeInitialization(); + testAfterInitialization(); + testFromAgent(); + testAfterChange(); + } + + private static void testFromAgent() throws AttachNotSupportedException, IOException { + String pidText = String.valueOf(ProcessHandle.current().pid()); + VirtualMachine vm = VirtualMachine.attach(pidText); + Properties p = vm.getSystemProperties(); + String location = (String) p.get(JFR_REPOSITORY_LOCATION_PROPERTY); + if (location == null) { + throw new AssertionError("Could not find repository path in agent properties"); + } + Path path = Path.of(location); + if (!Files.isDirectory(path)) { + throw new AssertionError("Repository path doesn't point to directory"); + } + } + + private static void testAfterChange() { + Path newRepository = Path.of(".").toAbsolutePath(); + + String cmd = "JFR.configure repository=" + newRepository.toString(); + CommandExecutor executor = new PidJcmdExecutor(); + executor.execute(cmd); + String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY); + if (newRepository.toString().equals(location)) { + throw new AssertionError("Repository path not updated after it has been changed"); + } + } + + private static void testAfterInitialization() { + try (Recording r = new Recording()) { + r.start(); + String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY); + if (location == null) { + throw new AssertionError("Repository path should exist after JFR is initialized"); + } + System.out.println("repository=" + location); + Path p = Path.of(location); + if (!Files.isDirectory(p)) { + throw new AssertionError("Repository path doesn't point to directory"); + } + } + + } + + private static void testBeforeInitialization() { + String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY); + if (location != null) { + throw new AssertionError("Repository path should not exist before JFR is initialized"); + } + } +}