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/*
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* Copyright (c) 2019, 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.api.consumer.streaming;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.Properties;
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import com.sun.tools.attach.AttachNotSupportedException;
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import com.sun.tools.attach.VirtualMachine;
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import jdk.jfr.Recording;
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import jdk.test.lib.dcmd.CommandExecutor;
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import jdk.test.lib.dcmd.PidJcmdExecutor;
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/**
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* @test
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* @summary Verifies that it is possible to access JFR repository from a system
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* property
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* @key jfr
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* @requires vm.hasJFR
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* @library /test/lib
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* @modules jdk.attach
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* jdk.jfr
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* @run main/othervm -Djdk.attach.allowAttachSelf=true jdk.jfr.api.consumer.streaming.TestRepositoryProperty
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*/
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public class TestRepositoryProperty {
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private final static String JFR_REPOSITORY_LOCATION_PROPERTY = "jdk.jfr.repository";
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public static void main(String... args) throws Exception {
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testBeforeInitialization();
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testAfterInitialization();
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testFromAgent();
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testAfterChange();
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}
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private static void testFromAgent() throws AttachNotSupportedException, IOException {
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String pidText = String.valueOf(ProcessHandle.current().pid());
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VirtualMachine vm = VirtualMachine.attach(pidText);
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Properties p = vm.getSystemProperties();
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String location = (String) p.get(JFR_REPOSITORY_LOCATION_PROPERTY);
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if (location == null) {
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throw new AssertionError("Could not find repository path in agent properties");
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}
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Path path = Path.of(location);
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if (!Files.isDirectory(path)) {
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throw new AssertionError("Repository path doesn't point to directory");
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}
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}
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private static void testAfterChange() {
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Path newRepository = Path.of(".").toAbsolutePath();
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String cmd = "JFR.configure repository=" + newRepository.toString();
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CommandExecutor executor = new PidJcmdExecutor();
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executor.execute(cmd);
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String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY);
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if (newRepository.toString().equals(location)) {
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throw new AssertionError("Repository path not updated after it has been changed");
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}
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}
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private static void testAfterInitialization() {
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try (Recording r = new Recording()) {
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r.start();
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String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY);
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if (location == null) {
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throw new AssertionError("Repository path should exist after JFR is initialized");
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}
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System.out.println("repository=" + location);
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Path p = Path.of(location);
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if (!Files.isDirectory(p)) {
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throw new AssertionError("Repository path doesn't point to directory");
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}
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}
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}
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private static void testBeforeInitialization() {
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String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY);
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if (location != null) {
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throw new AssertionError("Repository path should not exist before JFR is initialized");
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}
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}
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}
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