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/*
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* Copyright (c) 2015, 2018, 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.jcmd;
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import java.nio.file.Files;
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import java.util.ArrayList;
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import java.util.List;
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import jdk.jfr.internal.Options;
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import jdk.test.lib.Asserts;
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51214
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/**
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50113
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* @test
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* @summary The test verifies JFR.configure command
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* @key jfr
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51214
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* @requires vm.hasJFR
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50113
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* @library /test/lib /test/jdk
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* @modules jdk.jfr/jdk.jfr.internal
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* @run main/othervm jdk.jfr.jcmd.TestJcmdConfigure
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*/
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public class TestJcmdConfigure {
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private static final String DUMPPATH = "dumppath";
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private static final String STACK_DEPTH = "stackdepth";
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private static final String GLOBAL_BUFFER_COUNT = "globalbuffercount";
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private static final String GLOBAL_BUFFER_SIZE = "globalbuffersize";
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private static final String THREAD_BUFFER_SIZE = "thread_buffer_size";
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private static final String MAX_CHUNK_SIZE = "maxchunksize";
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private static final String SAMPLE_THREADS = "samplethreads";
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private static final String UNSUPPORTED_OPTION = "unsupportedoption";
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public static void main(String[] args) throws Exception {
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//
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// Simple sanity tests against what is available in Java,
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// before Flight Recorder is loaded. To do:
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//
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// - set values when JFR is running, check for errors.
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// - validate against output from JFR.configure
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// - where feasible, check if they are respected
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//
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String dumpPath = Files.createTempDirectory("dump-path").toAbsolutePath().toString();
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test(DUMPPATH, dumpPath);
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test(STACK_DEPTH, 15);
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test(GLOBAL_BUFFER_COUNT, 7);
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test(GLOBAL_BUFFER_SIZE, 6);
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test(THREAD_BUFFER_SIZE, 5);
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test(MAX_CHUNK_SIZE, 14 * 1000 * 1000);
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test(SAMPLE_THREADS, false);
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test(SAMPLE_THREADS, true);
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testNegative(UNSUPPORTED_OPTION, 100000);
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testNegative(MAX_CHUNK_SIZE, -500);
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if (!testExceptions.isEmpty()) {
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for (Exception e : testExceptions) {
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System.out.println("Error: " + e.getMessage());
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}
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throw testExceptions.get(0);
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}
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}
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private static List<Exception> testExceptions = new ArrayList<>();
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private static void test(String configName, Object value) {
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JcmdHelper.jcmd("JFR.configure", configName + "=" + value);
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Object actualValue = getOption(configName);
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System.out.format("Test param='%s', expected='%s', actual='%s'%n", configName, value, actualValue);
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try {
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// Need convert to string to compare Integer and Long
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Asserts.assertEquals(value.toString(), actualValue.toString(), "Wrong JFR.configure " + configName);
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} catch (Exception e) {
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testExceptions.add(e);
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}
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}
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private static void testNegative(String configName, Object value) {
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try {
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// Syntactically invalid arguments are catched by the JCMD framework where an error code of 1 is returned.
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// Syntactically valid arguments that are semantically invalid (invalid value ranges for example) are handled by JFR code, it will always return a value of 0.
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JcmdHelper.jcmd(configName.equals(UNSUPPORTED_OPTION) ? 1 : 0, "JFR.configure", configName + "=" + value);
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} catch(Exception e) {
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testExceptions.add(e);
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}
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}
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private static Object getOption(String name) {
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switch (name) {
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case DUMPPATH: return Options.getDumpPath().toString();
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case STACK_DEPTH: return Options.getStackDepth();
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case GLOBAL_BUFFER_COUNT: return Options.getGlobalBufferCount();
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case GLOBAL_BUFFER_SIZE: return Options.getGlobalBufferSize();
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case THREAD_BUFFER_SIZE: return Options.getThreadBufferSize();
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case MAX_CHUNK_SIZE: return Options.getMaxChunkSize();
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case SAMPLE_THREADS: return Options.getSampleThreads();
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default: throw new RuntimeException("Unknown option " + name);
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}
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}
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}
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