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. 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.jcmd;
27
28 import java.nio.file.Files;
29 import java.util.ArrayList;
30 import java.util.List;
31
32 import jdk.jfr.internal.Options;
33 import jdk.test.lib.Asserts;
34
35 /**
36 * @test
37 * @summary The test verifies JFR.configure command
38 * @key jfr
39 *
40 * @library /lib /
41 *
42 * @run main/othervm jdk.jfr.jcmd.TestJcmdConfigure
43 */
44 public class TestJcmdConfigure {
45
46 private static final String DUMPPATH = "dumppath";
47 private static final String STACK_DEPTH = "stackdepth";
48 private static final String GLOBAL_BUFFER_COUNT = "globalbuffercount";
49 private static final String GLOBAL_BUFFER_SIZE = "globalbuffersize";
50 private static final String THREAD_BUFFER_SIZE = "thread_buffer_size";
51 private static final String MAX_CHUNK_SIZE = "maxchunksize";
52 private static final String SAMPLE_THREADS = "samplethreads";
53 private static final String UNSUPPORTED_OPTION = "unsupportedoption";
54
55 public static void main(String[] args) throws Exception {
56 //
57 // Simple sanity tests against what is available in Java,
58 // before Flight Recorder is loaded. To do:
59 //
60 // - set values when JFR is running, check for errors.
61 // - validate against output from JFR.configure
62 // - where feasible, check if they are respected
63 //
64
65 String dumpPath = Files.createTempDirectory("dump-path").toAbsolutePath().toString();
66
67 test(DUMPPATH, dumpPath);
68 test(STACK_DEPTH, 15);
69 test(GLOBAL_BUFFER_COUNT, 7);
70 test(GLOBAL_BUFFER_SIZE, 6);
71 test(THREAD_BUFFER_SIZE, 5);
72 test(MAX_CHUNK_SIZE, 14 * 1000 * 1000);
73 test(SAMPLE_THREADS, false);
74 test(SAMPLE_THREADS, true);
75 testNegative(UNSUPPORTED_OPTION, 100000);
76 testNegative(MAX_CHUNK_SIZE, -500);
77
78 if (!testExceptions.isEmpty()) {
79 for (Exception e : testExceptions) {
80 System.out.println("Error: " + e.getMessage());
81 }
82 throw testExceptions.get(0);
83 }
84 }
85
86 private static List<Exception> testExceptions = new ArrayList<>();
87
88 private static void test(String configName, Object value) {
89 JcmdHelper.jcmd("JFR.configure", configName + "=" + value);
90 Object actualValue = getOption(configName);
91 System.out.format("Test param='%s', expected='%s', actual='%s'%n", configName, value, actualValue);
92 try {
93 // Need convert to string to compare Integer and Long
94 Asserts.assertEquals(value.toString(), actualValue.toString(), "Wrong JFR.configure " + configName);
95 } catch (Exception e) {
96 testExceptions.add(e);
97 }
98 }
99
100 private static void testNegative(String configName, Object value) {
101 try {
102 // Syntactically invalid arguments are catched by the JCMD framework where an error code of 1 is returned.
103 // 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.
104 JcmdHelper.jcmd(configName.equals(UNSUPPORTED_OPTION) ? 1 : 0, "JFR.configure", configName + "=" + value);
105 } catch(Exception e) {
106 testExceptions.add(e);
107 }
108 }
109
110 private static Object getOption(String name) {
111 switch (name) {
112 case DUMPPATH: return Options.getDumpPath().toString();
113 case STACK_DEPTH: return Options.getStackDepth();
114 case GLOBAL_BUFFER_COUNT: return Options.getGlobalBufferCount();
115 case GLOBAL_BUFFER_SIZE: return Options.getGlobalBufferSize();
116 case THREAD_BUFFER_SIZE: return Options.getThreadBufferSize();
117 case MAX_CHUNK_SIZE: return Options.getMaxChunkSize();
118 case SAMPLE_THREADS: return Options.getSampleThreads();
119 default: throw new RuntimeException("Unknown option " + name);
120 }
121 }
122 }