1 /*
2 * Copyright (c) 2016, 2019, 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.internal.dcmd;
27
28
29
30 import jdk.jfr.internal.LogLevel;
31 import jdk.jfr.internal.LogTag;
32 import jdk.jfr.internal.Logger;
33 import jdk.jfr.internal.Options;
34 import jdk.jfr.internal.Repository;
35 import jdk.jfr.internal.SecuritySupport.SafePath;
36
37 /**
38 * JFR.configure - invoked from native
39 *
40 */
41 //Instantiated by native
42 final class DCmdConfigure extends AbstractDCmd {
43 /**
44 * Execute JFR.configure.
45 *
46 * @param repositoryPath the path
47 * @param dumpPath path to dump to on fatal error (oom)
48 * @param stackDepth depth of stack traces
49 * @param globalBufferCount number of global buffers
50 * @param globalBufferSize size of global buffers
51 * @param threadBufferSize size of thread buffer for events
52 * @param maxChunkSize threshold at which a new chunk is created in the disk repository
53 * @param sampleThreads if thread sampling should be enabled
54 *
55 * @return result
56
57 * @throws DCmdException
58 * if the dump could not be completed
59 */
60 public String execute
61 (
62 String repositoryPath,
63 String dumpPath,
64 Integer stackDepth,
65 Long globalBufferCount,
66 Long globalBufferSize,
67 Long threadBufferSize,
68 Long memorySize,
69 Long maxChunkSize,
70 Boolean sampleThreads
71
72 ) throws DCmdException {
73 boolean updated = false;
74 if (repositoryPath != null) {
75 try {
76 SafePath s = new SafePath(repositoryPath);
77 Repository.getRepository().setBasePath(s);
78 Logger.log(LogTag.JFR, LogLevel.INFO, "Base repository path set to " + repositoryPath);
79 } catch (Exception e) {
80 throw new DCmdException("Could not use " + repositoryPath + " as repository. " + e.getMessage(), e);
81 }
82 printRepositoryPath();
83 updated = true;
84 }
85
86 if (dumpPath != null) {
87 Options.setDumpPath(new SafePath(dumpPath));
88 Logger.log(LogTag.JFR, LogLevel.INFO, "Emergency dump path set to " + dumpPath);
89 printDumpPath();
90 updated = true;
91 }
92
93 if (stackDepth != null) {
94 Options.setStackDepth(stackDepth);
95 Logger.log(LogTag.JFR, LogLevel.INFO, "Stack depth set to " + stackDepth);
96 printStackDepth();
97 updated = true;
98 }
99
100 if (globalBufferCount != null) {
101 Options.setGlobalBufferCount(globalBufferCount);
102 Logger.log(LogTag.JFR, LogLevel.INFO, "Global buffer count set to " + globalBufferCount);
103 printGlobalBufferCount();
104 updated = true;
105 }
106
107 if (globalBufferSize != null) {
108 Options.setGlobalBufferSize(globalBufferSize);
109 Logger.log(LogTag.JFR, LogLevel.INFO, "Global buffer size set to " + globalBufferSize);
110 printGlobalBufferSize();
111 updated = true;
112 }
113
114 if (threadBufferSize != null) {
115 Options.setThreadBufferSize(threadBufferSize);
116 Logger.log(LogTag.JFR, LogLevel.INFO, "Thread buffer size set to " + threadBufferSize);
117 printThreadBufferSize();
118 updated = true;
119 }
120
121 if (memorySize != null) {
122 Options.setMemorySize(memorySize);
123 Logger.log(LogTag.JFR, LogLevel.INFO, "Memory size set to " + memorySize);
124 printMemorySize();
125 updated = true;
126 }
127
128 if (maxChunkSize != null) {
129 Options.setMaxChunkSize(maxChunkSize);
130 Logger.log(LogTag.JFR, LogLevel.INFO, "Max chunk size set to " + maxChunkSize);
131 printMaxChunkSize();
132 updated = true;
133 }
134
135 if (sampleThreads != null) {
136 Options.setSampleThreads(sampleThreads);
137 Logger.log(LogTag.JFR, LogLevel.INFO, "Sample threads set to " + sampleThreads);
138 printSampleThreads();
139 updated = true;
140 }
141
142 if (!updated) {
143 println("Current configuration:");
144 println();
145 printRepositoryPath();
146 printStackDepth();
147 printGlobalBufferCount();
148 printGlobalBufferSize();
149 printThreadBufferSize();
150 printMemorySize();
151 printMaxChunkSize();
152 printSampleThreads();
153 }
154 return getResult();
155 }
156
157 private void printRepositoryPath() {
158 print("Repository path: ");
159 printPath(Repository.getRepository().getRepositoryPath());
160 println();
161 }
162
163 private void printDumpPath() {
164 print("Dump path: ");
165 printPath(Options.getDumpPath());
166 println();
167 }
168
169 private void printSampleThreads() {
170 println("Sample threads: " + Options.getSampleThreads());
171 }
172
173 private void printStackDepth() {
174 println("Stack depth: " + Options.getStackDepth());
175 }
176
177 private void printGlobalBufferCount() {
178 println("Global buffer count: " + Options.getGlobalBufferCount());
179 }
180
181 private void printGlobalBufferSize() {
182 print("Global buffer size: ");
183 printBytes(Options.getGlobalBufferSize(), " ");
184 println();
185 }
186
187 private void printThreadBufferSize() {
188 print("Thread buffer size: ");
189 printBytes(Options.getThreadBufferSize(), " ");
190 println();
191 }
192
193 private void printMemorySize() {
194 print("Memory size: ");
195 printBytes(Options.getMemorySize(), " ");
196 println();
197 }
198
199 private void printMaxChunkSize() {
200 print("Max chunk size: ");
201 printBytes(Options.getMaxChunkSize(), " ");
202 println();
203 }
204 }