1 /*
2 * Copyright (c) 2016, 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.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 if (LogTag.JFR_DCMD.shouldLog(LogLevel.DEBUG)) {
74 Logger.log(LogTag.JFR_DCMD, LogLevel.DEBUG, "Executing DCmdConfigure: repositorypath=" + repositoryPath +
75 ", dumppath=" + dumpPath +
76 ", stackdepth=" + stackDepth +
77 ", globalbuffercount=" + globalBufferCount +
78 ", globalbuffersize=" + globalBufferSize +
79 ", thread_buffer_size" + threadBufferSize +
80 ", memorysize" + memorySize +
81 ", maxchunksize=" + maxChunkSize +
82 ", samplethreads" + sampleThreads);
83 }
84
85
86 boolean updated = false;
87 if (repositoryPath != null) {
88 try {
89 SafePath s = new SafePath(repositoryPath);
90 Repository.getRepository().setBasePath(s);
91 Logger.log(LogTag.JFR, LogLevel.INFO, "Base repository path set to " + repositoryPath);
92 } catch (Exception e) {
93 throw new DCmdException("Could not use " + repositoryPath + " as repository. " + e.getMessage(), e);
94 }
95 printRepositoryPath();
96 updated = true;
97 }
98
99 if (dumpPath != null) {
100 Options.setDumpPath(new SafePath(dumpPath));
101 Logger.log(LogTag.JFR, LogLevel.INFO, "Emergency dump path set to " + dumpPath);
102 printDumpPath();
103 updated = true;
104 }
105
106 if (stackDepth != null) {
107 Options.setStackDepth(stackDepth);
108 Logger.log(LogTag.JFR, LogLevel.INFO, "Stack depth set to " + stackDepth);
109 printStackDepth();
110 updated = true;
111 }
112
113 if (globalBufferCount != null) {
114 Options.setGlobalBufferCount(globalBufferCount);
115 Logger.log(LogTag.JFR, LogLevel.INFO, "Global buffer count set to " + globalBufferCount);
116 printGlobalBufferCount();
117 updated = true;
118 }
119
120 if (globalBufferSize != null) {
121 Options.setGlobalBufferSize(globalBufferSize);
122 Logger.log(LogTag.JFR, LogLevel.INFO, "Global buffer size set to " + globalBufferSize);
123 printGlobalBufferSize();
124 updated = true;
125 }
126
127 if (threadBufferSize != null) {
128 Options.setThreadBufferSize(threadBufferSize);
129 Logger.log(LogTag.JFR, LogLevel.INFO, "Thread buffer size set to " + threadBufferSize);
130 printThreadBufferSize();
131 updated = true;
132 }
133
134 if (memorySize != null) {
135 Options.setMemorySize(memorySize);
136 Logger.log(LogTag.JFR, LogLevel.INFO, "Memory size set to " + memorySize);
137 printMemorySize();
138 updated = true;
139 }
140
141 if (maxChunkSize != null) {
142 Options.setMaxChunkSize(maxChunkSize);
143 Logger.log(LogTag.JFR, LogLevel.INFO, "Max chunk size set to " + maxChunkSize);
144 printMaxChunkSize();
145 updated = true;
146 }
147
148 if (sampleThreads != null) {
149 Options.setSampleThreads(sampleThreads);
150 Logger.log(LogTag.JFR, LogLevel.INFO, "Sample threads set to " + sampleThreads);
151 printSampleThreads();
152 updated = true;
153 }
154
155 if (!updated) {
156 println("Current configuration:");
157 println();
158 printRepositoryPath();
159 printStackDepth();
160 printGlobalBufferCount();
161 printGlobalBufferSize();
162 printThreadBufferSize();
163 printMemorySize();
164 printMaxChunkSize();
165 printSampleThreads();
166 }
167 return getResult();
168 }
169
170 private void printRepositoryPath() {
171 print("Repository path: ");
172 printPath(Repository.getRepository().getRepositoryPath());
173 println();
174 }
175
176 private void printDumpPath() {
177 print("Dump path: ");
178 printPath(Options.getDumpPath());
179 println();
180 }
181
182 private void printSampleThreads() {
183 println("Sample threads: " + Options.getSampleThreads());
184 }
185
186 private void printStackDepth() {
187 println("Stack depth: " + Options.getStackDepth());
188 }
189
190 private void printGlobalBufferCount() {
191 println("Global buffer count: " + Options.getGlobalBufferCount());
192 }
193
194 private void printGlobalBufferSize() {
195 print("Global buffer size: ");
196 printBytes(Options.getGlobalBufferSize(), " ");
197 println();
198 }
199
200 private void printThreadBufferSize() {
201 print("Thread buffer size: ");
202 printBytes(Options.getThreadBufferSize(), " ");
203 println();
204 }
205
206 private void printMemorySize() {
207 print("Memory size: ");
208 printBytes(Options.getMemorySize(), " ");
209 println();
210 }
211
212 private void printMaxChunkSize() {
213 print("Max chunk size: ");
214 printBytes(Options.getMaxChunkSize(), " ");
215 println();
216 }
217 }