2 * Copyright (C) 2015, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 package org
.lttng
.ust
.agent
.utils
;
21 import java
.io
.IOException
;
22 import java
.util
.Arrays
;
23 import java
.util
.List
;
25 import org
.lttng
.ust
.agent
.jul
.LttngLogHandler
;
26 import org
.lttng
.ust
.agent
.log4j
.LttngLogAppender
;
27 import org
.lttng
.ust
.agent
.utils
.LttngSession
.Domain
;
30 * Utility methods to help with UST-Java tests
32 public final class MiscTestUtils
{
34 private MiscTestUtils() {}
37 * Check the the JUL native library is available, effectively allowing LTTng
38 * JUL handlers to be used.
40 * @return True if JUL works fine, false if it does not.
42 public static boolean checkForJulLibrary() {
44 LttngLogHandler testHandler
= new LttngLogHandler();
46 } catch (SecurityException
| IOException e
) {
53 * Check the the Log4j native library is available, effectively allowing
54 * LTTng Log4j appenders to be used.
56 * @return True if Log4j works fine, false if it does not.
58 public static boolean checkForLog4jLibrary() {
60 LttngLogAppender testAppender
= new LttngLogAppender();
62 } catch (SecurityException
| IOException e
) {
69 * Check that lttng-tools and babeltrace are installed on the system and
73 * The tracing domain to test for (we will try to setup a session
75 * @return True if the environment should allow tracing fine, false if there
78 public static boolean checkForLttngTools(Domain domain
) {
79 try (LttngSession session
= new LttngSession(null, domain
)) {
80 boolean ret1
= session
.enableAllEvents();
81 boolean ret2
= session
.start();
82 boolean ret3
= session
.stop();
84 * "lttng view" also tests that Babeltrace is installed and working
86 List
<String
> contents
= session
.view();
87 return (ret1
&& ret2
&& ret3
&& contents
.isEmpty());
92 * Check if there is a user session daemon currently running on the system.
93 * It needs to be of the same user as the application running this program.
95 * @return If there is a user session daemon currently running
97 public static boolean checkForUserSessiond() {
98 String userName
= System
.getProperty("user.name");
100 /* The user name is truncated to 7 characters in "ps" */
101 String shortUserName
= userName
.substring(0, Math
.min(userName
.length(), 7));
103 List
<String
> command
= Arrays
.asList("ps", "-e", "u");
104 List
<String
> output
= ShellUtils
.getOutputFromCommand(false, command
);
105 return output
.stream()
106 .filter(s
-> s
.contains("lttng-sessiond"))
107 .anyMatch(s
-> s
.startsWith(shortUserName
));
111 * Check if there is a root user session daemon daemon currently running on
114 * @return If there is a root session daemon currently running
116 public static boolean checkForRootSessiond() {
117 List
<String
> command
= Arrays
.asList("ps", "-e", "u");
118 List
<String
> output
= ShellUtils
.getOutputFromCommand(false, command
);
119 return output
.stream()
120 .filter(s
-> s
.contains("lttng-sessiond"))
121 .anyMatch(s
-> s
.startsWith("root"));