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2b408e85 AM |
1 | /* |
2 | * Copyright (C) 2015, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com> | |
3 | * | |
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. | |
8 | * | |
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. | |
13 | * | |
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. | |
17 | */ | |
18 | ||
8576633f AM |
19 | package org.lttng.ust.agent.utils; |
20 | ||
21 | import java.io.IOException; | |
8576633f AM |
22 | import java.util.Arrays; |
23 | import java.util.List; | |
24 | ||
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; | |
28 | ||
29 | /** | |
30 | * Utility methods to help with UST-Java tests | |
31 | */ | |
24b260d9 | 32 | public final class MiscTestUtils { |
8576633f | 33 | |
24b260d9 | 34 | private MiscTestUtils() {} |
8576633f AM |
35 | |
36 | /** | |
37 | * Check the the JUL native library is available, effectively allowing LTTng | |
38 | * JUL handlers to be used. | |
39 | * | |
40 | * @return True if JUL works fine, false if it does not. | |
41 | */ | |
42 | public static boolean checkForJulLibrary() { | |
43 | try { | |
44 | LttngLogHandler testHandler = new LttngLogHandler(); | |
45 | testHandler.close(); | |
46 | } catch (SecurityException | IOException e) { | |
47 | return false; | |
48 | } | |
49 | return true; | |
50 | } | |
51 | ||
52 | /** | |
53 | * Check the the Log4j native library is available, effectively allowing | |
54 | * LTTng Log4j appenders to be used. | |
55 | * | |
56 | * @return True if Log4j works fine, false if it does not. | |
57 | */ | |
58 | public static boolean checkForLog4jLibrary() { | |
59 | try { | |
60 | LttngLogAppender testAppender = new LttngLogAppender(); | |
61 | testAppender.close(); | |
62 | } catch (SecurityException | IOException e) { | |
63 | return false; | |
64 | } | |
65 | return true; | |
66 | } | |
67 | ||
68 | /** | |
69 | * Check that lttng-tools and babeltrace are installed on the system and | |
70 | * working. | |
71 | * | |
72 | * @param domain | |
73 | * The tracing domain to test for (we will try to setup a session | |
74 | * with this domain) | |
75 | * @return True if the environment should allow tracing fine, false if there | |
76 | * was an error | |
77 | */ | |
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(); | |
83 | /* | |
84 | * "lttng view" also tests that Babeltrace is installed and working | |
85 | */ | |
86 | List<String> contents = session.view(); | |
87 | return (ret1 && ret2 && ret3 && contents.isEmpty()); | |
88 | } | |
89 | } | |
90 | ||
8a0613fa AM |
91 | /** |
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. | |
94 | * | |
95 | * @return If there is a user session daemon currently running | |
96 | */ | |
8576633f AM |
97 | public static boolean checkForUserSessiond() { |
98 | String userName = System.getProperty("user.name"); | |
99 | ||
100 | /* The user name is truncated to 7 characters in "ps" */ | |
101 | String shortUserName = userName.substring(0, Math.min(userName.length(), 7)); | |
102 | ||
103 | List<String> command = Arrays.asList("ps", "-e", "u"); | |
7dfd1adf | 104 | List<String> output = ShellUtils.getOutputFromCommand(false, command); |
8576633f AM |
105 | return output.stream() |
106 | .filter(s -> s.contains("lttng-sessiond")) | |
107 | .anyMatch(s -> s.startsWith(shortUserName)); | |
108 | } | |
109 | ||
8a0613fa AM |
110 | /** |
111 | * Check if there is a root user session daemon daemon currently running on | |
112 | * the system. | |
113 | * | |
114 | * @return If there is a root session daemon currently running | |
115 | */ | |
8576633f AM |
116 | public static boolean checkForRootSessiond() { |
117 | List<String> command = Arrays.asList("ps", "-e", "u"); | |
7dfd1adf | 118 | List<String> output = ShellUtils.getOutputFromCommand(false, command); |
8576633f AM |
119 | return output.stream() |
120 | .filter(s -> s.contains("lttng-sessiond")) | |
121 | .anyMatch(s -> s.startsWith("root")); | |
122 | } | |
123 | ||
8576633f | 124 | } |