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501f6777 CB |
1 | /* |
2 | * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
11 | * for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public License | |
14 | * along with this library; if not, write to the Free Software Foundation, | |
15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
18 | package org.lttng.ust.agent.jul; | |
19 | ||
20 | import java.lang.String; | |
21 | ||
22 | import java.util.logging.Handler; | |
23 | import java.util.logging.LogRecord; | |
24 | ||
25 | class LTTngLogHandler extends Handler { | |
26 | private Boolean is_root; | |
27 | ||
28 | public LTTngLogHandler(Boolean isRoot) { | |
29 | super(); | |
30 | this.is_root = isRoot; | |
31 | /* Initialize LTTng UST tracer. */ | |
32 | try { | |
33 | System.loadLibrary("lttng-ust-jul-jni"); //$NON-NLS-1$ | |
34 | } catch (SecurityException e) { | |
35 | e.printStackTrace(); | |
36 | } catch (UnsatisfiedLinkError e) { | |
37 | e.printStackTrace(); | |
38 | } catch (NullPointerException e) { | |
39 | /* Should never happen */ | |
40 | e.printStackTrace(); | |
41 | } | |
42 | } | |
43 | ||
44 | public Boolean isRoot() { | |
45 | return this.is_root; | |
46 | } | |
47 | ||
48 | @Override | |
49 | public void close() throws SecurityException {} | |
50 | ||
51 | @Override | |
52 | public void flush() {} | |
53 | ||
54 | @Override | |
55 | public void publish(LogRecord record) { | |
56 | /* | |
57 | * Specific tracepoing designed for JUL events. The source class of the | |
58 | * caller is used for the event name, the raw message is taken, the | |
59 | * loglevel of the record and the thread ID. | |
60 | */ | |
61 | if (this.is_root) { | |
62 | tracepointS(record.getMessage(), | |
63 | record.getLoggerName(), record.getSourceClassName(), | |
64 | record.getSourceMethodName(), record.getMillis(), | |
65 | record.getLevel().intValue(), record.getThreadID()); | |
66 | } else { | |
67 | tracepointU(record.getMessage(), | |
68 | record.getLoggerName(), record.getSourceClassName(), | |
69 | record.getSourceMethodName(), record.getMillis(), | |
70 | record.getLevel().intValue(), record.getThreadID()); | |
71 | } | |
72 | } | |
73 | ||
74 | /* Use for a user session daemon. */ | |
75 | private native void tracepointU(String msg, String logger_name, String class_name, | |
76 | String method_name, long millis, int log_level, int thread_id); | |
77 | ||
78 | /* Use for a root session daemon. */ | |
79 | private native void tracepointS(String msg, String logger_name, String class_name, | |
80 | String method_name, long millis, int log_level, int thread_id); | |
81 | } |