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43e5396b DG |
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.jul; | |
19 | ||
20 | import java.lang.String; | |
21 | import java.util.logging.Handler; | |
22 | import java.util.logging.LogRecord; | |
23 | import java.util.logging.LogManager; | |
a15440fd | 24 | import java.util.logging.Level; |
3c3a0129 | 25 | import java.util.ArrayList; |
a15440fd | 26 | import java.util.HashMap; |
43e5396b DG |
27 | |
28 | import org.lttng.ust.jul.LTTngUst; | |
29 | ||
a15440fd DG |
30 | /* Note: This is taken from the LTTng tools ABI. */ |
31 | class LTTngLogLevelABI { | |
32 | /* Loglevel type. */ | |
33 | public static final int LOGLEVEL_TYPE_ALL = 0; | |
34 | public static final int LOGLEVEL_TYPE_RANGE = 1; | |
35 | public static final int LOGLEVEL_TYPE_SINGLE = 2; | |
36 | } | |
37 | ||
43e5396b | 38 | public class LTTngLogHandler extends Handler { |
5b5ffa03 DG |
39 | /* |
40 | * Indicate if the enable all event has been seen and if yes logger that we | |
41 | * enabled should use the loglevel/type below. | |
42 | */ | |
43 | public int logLevelUseAll = 0; | |
3c3a0129 DG |
44 | public ArrayList<LTTngLogLevel> logLevelsAll = |
45 | new ArrayList<LTTngLogLevel>(); | |
5b5ffa03 | 46 | |
9aabed2d DG |
47 | /* Am I a root Log Handler. */ |
48 | public int is_root = 0; | |
49 | ||
43e5396b DG |
50 | public LogManager logManager; |
51 | ||
5b5ffa03 DG |
52 | /* Indexed by name and corresponding LTTngEvent. */ |
53 | private HashMap<String, LTTngEvent> eventMap = | |
54 | new HashMap<String, LTTngEvent>(); | |
a15440fd | 55 | |
43e5396b DG |
56 | public LTTngLogHandler(LogManager logManager) { |
57 | super(); | |
58 | ||
59 | this.logManager = logManager; | |
60 | ||
61 | /* Initialize LTTng UST tracer. */ | |
62 | LTTngUst.init(); | |
63 | } | |
64 | ||
3c3a0129 DG |
65 | /** |
66 | * Add event to handler hash map if new. | |
67 | * | |
68 | * @return 0 if it did not exist else 1. | |
69 | */ | |
70 | public int setEvent(LTTngEvent new_event) { | |
71 | LTTngEvent event; | |
72 | ||
73 | event = eventMap.get(new_event.name); | |
74 | if (event == null) { | |
75 | eventMap.put(new_event.name, new_event); | |
76 | /* Did not exists. */ | |
77 | return 0; | |
78 | } else { | |
79 | /* Add new event loglevel to existing event. */ | |
80 | event.logLevels.addAll(new_event.logLevels); | |
81 | /* Already exists. */ | |
82 | return 1; | |
83 | } | |
a15440fd DG |
84 | } |
85 | ||
87d64abb DG |
86 | /* |
87 | * Cleanup this handler state meaning put it back to a vanilla state. | |
88 | */ | |
89 | public void clear() { | |
90 | this.eventMap.clear(); | |
91 | this.logLevelsAll.clear(); | |
92 | } | |
93 | ||
43e5396b DG |
94 | @Override |
95 | public void close() throws SecurityException {} | |
96 | ||
97 | @Override | |
98 | public void flush() {} | |
99 | ||
100 | @Override | |
101 | public void publish(LogRecord record) { | |
a15440fd | 102 | int fire_tp = 0, rec_log_level, ev_type, ev_log_level; |
5b5ffa03 | 103 | LTTngEvent event; |
a15440fd | 104 | LTTngLogLevel lttngLogLevel; |
5b5ffa03 | 105 | String logger_name = record.getLoggerName(); |
a15440fd | 106 | |
5b5ffa03 DG |
107 | /* Get back the event if any and check for loglevel. */ |
108 | event = eventMap.get(logger_name); | |
109 | if (event != null) { | |
3c3a0129 DG |
110 | for (LTTngLogLevel ev_log : event.logLevels) { |
111 | /* Get record and event log level. */ | |
112 | rec_log_level = record.getLevel().intValue(); | |
113 | ev_log_level = ev_log.level; | |
114 | ||
115 | switch (ev_log.type) { | |
116 | case LTTngLogLevelABI.LOGLEVEL_TYPE_RANGE: | |
117 | if (ev_log_level <= rec_log_level) { | |
118 | fire_tp = 1; | |
119 | } | |
120 | break; | |
121 | case LTTngLogLevelABI.LOGLEVEL_TYPE_SINGLE: | |
122 | if (ev_log_level == rec_log_level) { | |
123 | fire_tp = 1; | |
124 | } | |
125 | break; | |
126 | case LTTngLogLevelABI.LOGLEVEL_TYPE_ALL: | |
a15440fd | 127 | fire_tp = 1; |
3c3a0129 | 128 | break; |
a15440fd | 129 | } |
3c3a0129 DG |
130 | |
131 | /* | |
132 | * If we match, stop right now else continue to the next | |
133 | * loglevel contained in the event. | |
134 | */ | |
135 | if (fire_tp == 1) { | |
136 | break; | |
a15440fd | 137 | } |
a15440fd DG |
138 | } |
139 | } else { | |
140 | /* No loglevel attached thus fire tracepoint. */ | |
141 | fire_tp = 1; | |
142 | } | |
143 | ||
144 | if (fire_tp == 0) { | |
145 | return; | |
146 | } | |
147 | ||
43e5396b DG |
148 | /* |
149 | * Specific tracepoing designed for JUL events. The source class of the | |
150 | * caller is used for the event name, the raw message is taken, the | |
151 | * loglevel of the record and the thread ID. | |
152 | */ | |
9aabed2d DG |
153 | if (this.is_root == 1) { |
154 | LTTngUst.tracepointS(record.getMessage(), | |
155 | record.getLoggerName(), record.getSourceClassName(), | |
156 | record.getSourceMethodName(), record.getMillis(), | |
157 | record.getLevel().intValue(), record.getThreadID()); | |
158 | } else { | |
159 | LTTngUst.tracepointU(record.getMessage(), | |
160 | record.getLoggerName(), record.getSourceClassName(), | |
161 | record.getSourceMethodName(), record.getMillis(), | |
162 | record.getLevel().intValue(), record.getThreadID()); | |
163 | } | |
43e5396b DG |
164 | } |
165 | } |