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2 * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
3 * Copyright (C) 2014 - Christian Babeux <christian.babeux@efficios.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to
7 * deal in the Software without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 import java
.io
.IOException
;
26 import org
.apache
.log4j
.Appender
;
27 import org
.apache
.log4j
.BasicConfigurator
;
28 import org
.apache
.log4j
.Logger
;
29 import org
.lttng
.ust
.agent
.log4j
.LttngLogAppender
;
32 * Example application using the LTTng-UST Java JUL agent.
34 * @author Alexandre Montplaisir
35 * @author Christian Babeux
39 private static final Logger HELLO_LOG
= Logger
.getLogger(Hello
.class);
45 * Command-line arguments
47 * @throws InterruptedException
49 public static void main(String args
[]) throws IOException
, InterruptedException
{
50 /* Start with the default Log4j configuration, which logs to console */
51 BasicConfigurator
.configure();
54 * Add a LTTng log appender to the logger, which will also send the
55 * logged events to UST.
57 Appender lttngAppender
= new LttngLogAppender();
58 HELLO_LOG
.addAppender(lttngAppender
);
61 * Here we've set up the appender programmatically, but it could also be
62 * defined at runtime, by reading a configuration file for example:
64 // PropertyConfigurator.configure(fileName);
67 * Gives you time to do some lttng commands before any event is hit.
71 /* Trigger a tracing event using the Log4j Logger created before. */
72 HELLO_LOG
.info("Hello World, the answer is " + 42);
74 System
.out
.println("Firing second event in 5 seconds...");
76 HELLO_LOG
.info("Hello World delayed...");
78 lttngAppender
.close();
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