lttng-ust-java-tests-jul/src/test/java/org/lttng/ust/agent/utils/JulTestUtils.java

   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
  19 package org.lttng.ust.agent.utils;
  20
  21 import java.io.IOException;
  22 import java.util.logging.Level;
  23 import java.util.logging.Logger;
  24
  25 import org.lttng.ust.agent.jul.LttngLogHandler;
  26
  27 /**
  28  * Utility methods for JUL tests
  29  */
  30 public final class JulTestUtils {
  31
  32     private JulTestUtils() {
  33     }
  34
  35     /**
  36      * Check the the JUL native library is available, effectively allowing LTTng
  37      * JUL handlers to be used.
  38      *
  39      * @return True if JUL works fine, false if it does not.
  40      */
  41     public static boolean checkForJulLibrary() {
  42         try {
  43             LttngLogHandler testHandler = new LttngLogHandler();
  44             testHandler.close();
  45         } catch (SecurityException | IOException e) {
  46             return false;
  47         }
  48         return true;
  49     }
  50
  51     /**
  52      * Send 10 dummy events through the provided logger
  53      *
  54      * @param logger
  55      *            The logger to use to send events
  56      */
  57     public static void send10EventsTo(Logger logger) {
  58         String a = new String("a");
  59         Object[] params = { a, new String("b"), new Object() };
  60
  61         // Levels are FINE, FINER, FINEST, INFO, SEVERE, WARNING
  62         logger.fine("A fine level message");
  63         logger.finer("A finer level message");
  64         logger.finest("A finest level message");
  65         logger.info("A info level message");
  66         logger.severe("A severe level message");
  67         logger.warning("A warning level message");
  68         logger.warning("Another warning level message");
  69         logger.log(Level.WARNING, "A warning message using Logger.log()");
  70         logger.log(Level.INFO, "A message with one parameter", a);
  71         logger.log(Level.INFO, "A message with parameters", params);
  72     }
  73 }