lttng-ust-java-tests-common/src/test/java/org/lttng/ust/agent/integration/client/TcpClientDebugListener.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.integration.client;
  20
  21 import java.util.ArrayList;
  22 import java.util.Collections;
  23 import java.util.List;
  24
  25 import org.lttng.ust.agent.client.ILttngTcpClientListener;
  26 import org.lttng.ust.agent.session.EventRule;
  27
  28 /**
  29  * TCP client listener used for test. Instead of "handling" commands, it just
  30  * keep tracks of commands it receives.
  31  *
  32  * @author Alexandre Montplaisir
  33  */
  34 public class TcpClientDebugListener implements ILttngTcpClientListener {
  35
  36     private final List<EventRule> enabledEventCommands = Collections.synchronizedList(new ArrayList<>());
  37     private final List<String> disabledEventCommands = Collections.synchronizedList(new ArrayList<>());
  38
  39     @Override
  40     public boolean eventEnabled(EventRule rule) {
  41         enabledEventCommands.add(rule);
  42         return true;
  43     }
  44
  45     @Override
  46     public boolean eventDisabled(String name) {
  47         disabledEventCommands.add(name);
  48         return true;
  49     }
  50
  51     /**
  52      * Not yet implemented
  53      */
  54     @Override
  55     public List<String> listAvailableEvents() {
  56         // TODO NYI
  57         return Collections.EMPTY_LIST;
  58     }
  59
  60     /**
  61      * @return The "enable-event" commands that were received, since
  62      *         instantiation or the last {@link #clearAllCommands}.
  63      */
  64     public List<EventRule> getEnabledEventCommands() {
  65         synchronized (enabledEventCommands) {
  66             return new ArrayList<>(enabledEventCommands);
  67         }
  68     }
  69
  70     /**
  71      * @return The "disable-event" commands that were received, since
  72      *         instantiation or the last {@link #clearAllCommands}.
  73      */
  74     public List<String> getDisabledEventCommands() {
  75         synchronized (disabledEventCommands) {
  76             return new ArrayList<>(disabledEventCommands);
  77         }
  78     }
  79
  80     /**
  81      * Clear all tracked data.
  82      */
  83     public void clearAllCommands() {
  84         enabledEventCommands.clear();
  85         disabledEventCommands.clear();
  86     }
  87
  88 }