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     private final List<String> enabledAppContextCommands = Collections.synchronizedList(new ArrayList<>());
  40     private final List<String> disabledAppContextCommands = Collections.synchronizedList(new ArrayList<>());
  41
  42     @Override
  43     public boolean eventEnabled(EventRule rule) {
  44         enabledEventCommands.add(rule);
  45         return true;
  46     }
  47
  48     @Override
  49     public boolean eventDisabled(String name) {
  50         disabledEventCommands.add(name);
  51         return true;
  52     }
  53
  54     @Override
  55     public boolean appContextEnabled(String contextRetrieverName, String contextName) {
  56         enabledAppContextCommands.add(contextRetrieverName + ':' + contextName);
  57         return true;
  58     }
  59
  60     @Override
  61     public boolean appContextDisabled(String contextRetrieverName, String contextName) {
  62         disabledAppContextCommands.add(contextRetrieverName + ':' + contextName);
  63         return true;
  64     }
  65
  66     /**
  67      * Not yet implemented
  68      */
  69     @Override
  70     public List<String> listAvailableEvents() {
  71         // TODO NYI
  72         return Collections.EMPTY_LIST;
  73     }
  74
  75     /**
  76      * @return The "enable-event" commands that were received, since
  77      *         instantiation or the last {@link #clearAllCommands}.
  78      */
  79     public List<EventRule> getEnabledEventCommands() {
  80         synchronized (enabledEventCommands) {
  81             return new ArrayList<>(enabledEventCommands);
  82         }
  83     }
  84
  85     /**
  86      * @return The "disable-event" commands that were received, since
  87      *         instantiation or the last {@link #clearAllCommands}.
  88      */
  89     public List<String> getDisabledEventCommands() {
  90         synchronized (disabledEventCommands) {
  91             return new ArrayList<>(disabledEventCommands);
  92         }
  93     }
  94
  95     /**
  96      * @return The "add-context" commands that were received since instantiation
  97      *         or the last {@link #clearAllCommands}.
  98      */
  99     public List<String> getEnabledAppContextCommands() {
 100         synchronized (enabledAppContextCommands) {
 101             return new ArrayList<>(enabledAppContextCommands);
 102         }
 103     }
 104
 105     /**
 106      * Return the number of "context disabled" commands received.
 107      *
 108      * There is no equivalent command in the lttng CLI, but the sessiond will
 109      * send such messages through the agent socket when a session is destroyed
 110      * and had contexts enabled.
 111      *
 112      * @return The number of "context disabled" commands received.
 113      */
 114     public List<String> getDisabledAppContextCommands() {
 115         synchronized (disabledAppContextCommands) {
 116             return new ArrayList<>(disabledAppContextCommands);
 117         }
 118     }
 119
 120     /**
 121      * Clear all tracked data.
 122      */
 123     public void clearAllCommands() {
 124         enabledEventCommands.clear();
 125         disabledEventCommands.clear();
 126         enabledAppContextCommands.clear();
 127         disabledAppContextCommands.clear();
 128     }
 129
 130 }