Move to kernel style SPDX license identifiers

[lttng-ust.git] / liblttng-ust-java-agent / java / lttng-ust-agent-common / org / lttng / ust / agent / client / ILttngTcpClientListener.java

diff --git a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/ILttngTcpClientListener.java b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/ILttngTcpClientListener.java
index 662b998283eb33902fd6d2e6ff15d95c4571cf8b..e6edb567d4e5c668166bff4334eb82ad1ba5f58a 100644 (file)
--- a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/ILttngTcpClientListener.java
+++ b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/ILttngTcpClientListener.java
@@ -1,22 +1,16 @@
 /*
- * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Copyright (C) 2015 EfficiOS Inc.
+ * Copyright (C) 2015 Alexandre Montplaisir <alexmonthy@efficios.com>
  */
 
 package org.lttng.ust.agent.client;
 
+import java.util.Collection;
+
+import org.lttng.ust.agent.session.EventRule;
+
 /**
  * TCP client listener interface.
  *
@@ -30,14 +24,14 @@ public interface ILttngTcpClientListener {
 
        /**
         * Callback for the TCP client to notify the listener agent that a request
-        * for enabling an event was sent from the session daemon.
+        * for enabling an event rule was sent from the session daemon.
         *
-        * @param eventName
-        *            The name of the event that was requested to be enabled.
+        * @param eventRule
+        *            The event rule that was requested to be enabled
         * @return Since we do not track individual sessions, right now this command
         *         cannot fail. It will always return true.
         */
-       boolean eventEnabled(String eventName);
+       boolean eventEnabled(EventRule eventRule);
 
        /**
         * Callback for the TCP client to notify the listener agent that a request
@@ -51,9 +45,42 @@ public interface ILttngTcpClientListener {
        boolean eventDisabled(String eventName);
 
        /**
-        * List the all events currently enabled in the current tracing sessions.
+        * Callback for the TCP client to notify the listener agent that a request
+        * for enabling an application-specific context was sent from the session
+        * daemon.
+        *
+        * @param contextRetrieverName
+        *            The name of the retriever in which the context is present.
+        *            This is used to namespace the contexts.
+        * @param contextName
+        *            The name of the context that was requested to be enabled
+        * @return Since we do not track individual sessions, right now this command
+        *         cannot fail. It will always return true.
+        */
+       boolean appContextEnabled(String contextRetrieverName, String contextName);
+
+       /**
+        * Callback for the TCP client to notify the listener agent that a request
+        * for disabling an application-specific context was sent from the session
+        * daemon.
+        *
+        * @param contextRetrieverName
+        *            The name of the retriever in which the context is present.
+        *            This is used to namespace the contexts.
+        * @param contextName
+        *            The name of the context that was requested to be disabled.
+        * @return True if the command completed successfully, false if we should
+        *         report an error (context was not previously enabled for example)
+        */
+       boolean appContextDisabled(String contextRetrieverName, String contextName);
+
+       /**
+        * List the events that are available in the agent's tracing domain.
+        *
+        * In Java terms, this means loggers that have at least one LTTng log
+        * handler of their corresponding domain attached.
         *
-        * @return The list of enabled events
+        * @return The list of available events
         */
-       Iterable<String> listEnabledEvents();
+       Collection<String> listAvailableEvents();
 }