X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=liblttng-ust-java-agent%2Fjava%2Flttng-ust-agent-common%2Forg%2Flttng%2Fust%2Fagent%2Fclient%2FILttngTcpClientListener.java;fp=liblttng-ust-java-agent%2Fjava%2Flttng-ust-agent-common%2Forg%2Flttng%2Fust%2Fagent%2Fclient%2FILttngTcpClientListener.java;h=662b998283eb33902fd6d2e6ff15d95c4571cf8b;hb=3165c2f51abe3093f4c5512b499e33cb380b387d;hp=0000000000000000000000000000000000000000;hpb=932535693bb8a719c40f63141dbfac786388ed4a;p=lttng-ust.git

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
new file mode 100644
index 00000000..662b9982
--- /dev/null
+++ b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/ILttngTcpClientListener.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
+ *
+ * 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
+ */
+
+package org.lttng.ust.agent.client;
+
+/**
+ * TCP client listener interface.
+ *
+ * This interface contains callbacks that are called when the TCP client
+ * receives commands from the session daemon. These callbacks will define what
+ * do to with each command.
+ *
+ * @author Alexandre Montplaisir
+ */
+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.
+	 *
+	 * @param eventName
+	 *            The name of the event 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);
+
+	/**
+	 * Callback for the TCP client to notify the listener agent that a request
+	 * for disabling an event was sent from the session daemon.
+	 *
+	 * @param eventName
+	 *            The name of the event that was requested to be disabled.
+	 * @return True if the command completed successfully, false if we should
+	 *         report an error (event was not enabled, etc.)
+	 */
+	boolean eventDisabled(String eventName);
+
+	/**
+	 * List the all events currently enabled in the current tracing sessions.
+	 *
+	 * @return The list of enabled events
+	 */
+	Iterable<String> listEnabledEvents();
+}