Implement Java agent application context retrieval

[deliverable/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 ef0c11d95656db784c48a738fb5174454356121b..21189730befb9bb353d68740fc0b5248011defce 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
@@ -54,6 +54,36 @@ public interface ILttngTcpClientListener {
         */
        boolean eventDisabled(String eventName);
 
+       /**
+        * 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.
         *