Move liblttng-ust-java* to 'src/lib/'

[lttng-ust.git] / src / lib / lttng-ust-java-agent / java / lttng-ust-agent-common / org / lttng / ust / agent / client / SessiondDisableEventCommand.java

diff --git a/src/lib/lttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/SessiondDisableEventCommand.java b/src/lib/lttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/SessiondDisableEventCommand.java
new file mode 100644 (file)
index 0000000..ff8eff3
--- /dev/null
+++ b/src/lib/lttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/SessiondDisableEventCommand.java
@@ -0,0 +1,58 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ * Copyright (C) 2015 EfficiOS Inc.
+ * Copyright (C) 2015 Alexandre Montplaisir <alexmonthy@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ */
+
+package org.lttng.ust.agent.client;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+/**
+ * Session daemon command indicating to the Java agent that some events were
+ * disabled in the tracing session.
+ *
+ * @author Alexandre Montplaisir
+ * @author David Goulet
+ */
+class SessiondDisableEventCommand extends SessiondCommand {
+
+       /**
+        * Response sent when the disable-event command asks to disable an
+        * unknown event.
+        */
+       private static final LttngAgentResponse DISABLE_EVENT_FAILURE_RESPONSE = new LttngAgentResponse() {
+               @Override
+               public ReturnCode getReturnCode() {
+                       return ReturnCode.CODE_UNKNOWN_LOGGER_NAME;
+               }
+       };
+
+       /** Event name to disable from the tracing session */
+       private final String eventName;
+
+       public SessiondDisableEventCommand(byte[] data) {
+               if (data == null) {
+                       throw new IllegalArgumentException();
+               }
+               ByteBuffer buf = ByteBuffer.wrap(data);
+               buf.order(ByteOrder.BIG_ENDIAN);
+               eventName = new String(data, SESSIOND_PROTOCOL_CHARSET).trim();
+       }
+
+       @Override
+       public LttngAgentResponse execute(ILttngTcpClientListener agent) {
+               boolean success = agent.eventDisabled(this.eventName);
+               return (success ? LttngAgentResponse.SUCESS_RESPONSE : DISABLE_EVENT_FAILURE_RESPONSE);
+       }
+
+       @Override
+       public String toString() {
+               return "SessiondDisableEventCommand["
+                               + "eventName=" + eventName
+                               +"]";
+       }
+}