X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust-java-agent%2Fjava%2Flttng-ust-agent-common%2Forg%2Flttng%2Fust%2Fagent%2Fclient%2FSessiondDisableAppContextCommand.java;fp=liblttng-ust-java-agent%2Fjava%2Flttng-ust-agent-common%2Forg%2Flttng%2Fust%2Fagent%2Fclient%2FSessiondDisableAppContextCommand.java;h=157ad7565c18fe05432bdf6bcf93f3f12a206c78;hb=8ab5c06b92ac9a06ba2743470a38e4e1cfc6a3c9;hp=0000000000000000000000000000000000000000;hpb=1d193914f13dd604d60df9db680001c9a4af5f9d;p=lttng-ust.git

diff --git a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/SessiondDisableAppContextCommand.java b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/SessiondDisableAppContextCommand.java
new file mode 100644
index 00000000..157ad756
--- /dev/null
+++ b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/SessiondDisableAppContextCommand.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 - 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;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+/**
+ * Session daemon command indicating to the Java agent that an
+ * application-specific context was disabled in the tracing session.
+ *
+ * @author Alexandre Montplaisir
+ */
+class SessiondDisableAppContextCommand extends SessiondCommand {
+
+	private final String retrieverName;
+	private final String contextName;
+
+	private final boolean commandIsValid;
+
+	public SessiondDisableAppContextCommand(byte[] data) {
+		if (data == null) {
+			throw new IllegalArgumentException();
+		}
+		ByteBuffer buf = ByteBuffer.wrap(data);
+		buf.order(ByteOrder.BIG_ENDIAN);
+
+		/*
+		 * The buffer contains the retriever name first, followed by the
+		 * context's name.
+		 */
+		retrieverName = readNextString(buf);
+		contextName = readNextString(buf);
+
+		/* If any of these strings were null then the command was invalid */
+		commandIsValid = ((retrieverName != null) && (contextName != null));
+	}
+
+	@Override
+	public LttngAgentResponse execute(ILttngTcpClientListener agent) {
+		if (!commandIsValid) {
+			return LttngAgentResponse.FAILURE_RESPONSE;
+		}
+
+		boolean success = agent.appContextDisabled(retrieverName, contextName);
+		return (success ? LttngAgentResponse.SUCESS_RESPONSE : DISABLE_APP_CONTEXT_FAILURE_RESPONSE);
+	}
+
+	/**
+	 * Response sent when the disable-context command asks to disable an
+	 * unknown context name.
+	 */
+	private static final LttngAgentResponse DISABLE_APP_CONTEXT_FAILURE_RESPONSE = new LttngAgentResponse() {
+		@Override
+		public ReturnCode getReturnCode() {
+			/* Same return code used for unknown event/logger names */
+			return ReturnCode.CODE_UNKNOWN_LOGGER_NAME;
+		}
+	};
+}