org.eclipse.tracecompass.lttng2.control.core/src/org/eclipse/linuxtools/internal/lttng2/control/core/relayd/lttngviewerCommands/NewStreamsRequest.java

   1 /**********************************************************************
   2  * Copyright (c) 2014 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Matthew Khouzam - Initial implementation and API
  11  *   Marc-Andre Laperle - Initial implementation and API
  12  **********************************************************************/
  13
  14 package org.eclipse.linuxtools.internal.lttng2.control.core.relayd.lttngviewerCommands;
  15
  16 import java.nio.ByteBuffer;
  17 import java.nio.ByteOrder;
  18
  19 /**
  20  * LTTNG_VIEWER_GET_NEW_STREAMS payload.
  21  *
  22  * @author Matthew Khouzam
  23  * @since 3.0
  24  */
  25 public class NewStreamsRequest implements IRelayCommand {
  26
  27     /**
  28      * Command size (fSessionId)
  29      */
  30     public static final int SIZE = Long.SIZE / 8;
  31
  32     /** session ID */
  33     private final long fSessionId;
  34
  35     /**
  36      * Constructor
  37      *
  38      * @param sessionId
  39      *            the session id we want
  40      */
  41     public NewStreamsRequest(long sessionId) {
  42         fSessionId = sessionId;
  43     }
  44
  45     @Override
  46     public byte[] serialize() {
  47         byte data[] = new byte[SIZE];
  48         ByteBuffer bb = ByteBuffer.wrap(data);
  49         bb.order(ByteOrder.BIG_ENDIAN);
  50         bb.putLong(fSessionId);
  51         return data;
  52     }
  53 }