org.eclipse.tracecompass.lttng2.control.core/src/org/eclipse/tracecompass/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.tracecompass.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  */
  24 public class NewStreamsRequest implements IRelayCommand {
  25
  26     /**
  27      * Command size (fSessionId)
  28      */
  29     public static final int SIZE = Long.SIZE / 8;
  30
  31     /** session ID */
  32     private final long fSessionId;
  33
  34     /**
  35      * Constructor
  36      *
  37      * @param sessionId
  38      *            the session id we want
  39      */
  40     public NewStreamsRequest(long sessionId) {
  41         fSessionId = sessionId;
  42     }
  43
  44     @Override
  45     public byte[] serialize() {
  46         byte data[] = new byte[SIZE];
  47         ByteBuffer bb = ByteBuffer.wrap(data);
  48         bb.order(ByteOrder.BIG_ENDIAN);
  49         bb.putLong(fSessionId);
  50         return data;
  51     }
  52 }