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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.io.DataInputStream; | |
17 | import java.io.IOException; | |
18 | import java.nio.ByteBuffer; | |
19 | import java.nio.ByteOrder; | |
20 | import java.util.List; | |
21 | ||
22 | import com.google.common.collect.ImmutableList; | |
23 | ||
24 | /** | |
25 | * Response to a "new streams" command | |
26 | * | |
27 | * @author Matthew Khouzam | |
28 | * @since 3.0 | |
29 | */ | |
30 | public class NewStreamsResponse implements IRelayResponse { | |
31 | ||
8adfbb73 MAL |
32 | /** |
33 | * Response size | |
34 | * | |
35 | * fStatus + fNbStreams | |
36 | */ | |
8e15b929 MK |
37 | private static final int SIZE = (Integer.SIZE + Integer.SIZE) / 8; |
38 | /** status of the request */ | |
39 | private final NewStreamsReturnCode fStatus; | |
40 | /** the number of streams */ | |
41 | private final int fNbStreams; | |
42 | /** the list of streams in the response */ | |
43 | private final List<StreamResponse> fStreamList; | |
44 | ||
45 | /** | |
46 | * New stream response network constructor | |
47 | * | |
48 | * @param inNet | |
49 | * network stream | |
50 | * @throws IOException | |
51 | * network error | |
52 | */ | |
53 | public NewStreamsResponse(DataInputStream inNet) throws IOException { | |
54 | byte[] data = new byte[SIZE]; | |
55 | inNet.readFully(data); | |
56 | ByteBuffer bb = ByteBuffer.wrap(data); | |
57 | bb.order(ByteOrder.BIG_ENDIAN); | |
58 | fStatus = NewStreamsReturnCode.values()[bb.getInt() - 1]; | |
59 | fNbStreams = bb.getInt(); | |
60 | ImmutableList.Builder<StreamResponse> sl = new ImmutableList.Builder<>(); | |
61 | if (getStatus().equals(NewStreamsReturnCode.LTTNG_VIEWER_NEW_STREAMS_OK)) { | |
62 | for (int stream = 0; stream < fNbStreams; stream++) { | |
63 | sl.add(new StreamResponse(inNet)); | |
64 | } | |
65 | } | |
66 | fStreamList = sl.build(); | |
67 | } | |
68 | ||
69 | /** | |
70 | * Gets the status | |
71 | * | |
72 | * @return the status | |
73 | */ | |
74 | public NewStreamsReturnCode getStatus() { | |
75 | return fStatus; | |
76 | } | |
77 | ||
78 | /** | |
79 | * gets the stream list | |
80 | * | |
81 | * @return the stream list | |
82 | */ | |
83 | public List<StreamResponse> getStreamList() { | |
84 | return fStreamList; | |
85 | } | |
86 | ||
87 | /** | |
88 | * The number of streams | |
89 | * | |
90 | * @return the number of streams | |
91 | */ | |
92 | public int getNbStreams() { | |
93 | return fNbStreams; | |
94 | } | |
95 | ||
96 | } |