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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are made | |
5 | * 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 API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.tracecompass.internal.ctf.core.trace; | |
14 | ||
15 | import org.eclipse.jdt.annotation.NonNullByDefault; | |
16 | import org.eclipse.jdt.annotation.Nullable; | |
17 | import org.eclipse.tracecompass.ctf.core.CTFException; | |
42f8feff MK |
18 | import org.eclipse.tracecompass.ctf.core.event.types.ICompositeDefinition; |
19 | import org.eclipse.tracecompass.ctf.core.trace.ICTFPacketDescriptor; | |
20 | import org.eclipse.tracecompass.ctf.core.trace.IPacketReader; | |
e8ece272 | 21 | import org.eclipse.tracecompass.internal.ctf.core.event.EventDefinition; |
42f8feff MK |
22 | |
23 | /** | |
24 | * Null packet reader, used for unset packets | |
25 | */ | |
26 | @NonNullByDefault | |
27 | public final class NullPacketReader implements IPacketReader { | |
28 | ||
29 | /** | |
30 | * Instance of a null packet reader | |
31 | */ | |
32 | public static final NullPacketReader INSTANCE = new NullPacketReader(); | |
33 | ||
34 | private NullPacketReader() { } | |
35 | ||
36 | @Override | |
37 | public int getCPU() { | |
38 | return UNKNOWN_CPU; | |
39 | } | |
40 | ||
41 | @Override | |
42 | public boolean hasMoreEvents() { | |
43 | return false; | |
44 | } | |
45 | ||
46 | @Override | |
47 | public @Nullable EventDefinition readNextEvent() throws CTFException { | |
48 | return null; | |
49 | } | |
50 | ||
51 | @Override | |
52 | public @Nullable ICTFPacketDescriptor getCurrentPacket() { | |
53 | return null; | |
54 | } | |
55 | ||
56 | @Override | |
57 | public @Nullable ICompositeDefinition getCurrentPacketEventHeader() { | |
58 | return null; | |
59 | } | |
60 | } |