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1 | /******************************************************************************* |
2 | * Copyright (c) 2009 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 | * Francois Chouinard (fchouinard@gmail.com) - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.lttng.stubs; | |
14 | ||
15 | import java.io.FileNotFoundException; | |
16 | import java.io.IOException; | |
17 | import java.io.RandomAccessFile; | |
18 | import java.util.Map; | |
19 | ||
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20 | import org.eclipse.linuxtools.tmf.trace.ITmfEventParser; |
21 | import org.eclipse.linuxtools.tmf.trace.TmfTrace; | |
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22 | |
23 | /** | |
24 | * <b><u>TmfEventStreamStub</u></b> | |
25 | * <p> | |
26 | * TODO: Implement me. Please. | |
27 | */ | |
62d1696a | 28 | public class LTTngEventStreamStub extends TmfTrace { |
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29 | |
30 | // ======================================================================== | |
31 | // Attributes | |
32 | // ======================================================================== | |
33 | ||
34 | // The actual stream | |
35 | private final RandomAccessFile fStream; | |
36 | ||
37 | // ======================================================================== | |
38 | // Constructors | |
39 | // ======================================================================== | |
40 | ||
41 | /** | |
42 | * @param filename | |
43 | * @param parser | |
44 | * @throws FileNotFoundException | |
45 | */ | |
46 | public LTTngEventStreamStub(String filename, ITmfEventParser parser) throws FileNotFoundException { | |
47 | this(filename, parser, DEFAULT_CACHE_SIZE); | |
48 | } | |
49 | ||
50 | /** | |
51 | * @param filename | |
52 | * @param parser | |
53 | * @param cacheSize | |
54 | * @throws FileNotFoundException | |
55 | */ | |
56 | public LTTngEventStreamStub(String filename, ITmfEventParser parser, int cacheSize) throws FileNotFoundException { | |
57 | super(filename, parser, cacheSize); | |
58 | fStream = new RandomAccessFile(filename, "r"); | |
59 | } | |
60 | ||
61 | // ======================================================================== | |
62 | // Accessors | |
63 | // ======================================================================== | |
64 | ||
65 | public RandomAccessFile getStream() { | |
66 | return fStream; | |
67 | } | |
68 | ||
69 | // ======================================================================== | |
70 | // Operators | |
71 | // ======================================================================== | |
72 | ||
73 | /* (non-Javadoc) | |
74 | * @see org.eclipse.linuxtools.tmf.eventlog.ITmfStreamLocator#seekLocation(java.lang.Object) | |
75 | */ | |
76 | public StreamContext seekLocation(Object location) { | |
77 | StreamContext context = null; | |
78 | try { | |
79 | fStream.seek((location != null) ? (Long) location : 0); | |
80 | context = new StreamContext(getCurrentLocation(), 0); | |
81 | } catch (IOException e) { | |
82 | // TODO Auto-generated catch block | |
83 | e.printStackTrace(); | |
84 | } | |
85 | return context; | |
86 | } | |
87 | ||
88 | /* (non-Javadoc) | |
89 | * @see org.eclipse.linuxtools.tmf.eventlog.ITmfStreamLocator#getCurrentLocation() | |
90 | */ | |
91 | public Object getCurrentLocation() { | |
92 | try { | |
93 | return new Long(fStream.getFilePointer()); | |
94 | } catch (IOException e) { | |
95 | // TODO Auto-generated catch block | |
96 | e.printStackTrace(); | |
97 | } | |
98 | return null; | |
99 | } | |
100 | ||
101 | // ======================================================================== | |
102 | // Helper functions | |
103 | // ======================================================================== | |
104 | ||
105 | /* (non-Javadoc) | |
106 | * @see org.eclipse.linuxtools.tmf.eventlog.ITmfEventStream#getAttributes() | |
107 | */ | |
108 | public Map<String, Object> getAttributes() { | |
109 | // TODO Auto-generated method stub | |
110 | return null; | |
111 | } | |
112 | ||
113 | } |