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6040f86c ASL |
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 | ||
19 | import org.eclipse.linuxtools.lttng.event.LttngEvent; | |
20 | import org.eclipse.linuxtools.tmf.event.TmfEvent; | |
21 | import org.eclipse.linuxtools.tmf.parser.ITmfEventParser; | |
9f584e4c | 22 | import org.eclipse.linuxtools.tmf.trace.ITmfLocation; |
aa9d027b | 23 | import org.eclipse.linuxtools.tmf.trace.ITmfTrace; |
9f584e4c FC |
24 | import org.eclipse.linuxtools.tmf.trace.TmfContext; |
25 | import org.eclipse.linuxtools.tmf.trace.TmfLocation; | |
6040f86c ASL |
26 | import org.eclipse.linuxtools.tmf.trace.TmfTrace; |
27 | ||
28 | /** | |
29 | * <b><u>LTTngTraceStub</u></b> | |
30 | * <p> | |
31 | * Dummy test trace. Use in conjunction with LTTngEventParserStub. | |
32 | */ | |
3b38ea61 | 33 | @SuppressWarnings("nls") |
6040f86c ASL |
34 | public class LTTngTraceStub extends TmfTrace<LttngEvent> { |
35 | ||
36 | // ======================================================================== | |
37 | // Attributes | |
38 | // ======================================================================== | |
39 | ||
40 | // The actual stream | |
41 | private final RandomAccessFile fTrace; | |
42 | ||
43 | // The associated event parser | |
44 | private final ITmfEventParser fParser; | |
45 | ||
46 | // ======================================================================== | |
47 | // Constructors | |
48 | // ======================================================================== | |
49 | ||
50 | /** | |
51 | * @param filename | |
52 | * @param parser | |
53 | * @throws FileNotFoundException | |
54 | */ | |
55 | public LTTngTraceStub(String filename) throws FileNotFoundException { | |
664902f7 | 56 | this(filename, DEFAULT_INDEX_PAGE_SIZE); |
6040f86c ASL |
57 | } |
58 | ||
59 | /** | |
60 | * @param filename | |
61 | * @param parser | |
62 | * @param cacheSize | |
63 | * @throws FileNotFoundException | |
64 | */ | |
65 | public LTTngTraceStub(String filename, int cacheSize) throws FileNotFoundException { | |
ce785d7d | 66 | super(filename, LttngEvent.class, filename, cacheSize); |
6040f86c ASL |
67 | fTrace = new RandomAccessFile(filename, "r"); |
68 | fParser = new LTTngEventParserStub(); | |
550d787e | 69 | // indexTrace(true); |
6040f86c | 70 | } |
aa9d027b | 71 | |
d4011df2 | 72 | @Override |
aa9d027b WB |
73 | public ITmfTrace createTraceCopy() { |
74 | ITmfTrace returnedValue = null; | |
75 | try { | |
76 | returnedValue = new LTTngTraceStub(this.getName()); | |
77 | } | |
78 | catch (FileNotFoundException e) { | |
79 | e.printStackTrace(); | |
80 | } | |
81 | return returnedValue; | |
82 | } | |
83 | ||
6040f86c ASL |
84 | // ======================================================================== |
85 | // Accessors | |
86 | // ======================================================================== | |
87 | ||
88 | public RandomAccessFile getStream() { | |
89 | return fTrace; | |
90 | } | |
91 | ||
92 | // ======================================================================== | |
93 | // Operators | |
94 | // ======================================================================== | |
95 | ||
96 | /* (non-Javadoc) | |
97 | * @see org.eclipse.linuxtools.tmf.eventlog.ITmfStreamLocator#seekLocation(java.lang.Object) | |
98 | */ | |
452ad365 | 99 | @Override |
9f584e4c | 100 | @SuppressWarnings("unchecked") |
452ad365 | 101 | public TmfContext seekLocation(ITmfLocation<?> location) { |
9f584e4c | 102 | TmfContext context = null; |
6040f86c ASL |
103 | try { |
104 | synchronized(fTrace) { | |
452ad365 | 105 | fTrace.seek((location != null) ? ((TmfLocation<Long>) location).getLocation() : 0); |
9f584e4c | 106 | context = new TmfContext(getCurrentLocation(), 0); |
6040f86c ASL |
107 | // TmfTraceContext context2 = new TmfTraceContext(getCurrentLocation(), 0); |
108 | // TmfEvent event = parseEvent(context2); | |
109 | // context.setTimestamp(event.getTimestamp()); | |
110 | } | |
111 | } catch (IOException e) { | |
112 | // TODO Auto-generated catch block | |
113 | e.printStackTrace(); | |
114 | } | |
115 | return context; | |
116 | } | |
117 | ||
90e2b925 FC |
118 | @Override |
119 | public TmfContext seekLocation(double ratio) { | |
120 | // TODO Auto-generated method stub | |
121 | return null; | |
122 | } | |
123 | ||
124 | @Override | |
125 | public double getLocationRatio(ITmfLocation<?> location) { | |
126 | // TODO Auto-generated method stub | |
127 | return 0; | |
128 | } | |
129 | ||
6040f86c ASL |
130 | /* (non-Javadoc) |
131 | * @see org.eclipse.linuxtools.tmf.eventlog.ITmfStreamLocator#getCurrentLocation() | |
132 | */ | |
133 | @Override | |
452ad365 | 134 | public ITmfLocation<?> getCurrentLocation() { |
6040f86c | 135 | try { |
9f584e4c | 136 | return new TmfLocation<Long>(fTrace.getFilePointer()); |
6040f86c ASL |
137 | } catch (IOException e) { |
138 | // TODO Auto-generated catch block | |
139 | e.printStackTrace(); | |
140 | } | |
141 | return null; | |
142 | } | |
143 | ||
144 | /* (non-Javadoc) | |
145 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#parseEvent() | |
146 | */ | |
147 | @Override | |
9f584e4c | 148 | public TmfEvent parseEvent(TmfContext context) { |
6040f86c ASL |
149 | try { |
150 | // paserNextEvent updates the context | |
151 | TmfEvent event = fParser.parseNextEvent(this, context); | |
152 | // if (event != null) { | |
153 | // context.setTimestamp(event.getTimestamp()); | |
154 | // } | |
155 | return event; | |
156 | } | |
157 | catch (IOException e) { | |
158 | e.printStackTrace(); | |
159 | } | |
160 | return null; | |
161 | } | |
162 | ||
163 | /* (non-Javadoc) | |
164 | * @see java.lang.Object#toString() | |
165 | */ | |
166 | @Override | |
167 | public String toString() { | |
168 | return "[LTTngTraceStub]"; | |
169 | } | |
170 | ||
171 | // // ======================================================================== | |
172 | // // Helper functions | |
173 | // // ======================================================================== | |
174 | // | |
175 | // /* (non-Javadoc) | |
176 | // * @see org.eclipse.linuxtools.tmf.eventlog.ITmfEventStream#getAttributes() | |
177 | // */ | |
178 | // public Map<String, Object> getAttributes() { | |
179 | // // TODO Auto-generated method stub | |
180 | // return null; | |
181 | // } | |
182 | ||
183 | } |