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d18dd09b | 1 | /******************************************************************************* |
e31e01e8 | 2 | * Copyright (c) 2009, 2010 Ericsson |
d18dd09b ASL |
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 - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
6c13869b | 13 | package org.eclipse.linuxtools.tmf.stubs.trace; |
d18dd09b ASL |
14 | |
15 | import java.io.FileNotFoundException; | |
16 | import java.io.IOException; | |
17 | import java.io.RandomAccessFile; | |
73005152 | 18 | import java.util.concurrent.locks.ReentrantLock; |
d18dd09b | 19 | |
dfee01ae | 20 | import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp; |
6c13869b FC |
21 | import org.eclipse.linuxtools.tmf.core.event.TmfEvent; |
22 | import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange; | |
6c13869b FC |
23 | import org.eclipse.linuxtools.tmf.core.parser.ITmfEventParser; |
24 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; | |
25 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; | |
26 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; | |
27 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; | |
28 | import org.eclipse.linuxtools.tmf.core.trace.TmfLocation; | |
29 | import org.eclipse.linuxtools.tmf.core.trace.TmfTrace; | |
d18dd09b ASL |
30 | |
31 | /** | |
32 | * <b><u>TmfTraceStub</u></b> | |
33 | * <p> | |
8d2e2848 | 34 | * Dummy test trace. Use in conjunction with TmfEventParserStub. |
d18dd09b | 35 | */ |
3b38ea61 | 36 | @SuppressWarnings("nls") |
e31e01e8 | 37 | public class TmfTraceStub extends TmfTrace<TmfEvent> { |
d18dd09b | 38 | |
e31e01e8 | 39 | // ------------------------------------------------------------------------ |
d18dd09b | 40 | // Attributes |
e31e01e8 | 41 | // ------------------------------------------------------------------------ |
d18dd09b ASL |
42 | |
43 | // The actual stream | |
ff4ed569 | 44 | private RandomAccessFile fTrace; |
d18dd09b ASL |
45 | |
46 | // The associated event parser | |
ff4ed569 | 47 | private ITmfEventParser fParser; |
d18dd09b | 48 | |
73005152 BH |
49 | // The synchronization lock |
50 | private ReentrantLock fLock = new ReentrantLock(); | |
51 | ||
e31e01e8 | 52 | // ------------------------------------------------------------------------ |
d18dd09b | 53 | // Constructors |
e31e01e8 | 54 | // ------------------------------------------------------------------------ |
d18dd09b ASL |
55 | |
56 | /** | |
57 | * @param filename | |
58 | * @throws FileNotFoundException | |
59 | */ | |
60 | public TmfTraceStub(String filename) throws FileNotFoundException { | |
664902f7 | 61 | this(filename, DEFAULT_INDEX_PAGE_SIZE, false); |
8d2e2848 FC |
62 | } |
63 | ||
64 | /** | |
65 | * @param filename | |
e31e01e8 | 66 | * @param cacheSize |
8d2e2848 FC |
67 | * @throws FileNotFoundException |
68 | */ | |
e31e01e8 FC |
69 | public TmfTraceStub(String filename, int cacheSize) throws FileNotFoundException { |
70 | this(filename, cacheSize, false); | |
d18dd09b ASL |
71 | } |
72 | ||
73 | /** | |
74 | * @param filename | |
ff4ed569 | 75 | * @param waitForCompletion |
d18dd09b ASL |
76 | * @throws FileNotFoundException |
77 | */ | |
e31e01e8 | 78 | public TmfTraceStub(String filename, boolean waitForCompletion) throws FileNotFoundException { |
664902f7 | 79 | this(filename, DEFAULT_INDEX_PAGE_SIZE, waitForCompletion); |
8d2e2848 | 80 | } |
fe79470e | 81 | |
8d2e2848 FC |
82 | /** |
83 | * @param filename | |
84 | * @param cacheSize | |
ff4ed569 | 85 | * @param waitForCompletion |
8d2e2848 FC |
86 | * @throws FileNotFoundException |
87 | */ | |
88 | public TmfTraceStub(String filename, int cacheSize, boolean waitForCompletion) throws FileNotFoundException { | |
c5b45b39 | 89 | super(null, TmfEvent.class, filename, cacheSize, false); |
d18dd09b ASL |
90 | fTrace = new RandomAccessFile(filename, "r"); |
91 | fParser = new TmfEventParserStub(); | |
92 | } | |
93 | ||
73005152 BH |
94 | |
95 | /** | |
96 | * @param filename | |
97 | * @param cacheSize | |
98 | * @param waitForCompletion | |
99 | * @param parser | |
100 | * @throws FileNotFoundException | |
101 | */ | |
102 | public TmfTraceStub(String filename, int cacheSize, boolean waitForCompletion, ITmfEventParser parser) throws FileNotFoundException { | |
103 | super(filename, TmfEvent.class, filename, cacheSize, false); | |
104 | fTrace = new RandomAccessFile(filename, "r"); | |
105 | fParser = parser; | |
106 | } | |
107 | ||
ff4ed569 FC |
108 | /** |
109 | */ | |
110 | @Override | |
111 | public TmfTraceStub clone() { | |
112 | TmfTraceStub clone = null; | |
113 | try { | |
114 | clone = (TmfTraceStub) super.clone(); | |
cb866e08 | 115 | clone.fTrace = new RandomAccessFile(getPath(), "r"); |
ff4ed569 FC |
116 | clone.fParser = new TmfEventParserStub(); |
117 | } catch (CloneNotSupportedException e) { | |
118 | } catch (FileNotFoundException e) { | |
119 | } | |
120 | return clone; | |
121 | } | |
122 | ||
d4011df2 | 123 | @Override |
cbbcc354 | 124 | public ITmfTrace<TmfEvent> copy() { |
125 | ITmfTrace<TmfEvent> returnedValue = null; | |
cb866e08 | 126 | returnedValue = clone(); |
ff4ed569 FC |
127 | return returnedValue; |
128 | } | |
129 | ||
e31e01e8 | 130 | // ------------------------------------------------------------------------ |
d18dd09b | 131 | // Accessors |
e31e01e8 | 132 | // ------------------------------------------------------------------------ |
d18dd09b ASL |
133 | |
134 | public RandomAccessFile getStream() { | |
135 | return fTrace; | |
136 | } | |
137 | ||
e31e01e8 | 138 | // ------------------------------------------------------------------------ |
d18dd09b | 139 | // Operators |
e31e01e8 | 140 | // ------------------------------------------------------------------------ |
d18dd09b | 141 | |
452ad365 | 142 | @Override |
9f584e4c | 143 | @SuppressWarnings("unchecked") |
cbbcc354 | 144 | public TmfContext seekLocation(ITmfLocation<?> location) { |
73005152 | 145 | fLock.lock(); |
d18dd09b | 146 | try { |
73005152 BH |
147 | if (fTrace != null) { |
148 | // Position the trace at the requested location and | |
149 | // returns the corresponding context | |
150 | long loc = 0; | |
151 | long rank = 0; | |
152 | if (location != null) { | |
153 | loc = ((TmfLocation<Long>) location).getLocation(); | |
154 | rank = ITmfContext.UNKNOWN_RANK; | |
155 | } | |
156 | if (loc != fTrace.getFilePointer()) { | |
157 | fTrace.seek(loc); | |
158 | } | |
159 | TmfContext context = new TmfContext(getCurrentLocation(), rank); | |
160 | return context; | |
161 | } | |
d18dd09b ASL |
162 | } catch (IOException e) { |
163 | e.printStackTrace(); | |
164 | } | |
73005152 BH |
165 | finally{ |
166 | fLock.unlock(); | |
167 | } | |
e31e01e8 | 168 | return null; |
d18dd09b ASL |
169 | } |
170 | ||
c76c54bb FC |
171 | |
172 | @Override | |
173 | public TmfContext seekLocation(double ratio) { | |
73005152 | 174 | fLock.lock(); |
c76c54bb | 175 | try { |
73005152 BH |
176 | if (fTrace != null) { |
177 | ITmfLocation<?> location = new TmfLocation<Long>(new Long((long) (ratio * fTrace.length()))); | |
178 | TmfContext context = seekLocation(location); | |
179 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
180 | return context; | |
181 | } | |
c76c54bb FC |
182 | } catch (IOException e) { |
183 | e.printStackTrace(); | |
73005152 BH |
184 | } finally { |
185 | fLock.unlock(); | |
c76c54bb | 186 | } |
73005152 | 187 | |
c76c54bb FC |
188 | return null; |
189 | } | |
190 | ||
191 | @Override | |
12c155f5 FC |
192 | @SuppressWarnings("rawtypes") |
193 | public double getLocationRatio(ITmfLocation location) { | |
73005152 | 194 | fLock.lock(); |
c76c54bb | 195 | try { |
73005152 BH |
196 | if (fTrace != null) { |
197 | if (location.getLocation() instanceof Long) { | |
198 | return (double) ((Long) location.getLocation()) / fTrace.length(); | |
199 | } | |
c76c54bb FC |
200 | } |
201 | } catch (IOException e) { | |
202 | e.printStackTrace(); | |
73005152 BH |
203 | } finally { |
204 | fLock.unlock(); | |
c76c54bb FC |
205 | } |
206 | return 0; | |
207 | } | |
208 | ||
4e3aa37d | 209 | @Override |
9f584e4c | 210 | public TmfLocation<Long> getCurrentLocation() { |
73005152 | 211 | fLock.lock(); |
d18dd09b | 212 | try { |
73005152 BH |
213 | if (fTrace != null) { |
214 | return new TmfLocation<Long>(fTrace.getFilePointer()); | |
215 | } | |
d18dd09b ASL |
216 | } catch (IOException e) { |
217 | e.printStackTrace(); | |
73005152 BH |
218 | } finally { |
219 | fLock.unlock(); | |
d18dd09b ASL |
220 | } |
221 | return null; | |
222 | } | |
223 | ||
4e3aa37d | 224 | @Override |
9f584e4c | 225 | public TmfEvent parseEvent(TmfContext context) { |
73005152 | 226 | fLock.lock(); |
cc6eec3e | 227 | try { |
cb866e08 | 228 | // parseNextEvent will update the context |
73005152 BH |
229 | if (fTrace != null) { |
230 | TmfEvent event = fParser.parseNextEvent(this, context.clone()); | |
231 | return event; | |
232 | } | |
cc6eec3e FC |
233 | } |
234 | catch (IOException e) { | |
235 | e.printStackTrace(); | |
73005152 BH |
236 | } finally { |
237 | fLock.unlock(); | |
cc6eec3e FC |
238 | } |
239 | return null; | |
d18dd09b ASL |
240 | } |
241 | ||
ff4ed569 FC |
242 | @Override |
243 | public void setTimeRange(TmfTimeRange range) { | |
244 | super.setTimeRange(range); | |
245 | } | |
246 | ||
247 | @Override | |
d7dbf09a | 248 | public void setStartTime(ITmfTimestamp startTime) { |
ff4ed569 FC |
249 | super.setStartTime(startTime); |
250 | } | |
251 | ||
252 | @Override | |
dfee01ae | 253 | public void setEndTime(ITmfTimestamp endTime) { |
ff4ed569 FC |
254 | super.setEndTime(endTime); |
255 | } | |
73005152 BH |
256 | |
257 | @Override | |
258 | public void dispose() { | |
259 | fLock.lock(); | |
260 | try { | |
261 | if (fTrace != null) { | |
262 | fTrace.close(); | |
263 | fTrace = null; | |
264 | } | |
265 | } catch (IOException e) { | |
266 | // Ignore | |
267 | } finally { | |
268 | fLock.unlock(); | |
269 | } | |
270 | super.dispose(); | |
271 | } | |
ff4ed569 | 272 | |
e31e01e8 | 273 | } |