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a3fc8213 AM |
1 | package org.eclipse.linuxtools.tmf.core.ctfadaptor; |
2 | ||
3 | import java.io.FileNotFoundException; | |
4 | import java.util.Vector; | |
5 | ||
6 | import org.eclipse.core.resources.IProject; | |
7 | import org.eclipse.core.resources.IResource; | |
8 | import org.eclipse.linuxtools.ctf.core.trace.CTFReaderException; | |
9 | import org.eclipse.linuxtools.ctf.core.trace.CTFTrace; | |
10 | import org.eclipse.linuxtools.tmf.core.component.TmfEventProvider; | |
11 | import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp; | |
12 | import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange; | |
13 | import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp; | |
14 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest; | |
15 | import org.eclipse.linuxtools.tmf.core.request.ITmfEventRequest; | |
16 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignal; | |
17 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager; | |
18 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; | |
19 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; | |
20 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; | |
21 | import org.eclipse.linuxtools.tmf.core.trace.TmfCheckpoint; | |
22 | ||
23 | public class CtfTmfTrace extends TmfEventProvider<CtfTmfEvent> implements | |
24 | ITmfTrace<CtfTmfEvent> { | |
25 | ||
26 | // ------------------------------------------------------------------------ | |
27 | // Constants | |
28 | // ------------------------------------------------------------------------ | |
29 | ||
30 | // The default number of events to cache | |
31 | // TODO: Make the DEFAULT_CACHE_SIZE a preference | |
32 | public static final int DEFAULT_INDEX_PAGE_SIZE = 50000; | |
33 | ||
34 | // ------------------------------------------------------------------------ | |
35 | // Attributes | |
36 | // ------------------------------------------------------------------------ | |
37 | ||
38 | // the Ctf Trace | |
39 | private CTFTrace fTrace; | |
40 | ||
41 | // The cache page size AND checkpoints interval | |
42 | protected int fIndexPageSize = DEFAULT_INDEX_PAGE_SIZE; | |
43 | ||
44 | // The set of event stream checkpoints (for random access) | |
45 | private Vector<TmfCheckpoint> fCheckpoints = new Vector<TmfCheckpoint>(); | |
46 | ||
47 | // The number of events collected | |
48 | protected long fNbEvents = 0; | |
49 | ||
50 | // The time span of the event stream | |
51 | private ITmfTimestamp fStartTime = TmfTimestamp.BIG_CRUNCH; | |
52 | private ITmfTimestamp fEndTime = TmfTimestamp.BIG_BANG; | |
53 | ||
54 | // The trace resource | |
55 | private IResource fResource; | |
56 | ||
57 | /* | |
58 | * Since in TMF, "traces" can read events, this trace here will have its own | |
59 | * iterator. The user can instantiate extra iterator if they want to seek at | |
60 | * many places at the same time. | |
61 | */ | |
62 | protected CtfIterator iterator; | |
63 | ||
64 | // ------------------------------------------------------------------------ | |
65 | // Constructors | |
66 | // ------------------------------------------------------------------------ | |
67 | ||
68 | public CtfTmfTrace() { | |
69 | super(); | |
70 | } | |
71 | ||
72 | @Override | |
3118edf1 | 73 | public void initTrace(String name, String path, Class<CtfTmfEvent> eventType) |
a3fc8213 AM |
74 | throws FileNotFoundException { |
75 | try { | |
76 | this.fTrace = new CTFTrace(path); | |
77 | } catch (CTFReaderException e) { | |
78 | /* | |
79 | * If it failed at the init(), we can assume it's because the file | |
80 | * was not found or was not recognized as a CTF trace. Throw into | |
81 | * the new type of exception expected by the rest of TMF. | |
82 | */ | |
83 | System.err.println("Cannot find file " + path); //$NON-NLS-1$ | |
84 | throw new FileNotFoundException(e.getMessage()); | |
85 | } | |
86 | this.iterator = new CtfIterator(this, 0, 0); | |
87 | setStartTime(iterator.getCurrentEvent().getTimestamp()); | |
88 | TmfSignalManager.register(this); | |
89 | // this.currLocation.setTimestamp(this.fEvent.getTimestamp().getValue()); | |
90 | // this.fStartTime = new TmfSimpleTimestamp(this.currLocation | |
91 | // .getLocation().getStartTime()); | |
92 | // this.fEndTime = new TmfSimpleTimestamp(this.currLocation | |
93 | // .getLocation().getEndTime()); | |
94 | // setTimeRange(new TmfTimeRange(this.fStartTime.clone(), | |
95 | // this.fEndTime.clone())); | |
96 | } | |
97 | ||
98 | @Override | |
8636b448 | 99 | public void indexTrace(boolean waitForCompletion) { |
a3fc8213 AM |
100 | } |
101 | ||
102 | @Override | |
103 | public void dispose() { | |
104 | TmfSignalManager.deregister(this); | |
105 | } | |
106 | ||
107 | @Override | |
108 | public void broadcast(TmfSignal signal) { | |
109 | TmfSignalManager.dispatchSignal(signal); | |
110 | } | |
111 | ||
112 | @Override | |
113 | public boolean validate(IProject project, String path) { | |
114 | try { | |
115 | final CTFTrace temp = new CTFTrace(path); | |
116 | return temp.majortIsSet(); // random test | |
90235d6b AM |
117 | } catch (CTFReaderException e) { |
118 | /* Nope, not a CTF trace we can read */ | |
119 | return false; | |
a3fc8213 | 120 | } |
a3fc8213 AM |
121 | } |
122 | ||
123 | @Override | |
124 | public CtfTmfTrace clone() throws CloneNotSupportedException { | |
125 | CtfTmfTrace clone = null; | |
126 | clone = (CtfTmfTrace) super.clone(); | |
127 | clone.setfCheckpoints(this.fCheckpoints); | |
128 | clone.fStartTime = this.fStartTime.clone(); | |
129 | clone.fEndTime = this.fEndTime.clone(); | |
130 | clone.fTrace = this.fTrace; | |
131 | return clone; | |
132 | } | |
133 | ||
a3fc8213 AM |
134 | // ------------------------------------------------------------------------ |
135 | // Accessors | |
136 | // ------------------------------------------------------------------------ | |
137 | ||
138 | /** | |
139 | * @return the trace path | |
140 | */ | |
141 | @Override | |
142 | public String getPath() { | |
143 | return this.fTrace.getPath(); | |
144 | } | |
145 | ||
146 | @Override | |
147 | public String getName() { | |
148 | String temp[] = this.fTrace.getPath().split( | |
149 | System.getProperty("file.separator")); //$NON-NLS-1$ | |
150 | if (temp.length > 2) { | |
151 | return temp[temp.length - 1]; | |
152 | } | |
153 | return temp[0]; | |
154 | } | |
155 | ||
156 | @Override | |
3118edf1 | 157 | public int getIndexPageSize() { |
a3fc8213 AM |
158 | return this.fIndexPageSize; |
159 | } | |
160 | ||
161 | @Override | |
162 | public long getNbEvents() { | |
163 | return this.fNbEvents; | |
164 | } | |
165 | ||
166 | @Override | |
167 | public TmfTimeRange getTimeRange() { | |
168 | return new TmfTimeRange(this.fStartTime, this.fEndTime); | |
169 | } | |
170 | ||
171 | @Override | |
172 | public ITmfTimestamp getStartTime() { | |
173 | return this.fStartTime; | |
174 | } | |
175 | ||
176 | @Override | |
177 | public ITmfTimestamp getEndTime() { | |
178 | return this.fEndTime; | |
179 | } | |
180 | ||
181 | @Override | |
182 | public ITmfLocation<?> getCurrentLocation() { | |
183 | return iterator.getLocation(); | |
184 | } | |
185 | ||
186 | @Override | |
187 | public long getRank(ITmfTimestamp timestamp) { | |
188 | ITmfContext context = seekEvent(timestamp); | |
189 | return context.getRank(); | |
190 | } | |
191 | ||
192 | // ------------------------------------------------------------------------ | |
193 | // Operators | |
194 | // ------------------------------------------------------------------------ | |
195 | ||
196 | protected void setTimeRange(TmfTimeRange range) { | |
197 | this.fStartTime = range.getStartTime(); | |
198 | this.fEndTime = range.getEndTime(); | |
199 | } | |
200 | ||
201 | protected void setStartTime(ITmfTimestamp startTime) { | |
202 | this.fStartTime = startTime; | |
203 | } | |
204 | ||
205 | protected void setEndTime(ITmfTimestamp endTime) { | |
206 | this.fEndTime = endTime; | |
207 | } | |
208 | ||
209 | // ------------------------------------------------------------------------ | |
210 | // TmfProvider | |
211 | // ------------------------------------------------------------------------ | |
212 | ||
213 | @Override | |
214 | public ITmfContext armRequest(ITmfDataRequest<CtfTmfEvent> request) { | |
215 | if ((request instanceof ITmfEventRequest<?>) | |
216 | && !TmfTimestamp.BIG_BANG.equals(((ITmfEventRequest<CtfTmfEvent>) request).getRange().getStartTime()) | |
217 | && (request.getIndex() == 0)) { | |
218 | ITmfContext context = seekEvent(((ITmfEventRequest<CtfTmfEvent>) request).getRange().getStartTime()); | |
219 | ((ITmfEventRequest<CtfTmfEvent>) request).setStartIndex((int) context.getRank()); | |
220 | return context; | |
221 | } | |
222 | return seekEvent(request.getIndex()); | |
223 | } | |
224 | ||
225 | /** | |
226 | * The trace reader keeps its own iterator: the "context" parameter here | |
227 | * will be ignored. | |
228 | * | |
229 | * If you wish to specify a new context, instantiate a new CtfIterator and | |
230 | * seek() it to where you want, and use that to read events. | |
231 | * | |
232 | * FIXME merge with getNextEvent below once they both use the same parameter | |
233 | * type. | |
234 | */ | |
235 | @Override | |
236 | public CtfTmfEvent getNext(ITmfContext context) { | |
237 | iterator.advance(); | |
238 | return iterator.getCurrentEvent(); | |
239 | } | |
240 | ||
241 | // ------------------------------------------------------------------------ | |
242 | // ITmfTrace | |
243 | // ------------------------------------------------------------------------ | |
244 | ||
245 | @Override | |
246 | public ITmfContext seekLocation(ITmfLocation<?> location) { | |
247 | iterator.setLocation(location); | |
248 | return iterator; | |
249 | } | |
250 | ||
251 | @Override | |
252 | public double getLocationRatio(ITmfLocation<?> location) { | |
253 | return 0; | |
254 | } | |
255 | ||
256 | @Override | |
257 | public long getStreamingInterval() { | |
258 | return 0; | |
259 | } | |
260 | ||
261 | @Override | |
262 | public ITmfContext seekEvent(ITmfTimestamp timestamp) { | |
263 | iterator.seek(timestamp.getValue()); | |
264 | return iterator; | |
265 | } | |
266 | ||
267 | /** | |
268 | * Seek by rank | |
269 | */ | |
270 | @Override | |
271 | public ITmfContext seekEvent(long rank) { | |
272 | iterator.setRank(rank); | |
273 | return iterator; | |
274 | } | |
275 | ||
276 | /** | |
277 | * Seek rank ratio | |
278 | */ | |
279 | @Override | |
280 | public ITmfContext seekLocation(double ratio) { | |
281 | iterator.seek((long) (this.fNbEvents * ratio)); | |
282 | return iterator; | |
283 | } | |
284 | ||
285 | @Override | |
286 | public CtfTmfEvent getNextEvent(ITmfContext context) { | |
287 | iterator.advance(); | |
288 | return iterator.getCurrentEvent(); | |
289 | } | |
290 | ||
291 | @Override | |
292 | public CtfTmfEvent parseEvent(ITmfContext context) { | |
293 | return iterator.getCurrentEvent(); | |
294 | } | |
295 | ||
296 | public Vector<TmfCheckpoint> getfCheckpoints() { | |
297 | return this.fCheckpoints; | |
298 | } | |
299 | ||
300 | public void setfCheckpoints(Vector<TmfCheckpoint> fCheckpoints) { | |
301 | this.fCheckpoints = fCheckpoints; | |
302 | } | |
303 | ||
304 | @Override | |
305 | public IResource getResource() { | |
306 | return this.fResource; | |
307 | } | |
308 | ||
309 | @Override | |
310 | public void setResource(IResource fResource) { | |
311 | this.fResource = fResource; | |
312 | } | |
313 | ||
90235d6b | 314 | CTFTrace getCTFTrace() { |
a3fc8213 AM |
315 | return fTrace; |
316 | } | |
8636b448 | 317 | |
a3fc8213 | 318 | } |