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6151d86c | 1 | /******************************************************************************* |
c8422608 | 2 | * Copyright (c) 2010, 2013 Ericsson |
6151d86c PT |
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 | * Patrick Tasse - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.internal.tmf.ui.parsers.custom; | |
14 | ||
15 | import java.io.FileNotFoundException; | |
16 | import java.io.IOException; | |
17 | import java.util.HashMap; | |
18 | import java.util.Iterator; | |
19 | import java.util.List; | |
20 | import java.util.Map.Entry; | |
21 | import java.util.regex.Matcher; | |
22 | ||
23 | import org.eclipse.core.resources.IProject; | |
24 | import org.eclipse.core.resources.IResource; | |
25 | import org.eclipse.linuxtools.internal.tmf.ui.Activator; | |
26 | import org.eclipse.linuxtools.internal.tmf.ui.parsers.custom.CustomTxtTraceDefinition.InputLine; | |
27 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; | |
6151d86c PT |
28 | import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException; |
29 | import org.eclipse.linuxtools.tmf.core.io.BufferedRandomAccessFile; | |
3bd46eef | 30 | import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp; |
6151d86c PT |
31 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; |
32 | import org.eclipse.linuxtools.tmf.core.trace.ITmfEventParser; | |
33 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; | |
b0422293 | 34 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTraceIndexer; |
6151d86c PT |
35 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; |
36 | import org.eclipse.linuxtools.tmf.core.trace.TmfLongLocation; | |
37 | import org.eclipse.linuxtools.tmf.core.trace.TmfTrace; | |
38 | ||
a0a88f65 AM |
39 | /** |
40 | * Base class for custom plain text traces. | |
41 | * | |
42 | * @author Patrick Tassé | |
43 | */ | |
6151d86c PT |
44 | public class CustomTxtTrace extends TmfTrace implements ITmfEventParser { |
45 | ||
46 | private static final TmfLongLocation NULL_LOCATION = new TmfLongLocation((Long) null); | |
47 | private static final int DEFAULT_CACHE_SIZE = 100; | |
48 | ||
49 | private final CustomTxtTraceDefinition fDefinition; | |
50 | private final CustomTxtEventType fEventType; | |
51 | private BufferedRandomAccessFile fFile; | |
52 | ||
a0a88f65 AM |
53 | /** |
54 | * Basic constructor. | |
55 | * | |
56 | * @param definition | |
57 | * Text trace definition | |
58 | */ | |
6151d86c PT |
59 | public CustomTxtTrace(final CustomTxtTraceDefinition definition) { |
60 | fDefinition = definition; | |
61 | fEventType = new CustomTxtEventType(fDefinition); | |
62 | setCacheSize(DEFAULT_CACHE_SIZE); | |
63 | } | |
64 | ||
a0a88f65 AM |
65 | /** |
66 | * Full constructor. | |
67 | * | |
68 | * @param resource | |
69 | * Trace's resource. | |
70 | * @param definition | |
71 | * Text trace definition | |
72 | * @param path | |
73 | * Path to the trace file | |
74 | * @param cacheSize | |
75 | * Cache size to use | |
76 | * @throws TmfTraceException | |
77 | * If we couldn't open the trace at 'path' | |
78 | */ | |
79 | public CustomTxtTrace(final IResource resource, | |
80 | final CustomTxtTraceDefinition definition, final String path, | |
81 | final int cacheSize) throws TmfTraceException { | |
6151d86c PT |
82 | this(definition); |
83 | setCacheSize((cacheSize > 0) ? cacheSize : DEFAULT_CACHE_SIZE); | |
84 | initTrace(resource, path, CustomTxtEvent.class); | |
85 | } | |
86 | ||
87 | @Override | |
88 | public void initTrace(final IResource resource, final String path, final Class<? extends ITmfEvent> eventType) throws TmfTraceException { | |
89 | super.initTrace(resource, path, eventType); | |
90 | try { | |
91 | fFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$ | |
92 | } catch (IOException e) { | |
93 | throw new TmfTraceException(e.getMessage(), e); | |
94 | } | |
6151d86c PT |
95 | } |
96 | ||
97 | @Override | |
98 | public synchronized void dispose() { | |
99 | super.dispose(); | |
100 | if (fFile != null) { | |
101 | try { | |
102 | fFile.close(); | |
103 | } catch (IOException e) { | |
104 | } finally { | |
105 | fFile = null; | |
106 | } | |
107 | } | |
108 | } | |
109 | ||
b0422293 PT |
110 | @Override |
111 | public ITmfTraceIndexer getIndexer() { | |
112 | return super.getIndexer(); | |
113 | } | |
114 | ||
6151d86c PT |
115 | @Override |
116 | public synchronized TmfContext seekEvent(final ITmfLocation location) { | |
117 | final CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
118 | if (NULL_LOCATION.equals(location) || fFile == null) { | |
119 | return context; | |
120 | } | |
121 | try { | |
122 | if (location == null) { | |
123 | fFile.seek(0); | |
124 | } else if (location.getLocationInfo() instanceof Long) { | |
125 | fFile.seek((Long) location.getLocationInfo()); | |
126 | } | |
127 | String line; | |
128 | long rawPos = fFile.getFilePointer(); | |
129 | while ((line = fFile.getNextLine()) != null) { | |
130 | for (final InputLine input : getFirstLines()) { | |
131 | final Matcher matcher = input.getPattern().matcher(line); | |
132 | if (matcher.find()) { | |
133 | context.setLocation(new TmfLongLocation(rawPos)); | |
134 | context.firstLineMatcher = matcher; | |
135 | context.firstLine = line; | |
136 | context.nextLineLocation = fFile.getFilePointer(); | |
137 | context.inputLine = input; | |
138 | return context; | |
139 | } | |
140 | } | |
141 | rawPos = fFile.getFilePointer(); | |
142 | } | |
143 | return context; | |
144 | } catch (final FileNotFoundException e) { | |
145 | Activator.getDefault().logError("Error seeking event. File not found: " + getPath(), e); //$NON-NLS-1$ | |
146 | return context; | |
147 | } catch (final IOException e) { | |
148 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
149 | return context; | |
150 | } | |
151 | ||
152 | } | |
153 | ||
154 | @Override | |
155 | public synchronized TmfContext seekEvent(final double ratio) { | |
156 | if (fFile == null) { | |
157 | return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
158 | } | |
159 | try { | |
91f6e587 | 160 | long pos = Math.round(ratio * fFile.length()); |
6151d86c PT |
161 | while (pos > 0) { |
162 | fFile.seek(pos - 1); | |
163 | if (fFile.read() == '\n') { | |
164 | break; | |
165 | } | |
166 | pos--; | |
167 | } | |
168 | final ITmfLocation location = new TmfLongLocation(pos); | |
169 | final TmfContext context = seekEvent(location); | |
170 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
171 | return context; | |
172 | } catch (final IOException e) { | |
173 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
174 | return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
175 | } | |
176 | } | |
177 | ||
178 | @Override | |
179 | public synchronized double getLocationRatio(final ITmfLocation location) { | |
180 | if (fFile == null) { | |
181 | return 0; | |
182 | } | |
183 | try { | |
184 | if (location.getLocationInfo() instanceof Long) { | |
185 | return (double) ((Long) location.getLocationInfo()) / fFile.length(); | |
186 | } | |
187 | } catch (final IOException e) { | |
188 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
189 | } | |
190 | return 0; | |
191 | } | |
192 | ||
193 | @Override | |
194 | public ITmfLocation getCurrentLocation() { | |
195 | // TODO Auto-generated method stub | |
196 | return null; | |
197 | } | |
198 | ||
199 | @Override | |
200 | public synchronized CustomTxtEvent parseEvent(final ITmfContext tmfContext) { | |
201 | ITmfContext context = seekEvent(tmfContext.getLocation()); | |
202 | return parse(context); | |
203 | } | |
204 | ||
205 | @Override | |
206 | public synchronized CustomTxtEvent getNext(final ITmfContext context) { | |
4c9f2944 | 207 | final ITmfContext savedContext = new TmfContext(context.getLocation(), context.getRank()); |
6151d86c PT |
208 | final CustomTxtEvent event = parse(context); |
209 | if (event != null) { | |
210 | updateAttributes(savedContext, event.getTimestamp()); | |
211 | context.increaseRank(); | |
212 | } | |
213 | return event; | |
214 | } | |
215 | ||
216 | private synchronized CustomTxtEvent parse(final ITmfContext tmfContext) { | |
217 | if (fFile == null) { | |
218 | return null; | |
219 | } | |
220 | if (!(tmfContext instanceof CustomTxtTraceContext)) { | |
221 | return null; | |
222 | } | |
223 | ||
224 | final CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext; | |
9cbe7899 | 225 | if (context.getLocation() == null || !(context.getLocation().getLocationInfo() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) { |
6151d86c PT |
226 | return null; |
227 | } | |
228 | ||
229 | CustomTxtEvent event = parseFirstLine(context); | |
230 | ||
231 | final HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>(); | |
232 | InputLine currentInput = null; | |
233 | if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) { | |
234 | currentInput = context.inputLine.childrenInputs.get(0); | |
235 | countMap.put(currentInput, 0); | |
236 | } | |
237 | ||
238 | try { | |
239 | if (fFile.getFilePointer() != context.nextLineLocation) { | |
240 | fFile.seek(context.nextLineLocation); | |
241 | } | |
242 | String line; | |
243 | long rawPos = fFile.getFilePointer(); | |
244 | while ((line = fFile.getNextLine()) != null) { | |
245 | boolean processed = false; | |
246 | if (currentInput == null) { | |
247 | for (final InputLine input : getFirstLines()) { | |
248 | final Matcher matcher = input.getPattern().matcher(line); | |
249 | if (matcher.find()) { | |
250 | context.setLocation(new TmfLongLocation(rawPos)); | |
251 | context.firstLineMatcher = matcher; | |
252 | context.firstLine = line; | |
253 | context.nextLineLocation = fFile.getFilePointer(); | |
254 | context.inputLine = input; | |
255 | return event; | |
256 | } | |
257 | } | |
258 | } else { | |
259 | if (countMap.get(currentInput) >= currentInput.getMinCount()) { | |
260 | final List<InputLine> nextInputs = currentInput.getNextInputs(countMap); | |
261 | if (nextInputs.size() == 0 || nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) { | |
262 | for (final InputLine input : getFirstLines()) { | |
263 | final Matcher matcher = input.getPattern().matcher(line); | |
264 | if (matcher.find()) { | |
265 | context.setLocation(new TmfLongLocation(rawPos)); | |
266 | context.firstLineMatcher = matcher; | |
267 | context.firstLine = line; | |
268 | context.nextLineLocation = fFile.getFilePointer(); | |
269 | context.inputLine = input; | |
270 | return event; | |
271 | } | |
272 | } | |
273 | } | |
274 | for (final InputLine input : nextInputs) { | |
275 | final Matcher matcher = input.getPattern().matcher(line); | |
276 | if (matcher.find()) { | |
277 | event.processGroups(input, matcher); | |
278 | currentInput = input; | |
279 | if (countMap.get(currentInput) == null) { | |
280 | countMap.put(currentInput, 1); | |
281 | } else { | |
282 | countMap.put(currentInput, countMap.get(currentInput) + 1); | |
283 | } | |
284 | Iterator<InputLine> iter = countMap.keySet().iterator(); | |
285 | while (iter.hasNext()) { | |
286 | final InputLine inputLine = iter.next(); | |
287 | if (inputLine.level > currentInput.level) { | |
288 | iter.remove(); | |
289 | } | |
290 | } | |
291 | if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) { | |
292 | currentInput = currentInput.childrenInputs.get(0); | |
293 | countMap.put(currentInput, 0); | |
294 | } else if (countMap.get(currentInput) >= currentInput.getMaxCount()) { | |
295 | if (currentInput.getNextInputs(countMap).size() > 0) { | |
296 | currentInput = currentInput.getNextInputs(countMap).get(0); | |
297 | if (countMap.get(currentInput) == null) { | |
298 | countMap.put(currentInput, 0); | |
299 | } | |
300 | iter = countMap.keySet().iterator(); | |
301 | while (iter.hasNext()) { | |
302 | final InputLine inputLine = iter.next(); | |
303 | if (inputLine.level > currentInput.level) { | |
304 | iter.remove(); | |
305 | } | |
306 | } | |
307 | } else { | |
308 | currentInput = null; | |
309 | } | |
310 | } | |
311 | processed = true; | |
312 | break; | |
313 | } | |
314 | } | |
315 | } | |
3dca7aa5 | 316 | if (!processed && currentInput != null) { |
6151d86c PT |
317 | final Matcher matcher = currentInput.getPattern().matcher(line); |
318 | if (matcher.find()) { | |
319 | event.processGroups(currentInput, matcher); | |
320 | countMap.put(currentInput, countMap.get(currentInput) + 1); | |
321 | if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) { | |
322 | currentInput = currentInput.childrenInputs.get(0); | |
323 | countMap.put(currentInput, 0); | |
324 | } else if (countMap.get(currentInput) >= currentInput.getMaxCount()) { | |
325 | if (currentInput.getNextInputs(countMap).size() > 0) { | |
326 | currentInput = currentInput.getNextInputs(countMap).get(0); | |
327 | if (countMap.get(currentInput) == null) { | |
328 | countMap.put(currentInput, 0); | |
329 | } | |
330 | final Iterator<InputLine> iter = countMap.keySet().iterator(); | |
331 | while (iter.hasNext()) { | |
332 | final InputLine inputLine = iter.next(); | |
333 | if (inputLine.level > currentInput.level) { | |
334 | iter.remove(); | |
335 | } | |
336 | } | |
337 | } else { | |
338 | currentInput = null; | |
339 | } | |
340 | } | |
341 | } | |
342 | ((StringBuffer) event.getContent().getValue()).append("\n").append(line); //$NON-NLS-1$ | |
343 | } | |
344 | } | |
345 | rawPos = fFile.getFilePointer(); | |
346 | } | |
347 | } catch (final IOException e) { | |
348 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
349 | } | |
350 | for (final Entry<InputLine, Integer> entry : countMap.entrySet()) { | |
351 | if (entry.getValue() < entry.getKey().getMinCount()) { | |
352 | event = null; | |
353 | } | |
354 | } | |
355 | context.setLocation(NULL_LOCATION); | |
356 | return event; | |
357 | } | |
358 | ||
a0a88f65 AM |
359 | /** |
360 | * @return The first few lines of the text file | |
361 | */ | |
6151d86c PT |
362 | public List<InputLine> getFirstLines() { |
363 | return fDefinition.inputs; | |
364 | } | |
365 | ||
a0a88f65 AM |
366 | /** |
367 | * Parse the first line of the trace (to recognize the type). | |
368 | * | |
369 | * @param context | |
370 | * Trace context | |
371 | * @return The first event | |
372 | */ | |
6151d86c PT |
373 | public CustomTxtEvent parseFirstLine(final CustomTxtTraceContext context) { |
374 | final CustomTxtEvent event = new CustomTxtEvent(fDefinition, this, TmfTimestamp.ZERO, "", fEventType, ""); //$NON-NLS-1$ //$NON-NLS-2$ | |
375 | event.processGroups(context.inputLine, context.firstLineMatcher); | |
376 | event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine))); | |
377 | return event; | |
378 | } | |
379 | ||
a0a88f65 AM |
380 | /** |
381 | * Get the trace definition. | |
382 | * | |
383 | * @return The trace definition | |
384 | */ | |
6151d86c PT |
385 | public CustomTraceDefinition getDefinition() { |
386 | return fDefinition; | |
387 | } | |
388 | ||
389 | /* (non-Javadoc) | |
390 | * @see org.eclipse.linuxtools.tmf.core.trace.ITmfTrace#validate(org.eclipse.core.resources.IProject, java.lang.String) | |
391 | */ | |
392 | @Override | |
393 | public boolean validate(IProject project, String path) { | |
394 | return fileExists(path); | |
395 | } | |
396 | } |