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6151d86c | 1 | /******************************************************************************* |
60ae41e1 | 2 | * Copyright (c) 2010, 2014 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 | ||
47aafe74 | 13 | package org.eclipse.linuxtools.tmf.core.parsers.custom; |
6151d86c PT |
14 | |
15 | import java.io.ByteArrayInputStream; | |
eb8ea213 | 16 | import java.io.File; |
6151d86c PT |
17 | import java.io.IOException; |
18 | import java.io.RandomAccessFile; | |
032ecd45 | 19 | import java.nio.ByteBuffer; |
6151d86c PT |
20 | |
21 | import javax.xml.parsers.DocumentBuilder; | |
22 | import javax.xml.parsers.DocumentBuilderFactory; | |
23 | import javax.xml.parsers.ParserConfigurationException; | |
eb8ea213 | 24 | |
6151d86c PT |
25 | import org.eclipse.core.resources.IProject; |
26 | import org.eclipse.core.resources.IResource; | |
a3db8436 AM |
27 | import org.eclipse.core.runtime.IStatus; |
28 | import org.eclipse.core.runtime.Status; | |
47aafe74 | 29 | import org.eclipse.linuxtools.internal.tmf.core.Activator; |
6151d86c | 30 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; |
6151d86c PT |
31 | import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException; |
32 | import org.eclipse.linuxtools.tmf.core.io.BufferedRandomAccessFile; | |
47aafe74 AM |
33 | import org.eclipse.linuxtools.tmf.core.parsers.custom.CustomXmlTraceDefinition.InputAttribute; |
34 | import org.eclipse.linuxtools.tmf.core.parsers.custom.CustomXmlTraceDefinition.InputElement; | |
3bd46eef | 35 | import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp; |
6151d86c PT |
36 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; |
37 | import org.eclipse.linuxtools.tmf.core.trace.ITmfEventParser; | |
6151d86c | 38 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; |
6151d86c | 39 | import org.eclipse.linuxtools.tmf.core.trace.TmfTrace; |
cd43d683 | 40 | import org.eclipse.linuxtools.tmf.core.trace.TraceValidationStatus; |
032ecd45 | 41 | import org.eclipse.linuxtools.tmf.core.trace.indexer.ITmfPersistentlyIndexable; |
a3db8436 | 42 | import org.eclipse.linuxtools.tmf.core.trace.indexer.ITmfTraceIndexer; |
032ecd45 MAL |
43 | import org.eclipse.linuxtools.tmf.core.trace.indexer.TmfBTreeTraceIndexer; |
44 | import org.eclipse.linuxtools.tmf.core.trace.indexer.checkpoint.ITmfCheckpoint; | |
45 | import org.eclipse.linuxtools.tmf.core.trace.indexer.checkpoint.TmfCheckpoint; | |
a3db8436 AM |
46 | import org.eclipse.linuxtools.tmf.core.trace.location.ITmfLocation; |
47 | import org.eclipse.linuxtools.tmf.core.trace.location.TmfLongLocation; | |
6151d86c PT |
48 | import org.w3c.dom.Document; |
49 | import org.w3c.dom.Element; | |
50 | import org.w3c.dom.Node; | |
51 | import org.w3c.dom.NodeList; | |
52 | import org.xml.sax.EntityResolver; | |
53 | import org.xml.sax.ErrorHandler; | |
54 | import org.xml.sax.InputSource; | |
55 | import org.xml.sax.SAXException; | |
56 | import org.xml.sax.SAXParseException; | |
57 | ||
a0a88f65 AM |
58 | /** |
59 | * Trace object for custom XML trace parsers. | |
60 | * | |
61 | * @author Patrick Tassé | |
47aafe74 | 62 | * @since 3.0 |
a0a88f65 | 63 | */ |
032ecd45 | 64 | public class CustomXmlTrace extends TmfTrace implements ITmfEventParser, ITmfPersistentlyIndexable { |
6151d86c | 65 | |
661becf8 | 66 | private static final TmfLongLocation NULL_LOCATION = new TmfLongLocation(-1L); |
6151d86c | 67 | private static final int DEFAULT_CACHE_SIZE = 100; |
cd43d683 PT |
68 | private static final int MAX_LINES = 100; |
69 | private static final int CONFIDENCE = 100; | |
6151d86c PT |
70 | |
71 | private final CustomXmlTraceDefinition fDefinition; | |
72 | private final CustomXmlEventType fEventType; | |
73 | private final InputElement fRecordInputElement; | |
74 | private BufferedRandomAccessFile fFile; | |
75 | ||
a0a88f65 AM |
76 | /** |
77 | * Basic constructor | |
78 | * | |
eb8ea213 MK |
79 | * @param definition |
80 | * Trace definition | |
a0a88f65 | 81 | */ |
6151d86c PT |
82 | public CustomXmlTrace(final CustomXmlTraceDefinition definition) { |
83 | fDefinition = definition; | |
84 | fEventType = new CustomXmlEventType(fDefinition); | |
85 | fRecordInputElement = getRecordInputElement(fDefinition.rootInputElement); | |
86 | setCacheSize(DEFAULT_CACHE_SIZE); | |
87 | } | |
88 | ||
a0a88f65 AM |
89 | /** |
90 | * Full constructor | |
91 | * | |
92 | * @param resource | |
93 | * Trace resource | |
94 | * @param definition | |
95 | * Trace definition | |
96 | * @param path | |
97 | * Path to the trace/log file | |
98 | * @param pageSize | |
99 | * Page size to use | |
100 | * @throws TmfTraceException | |
101 | * If the trace/log couldn't be opened | |
102 | */ | |
103 | public CustomXmlTrace(final IResource resource, | |
104 | final CustomXmlTraceDefinition definition, final String path, | |
105 | final int pageSize) throws TmfTraceException { | |
6151d86c PT |
106 | this(definition); |
107 | setCacheSize((pageSize > 0) ? pageSize : DEFAULT_CACHE_SIZE); | |
108 | initTrace(resource, path, CustomXmlEvent.class); | |
109 | } | |
110 | ||
111 | @Override | |
112 | public void initTrace(final IResource resource, final String path, final Class<? extends ITmfEvent> eventType) throws TmfTraceException { | |
113 | super.initTrace(resource, path, eventType); | |
114 | try { | |
115 | fFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$ | |
116 | } catch (IOException e) { | |
117 | throw new TmfTraceException(e.getMessage(), e); | |
118 | } | |
6151d86c PT |
119 | } |
120 | ||
121 | @Override | |
122 | public synchronized void dispose() { | |
123 | super.dispose(); | |
124 | if (fFile != null) { | |
125 | try { | |
126 | fFile.close(); | |
127 | } catch (IOException e) { | |
128 | } finally { | |
129 | fFile = null; | |
130 | } | |
131 | } | |
132 | } | |
133 | ||
b0422293 PT |
134 | @Override |
135 | public ITmfTraceIndexer getIndexer() { | |
136 | return super.getIndexer(); | |
137 | } | |
138 | ||
6151d86c PT |
139 | @Override |
140 | public synchronized TmfContext seekEvent(final ITmfLocation location) { | |
141 | final CustomXmlTraceContext context = new CustomXmlTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
142 | if (NULL_LOCATION.equals(location) || fFile == null) { | |
143 | return context; | |
144 | } | |
145 | try { | |
146 | if (location == null) { | |
147 | fFile.seek(0); | |
148 | } else if (location.getLocationInfo() instanceof Long) { | |
149 | fFile.seek((Long) location.getLocationInfo()); | |
150 | } | |
6151d86c | 151 | long rawPos = fFile.getFilePointer(); |
cd43d683 PT |
152 | String line = fFile.getNextLine(); |
153 | while (line != null) { | |
9fa9acbb | 154 | final int idx = indexOfElement(fRecordInputElement.elementName, line, 0); |
6151d86c PT |
155 | if (idx != -1) { |
156 | context.setLocation(new TmfLongLocation(rawPos + idx)); | |
157 | return context; | |
158 | } | |
159 | rawPos = fFile.getFilePointer(); | |
cd43d683 | 160 | line = fFile.getNextLine(); |
6151d86c PT |
161 | } |
162 | return context; | |
163 | } catch (final IOException e) { | |
47aafe74 | 164 | Activator.logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ |
6151d86c PT |
165 | return context; |
166 | } | |
167 | ||
168 | } | |
169 | ||
170 | @Override | |
171 | public synchronized TmfContext seekEvent(final double ratio) { | |
172 | if (fFile == null) { | |
173 | return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
174 | } | |
175 | try { | |
91f6e587 | 176 | long pos = Math.round(ratio * fFile.length()); |
6151d86c PT |
177 | while (pos > 0) { |
178 | fFile.seek(pos - 1); | |
179 | if (fFile.read() == '\n') { | |
180 | break; | |
181 | } | |
182 | pos--; | |
183 | } | |
184 | final ITmfLocation location = new TmfLongLocation(pos); | |
185 | final TmfContext context = seekEvent(location); | |
186 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
187 | return context; | |
188 | } catch (final IOException e) { | |
47aafe74 | 189 | Activator.logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ |
6151d86c PT |
190 | return new CustomXmlTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); |
191 | } | |
192 | } | |
193 | ||
194 | @Override | |
195 | public synchronized double getLocationRatio(final ITmfLocation location) { | |
196 | if (fFile == null) { | |
197 | return 0; | |
198 | } | |
199 | try { | |
200 | if (location.getLocationInfo() instanceof Long) { | |
0126a8ca | 201 | return ((Long) location.getLocationInfo()).doubleValue() / fFile.length(); |
6151d86c PT |
202 | } |
203 | } catch (final IOException e) { | |
47aafe74 | 204 | Activator.logError("Error getting location ration. File: " + getPath(), e); //$NON-NLS-1$ |
6151d86c PT |
205 | } |
206 | return 0; | |
207 | } | |
208 | ||
209 | @Override | |
210 | public ITmfLocation getCurrentLocation() { | |
211 | // TODO Auto-generated method stub | |
212 | return null; | |
213 | } | |
214 | ||
215 | @Override | |
216 | public synchronized CustomXmlEvent parseEvent(final ITmfContext tmfContext) { | |
217 | ITmfContext context = seekEvent(tmfContext.getLocation()); | |
218 | return parse(context); | |
219 | } | |
220 | ||
221 | @Override | |
222 | public synchronized CustomXmlEvent getNext(final ITmfContext context) { | |
4c9f2944 | 223 | final ITmfContext savedContext = new TmfContext(context.getLocation(), context.getRank()); |
6151d86c PT |
224 | final CustomXmlEvent event = parse(context); |
225 | if (event != null) { | |
226 | updateAttributes(savedContext, event.getTimestamp()); | |
227 | context.increaseRank(); | |
228 | } | |
229 | return event; | |
230 | } | |
231 | ||
232 | private synchronized CustomXmlEvent parse(final ITmfContext tmfContext) { | |
233 | if (fFile == null) { | |
234 | return null; | |
235 | } | |
236 | if (!(tmfContext instanceof CustomXmlTraceContext)) { | |
237 | return null; | |
238 | } | |
239 | ||
240 | final CustomXmlTraceContext context = (CustomXmlTraceContext) tmfContext; | |
9cbe7899 | 241 | if (context.getLocation() == null || !(context.getLocation().getLocationInfo() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) { |
6151d86c PT |
242 | return null; |
243 | } | |
244 | ||
245 | CustomXmlEvent event = null; | |
246 | try { | |
eb8ea213 | 247 | if (fFile.getFilePointer() != (Long) context.getLocation().getLocationInfo() + 1) |
6151d86c | 248 | { |
eb8ea213 | 249 | fFile.seek((Long) context.getLocation().getLocationInfo() + 1); // +1 is for the < |
6151d86c PT |
250 | } |
251 | final StringBuffer elementBuffer = new StringBuffer("<"); //$NON-NLS-1$ | |
252 | readElement(elementBuffer, fFile); | |
253 | final Element element = parseElementBuffer(elementBuffer); | |
254 | ||
255 | event = extractEvent(element, fRecordInputElement); | |
256 | ((StringBuffer) event.getContent().getValue()).append(elementBuffer); | |
257 | ||
6151d86c | 258 | long rawPos = fFile.getFilePointer(); |
cd43d683 PT |
259 | String line = fFile.getNextLine(); |
260 | while (line != null) { | |
9fa9acbb | 261 | final int idx = indexOfElement(fRecordInputElement.elementName, line, 0); |
6151d86c PT |
262 | if (idx != -1) { |
263 | context.setLocation(new TmfLongLocation(rawPos + idx)); | |
264 | return event; | |
265 | } | |
266 | rawPos = fFile.getFilePointer(); | |
cd43d683 | 267 | line = fFile.getNextLine(); |
6151d86c PT |
268 | } |
269 | } catch (final IOException e) { | |
47aafe74 | 270 | Activator.logError("Error parsing event. File: " + getPath(), e); //$NON-NLS-1$ |
6151d86c PT |
271 | |
272 | } | |
273 | context.setLocation(NULL_LOCATION); | |
274 | return event; | |
275 | } | |
276 | ||
277 | private Element parseElementBuffer(final StringBuffer elementBuffer) { | |
278 | try { | |
279 | final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); | |
280 | final DocumentBuilder db = dbf.newDocumentBuilder(); | |
281 | ||
282 | // The following allows xml parsing without access to the dtd | |
eb8ea213 | 283 | final EntityResolver resolver = new EntityResolver() { |
6151d86c | 284 | @Override |
eb8ea213 | 285 | public InputSource resolveEntity(final String publicId, final String systemId) { |
6151d86c PT |
286 | final String empty = ""; //$NON-NLS-1$ |
287 | final ByteArrayInputStream bais = new ByteArrayInputStream(empty.getBytes()); | |
288 | return new InputSource(bais); | |
289 | } | |
290 | }; | |
291 | db.setEntityResolver(resolver); | |
292 | ||
293 | // The following catches xml parsing exceptions | |
eb8ea213 | 294 | db.setErrorHandler(new ErrorHandler() { |
6151d86c PT |
295 | @Override |
296 | public void error(final SAXParseException saxparseexception) throws SAXException {} | |
eb8ea213 | 297 | |
6151d86c PT |
298 | @Override |
299 | public void warning(final SAXParseException saxparseexception) throws SAXException {} | |
eb8ea213 | 300 | |
6151d86c PT |
301 | @Override |
302 | public void fatalError(final SAXParseException saxparseexception) throws SAXException { | |
303 | throw saxparseexception; | |
eb8ea213 MK |
304 | } |
305 | }); | |
6151d86c PT |
306 | |
307 | final Document doc = db.parse(new ByteArrayInputStream(elementBuffer.toString().getBytes())); | |
308 | return doc.getDocumentElement(); | |
309 | } catch (final ParserConfigurationException e) { | |
47aafe74 | 310 | Activator.logError("Error parsing element buffer. File:" + getPath(), e); //$NON-NLS-1$ |
6151d86c | 311 | } catch (final SAXException e) { |
47aafe74 | 312 | Activator.logError("Error parsing element buffer. File:" + getPath(), e); //$NON-NLS-1$ |
6151d86c | 313 | } catch (final IOException e) { |
47aafe74 | 314 | Activator.logError("Error parsing element buffer. File: " + getPath(), e); //$NON-NLS-1$ |
6151d86c PT |
315 | } |
316 | return null; | |
317 | } | |
318 | ||
9fa9acbb PT |
319 | private static int indexOfElement(String elementName, String line, int fromIndex) { |
320 | final String recordElementStart = '<' + elementName; | |
321 | int index = line.indexOf(recordElementStart, fromIndex); | |
322 | if (index == -1) { | |
323 | return index; | |
324 | } | |
325 | int nextCharIndex = index + recordElementStart.length(); | |
326 | if (nextCharIndex < line.length()) { | |
327 | char c = line.charAt(nextCharIndex); | |
328 | // Check that the match is not just a substring of another element | |
329 | if (Character.isLetterOrDigit(c)) { | |
330 | return indexOfElement(elementName, line, nextCharIndex); | |
331 | } | |
332 | } | |
333 | return index; | |
334 | } | |
335 | ||
6151d86c PT |
336 | private void readElement(final StringBuffer buffer, final RandomAccessFile raFile) { |
337 | try { | |
338 | int numRead = 0; | |
339 | boolean startTagClosed = false; | |
340 | int i; | |
341 | while ((i = raFile.read()) != -1) { | |
342 | numRead++; | |
eb8ea213 | 343 | final char c = (char) i; |
6151d86c PT |
344 | buffer.append(c); |
345 | if (c == '"') { | |
346 | readQuote(buffer, raFile, '"'); | |
347 | } else if (c == '\'') { | |
348 | readQuote(buffer, raFile, '\''); | |
349 | } else if (c == '<') { | |
350 | readElement(buffer, raFile); | |
351 | } else if (c == '/' && numRead == 1) { | |
352 | break; // found "</" | |
353 | } else if (c == '-' && numRead == 3 && buffer.substring(buffer.length() - 3, buffer.length() - 1).equals("!-")) { //$NON-NLS-1$ | |
354 | readComment(buffer, raFile); // found "<!--" | |
355 | } else if (i == '>') { | |
356 | if (buffer.charAt(buffer.length() - 2) == '/') { | |
357 | break; // found "/>" | |
358 | } else if (startTagClosed) { | |
359 | break; // found "<...>...</...>" | |
360 | } | |
361 | else { | |
362 | startTagClosed = true; // found "<...>" | |
363 | } | |
364 | } | |
365 | } | |
366 | return; | |
367 | } catch (final IOException e) { | |
368 | return; | |
369 | } | |
370 | } | |
371 | ||
372 | private static void readQuote(final StringBuffer buffer, | |
373 | final RandomAccessFile raFile, final char eq) { | |
374 | try { | |
375 | int i; | |
376 | while ((i = raFile.read()) != -1) { | |
eb8ea213 | 377 | final char c = (char) i; |
6151d86c PT |
378 | buffer.append(c); |
379 | if (c == eq) | |
380 | { | |
381 | break; // found matching end-quote | |
382 | } | |
383 | } | |
384 | return; | |
385 | } catch (final IOException e) { | |
386 | return; | |
387 | } | |
388 | } | |
389 | ||
390 | private static void readComment(final StringBuffer buffer, | |
391 | final RandomAccessFile raFile) { | |
392 | try { | |
393 | int numRead = 0; | |
394 | int i; | |
395 | while ((i = raFile.read()) != -1) { | |
396 | numRead++; | |
eb8ea213 | 397 | final char c = (char) i; |
6151d86c PT |
398 | buffer.append(c); |
399 | if (c == '>' && numRead >= 2 && buffer.substring(buffer.length() - 3, buffer.length() - 1).equals("--")) //$NON-NLS-1$ | |
400 | { | |
401 | break; // found "-->" | |
402 | } | |
403 | } | |
404 | return; | |
405 | } catch (final IOException e) { | |
406 | return; | |
407 | } | |
408 | } | |
409 | ||
a0a88f65 AM |
410 | /** |
411 | * Parse an XML element. | |
412 | * | |
413 | * @param parentElement | |
414 | * The parent element | |
415 | * @param buffer | |
416 | * The contents to parse | |
417 | * @return The parsed content | |
418 | */ | |
6151d86c PT |
419 | public static StringBuffer parseElement(final Element parentElement, final StringBuffer buffer) { |
420 | final NodeList nodeList = parentElement.getChildNodes(); | |
421 | String separator = null; | |
422 | for (int i = 0; i < nodeList.getLength(); i++) { | |
423 | final Node node = nodeList.item(i); | |
424 | if (node.getNodeType() == Node.ELEMENT_NODE) { | |
425 | if (separator == null) { | |
426 | separator = " | "; //$NON-NLS-1$ | |
427 | } else { | |
428 | buffer.append(separator); | |
429 | } | |
430 | final Element element = (Element) node; | |
431 | if (!element.hasChildNodes()) { | |
432 | buffer.append(element.getNodeName()); | |
433 | } else if (element.getChildNodes().getLength() == 1 && element.getFirstChild().getNodeType() == Node.TEXT_NODE) { | |
434 | buffer.append(element.getNodeName() + ":" + element.getFirstChild().getNodeValue().trim()); //$NON-NLS-1$ | |
435 | } else { | |
436 | buffer.append(element.getNodeName()); | |
437 | buffer.append(" [ "); //$NON-NLS-1$ | |
438 | parseElement(element, buffer); | |
439 | buffer.append(" ]"); //$NON-NLS-1$ | |
440 | } | |
441 | } else if (node.getNodeType() == Node.TEXT_NODE) { | |
442 | if (node.getNodeValue().trim().length() != 0) { | |
443 | buffer.append(node.getNodeValue().trim()); | |
444 | } | |
445 | } | |
446 | } | |
447 | return buffer; | |
448 | } | |
449 | ||
a0a88f65 AM |
450 | /** |
451 | * Get an input element if it is a valid record input. If not, we will look | |
452 | * into its children for valid inputs. | |
453 | * | |
454 | * @param inputElement | |
455 | * The main element to check for. | |
456 | * @return The record element | |
457 | */ | |
6151d86c PT |
458 | public InputElement getRecordInputElement(final InputElement inputElement) { |
459 | if (inputElement.logEntry) { | |
460 | return inputElement; | |
461 | } else if (inputElement.childElements != null) { | |
462 | for (final InputElement childInputElement : inputElement.childElements) { | |
463 | final InputElement recordInputElement = getRecordInputElement(childInputElement); | |
464 | if (recordInputElement != null) { | |
465 | return recordInputElement; | |
466 | } | |
467 | } | |
468 | } | |
469 | return null; | |
470 | } | |
471 | ||
a0a88f65 AM |
472 | /** |
473 | * Extract a trace event from an XML element. | |
474 | * | |
475 | * @param element | |
476 | * The element | |
477 | * @param inputElement | |
478 | * The input element | |
479 | * @return The extracted event | |
480 | */ | |
6151d86c | 481 | public CustomXmlEvent extractEvent(final Element element, final InputElement inputElement) { |
eb8ea213 | 482 | final CustomXmlEvent event = new CustomXmlEvent(fDefinition, this, TmfTimestamp.ZERO, "", fEventType, ""); //$NON-NLS-1$ //$NON-NLS-2$ |
6151d86c PT |
483 | event.setContent(new CustomEventContent(event, new StringBuffer())); |
484 | parseElement(element, event, inputElement); | |
485 | return event; | |
486 | } | |
487 | ||
488 | private void parseElement(final Element element, final CustomXmlEvent event, final InputElement inputElement) { | |
489 | if (inputElement.inputName != null && !inputElement.inputName.equals(CustomXmlTraceDefinition.TAG_IGNORE)) { | |
490 | event.parseInput(parseElement(element, new StringBuffer()).toString(), inputElement.inputName, inputElement.inputAction, inputElement.inputFormat); | |
491 | } | |
492 | if (inputElement.attributes != null) { | |
493 | for (final InputAttribute attribute : inputElement.attributes) { | |
494 | event.parseInput(element.getAttribute(attribute.attributeName), attribute.inputName, attribute.inputAction, attribute.inputFormat); | |
495 | } | |
496 | } | |
497 | final NodeList childNodes = element.getChildNodes(); | |
498 | if (inputElement.childElements != null) { | |
499 | for (int i = 0; i < childNodes.getLength(); i++) { | |
500 | final Node node = childNodes.item(i); | |
501 | if (node instanceof Element) { | |
502 | for (final InputElement child : inputElement.childElements) { | |
503 | if (node.getNodeName().equals(child.elementName)) { | |
504 | parseElement((Element) node, event, child); | |
505 | break; | |
506 | } | |
507 | } | |
508 | } | |
509 | } | |
510 | } | |
511 | return; | |
512 | } | |
513 | ||
a0a88f65 AM |
514 | /** |
515 | * Retrieve the trace definition. | |
516 | * | |
517 | * @return The trace definition | |
518 | */ | |
6151d86c PT |
519 | public CustomTraceDefinition getDefinition() { |
520 | return fDefinition; | |
521 | } | |
522 | ||
cd43d683 PT |
523 | /** |
524 | * {@inheritDoc} | |
525 | * <p> | |
526 | * The default implementation sets the confidence to 100 if any of the first | |
527 | * 100 lines of the file contains a valid record input element, and 0 | |
528 | * otherwise. | |
529 | */ | |
6151d86c | 530 | @Override |
a94410d9 | 531 | public IStatus validate(IProject project, String path) { |
cd43d683 PT |
532 | File file = new File(path); |
533 | if (!file.exists() || !file.isFile() || !file.canRead()) { | |
534 | return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.CustomTrace_FileNotFound + ": " + path); //$NON-NLS-1$ | |
535 | } | |
536 | try (BufferedRandomAccessFile rafile = new BufferedRandomAccessFile(path, "r")) { //$NON-NLS-1$ | |
537 | int lineCount = 0; | |
cd43d683 PT |
538 | long rawPos = 0; |
539 | String line = rafile.getNextLine(); | |
540 | while ((line != null) && (lineCount++ < MAX_LINES)) { | |
9fa9acbb | 541 | final int idx = indexOfElement(fRecordInputElement.elementName, line, 0); |
cd43d683 PT |
542 | if (idx != -1) { |
543 | rafile.seek(rawPos + idx + 1); // +1 is for the < | |
544 | final StringBuffer elementBuffer = new StringBuffer("<"); //$NON-NLS-1$ | |
545 | readElement(elementBuffer, rafile); | |
546 | final Element element = parseElementBuffer(elementBuffer); | |
547 | if (element != null) { | |
548 | rafile.close(); | |
549 | return new TraceValidationStatus(CONFIDENCE, Activator.PLUGIN_ID); | |
eb8ea213 | 550 | } |
cd43d683 PT |
551 | } |
552 | rawPos = rafile.getFilePointer(); | |
553 | line = rafile.getNextLine(); | |
eb8ea213 | 554 | } |
cd43d683 PT |
555 | } catch (IOException e) { |
556 | return new Status(IStatus.ERROR, Activator.PLUGIN_ID, "IOException validating file: " + path, e); //$NON-NLS-1$ | |
a94410d9 | 557 | } |
cd43d683 | 558 | return new TraceValidationStatus(0, Activator.PLUGIN_ID); |
6151d86c | 559 | } |
032ecd45 MAL |
560 | |
561 | private static int fCheckpointSize = -1; | |
562 | ||
563 | @Override | |
564 | public synchronized int getCheckpointSize() { | |
565 | if (fCheckpointSize == -1) { | |
566 | TmfCheckpoint c = new TmfCheckpoint(TmfTimestamp.ZERO, new TmfLongLocation(0L), 0); | |
567 | ByteBuffer b = ByteBuffer.allocate(ITmfCheckpoint.MAX_SERIALIZE_SIZE); | |
568 | b.clear(); | |
569 | c.serialize(b); | |
570 | fCheckpointSize = b.position(); | |
571 | } | |
572 | ||
573 | return fCheckpointSize; | |
574 | } | |
575 | ||
576 | @Override | |
577 | public ITmfLocation restoreLocation(ByteBuffer bufferIn) { | |
578 | return new TmfLongLocation(bufferIn); | |
579 | } | |
580 | ||
581 | @Override | |
582 | protected ITmfTraceIndexer createIndexer(int interval) { | |
583 | return new TmfBTreeTraceIndexer(this, interval); | |
584 | } | |
6151d86c | 585 | } |