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