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1 | /******************************************************************************* |
2 | * Copyright (c) 2010 Ericsson | |
4c9f2944 | 3 | * |
be222f56 PT |
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 | |
4c9f2944 | 8 | * |
be222f56 PT |
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.TmfTimestamp; | |
28 | import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException; | |
29 | import org.eclipse.linuxtools.tmf.core.io.BufferedRandomAccessFile; | |
30 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; | |
31 | import org.eclipse.linuxtools.tmf.core.trace.ITmfEventParser; | |
32 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; | |
33 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; | |
34 | import org.eclipse.linuxtools.tmf.core.trace.TmfLocation; | |
35 | import org.eclipse.linuxtools.tmf.core.trace.TmfTrace; | |
36 | ||
37 | public class CustomTxtTrace extends TmfTrace<CustomTxtEvent> implements ITmfEventParser<CustomTxtEvent> { | |
38 | ||
39 | private static final TmfLocation<Long> NULL_LOCATION = new TmfLocation<Long>((Long) null); | |
40 | private static final int DEFAULT_CACHE_SIZE = 100; | |
41 | ||
42 | private final CustomTxtTraceDefinition fDefinition; | |
43 | private final CustomTxtEventType fEventType; | |
44 | private BufferedRandomAccessFile fFile; | |
45 | ||
46 | public CustomTxtTrace(final CustomTxtTraceDefinition definition) { | |
47 | fDefinition = definition; | |
48 | fEventType = new CustomTxtEventType(fDefinition); | |
49 | setCacheSize(DEFAULT_CACHE_SIZE); | |
50 | } | |
51 | ||
52 | public CustomTxtTrace(final IResource resource, final CustomTxtTraceDefinition definition, final String path, final int cacheSize) throws TmfTraceException { | |
53 | this(definition); | |
54 | setCacheSize((cacheSize > 0) ? cacheSize : DEFAULT_CACHE_SIZE); | |
55 | initTrace(resource, path, CustomTxtEvent.class); | |
56 | } | |
57 | ||
58 | @Override | |
59 | public void initTrace(final IResource resource, final String path, final Class<CustomTxtEvent> eventType) throws TmfTraceException { | |
60 | super.initTrace(resource, path, eventType); | |
61 | try { | |
62 | fFile = new BufferedRandomAccessFile(getPath(), "r"); //$NON-NLS-1$ | |
63 | } catch (IOException e) { | |
64 | throw new TmfTraceException(e.getMessage(), e); | |
65 | } | |
66 | indexTrace(false); | |
67 | } | |
68 | ||
69 | @Override | |
70 | public synchronized void dispose() { | |
71 | super.dispose(); | |
72 | if (fFile != null) { | |
73 | try { | |
74 | fFile.close(); | |
75 | } catch (IOException e) { | |
76 | } finally { | |
77 | fFile = null; | |
78 | } | |
79 | } | |
80 | } | |
81 | ||
82 | @Override | |
83 | public synchronized TmfContext seekEvent(final ITmfLocation<?> location) { | |
84 | final CustomTxtTraceContext context = new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
85 | if (NULL_LOCATION.equals(location) || fFile == null) { | |
86 | return context; | |
87 | } | |
88 | try { | |
89 | if (location == null) { | |
90 | fFile.seek(0); | |
91 | } else if (location.getLocation() instanceof Long) { | |
92 | fFile.seek((Long) location.getLocation()); | |
93 | } | |
94 | String line; | |
95 | long rawPos = fFile.getFilePointer(); | |
96 | while ((line = fFile.getNextLine()) != null) { | |
97 | for (final InputLine input : getFirstLines()) { | |
98 | final Matcher matcher = input.getPattern().matcher(line); | |
99 | if (matcher.find()) { | |
100 | context.setLocation(new TmfLocation<Long>(rawPos)); | |
101 | context.firstLineMatcher = matcher; | |
102 | context.firstLine = line; | |
103 | context.nextLineLocation = fFile.getFilePointer(); | |
104 | context.inputLine = input; | |
105 | return context; | |
106 | } | |
107 | } | |
108 | rawPos = fFile.getFilePointer(); | |
109 | } | |
110 | return context; | |
111 | } catch (final FileNotFoundException e) { | |
112 | Activator.getDefault().logError("Error seeking event. File not found: " + getPath(), e); //$NON-NLS-1$ | |
113 | return context; | |
114 | } catch (final IOException e) { | |
115 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
116 | return context; | |
117 | } | |
118 | ||
119 | } | |
120 | ||
121 | @Override | |
122 | public synchronized TmfContext seekEvent(final double ratio) { | |
123 | if (fFile == null) { | |
124 | return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
125 | } | |
126 | try { | |
127 | long pos = (long) (ratio * fFile.length()); | |
128 | while (pos > 0) { | |
129 | fFile.seek(pos - 1); | |
130 | if (fFile.read() == '\n') { | |
131 | break; | |
132 | } | |
133 | pos--; | |
134 | } | |
135 | final ITmfLocation<?> location = new TmfLocation<Long>(pos); | |
136 | final TmfContext context = seekEvent(location); | |
137 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
138 | return context; | |
139 | } catch (final IOException e) { | |
140 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
141 | return new CustomTxtTraceContext(NULL_LOCATION, ITmfContext.UNKNOWN_RANK); | |
142 | } | |
143 | } | |
144 | ||
145 | @Override | |
146 | public synchronized double getLocationRatio(final ITmfLocation<?> location) { | |
147 | if (fFile == null) { | |
148 | return 0; | |
149 | } | |
150 | try { | |
151 | if (location.getLocation() instanceof Long) { | |
152 | return (double) ((Long) location.getLocation()) / fFile.length(); | |
153 | } | |
154 | } catch (final IOException e) { | |
155 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
156 | } | |
157 | return 0; | |
158 | } | |
159 | ||
160 | @Override | |
161 | public ITmfLocation<?> getCurrentLocation() { | |
162 | // TODO Auto-generated method stub | |
163 | return null; | |
164 | } | |
165 | ||
166 | @Override | |
167 | public synchronized CustomTxtEvent parseEvent(final ITmfContext tmfContext) { | |
168 | ITmfContext context = seekEvent(tmfContext.getLocation()); | |
169 | return parse(context); | |
170 | } | |
171 | ||
172 | @Override | |
173 | public synchronized CustomTxtEvent getNext(final ITmfContext context) { | |
4c9f2944 | 174 | final ITmfContext savedContext = new TmfContext(context.getLocation(), context.getRank()); |
be222f56 PT |
175 | final CustomTxtEvent event = parse(context); |
176 | if (event != null) { | |
177 | updateAttributes(savedContext, event.getTimestamp()); | |
178 | context.increaseRank(); | |
179 | } | |
180 | return event; | |
181 | } | |
182 | ||
183 | private synchronized CustomTxtEvent parse(final ITmfContext tmfContext) { | |
184 | if (fFile == null) { | |
185 | return null; | |
186 | } | |
187 | if (!(tmfContext instanceof CustomTxtTraceContext)) { | |
188 | return null; | |
189 | } | |
190 | ||
191 | final CustomTxtTraceContext context = (CustomTxtTraceContext) tmfContext; | |
192 | if (!(context.getLocation().getLocation() instanceof Long) || NULL_LOCATION.equals(context.getLocation())) { | |
193 | return null; | |
194 | } | |
195 | ||
196 | CustomTxtEvent event = parseFirstLine(context); | |
197 | ||
198 | final HashMap<InputLine, Integer> countMap = new HashMap<InputLine, Integer>(); | |
199 | InputLine currentInput = null; | |
200 | if (context.inputLine.childrenInputs != null && context.inputLine.childrenInputs.size() > 0) { | |
201 | currentInput = context.inputLine.childrenInputs.get(0); | |
202 | countMap.put(currentInput, 0); | |
203 | } | |
204 | ||
205 | try { | |
206 | if (fFile.getFilePointer() != context.nextLineLocation) { | |
207 | fFile.seek(context.nextLineLocation); | |
208 | } | |
209 | String line; | |
210 | long rawPos = fFile.getFilePointer(); | |
211 | while ((line = fFile.getNextLine()) != null) { | |
212 | boolean processed = false; | |
213 | if (currentInput == null) { | |
214 | for (final InputLine input : getFirstLines()) { | |
215 | final Matcher matcher = input.getPattern().matcher(line); | |
216 | if (matcher.find()) { | |
217 | context.setLocation(new TmfLocation<Long>(rawPos)); | |
218 | context.firstLineMatcher = matcher; | |
219 | context.firstLine = line; | |
220 | context.nextLineLocation = fFile.getFilePointer(); | |
221 | context.inputLine = input; | |
222 | return event; | |
223 | } | |
224 | } | |
225 | } else { | |
226 | if (countMap.get(currentInput) >= currentInput.getMinCount()) { | |
227 | final List<InputLine> nextInputs = currentInput.getNextInputs(countMap); | |
228 | if (nextInputs.size() == 0 || nextInputs.get(nextInputs.size() - 1).getMinCount() == 0) { | |
229 | for (final InputLine input : getFirstLines()) { | |
230 | final Matcher matcher = input.getPattern().matcher(line); | |
231 | if (matcher.find()) { | |
232 | context.setLocation(new TmfLocation<Long>(rawPos)); | |
233 | context.firstLineMatcher = matcher; | |
234 | context.firstLine = line; | |
235 | context.nextLineLocation = fFile.getFilePointer(); | |
236 | context.inputLine = input; | |
237 | return event; | |
238 | } | |
239 | } | |
240 | } | |
241 | for (final InputLine input : nextInputs) { | |
242 | final Matcher matcher = input.getPattern().matcher(line); | |
243 | if (matcher.find()) { | |
244 | event.processGroups(input, matcher); | |
245 | currentInput = input; | |
246 | if (countMap.get(currentInput) == null) { | |
247 | countMap.put(currentInput, 1); | |
248 | } else { | |
249 | countMap.put(currentInput, countMap.get(currentInput) + 1); | |
250 | } | |
251 | Iterator<InputLine> iter = countMap.keySet().iterator(); | |
252 | while (iter.hasNext()) { | |
253 | final InputLine inputLine = iter.next(); | |
254 | if (inputLine.level > currentInput.level) { | |
255 | iter.remove(); | |
256 | } | |
257 | } | |
258 | if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) { | |
259 | currentInput = currentInput.childrenInputs.get(0); | |
260 | countMap.put(currentInput, 0); | |
261 | } else if (countMap.get(currentInput) >= currentInput.getMaxCount()) { | |
262 | if (currentInput.getNextInputs(countMap).size() > 0) { | |
263 | currentInput = currentInput.getNextInputs(countMap).get(0); | |
264 | if (countMap.get(currentInput) == null) { | |
265 | countMap.put(currentInput, 0); | |
266 | } | |
267 | iter = countMap.keySet().iterator(); | |
268 | while (iter.hasNext()) { | |
269 | final InputLine inputLine = iter.next(); | |
270 | if (inputLine.level > currentInput.level) { | |
271 | iter.remove(); | |
272 | } | |
273 | } | |
274 | } else { | |
275 | currentInput = null; | |
276 | } | |
277 | } | |
278 | processed = true; | |
279 | break; | |
280 | } | |
281 | } | |
282 | } | |
283 | if (! processed) { | |
284 | final Matcher matcher = currentInput.getPattern().matcher(line); | |
285 | if (matcher.find()) { | |
286 | event.processGroups(currentInput, matcher); | |
287 | countMap.put(currentInput, countMap.get(currentInput) + 1); | |
288 | if (currentInput.childrenInputs != null && currentInput.childrenInputs.size() > 0) { | |
289 | currentInput = currentInput.childrenInputs.get(0); | |
290 | countMap.put(currentInput, 0); | |
291 | } else if (countMap.get(currentInput) >= currentInput.getMaxCount()) { | |
292 | if (currentInput.getNextInputs(countMap).size() > 0) { | |
293 | currentInput = currentInput.getNextInputs(countMap).get(0); | |
294 | if (countMap.get(currentInput) == null) { | |
295 | countMap.put(currentInput, 0); | |
296 | } | |
297 | final Iterator<InputLine> iter = countMap.keySet().iterator(); | |
298 | while (iter.hasNext()) { | |
299 | final InputLine inputLine = iter.next(); | |
300 | if (inputLine.level > currentInput.level) { | |
301 | iter.remove(); | |
302 | } | |
303 | } | |
304 | } else { | |
305 | currentInput = null; | |
306 | } | |
307 | } | |
308 | } | |
309 | ((StringBuffer) event.getContent().getValue()).append("\n").append(line); //$NON-NLS-1$ | |
310 | } | |
311 | } | |
312 | rawPos = fFile.getFilePointer(); | |
313 | } | |
314 | } catch (final IOException e) { | |
315 | Activator.getDefault().logError("Error seeking event. File: " + getPath(), e); //$NON-NLS-1$ | |
316 | } | |
317 | for (final Entry<InputLine, Integer> entry : countMap.entrySet()) { | |
318 | if (entry.getValue() < entry.getKey().getMinCount()) { | |
319 | event = null; | |
320 | } | |
321 | } | |
322 | context.setLocation(NULL_LOCATION); | |
323 | return event; | |
324 | } | |
325 | ||
326 | public List<InputLine> getFirstLines() { | |
327 | return fDefinition.inputs; | |
328 | } | |
329 | ||
330 | public CustomTxtEvent parseFirstLine(final CustomTxtTraceContext context) { | |
331 | final CustomTxtEvent event = new CustomTxtEvent(fDefinition, this, TmfTimestamp.ZERO, "", fEventType, ""); //$NON-NLS-1$ //$NON-NLS-2$ | |
332 | event.processGroups(context.inputLine, context.firstLineMatcher); | |
333 | event.setContent(new CustomEventContent(event, new StringBuffer(context.firstLine))); | |
334 | return event; | |
335 | } | |
336 | ||
337 | public CustomTraceDefinition getDefinition() { | |
338 | return fDefinition; | |
339 | } | |
340 | ||
341 | /* (non-Javadoc) | |
342 | * @see org.eclipse.linuxtools.tmf.core.trace.ITmfTrace#validate(org.eclipse.core.resources.IProject, java.lang.String) | |
343 | */ | |
344 | @Override | |
345 | public boolean validate(IProject project, String path) { | |
346 | return fileExists(path); | |
347 | } | |
348 | } |