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0df4af5f | 1 | /********************************************************************** |
ed902a2b | 2 | * Copyright (c) 2014, 2015 Ericsson |
0df4af5f JRJ |
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 | * Jonathan Rajotte - Initial support for machine interface lttng 2.6 | |
e5237dc5 | 11 | * Bernd Hufmann - Fix check for live session |
0df4af5f JRJ |
12 | **********************************************************************/ |
13 | ||
9bc60be7 | 14 | package org.eclipse.tracecompass.internal.lttng2.control.ui.views.service; |
0df4af5f | 15 | |
364dcfaf BH |
16 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
17 | ||
0df4af5f JRJ |
18 | import java.io.IOException; |
19 | import java.io.StringReader; | |
6651c1b4 | 20 | import java.math.BigInteger; |
0df4af5f JRJ |
21 | import java.net.URL; |
22 | import java.util.ArrayList; | |
23 | import java.util.List; | |
24 | import java.util.regex.Matcher; | |
25 | ||
26 | import javax.xml.parsers.DocumentBuilder; | |
27 | import javax.xml.parsers.DocumentBuilderFactory; | |
28 | import javax.xml.parsers.ParserConfigurationException; | |
29 | ||
30 | import org.eclipse.core.commands.ExecutionException; | |
31 | import org.eclipse.core.runtime.IProgressMonitor; | |
364dcfaf BH |
32 | import org.eclipse.jdt.annotation.NonNull; |
33 | import org.eclipse.jdt.annotation.Nullable; | |
67f8cadd | 34 | import org.eclipse.osgi.util.NLS; |
9bc60be7 AM |
35 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IBaseEventInfo; |
36 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IChannelInfo; | |
37 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IDomainInfo; | |
38 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IEventInfo; | |
39 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IFieldInfo; | |
40 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IProbeEventInfo; | |
41 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.ISessionInfo; | |
42 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.ISnapshotInfo; | |
43 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.IUstProviderInfo; | |
44 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.LogLevelType; | |
45 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceDomainType; | |
46 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceEnablement; | |
47 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceEventType; | |
48 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceLogLevel; | |
49 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.BaseEventInfo; | |
50 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.BufferType; | |
51 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.ChannelInfo; | |
52 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.DomainInfo; | |
53 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.EventInfo; | |
54 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.FieldInfo; | |
55 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.ProbeEventInfo; | |
56 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.SessionInfo; | |
57 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.SnapshotInfo; | |
58 | import org.eclipse.tracecompass.internal.lttng2.control.core.model.impl.UstProviderInfo; | |
59 | import org.eclipse.tracecompass.internal.lttng2.control.ui.views.handlers.XmlMiValidationErrorHandler; | |
60 | import org.eclipse.tracecompass.internal.lttng2.control.ui.views.messages.Messages; | |
364dcfaf | 61 | import org.eclipse.tracecompass.tmf.remote.core.shell.ICommandInput; |
ec619615 BH |
62 | import org.eclipse.tracecompass.tmf.remote.core.shell.ICommandResult; |
63 | import org.eclipse.tracecompass.tmf.remote.core.shell.ICommandShell; | |
0df4af5f JRJ |
64 | import org.w3c.dom.Document; |
65 | import org.w3c.dom.Node; | |
66 | import org.w3c.dom.NodeList; | |
67 | import org.xml.sax.InputSource; | |
68 | import org.xml.sax.SAXException; | |
69 | ||
70 | /** | |
71 | * Service for sending LTTng trace control commands to remote host via machine | |
72 | * interface mode. | |
73 | * | |
74 | * @author Jonathan Rajotte | |
75 | */ | |
76 | public class LTTngControlServiceMI extends LTTngControlService { | |
77 | ||
78 | // ------------------------------------------------------------------------ | |
79 | // Attributes | |
80 | // ------------------------------------------------------------------------ | |
81 | ||
82 | private final DocumentBuilder fDocumentBuilder; | |
83 | ||
84 | // ------------------------------------------------------------------------ | |
85 | // Constructors | |
86 | // ------------------------------------------------------------------------ | |
87 | ||
88 | /** | |
89 | * Constructor | |
90 | * | |
91 | * @param shell | |
92 | * the command shell implementation to use | |
93 | * @param xsdUrl | |
94 | * the xsd schema file for validation | |
95 | * @throws ExecutionException | |
96 | * if the creation of the Schema and DocumentBuilder objects | |
97 | * fails | |
98 | */ | |
364dcfaf | 99 | public LTTngControlServiceMI(@NonNull ICommandShell shell, @Nullable URL xsdUrl) throws ExecutionException { |
0df4af5f JRJ |
100 | super(shell); |
101 | ||
102 | DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance(); | |
103 | docBuilderFactory.setValidating(false); | |
104 | ||
105 | // TODO: Add xsd validation for machine interface via mi_lttng.xsd from LTTng | |
106 | try { | |
107 | fDocumentBuilder = docBuilderFactory.newDocumentBuilder(); | |
108 | } catch (ParserConfigurationException e) { | |
109 | throw new ExecutionException(Messages.TraceControl_XmlDocumentBuilderError, e); | |
110 | } | |
111 | ||
112 | fDocumentBuilder.setErrorHandler(new XmlMiValidationErrorHandler()); | |
113 | ||
114 | } | |
115 | ||
116 | /** | |
cbc46cc9 | 117 | * Generate a Document object from an list of Strings. |
0df4af5f JRJ |
118 | * |
119 | * @param xmlStrings | |
cbc46cc9 | 120 | * list of strings representing an xml input |
0df4af5f JRJ |
121 | * @return Document generated from strings input |
122 | * @throws ExecutionException | |
123 | * when parsing has failed | |
124 | */ | |
cbc46cc9 | 125 | private Document getDocumentFromStrings(List<String> xmlStrings) throws ExecutionException { |
0df4af5f JRJ |
126 | StringBuilder concatenedString = new StringBuilder(); |
127 | for (String string : xmlStrings) { | |
128 | concatenedString.append(string); | |
129 | } | |
130 | InputSource stream = new InputSource(new StringReader(concatenedString.toString())); | |
131 | ||
132 | Document document; | |
133 | try { | |
134 | document = fDocumentBuilder.parse(stream); | |
135 | } catch (SAXException | IOException e) { | |
136 | throw new ExecutionException(Messages.TraceControl_XmlParsingError, e); | |
137 | } | |
138 | return document; | |
139 | ||
140 | } | |
141 | ||
142 | /** | |
143 | * Parse, populate and set the internal LTTngVersion variable | |
144 | * | |
145 | * @param xmlOutput | |
146 | * the mi xml output of lttng version | |
147 | * @throws ExecutionException | |
148 | * when xml extraction fail | |
149 | */ | |
cbc46cc9 | 150 | public void setVersion(List<String> xmlOutput) throws ExecutionException { |
0df4af5f JRJ |
151 | Document doc = getDocumentFromStrings(xmlOutput); |
152 | NodeList element = doc.getElementsByTagName(MIStrings.VERSION); | |
153 | int major = 0; | |
154 | int minor = 0; | |
155 | int patchLevel = 0; | |
156 | String license = ""; //$NON-NLS-1$ | |
157 | String commit = ""; //$NON-NLS-1$ | |
158 | String name = ""; //$NON-NLS-1$ | |
159 | String description = ""; //$NON-NLS-1$ | |
160 | String url = ""; //$NON-NLS-1$ | |
161 | String fullVersion = ""; //$NON-NLS-1$ | |
162 | if (element.getLength() == 1) { | |
163 | NodeList child = element.item(0).getChildNodes(); | |
164 | // Get basic information | |
165 | for (int i = 0; i < child.getLength(); i++) { | |
166 | Node node = child.item(i); | |
167 | switch (node.getNodeName()) { | |
168 | case MIStrings.VERSION_MAJOR: | |
169 | major = Integer.parseInt(node.getTextContent()); | |
170 | break; | |
171 | case MIStrings.VERSION_MINOR: | |
172 | minor = Integer.parseInt(node.getTextContent()); | |
173 | break; | |
174 | case MIStrings.VERSION_PATCH_LEVEL: | |
175 | patchLevel = Integer.parseInt(node.getTextContent()); | |
176 | break; | |
177 | case MIStrings.VERSION_COMMIT: | |
178 | commit = node.getTextContent(); | |
179 | break; | |
180 | case MIStrings.VERSION_DESCRIPTION: | |
181 | description = node.getTextContent(); | |
182 | break; | |
183 | case MIStrings.VERSION_LICENSE: | |
184 | license = node.getTextContent(); | |
185 | break; | |
186 | case MIStrings.VERSION_NAME: | |
187 | name = node.getTextContent(); | |
188 | break; | |
189 | case MIStrings.VERSION_STR: | |
190 | fullVersion = node.getTextContent(); | |
191 | break; | |
192 | case MIStrings.VERSION_WEB: | |
193 | url = node.getTextContent(); | |
194 | break; | |
195 | default: | |
196 | break; | |
197 | } | |
198 | } | |
199 | setVersion(new LttngVersion(major, minor, patchLevel, license, commit, name, description, url, fullVersion)); | |
200 | } else { | |
201 | throw new ExecutionException(Messages.TraceControl_UnsupportedVersionError); | |
202 | } | |
203 | } | |
204 | ||
205 | @Override | |
cbc46cc9 | 206 | public List<String> getSessionNames(IProgressMonitor monitor) throws ExecutionException { |
364dcfaf | 207 | ICommandInput command = createCommand(LTTngControlServiceConstants.COMMAND_LIST); |
774a7993 | 208 | ICommandResult result = executeCommand(command, monitor); |
0df4af5f JRJ |
209 | |
210 | Document doc = getDocumentFromStrings(result.getOutput()); | |
211 | ||
212 | NodeList elements = doc.getElementsByTagName(MIStrings.NAME); | |
213 | ||
214 | ArrayList<String> retArray = new ArrayList<>(); | |
215 | for (int i = 0; i < elements.getLength(); i++) { | |
216 | Node node = elements.item(i); | |
217 | if (node.getParentNode().getNodeName().equalsIgnoreCase(MIStrings.SESSION)) { | |
218 | retArray.add(node.getTextContent()); | |
219 | } | |
220 | } | |
cbc46cc9 | 221 | return retArray; |
0df4af5f JRJ |
222 | } |
223 | ||
224 | @Override | |
225 | public ISessionInfo getSession(String sessionName, IProgressMonitor monitor) throws ExecutionException { | |
364dcfaf | 226 | ICommandInput command = createCommand(LTTngControlServiceConstants.COMMAND_LIST, sessionName); |
774a7993 | 227 | ICommandResult result = executeCommand(command, monitor); |
0df4af5f JRJ |
228 | |
229 | ISessionInfo sessionInfo = new SessionInfo(sessionName); | |
230 | Document document = getDocumentFromStrings(result.getOutput()); | |
231 | ||
232 | NodeList sessionsNode = document.getElementsByTagName(MIStrings.SESSION); | |
233 | // There should be only one session | |
234 | if (sessionsNode.getLength() != 1) { | |
517c0261 | 235 | throw new ExecutionException(NLS.bind(Messages.TraceControl_MiInvalidNumberOfElementError, MIStrings.SESSION)); |
0df4af5f JRJ |
236 | } |
237 | ||
238 | // Populate session information | |
67f8cadd JRJ |
239 | Node rawSession = sessionsNode.item(0); |
240 | parseSession(sessionInfo, rawSession); | |
241 | ||
242 | // Fetch the snapshot info | |
243 | if (sessionInfo.isSnapshotSession()) { | |
244 | ISnapshotInfo snapshot = getSnapshotInfo(sessionName, monitor); | |
245 | sessionInfo.setSnapshotInfo(snapshot); | |
246 | } | |
247 | ||
248 | return sessionInfo; | |
249 | } | |
250 | ||
251 | /** | |
252 | * @param sessionInfo | |
253 | * @param rawSession | |
254 | * @throws ExecutionException | |
255 | */ | |
256 | private void parseSession(ISessionInfo sessionInfo, Node rawSession) throws ExecutionException { | |
257 | if (!rawSession.getNodeName().equalsIgnoreCase(MIStrings.SESSION)) { | |
258 | throw new ExecutionException(Messages.TraceControl_MiInvalidElementError); | |
259 | } | |
260 | NodeList rawSessionInfos = rawSession.getChildNodes(); | |
0df4af5f JRJ |
261 | for (int i = 0; i < rawSessionInfos.getLength(); i++) { |
262 | Node rawInfo = rawSessionInfos.item(i); | |
263 | switch (rawInfo.getNodeName()) { | |
67f8cadd JRJ |
264 | case MIStrings.NAME: |
265 | sessionInfo.setName(rawInfo.getTextContent()); | |
266 | break; | |
0df4af5f JRJ |
267 | case MIStrings.PATH: |
268 | sessionInfo.setSessionPath(rawInfo.getTextContent()); | |
269 | break; | |
270 | case MIStrings.ENABLED: | |
271 | sessionInfo.setSessionState(rawInfo.getTextContent()); | |
272 | break; | |
273 | case MIStrings.SNAPSHOT_MODE: | |
274 | if (rawInfo.getTextContent().equals(LTTngControlServiceConstants.TRUE_NUMERICAL)) { | |
275 | // real name will be set later | |
276 | ISnapshotInfo snapshotInfo = new SnapshotInfo(""); //$NON-NLS-1$ | |
277 | sessionInfo.setSnapshotInfo(snapshotInfo); | |
278 | } | |
279 | break; | |
280 | case MIStrings.LIVE_TIMER_INTERVAL: | |
ae02b8eb | 281 | long liveDelay = Long.parseLong(rawInfo.getTextContent()); |
e5237dc5 | 282 | if ((liveDelay > 0 && (liveDelay <= LTTngControlServiceConstants.MAX_LIVE_TIMER_INTERVAL))) { |
ae02b8eb MAL |
283 | sessionInfo.setLive(true); |
284 | sessionInfo.setLiveUrl(SessionInfo.DEFAULT_LIVE_NETWORK_URL); | |
285 | sessionInfo.setLivePort(SessionInfo.DEFAULT_LIVE_PORT); | |
286 | sessionInfo.setLiveDelay(liveDelay); | |
287 | } | |
0df4af5f JRJ |
288 | break; |
289 | case MIStrings.DOMAINS: | |
290 | // Extract the domains node | |
291 | NodeList rawDomains = rawInfo.getChildNodes(); | |
292 | IDomainInfo domain = null; | |
293 | for (int j = 0; j < rawDomains.getLength(); j++) { | |
294 | if (rawDomains.item(j).getNodeName().equalsIgnoreCase(MIStrings.DOMAIN)) { | |
295 | domain = parseDomain(rawDomains.item(j)); | |
296 | sessionInfo.addDomain(domain); | |
297 | } | |
298 | } | |
299 | break; | |
300 | default: | |
301 | break; | |
302 | } | |
303 | } | |
304 | ||
305 | if (!sessionInfo.isSnapshotSession()) { | |
306 | Matcher matcher = LTTngControlServiceConstants.TRACE_NETWORK_PATTERN.matcher(sessionInfo.getSessionPath()); | |
307 | if (matcher.matches()) { | |
308 | sessionInfo.setStreamedTrace(true); | |
309 | } | |
310 | } | |
0df4af5f JRJ |
311 | } |
312 | ||
313 | /** | |
f4401569 JRJ |
314 | * Parse a raw domain XML node to a IDomainInfo object |
315 | * | |
316 | * @param rawDomain | |
0df4af5f | 317 | * a domain xml node |
f4401569 JRJ |
318 | * @return a populated {@link DomainInfo} object |
319 | * @throws ExecutionException | |
320 | * when missing required xml element (type) | |
0df4af5f | 321 | */ |
f4401569 JRJ |
322 | protected IDomainInfo parseDomain(Node rawDomain) throws ExecutionException { |
323 | IDomainInfo domain = null; | |
324 | // Get the type | |
325 | Node rawType = getFirstOf(rawDomain.getChildNodes(), MIStrings.TYPE); | |
326 | if (rawType == null) { | |
327 | throw new ExecutionException(Messages.TraceControl_MiMissingRequiredError); | |
328 | } | |
329 | String rawTypeString = rawType.getTextContent().toLowerCase(); | |
330 | TraceDomainType domainType = TraceDomainType.valueOfString(rawTypeString); | |
331 | switch (domainType) { | |
332 | case KERNEL: | |
333 | domain = new DomainInfo(Messages.TraceControl_KernelProviderDisplayName); | |
334 | domain.setIsKernel(true); | |
335 | break; | |
336 | case UST: | |
337 | domain = new DomainInfo(Messages.TraceControl_UstGlobalDomainDisplayName); | |
338 | domain.setIsKernel(false); | |
339 | break; | |
340 | case JUL: | |
341 | /** | |
342 | * TODO: Support for JUL JUL substructure and semantic is not the | |
343 | * same as a regular UST or Kernel Domain There is no channel under | |
344 | * JUL domain only events. The channel is activated in UST Channel | |
345 | */ | |
346 | domain = new DomainInfo(Messages.TraceControl_JULDomainDisplayName); | |
347 | domain.setIsKernel(false); | |
348 | break; | |
349 | case UNKNOWN: | |
350 | domain = new DomainInfo(Messages.TraceControl_UnknownDomainDisplayName); | |
351 | domain.setIsKernel(false); | |
352 | break; | |
353 | default: | |
354 | throw new ExecutionException(Messages.TraceControl_MiInvalidElementError); | |
355 | } | |
356 | ||
357 | NodeList rawInfos = rawDomain.getChildNodes(); | |
358 | for (int i = 0; i < rawInfos.getLength(); i++) { | |
359 | Node rawInfo = rawInfos.item(i); | |
360 | switch (rawInfo.getNodeName()) { | |
361 | case MIStrings.BUFFER_TYPE: | |
362 | BufferType bufferType = BufferType.valueOfString(rawInfo.getTextContent()); | |
363 | domain.setBufferType(bufferType); | |
364 | break; | |
365 | case MIStrings.CHANNELS: | |
366 | ArrayList<IChannelInfo> channels = new ArrayList<>(); | |
367 | parseChannels(rawInfo.getChildNodes(), channels); | |
368 | if (channels.size() > 0) { | |
369 | domain.setChannels(channels); | |
370 | } | |
371 | break; | |
372 | default: | |
373 | break; | |
374 | } | |
375 | } | |
376 | ||
377 | return domain; | |
378 | } | |
379 | ||
380 | /** | |
381 | * Parse a list of raw channel XML node into an ArrayList of IChannelInfo | |
382 | * | |
383 | * @param rawChannes | |
384 | * List of raw channel XML node | |
385 | * @param channels | |
386 | * the parsed channels list | |
387 | * @throws ExecutionException | |
388 | * when missing required xml element (type) | |
389 | */ | |
390 | private static void parseChannels(NodeList rawChannels, ArrayList<IChannelInfo> channels) throws ExecutionException { | |
391 | IChannelInfo channel = null; | |
392 | for (int i = 0; i < rawChannels.getLength(); i++) { | |
393 | Node rawChannel = rawChannels.item(i); | |
394 | if (rawChannel.getNodeName().equalsIgnoreCase(MIStrings.CHANNEL)) { | |
395 | channel = new ChannelInfo(""); //$NON-NLS-1$ | |
396 | ||
397 | // Populate the channel | |
398 | NodeList rawInfos = rawChannel.getChildNodes(); | |
399 | Node rawInfo = null; | |
400 | for (int j = 0; j < rawInfos.getLength(); j++) { | |
401 | rawInfo = rawInfos.item(j); | |
402 | switch (rawInfo.getNodeName()) { | |
403 | case MIStrings.NAME: | |
404 | channel.setName(rawInfo.getTextContent()); | |
405 | break; | |
406 | case MIStrings.ENABLED: | |
407 | channel.setState(TraceEnablement.valueOfString(rawInfo.getTextContent())); | |
408 | break; | |
409 | case MIStrings.EVENTS: | |
410 | List<IEventInfo> events = new ArrayList<>(); | |
411 | getEventInfo(rawInfo.getChildNodes(), events); | |
412 | channel.setEvents(events); | |
413 | break; | |
414 | case MIStrings.ATTRIBUTES: | |
415 | NodeList rawAttributes = rawInfo.getChildNodes(); | |
416 | for (int k = 0; k < rawAttributes.getLength(); k++) { | |
417 | Node attribute = rawAttributes.item(k); | |
418 | switch (attribute.getNodeName()) { | |
419 | case MIStrings.OVERWRITE_MODE: | |
420 | channel.setOverwriteMode(!LTTngControlServiceConstants.OVERWRITE_MODE_ATTRIBUTE_FALSE_MI.equalsIgnoreCase(attribute.getTextContent())); | |
421 | break; | |
422 | case MIStrings.SUBBUF_SIZE: | |
423 | channel.setSubBufferSize(Long.valueOf(attribute.getTextContent())); | |
424 | break; | |
425 | case MIStrings.NUM_SUBBUF: | |
426 | channel.setNumberOfSubBuffers(Integer.valueOf(attribute.getTextContent())); | |
427 | break; | |
428 | case MIStrings.SWITCH_TIMER_INTERVAL: | |
429 | channel.setSwitchTimer(Long.valueOf(attribute.getTextContent())); | |
430 | break; | |
431 | case MIStrings.READ_TIMER_INTERVAL: | |
432 | channel.setReadTimer(Long.valueOf(attribute.getTextContent())); | |
433 | break; | |
434 | case MIStrings.OUTPUT_TYPE: | |
435 | channel.setOutputType(attribute.getTextContent()); | |
436 | break; | |
437 | case MIStrings.TRACEFILE_SIZE: | |
438 | channel.setMaxSizeTraceFiles(Integer.parseInt(attribute.getTextContent())); | |
439 | break; | |
440 | case MIStrings.TRACEFILE_COUNT: | |
441 | channel.setMaxNumberTraceFiles(Integer.parseInt(attribute.getTextContent())); | |
442 | break; | |
443 | case MIStrings.LIVE_TIMER_INTERVAL: | |
444 | // TODO: currently not supported by tmf | |
445 | break; | |
446 | default: | |
447 | break; | |
448 | } | |
449 | } | |
450 | break; | |
451 | default: | |
452 | break; | |
453 | } | |
454 | } | |
455 | channels.add(channel); | |
456 | } | |
457 | } | |
458 | ||
0df4af5f JRJ |
459 | } |
460 | ||
461 | @Override | |
462 | public ISnapshotInfo getSnapshotInfo(String sessionName, IProgressMonitor monitor) throws ExecutionException { | |
4f9e6a03 JRJ |
463 | // TODO A session can have multiple snapshot output. This need to be |
464 | // supported in the future. | |
465 | // Currently the SessionInfo object does not support multiple snashot | |
466 | // output. | |
467 | // For now only keep the last one. | |
364dcfaf | 468 | ICommandInput command = createCommand(LTTngControlServiceConstants.COMMAND_SNAPSHOT, LTTngControlServiceConstants.COMMAND_LIST_SNAPSHOT_OUTPUT, LTTngControlServiceConstants.OPTION_SESSION, sessionName); |
774a7993 | 469 | ICommandResult result = executeCommand(command, monitor); |
4f9e6a03 JRJ |
470 | Document doc = getDocumentFromStrings(result.getOutput()); |
471 | NodeList rawSnapshotsOutputs = doc.getElementsByTagName(MIStrings.SNAPSHOT_OUTPUTS); | |
472 | ||
473 | ISnapshotInfo snapshotInfo = new SnapshotInfo(""); //$NON-NLS-1$ | |
474 | ||
475 | // TODO: tmf does not have a notion of a ctrl url. | |
476 | for (int i = 0; i < rawSnapshotsOutputs.getLength(); i++) { | |
477 | NodeList rawSnapshotOutput = rawSnapshotsOutputs.item(i).getChildNodes(); | |
478 | for (int j = 0; j < rawSnapshotOutput.getLength(); j++) { | |
479 | Node rawInfo = rawSnapshotOutput.item(j); | |
480 | switch (rawInfo.getNodeName()) { | |
481 | case MIStrings.ID: | |
482 | snapshotInfo.setId(Integer.parseInt(rawInfo.getTextContent())); | |
483 | break; | |
484 | case MIStrings.NAME: | |
485 | snapshotInfo.setName(rawInfo.getTextContent()); | |
486 | break; | |
487 | case MIStrings.SNAPSHOT_CTRL_URL: | |
488 | // The use of the ctrl_url for the snapshot path is to assure | |
489 | // basic support. Refactoring is necessary in lttng and | |
490 | // tmf side. | |
491 | // See http://bugs.lttng.org/issues/828 (+comment) | |
492 | snapshotInfo.setSnapshotPath(rawInfo.getTextContent()); | |
493 | break; | |
494 | default: | |
495 | break; | |
496 | } | |
497 | } | |
498 | } | |
499 | ||
500 | // Check if the snapshot output is Streamed | |
501 | Matcher matcher2 = LTTngControlServiceConstants.TRACE_NETWORK_PATTERN.matcher(snapshotInfo.getSnapshotPath()); | |
502 | if (matcher2.matches()) { | |
503 | snapshotInfo.setStreamedSnapshot(true); | |
504 | } | |
505 | ||
506 | return snapshotInfo; | |
0df4af5f JRJ |
507 | } |
508 | ||
509 | @Override | |
510 | public List<IBaseEventInfo> getKernelProvider(IProgressMonitor monitor) throws ExecutionException { | |
364dcfaf | 511 | ICommandInput command = createCommand(LTTngControlServiceConstants.COMMAND_LIST, LTTngControlServiceConstants.OPTION_KERNEL); |
774a7993 | 512 | ICommandResult result = executeCommand(command, monitor, false); |
0df4af5f JRJ |
513 | List<IBaseEventInfo> events = new ArrayList<>(); |
514 | ||
13729cbc | 515 | if (isError(result)) { |
517c0261 JRJ |
516 | // Ignore the following 2 cases: |
517 | // Spawning a session daemon | |
518 | // Error: Unable to list kernel events | |
519 | // or: | |
520 | // Error: Unable to list kernel events | |
521 | if (ignoredPattern(result.getErrorOutput(), LTTngControlServiceConstants.LIST_KERNEL_NO_KERNEL_PROVIDER_PATTERN)) { | |
522 | return events; | |
523 | } | |
364dcfaf | 524 | throw new ExecutionException(Messages.TraceControl_CommandError + command.toString()); |
0df4af5f JRJ |
525 | } |
526 | ||
527 | Document document = getDocumentFromStrings(result.getOutput()); | |
528 | NodeList rawEvents = document.getElementsByTagName(MIStrings.EVENT); | |
f4401569 | 529 | getBaseEventInfo(rawEvents, events); |
0df4af5f JRJ |
530 | return events; |
531 | } | |
532 | ||
533 | @Override | |
534 | public List<IUstProviderInfo> getUstProvider(IProgressMonitor monitor) throws ExecutionException { | |
364dcfaf | 535 | ICommandInput command = createCommand(LTTngControlServiceConstants.COMMAND_LIST, LTTngControlServiceConstants.OPTION_UST); |
0df4af5f | 536 | // Get the field to |
774a7993 | 537 | command.add(LTTngControlServiceConstants.OPTION_FIELDS); |
0df4af5f JRJ |
538 | |
539 | // Execute | |
774a7993 | 540 | ICommandResult result = executeCommand(command, monitor, false); |
0df4af5f JRJ |
541 | List<IUstProviderInfo> allProviders = new ArrayList<>(); |
542 | ||
13729cbc | 543 | if (isError(result)) { |
517c0261 JRJ |
544 | // Ignore the following 2 cases: |
545 | // Spawning a session daemon | |
546 | // Error: Unable to list UST events: Listing UST events failed | |
547 | // or: | |
548 | // Error: Unable to list UST events: Listing UST events failed | |
549 | if (ignoredPattern(result.getErrorOutput(), LTTngControlServiceConstants.LIST_UST_NO_UST_PROVIDER_PATTERN)) { | |
550 | return allProviders; | |
551 | } | |
364dcfaf | 552 | throw new ExecutionException(Messages.TraceControl_CommandError + command.toString()); |
0df4af5f JRJ |
553 | } |
554 | ||
555 | Document document = getDocumentFromStrings(result.getOutput()); | |
556 | NodeList rawProviders = document.getElementsByTagName(MIStrings.PID); | |
557 | ||
558 | IUstProviderInfo providerInfo = null; | |
559 | ||
560 | for (int i = 0; i < rawProviders.getLength(); i++) { | |
561 | Node provider = rawProviders.item(i); | |
562 | Node name = getFirstOf(provider.getChildNodes(), MIStrings.NAME); | |
563 | if (name == null) { | |
564 | throw new ExecutionException(Messages.TraceControl_MiInvalidProviderError); | |
565 | } | |
566 | providerInfo = new UstProviderInfo(name.getTextContent()); | |
567 | ||
568 | // Populate provider | |
569 | NodeList infos = provider.getChildNodes(); | |
570 | for (int j = 0; j < infos.getLength(); j++) { | |
571 | Node info = infos.item(j); | |
572 | switch (info.getNodeName()) { | |
573 | case MIStrings.PID_ID: | |
574 | providerInfo.setPid(Integer.parseInt(info.getTextContent())); | |
575 | break; | |
576 | case MIStrings.EVENTS: | |
577 | List<IBaseEventInfo> events = new ArrayList<>(); | |
578 | NodeList rawEvents = info.getChildNodes(); | |
f4401569 | 579 | getBaseEventInfo(rawEvents, events); |
0df4af5f JRJ |
580 | providerInfo.setEvents(events); |
581 | break; | |
582 | default: | |
583 | break; | |
584 | } | |
585 | } | |
586 | allProviders.add(providerInfo); | |
587 | } | |
588 | ||
589 | return allProviders; | |
590 | } | |
591 | ||
592 | @Override | |
593 | public ISessionInfo createSession(ISessionInfo sessionInfo, IProgressMonitor monitor) throws ExecutionException { | |
67f8cadd JRJ |
594 | if (sessionInfo.isStreamedTrace()) { |
595 | return createStreamedSession(sessionInfo, monitor); | |
596 | } | |
597 | ||
364dcfaf | 598 | ICommandInput command = prepareSessionCreationCommand(sessionInfo); |
774a7993 | 599 | ICommandResult result = executeCommand(command, monitor); |
67f8cadd JRJ |
600 | |
601 | Document document = getDocumentFromStrings(result.getOutput()); | |
602 | NodeList sessions = document.getElementsByTagName(MIStrings.SESSION); | |
603 | ||
604 | // Number of session should be equal to 1 | |
605 | if (sessions.getLength() != 1) { | |
606 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command + "\n" //$NON-NLS-1$//$NON-NLS-2$ | |
607 | + NLS.bind(Messages.TraceControl_UnexpectedNumberOfElementError, MIStrings.SESSION) + " " + sessions.getLength()); //$NON-NLS-1$ | |
608 | } | |
609 | ||
610 | // Fetch a session from output | |
611 | ISessionInfo outputSession = new SessionInfo(""); //$NON-NLS-1$ | |
612 | parseSession(outputSession, sessions.item(0)); | |
613 | ||
614 | // Verify session name | |
615 | if ((outputSession.getName().equals("")) || (!"".equals(sessionInfo.getName()) && !outputSession.getName().equals(sessionInfo.getName()))) { //$NON-NLS-1$ //$NON-NLS-2$ | |
616 | // Unexpected name returned | |
617 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command + "\n" + //$NON-NLS-1$ //$NON-NLS-2$ | |
618 | Messages.TraceControl_UnexpectedNameError + ": " + outputSession.getName()); //$NON-NLS-1$ | |
619 | } | |
620 | ||
621 | // Verify session path | |
622 | if (!sessionInfo.isSnapshotSession() && | |
623 | ((outputSession.getSessionPath() == null) || ((sessionInfo.getSessionPath() != null) && (!outputSession.getSessionPath().contains(sessionInfo.getSessionPath()))))) { | |
624 | // Unexpected path | |
625 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command + "\n" + //$NON-NLS-1$ //$NON-NLS-2$ | |
626 | Messages.TraceControl_UnexpectedPathError + ": " + outputSession.getName()); //$NON-NLS-1$ | |
627 | } | |
628 | ||
629 | if (sessionInfo.isSnapshotSession()) { | |
630 | // Make it a snapshot session - content of snapshot info need to | |
631 | // set afterwards using getSession() or getSnapshotInfo() | |
632 | outputSession.setSnapshotInfo(new SnapshotInfo("")); //$NON-NLS-1$ | |
633 | } | |
634 | ||
635 | return outputSession; | |
636 | } | |
637 | ||
364dcfaf | 638 | private @NonNull ISessionInfo createStreamedSession(ISessionInfo sessionInfo, IProgressMonitor monitor) throws ExecutionException { |
67f8cadd | 639 | |
364dcfaf | 640 | ICommandInput command = prepareStreamedSessionCreationCommand(sessionInfo); |
67f8cadd | 641 | |
774a7993 | 642 | ICommandResult result = executeCommand(command, monitor); |
67f8cadd JRJ |
643 | |
644 | Document document = getDocumentFromStrings(result.getOutput()); | |
645 | NodeList sessions = document.getElementsByTagName(MIStrings.SESSION); | |
646 | ||
647 | // Number of session should be equal to 1 | |
648 | if (sessions.getLength() != 1) { | |
649 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command + "\n" //$NON-NLS-1$//$NON-NLS-2$ | |
650 | + NLS.bind(Messages.TraceControl_UnexpectedNumberOfElementError, MIStrings.SESSION) + " " + sessions.getLength()); //$NON-NLS-1$ | |
651 | } | |
652 | ||
653 | // Fetch a session from output | |
654 | ISessionInfo outputSession = new SessionInfo(""); //$NON-NLS-1$ | |
655 | parseSession(outputSession, sessions.item(0)); | |
656 | ||
657 | // Verify session name | |
658 | if ((outputSession.getName().equals("")) || (!"".equals(sessionInfo.getName()) && !outputSession.getName().equals(sessionInfo.getName()))) { //$NON-NLS-1$ //$NON-NLS-2$ | |
659 | // Unexpected name returned | |
660 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command + "\n" + //$NON-NLS-1$ //$NON-NLS-2$ | |
661 | Messages.TraceControl_UnexpectedNameError + ": " + outputSession.getName()); //$NON-NLS-1$ | |
662 | } | |
663 | ||
664 | sessionInfo.setName(outputSession.getName()); | |
665 | sessionInfo.setStreamedTrace(true); | |
666 | ||
667 | // Verify session path | |
668 | if (sessionInfo.getNetworkUrl() != null) { | |
669 | if (!sessionInfo.isSnapshotSession() && (outputSession.getSessionPath() == null)) { | |
670 | // Unexpected path | |
671 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command + "\n" + //$NON-NLS-1$ //$NON-NLS-2$ | |
672 | Messages.TraceControl_UnexpectedPathError + ": " + outputSession.getName()); //$NON-NLS-1$ | |
673 | } | |
674 | ||
675 | if (sessionInfo.isSnapshotSession()) { | |
676 | sessionInfo.setStreamedTrace(false); | |
677 | } else { | |
678 | sessionInfo.setSessionPath(outputSession.getSessionPath()); | |
679 | // Check file protocol | |
680 | Matcher matcher = LTTngControlServiceConstants.TRACE_FILE_PROTOCOL_PATTERN.matcher(outputSession.getSessionPath()); | |
681 | if (matcher.matches()) { | |
682 | sessionInfo.setStreamedTrace(false); | |
683 | } | |
684 | } | |
685 | } | |
686 | ||
687 | // When using controlUrl and dataUrl the full session path is not known | |
688 | // yet | |
689 | // and will be set later on when listing the session | |
690 | return sessionInfo; | |
0df4af5f JRJ |
691 | } |
692 | ||
693 | @Override | |
694 | public void destroySession(String sessionName, IProgressMonitor monitor) throws ExecutionException { | |
364dcfaf | 695 | ICommandInput command = createCommand(LTTngControlServiceConstants.COMMAND_DESTROY_SESSION, sessionName); |
0df4af5f | 696 | |
774a7993 | 697 | ICommandResult result = executeCommand(command, monitor, false); |
cbc46cc9 | 698 | List<String> errorOutput = result.getErrorOutput(); |
0df4af5f | 699 | |
13729cbc | 700 | if (isError(result)) { |
517c0261 JRJ |
701 | // Don't treat this as an error |
702 | if (ignoredPattern(errorOutput, LTTngControlServiceConstants.SESSION_NOT_FOUND_ERROR_PATTERN)) { | |
703 | return; | |
0df4af5f | 704 | |
517c0261 | 705 | } |
364dcfaf | 706 | throw new ExecutionException(Messages.TraceControl_CommandError + " " + command.toString() + "\n" + result.toString()); //$NON-NLS-1$ //$NON-NLS-2$ |
517c0261 JRJ |
707 | } |
708 | ||
709 | // Check for action effect | |
710 | Document doc = getDocumentFromStrings(result.getOutput()); | |
711 | NodeList sessions = doc.getElementsByTagName(MIStrings.SESSION); | |
712 | if (sessions.getLength() != 1) { | |
713 | throw new ExecutionException(NLS.bind(Messages.TraceControl_MiInvalidNumberOfElementError, MIStrings.SESSION)); | |
714 | } | |
0df4af5f | 715 | |
517c0261 JRJ |
716 | Node rawSessionName = getFirstOf(sessions.item(0).getChildNodes(), MIStrings.NAME); |
717 | if (rawSessionName == null) { | |
718 | throw new ExecutionException(Messages.TraceControl_MiMissingRequiredError); | |
719 | } | |
720 | ||
721 | // Validity check | |
722 | if (!rawSessionName.getTextContent().equals(sessionName)) { | |
723 | throw new ExecutionException(NLS.bind(Messages.TraceControl_UnexpectedValueError, rawSessionName.getTextContent(), sessionName)); | |
724 | } | |
0df4af5f JRJ |
725 | } |
726 | ||
0df4af5f | 727 | @Override |
364dcfaf BH |
728 | protected ICommandInput createCommand(String... strings) { |
729 | ICommandInput command = getCommandShell().createCommand(); | |
774a7993 | 730 | command.add(LTTngControlServiceConstants.CONTROL_COMMAND); |
11b78e10 | 731 | List<String> groupOption = getTracingGroupOption(); |
774a7993 | 732 | if (!groupOption.isEmpty()) { |
11b78e10 | 733 | command.addAll(groupOption); |
774a7993 | 734 | } |
11b78e10 BH |
735 | command.add(LTTngControlServiceConstants.CONTROL_COMMAND_MI_OPTION); |
736 | command.add(LTTngControlServiceConstants.CONTROL_COMMAND_MI_XML); | |
0df4af5f | 737 | for (String string : strings) { |
364dcfaf | 738 | command.add(checkNotNull(string)); |
0df4af5f JRJ |
739 | } |
740 | return command; | |
741 | } | |
742 | ||
743 | /** | |
f4401569 JRJ |
744 | * @param xmlBaseEvents |
745 | * a Node list of base xml event element | |
0df4af5f JRJ |
746 | * @param events |
747 | * list of event generated by the parsing of the xml event | |
748 | * element | |
749 | * @throws ExecutionException | |
750 | * when a raw event is not a complete/valid xml event | |
751 | */ | |
f4401569 | 752 | private static void getBaseEventInfo(NodeList xmlBaseEvents, List<IBaseEventInfo> events) throws ExecutionException { |
0df4af5f | 753 | IBaseEventInfo eventInfo = null; |
f4401569 JRJ |
754 | for (int i = 0; i < xmlBaseEvents.getLength(); i++) { |
755 | NodeList rawInfos = xmlBaseEvents.item(i).getChildNodes(); | |
0df4af5f | 756 | // Search for name |
f4401569 | 757 | if (xmlBaseEvents.item(i).getNodeName().equalsIgnoreCase(MIStrings.EVENT)) { |
0df4af5f JRJ |
758 | Node rawName = getFirstOf(rawInfos, MIStrings.NAME); |
759 | if (rawName == null) { | |
760 | throw new ExecutionException(Messages.TraceControl_MiMissingRequiredError); | |
761 | } | |
762 | eventInfo = new BaseEventInfo(rawName.getTextContent()); | |
763 | ||
764 | // Populate the event | |
765 | for (int j = 0; j < rawInfos.getLength(); j++) { | |
766 | Node infoNode = rawInfos.item(j); | |
767 | switch (infoNode.getNodeName()) { | |
768 | case MIStrings.TYPE: | |
769 | eventInfo.setEventType(infoNode.getTextContent()); | |
770 | break; | |
771 | case MIStrings.LOGLEVEL: | |
772 | eventInfo.setLogLevel(infoNode.getTextContent()); | |
773 | break; | |
774 | case MIStrings.EVENT_FIELDS: | |
775 | List<IFieldInfo> fields = new ArrayList<>(); | |
776 | getFieldInfo(infoNode.getChildNodes(), fields); | |
777 | eventInfo.setFields(fields); | |
778 | break; | |
779 | default: | |
780 | break; | |
781 | } | |
782 | } | |
783 | events.add(eventInfo); | |
784 | } | |
785 | } | |
786 | } | |
787 | ||
f4401569 JRJ |
788 | /** |
789 | * @param xmlBaseEvents | |
790 | * a Node list of xml event element linked to a session | |
791 | * @param events | |
792 | * list of event generated by the parsing of the xml event | |
793 | * element | |
794 | * @throws ExecutionException | |
795 | * when a raw event is not a complete/valid xml event | |
796 | */ | |
797 | static void getEventInfo(NodeList xmlEvents, List<IEventInfo> events) throws ExecutionException { | |
798 | IEventInfo eventInfo = null; | |
799 | for (int i = 0; i < xmlEvents.getLength(); i++) { | |
800 | NodeList rawInfos = xmlEvents.item(i).getChildNodes(); | |
801 | // Search for name | |
802 | if (xmlEvents.item(i).getNodeName().equalsIgnoreCase(MIStrings.EVENT)) { | |
803 | Node rawName = getFirstOf(rawInfos, MIStrings.NAME); | |
804 | if (rawName == null) { | |
805 | throw new ExecutionException(Messages.TraceControl_MiMissingRequiredError); | |
806 | } | |
807 | ||
808 | eventInfo = new EventInfo(rawName.getTextContent()); | |
809 | ||
810 | // Basic information | |
811 | for (int j = 0; j < rawInfos.getLength(); j++) { | |
812 | Node infoNode = rawInfos.item(j); | |
813 | switch (infoNode.getNodeName()) { | |
814 | case MIStrings.TYPE: | |
815 | eventInfo.setEventType(infoNode.getTextContent()); | |
816 | break; | |
817 | case MIStrings.LOGLEVEL_TYPE: | |
818 | eventInfo.setLogLevelType(LogLevelType.valueOfString(infoNode.getTextContent())); | |
819 | break; | |
820 | case MIStrings.LOGLEVEL: | |
821 | eventInfo.setLogLevel(TraceLogLevel.valueOfString(infoNode.getTextContent())); | |
822 | break; | |
823 | case MIStrings.ENABLED: | |
824 | eventInfo.setState(TraceEnablement.valueOfString(infoNode.getTextContent())); | |
825 | break; | |
826 | case MIStrings.FILTER: | |
827 | // TODO | |
828 | // See bug 334 http://bugs.lttng.org/issues/334 from | |
829 | // LTTng | |
1ed5ac2e | 830 | // For now we emulate the non-mi behavior and simply put |
f4401569 JRJ |
831 | // "with filter" |
832 | eventInfo.setFilterExpression("with filter"); //$NON-NLS-1$ | |
833 | break; | |
834 | case MIStrings.EXCLUSION: | |
1ed5ac2e | 835 | // TODO: Currently not supported by tmf |
f4401569 JRJ |
836 | // ExclusionS element is ignored |
837 | break; | |
838 | default: | |
839 | break; | |
840 | } | |
841 | } | |
842 | ||
843 | boolean isProbeFunction = (eventInfo.getEventType().equals(TraceEventType.PROBE)) || (eventInfo.getEventType().equals(TraceEventType.FUNCTION)); | |
844 | if (isProbeFunction) { | |
845 | IProbeEventInfo probeEvent = new ProbeEventInfo(eventInfo); | |
846 | eventInfo = probeEvent; | |
f4401569 JRJ |
847 | |
848 | Node rawDataNode = null; | |
849 | switch (probeEvent.getEventType()) { | |
f4401569 | 850 | case FUNCTION: |
6651c1b4 JRJ |
851 | case PROBE: { |
852 | // get attributes | |
853 | Node rawAttributes = getFirstOf(rawInfos, MIStrings.ATTRIBUTES); | |
854 | if (rawAttributes == null) { | |
855 | throw new ExecutionException(Messages.TraceControl_MiMissingRequiredError); | |
856 | } | |
857 | rawDataNode = getFirstOf(rawAttributes.getChildNodes(), MIStrings.PROBE_ATTRIBUTES); | |
f4401569 | 858 | break; |
6651c1b4 | 859 | } |
f4401569 JRJ |
860 | case SYSCALL: |
861 | case TRACEPOINT: | |
862 | case UNKNOWN: | |
863 | default: | |
864 | throw new ExecutionException(Messages.TraceControl_MiInvalidElementError); | |
865 | } | |
866 | ||
867 | if (rawDataNode == null) { | |
868 | throw new ExecutionException(Messages.TraceControl_MiInvalidElementError); | |
869 | } | |
870 | ||
871 | // Extract info | |
872 | NodeList rawDatas = rawDataNode.getChildNodes(); | |
873 | for (int j = 0; j < rawDatas.getLength(); j++) { | |
874 | Node rawData = rawDatas.item(j); | |
875 | switch (rawData.getNodeName()) { | |
876 | case MIStrings.SYMBOL_NAME: | |
877 | probeEvent.setSymbol(rawData.getTextContent()); | |
878 | break; | |
879 | case MIStrings.ADDRESS: | |
6651c1b4 | 880 | probeEvent.setAddress(String.format("%#016x", new BigInteger(rawData.getTextContent()))); //$NON-NLS-1$ |
f4401569 JRJ |
881 | break; |
882 | case MIStrings.OFFSET: | |
6651c1b4 | 883 | probeEvent.setOffset(String.format("%#016x", new BigInteger(rawData.getTextContent()))); //$NON-NLS-1$ |
f4401569 JRJ |
884 | break; |
885 | default: | |
886 | break; | |
887 | } | |
888 | } | |
889 | } | |
890 | ||
891 | // Syscalls does not have name. | |
892 | // Let put one to make sure this is user friendly via UI | |
893 | if (eventInfo.getEventType().equals(TraceEventType.SYSCALL)) { | |
894 | eventInfo.setName(TraceEventType.SYSCALL.getInName()); | |
895 | } | |
896 | ||
897 | // Add the event | |
898 | events.add(eventInfo); | |
899 | } | |
900 | } | |
901 | } | |
902 | ||
0df4af5f JRJ |
903 | /** |
904 | * @param fieldsList | |
905 | * a list of xml event_field element | |
906 | * @param fields | |
907 | * a list of field generated by xml parsing | |
908 | * @throws ExecutionException | |
909 | * when parsing fail or required elements are missing | |
910 | */ | |
911 | private static void getFieldInfo(NodeList fieldsList, List<IFieldInfo> fields) throws ExecutionException { | |
912 | IFieldInfo fieldInfo = null; | |
913 | for (int i = 0; i < fieldsList.getLength(); i++) { | |
914 | Node field = fieldsList.item(i); | |
915 | if (field.getNodeName().equalsIgnoreCase(MIStrings.EVENT_FIELD)) { | |
916 | // Get name | |
917 | Node name = getFirstOf(field.getChildNodes(), MIStrings.NAME); | |
918 | if (name == null) { | |
919 | throw new ExecutionException(Messages.TraceControl_MiMissingRequiredError); | |
920 | } | |
921 | fieldInfo = new FieldInfo(name.getTextContent()); | |
922 | ||
923 | // Populate the field information | |
924 | NodeList infos = field.getChildNodes(); | |
925 | for (int j = 0; j < infos.getLength(); j++) { | |
926 | Node info = infos.item(j); | |
927 | switch (info.getNodeName()) { | |
928 | case MIStrings.TYPE: | |
929 | fieldInfo.setFieldType(info.getTextContent()); | |
930 | break; | |
931 | default: | |
932 | break; | |
933 | } | |
934 | } | |
935 | fields.add(fieldInfo); | |
936 | } | |
937 | } | |
938 | } | |
939 | ||
940 | /** | |
941 | * Retrieve the fist instance of a given node with tag name equal to tagName | |
942 | * parameter | |
943 | * | |
944 | * @param nodeList | |
945 | * the list of Node to search against | |
946 | * @param tagName | |
947 | * the tag name of the desired node | |
948 | * @return the first occurrence of a node with a tag name equals to tagName | |
949 | */ | |
364dcfaf | 950 | private static @Nullable Node getFirstOf(NodeList nodeList, String tagName) { |
0df4af5f JRJ |
951 | Node node = null; |
952 | for (int i = 0; i < nodeList.getLength(); i++) { | |
953 | if (nodeList.item(i).getNodeName() == tagName) { | |
954 | node = nodeList.item(i); | |
955 | break; | |
956 | } | |
957 | } | |
958 | return node; | |
959 | } | |
960 | ||
961 | } |