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1 | /******************************************************************************* |
2 | * Copyright (c) 2014 École Polytechnique de Montréal | |
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 | * Geneviève Bastien - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
6eca054d | 13 | package org.eclipse.tracecompass.internal.tmf.analysis.xml.core.model.readwrite; |
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14 | |
15 | import java.util.ArrayList; | |
16 | import java.util.List; | |
17 | ||
0b563c20 | 18 | import org.eclipse.jdt.annotation.NonNull; |
9411fd5b | 19 | import org.eclipse.jdt.annotation.Nullable; |
2bdf0193 | 20 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.Activator; |
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21 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.model.ITmfXmlModelFactory; |
22 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.model.ITmfXmlStateAttribute; | |
23 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.model.TmfXmlScenarioInfo; | |
24 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.model.TmfXmlStateValue; | |
25 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.module.IXmlStateSystemContainer; | |
26 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.module.XmlUtils; | |
27 | import org.eclipse.tracecompass.internal.tmf.analysis.xml.core.stateprovider.TmfXmlStrings; | |
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28 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem; |
29 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystemBuilder; | |
acec47ce | 30 | import org.eclipse.tracecompass.statesystem.core.StateSystemBuilderUtils; |
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31 | import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException; |
32 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; | |
33 | import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException; | |
34 | import org.eclipse.tracecompass.statesystem.core.statevalue.ITmfStateValue; | |
35 | import org.eclipse.tracecompass.statesystem.core.statevalue.TmfStateValue; | |
2bdf0193 | 36 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
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37 | import org.w3c.dom.Element; |
38 | ||
39 | /** | |
40 | * Implements a state value in a read write mode. See {@link TmfXmlStateValue} | |
41 | * for the syntax of the state value. | |
42 | * | |
43 | * In read/write mode, a state value can be considered as an assignation where | |
44 | * the state value is assigned to the quark represented by the state attributes | |
45 | * | |
46 | * @author Geneviève Bastien | |
47 | */ | |
b1ebf44e | 48 | public class TmfXmlReadWriteStateValue extends TmfXmlStateValue { |
1d7e62f9 | 49 | |
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50 | private static final String ILLEGAL_STATE_EXCEPTION_MESSAGE = "The state system hasn't been initialized yet"; //$NON-NLS-1$ |
51 | ||
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52 | /** |
53 | * Constructor where the path to the value is a list of state attributes | |
54 | * | |
55 | * @param modelFactory | |
56 | * The factory used to create XML model elements | |
57 | * @param node | |
58 | * The state value XML element | |
59 | * @param container | |
60 | * The state system container this state value belongs to | |
61 | * @param attributes | |
62 | * The attributes representing the path to this value | |
63 | */ | |
b1ebf44e | 64 | public TmfXmlReadWriteStateValue(TmfXmlReadWriteModelFactory modelFactory, Element node, IXmlStateSystemContainer container, List<ITmfXmlStateAttribute> attributes) { |
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65 | this(modelFactory, node, container, attributes, null); |
66 | } | |
67 | ||
68 | /** | |
69 | * Constructor where the path to the value is an event field | |
70 | * | |
71 | * @param modelFactory | |
72 | * The factory used to create XML model elements | |
73 | * @param node | |
74 | * The state value XML element | |
75 | * @param container | |
76 | * The state system container this state value belongs to | |
77 | * @param eventField | |
78 | * The event field where to get the value | |
79 | */ | |
b1ebf44e | 80 | public TmfXmlReadWriteStateValue(TmfXmlReadWriteModelFactory modelFactory, Element node, IXmlStateSystemContainer container, String eventField) { |
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81 | this(modelFactory, node, container, new ArrayList<ITmfXmlStateAttribute>(), eventField); |
82 | } | |
83 | ||
12685851 | 84 | private TmfXmlReadWriteStateValue(ITmfXmlModelFactory modelFactory, Element node, IXmlStateSystemContainer container, List<ITmfXmlStateAttribute> attributes, @Nullable String eventField) { |
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85 | super(modelFactory, node, container, attributes, eventField); |
86 | } | |
87 | ||
88 | @Override | |
12685851 | 89 | protected @Nullable ITmfStateSystemBuilder getStateSystem() { |
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90 | return (ITmfStateSystemBuilder) super.getStateSystem(); |
91 | } | |
92 | ||
93 | @Override | |
94 | protected TmfXmlStateValueBase initializeStateValue(ITmfXmlModelFactory modelFactory, Element node) { | |
95 | TmfXmlStateValueBase stateValueType = null; | |
96 | /* Process the XML Element state value */ | |
97 | String type = node.getAttribute(TmfXmlStrings.TYPE); | |
98 | String value = getSsContainer().getAttributeValue(node.getAttribute(TmfXmlStrings.VALUE)); | |
12685851 GB |
99 | if (value == null) { |
100 | throw new IllegalStateException(); | |
101 | } | |
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102 | |
103 | switch (type) { | |
104 | case TmfXmlStrings.TYPE_INT: { | |
105 | /* Integer value */ | |
106 | ITmfStateValue stateValue = TmfStateValue.newValueInt(Integer.parseInt(value)); | |
107 | stateValueType = new TmfXmlStateValueTmf(stateValue); | |
108 | break; | |
109 | } | |
110 | case TmfXmlStrings.TYPE_LONG: { | |
111 | /* Long value */ | |
112 | ITmfStateValue stateValue = TmfStateValue.newValueLong(Long.parseLong(value)); | |
113 | stateValueType = new TmfXmlStateValueTmf(stateValue); | |
114 | break; | |
115 | } | |
116 | case TmfXmlStrings.TYPE_STRING: { | |
117 | /* String value */ | |
118 | ITmfStateValue stateValue = TmfStateValue.newValueString(value); | |
119 | stateValueType = new TmfXmlStateValueTmf(stateValue); | |
120 | break; | |
121 | } | |
122 | case TmfXmlStrings.TYPE_NULL: { | |
123 | /* Null value */ | |
124 | ITmfStateValue stateValue = TmfStateValue.nullValue(); | |
125 | stateValueType = new TmfXmlStateValueTmf(stateValue); | |
126 | break; | |
127 | } | |
128 | case TmfXmlStrings.EVENT_FIELD: | |
129 | /* Event field */ | |
130 | stateValueType = new TmfXmlStateValueEventField(value); | |
131 | break; | |
132 | case TmfXmlStrings.TYPE_EVENT_NAME: | |
133 | /* The value is the event name */ | |
134 | stateValueType = new TmfXmlStateValueEventName(); | |
135 | break; | |
136 | case TmfXmlStrings.TYPE_DELETE: | |
137 | /* Deletes the value of an attribute */ | |
138 | stateValueType = new TmfXmlStateValueDelete(); | |
139 | break; | |
140 | case TmfXmlStrings.TYPE_QUERY: | |
141 | /* Value is the result of a query */ | |
4c4e2816 | 142 | List<@Nullable Element> children = XmlUtils.getChildElements(node); |
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143 | List<ITmfXmlStateAttribute> childAttributes = new ArrayList<>(); |
144 | for (Element child : children) { | |
12685851 GB |
145 | if (child == null) { |
146 | continue; | |
147 | } | |
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148 | ITmfXmlStateAttribute queryAttribute = modelFactory.createStateAttribute(child, getSsContainer()); |
149 | childAttributes.add(queryAttribute); | |
150 | } | |
151 | stateValueType = new TmfXmlStateValueQuery(childAttributes); | |
152 | break; | |
153 | default: | |
154 | throw new IllegalArgumentException(String.format("TmfXmlStateValue constructor: unexpected element %s for stateValue type", type)); //$NON-NLS-1$ | |
155 | } | |
156 | return stateValueType; | |
157 | } | |
158 | ||
159 | // ---------------------------------------------------------- | |
160 | // Internal state value classes for the different types | |
161 | // ---------------------------------------------------------- | |
162 | ||
163 | /** | |
164 | * Base class for all state value. Contain default methods to handle event, | |
165 | * process or increment the value | |
166 | */ | |
167 | protected abstract class TmfXmlStateValueTypeReadWrite extends TmfXmlStateValueBase { | |
168 | ||
169 | @Override | |
0b563c20 | 170 | public final void handleEvent(ITmfEvent event, int quark, long timestamp, @Nullable TmfXmlScenarioInfo scenarioInfo) throws StateValueTypeException, TimeRangeException, AttributeNotFoundException { |
1d7e62f9 | 171 | if (isIncrement()) { |
0b563c20 | 172 | incrementValue(event, quark, timestamp, scenarioInfo); |
1d7e62f9 | 173 | } else { |
0b563c20 | 174 | ITmfStateValue value = getValue(event, scenarioInfo); |
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175 | processValue(quark, timestamp, value); |
176 | } | |
177 | } | |
178 | ||
179 | @Override | |
180 | protected void processValue(int quark, long timestamp, ITmfStateValue value) throws AttributeNotFoundException, TimeRangeException, StateValueTypeException { | |
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181 | ITmfStateSystemBuilder ss = getStateSystem(); |
182 | if (ss == null) { | |
a194b17a | 183 | throw new IllegalStateException(ILLEGAL_STATE_EXCEPTION_MESSAGE); |
12685851 | 184 | } |
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185 | switch (getStackType()) { |
186 | case POP: | |
12685851 | 187 | ss.popAttribute(timestamp, quark); |
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188 | break; |
189 | case PUSH: | |
12685851 | 190 | ss.pushAttribute(timestamp, value, quark); |
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191 | break; |
192 | case NULL: | |
193 | case PEEK: | |
194 | default: | |
12685851 | 195 | ss.modifyAttribute(timestamp, value, quark); |
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196 | break; |
197 | } | |
198 | } | |
199 | ||
200 | @Override | |
0b563c20 | 201 | protected void incrementValue(ITmfEvent event, int quark, long timestamp, @Nullable TmfXmlScenarioInfo scenarioInfo) throws StateValueTypeException, TimeRangeException, AttributeNotFoundException { |
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202 | ITmfStateSystemBuilder ss = getStateSystem(); |
203 | if (ss == null) { | |
a194b17a | 204 | throw new IllegalStateException(ILLEGAL_STATE_EXCEPTION_MESSAGE); |
12685851 | 205 | } |
acec47ce | 206 | StateSystemBuilderUtils.incrementAttributeInt(ss, timestamp, quark, 1); |
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207 | } |
208 | } | |
209 | ||
b1e4ea44 | 210 | private static @Nullable ITmfStateValue incrementByType(int quark, ITmfStateSystem ss, ITmfStateValue stateValue) throws AttributeNotFoundException { |
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211 | ITmfStateValue value = null; |
212 | switch (stateValue.getType()) { | |
213 | case LONG: { | |
214 | long incrementLong = stateValue.unboxLong(); | |
215 | ITmfStateValue currentState = ss.queryOngoingState(quark); | |
216 | long currentValue = (currentState.isNull() ? 0 : currentState.unboxLong()); | |
217 | value = TmfStateValue.newValueLong(incrementLong + currentValue); | |
218 | return value; | |
219 | } | |
220 | case INTEGER: { | |
221 | int increment = stateValue.unboxInt(); | |
222 | ITmfStateValue currentState = ss.queryOngoingState(quark); | |
223 | int currentValue = (currentState.isNull() ? 0 : currentState.unboxInt()); | |
224 | value = TmfStateValue.newValueInt(increment + currentValue); | |
225 | return value; | |
226 | } | |
227 | case DOUBLE: | |
228 | case NULL: | |
229 | case STRING: | |
230 | default: | |
231 | } | |
232 | return value; | |
233 | } | |
234 | ||
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235 | /* This state value uses a constant value, defined in the XML */ |
236 | private class TmfXmlStateValueTmf extends TmfXmlStateValueTypeReadWrite { | |
237 | ||
238 | private final ITmfStateValue fValue; | |
239 | ||
240 | public TmfXmlStateValueTmf(ITmfStateValue value) { | |
241 | fValue = value; | |
242 | } | |
243 | ||
244 | @Override | |
0b563c20 | 245 | public ITmfStateValue getValue(@Nullable ITmfEvent event, @Nullable TmfXmlScenarioInfo scenarioInfo) { |
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246 | return fValue; |
247 | } | |
248 | ||
249 | @Override | |
0b563c20 | 250 | public void incrementValue(ITmfEvent event, int quark, long timestamp, @Nullable TmfXmlScenarioInfo scenarioInfo) throws StateValueTypeException, TimeRangeException, AttributeNotFoundException { |
1d7e62f9 | 251 | ITmfStateSystem ss = getStateSystem(); |
12685851 | 252 | if (ss == null) { |
a194b17a | 253 | throw new IllegalStateException(ILLEGAL_STATE_EXCEPTION_MESSAGE); |
12685851 | 254 | } |
b1e4ea44 | 255 | ITmfStateValue value = incrementByType(quark, ss, fValue); |
9411fd5b | 256 | if (value != null) { |
1d7e62f9 | 257 | processValue(quark, timestamp, value); |
9411fd5b | 258 | } else { |
1d7e62f9 | 259 | Activator.logWarning("TmfXmlStateValue: The increment value is not a number type"); //$NON-NLS-1$ |
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260 | } |
261 | } | |
9411fd5b | 262 | |
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263 | @Override |
264 | public String toString() { | |
265 | return "Value=" + fValue; //$NON-NLS-1$ | |
266 | } | |
267 | ||
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268 | } |
269 | ||
270 | /* The state value uses the value of an event field */ | |
271 | private class TmfXmlStateValueEventField extends TmfXmlStateValueTypeReadWrite { | |
272 | ||
273 | private final String fFieldName; | |
274 | ||
275 | public TmfXmlStateValueEventField(String field) { | |
276 | fFieldName = field; | |
277 | } | |
278 | ||
279 | @Override | |
0b563c20 | 280 | public ITmfStateValue getValue(@Nullable ITmfEvent event, @Nullable TmfXmlScenarioInfo scenarioInfo) { |
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281 | if (event == null) { |
282 | Activator.logWarning("XML State value: requested an event field, but event is null"); //$NON-NLS-1$ | |
283 | return TmfStateValue.nullValue(); | |
284 | } | |
285 | return getEventFieldValue(event, fFieldName); | |
286 | } | |
287 | ||
288 | @Override | |
0b563c20 | 289 | public void incrementValue(ITmfEvent event, int quark, long timestamp, @Nullable TmfXmlScenarioInfo scenarioInfo) throws StateValueTypeException, TimeRangeException, AttributeNotFoundException { |
1d7e62f9 | 290 | ITmfStateSystem ss = getSsContainer().getStateSystem(); |
12685851 | 291 | if (ss == null) { |
a194b17a | 292 | throw new IllegalStateException(ILLEGAL_STATE_EXCEPTION_MESSAGE); |
12685851 | 293 | } |
0b563c20 | 294 | ITmfStateValue incrementValue = getValue(event, scenarioInfo); |
b1e4ea44 | 295 | ITmfStateValue value = incrementByType(quark, ss, incrementValue); |
9411fd5b | 296 | if (value != null) { |
1d7e62f9 | 297 | processValue(quark, timestamp, value); |
9411fd5b | 298 | } else { |
1d7e62f9 | 299 | Activator.logWarning(String.format("TmfXmlStateValue: The event field increment %s is not a number type but a %s", fFieldName, incrementValue.getType())); //$NON-NLS-1$ |
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300 | } |
301 | } | |
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302 | |
303 | @Override | |
304 | public String toString() { | |
305 | return "Event Field=" + fFieldName; //$NON-NLS-1$ | |
306 | } | |
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307 | } |
308 | ||
309 | /* The state value is the event name */ | |
310 | private class TmfXmlStateValueEventName extends TmfXmlStateValueTypeReadWrite { | |
311 | ||
312 | @Override | |
0b563c20 | 313 | public @NonNull ITmfStateValue getValue(@Nullable ITmfEvent event, @Nullable TmfXmlScenarioInfo scenarioInfo) throws AttributeNotFoundException { |
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314 | if (event == null) { |
315 | Activator.logWarning("XML State value: request event name, but event is null"); //$NON-NLS-1$ | |
316 | return TmfStateValue.nullValue(); | |
317 | } | |
578716e6 | 318 | return TmfStateValue.newValueString(event.getName()); |
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319 | } |
320 | ||
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321 | @Override |
322 | public String toString() { | |
323 | return "Event name"; //$NON-NLS-1$ | |
324 | } | |
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325 | } |
326 | ||
327 | /* The state value deletes an attribute */ | |
328 | private class TmfXmlStateValueDelete extends TmfXmlStateValueTypeReadWrite { | |
329 | ||
330 | @Override | |
0b563c20 | 331 | public @NonNull ITmfStateValue getValue(@Nullable ITmfEvent event, @Nullable TmfXmlScenarioInfo scenarioInfo) throws AttributeNotFoundException { |
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332 | return TmfStateValue.nullValue(); |
333 | } | |
334 | ||
335 | @Override | |
336 | protected void processValue(int quark, long timestamp, ITmfStateValue value) throws TimeRangeException, AttributeNotFoundException { | |
337 | ITmfStateSystem ss = getStateSystem(); | |
338 | if (!(ss instanceof ITmfStateSystemBuilder)) { | |
339 | throw new IllegalStateException("incrementValue should never be called when not building the state system"); //$NON-NLS-1$ | |
340 | } | |
341 | ITmfStateSystemBuilder builder = (ITmfStateSystemBuilder) ss; | |
342 | builder.removeAttribute(timestamp, quark); | |
343 | } | |
344 | ||
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345 | @Override |
346 | public String toString() { | |
347 | return "Delete"; //$NON-NLS-1$ | |
348 | } | |
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349 | } |
350 | ||
351 | /* The state value uses the result of a query */ | |
352 | private class TmfXmlStateValueQuery extends TmfXmlStateValueTypeReadWrite { | |
353 | ||
354 | private final List<ITmfXmlStateAttribute> fQueryValue; | |
355 | ||
356 | public TmfXmlStateValueQuery(List<ITmfXmlStateAttribute> childAttributes) { | |
357 | fQueryValue = childAttributes; | |
358 | } | |
359 | ||
360 | @Override | |
0b563c20 | 361 | public ITmfStateValue getValue(@Nullable ITmfEvent event, @Nullable TmfXmlScenarioInfo scenarioInfo) throws AttributeNotFoundException { |
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362 | /* Query the state system for the value */ |
363 | ITmfStateValue value = TmfStateValue.nullValue(); | |
364 | int quarkQuery = IXmlStateSystemContainer.ROOT_QUARK; | |
365 | ITmfStateSystem ss = getStateSystem(); | |
12685851 | 366 | if (ss == null) { |
a194b17a | 367 | throw new IllegalStateException(ILLEGAL_STATE_EXCEPTION_MESSAGE); |
12685851 | 368 | } |
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369 | |
370 | for (ITmfXmlStateAttribute attribute : fQueryValue) { | |
0b563c20 | 371 | quarkQuery = attribute.getAttributeQuark(event, quarkQuery, scenarioInfo); |
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372 | if (quarkQuery == IXmlStateSystemContainer.ERROR_QUARK) { |
373 | /* the query is not valid, we stop the state change */ | |
374 | break; | |
375 | } | |
376 | } | |
377 | /* | |
378 | * the query can fail : for example, if a value is requested but has | |
379 | * not been set yet | |
380 | */ | |
381 | if (quarkQuery != IXmlStateSystemContainer.ERROR_QUARK) { | |
382 | value = ss.queryOngoingState(quarkQuery); | |
383 | } | |
384 | return value; | |
385 | } | |
386 | ||
387 | @Override | |
0b563c20 | 388 | public void incrementValue(ITmfEvent event, int quark, long timestamp, @Nullable TmfXmlScenarioInfo scenarioInfo) throws StateValueTypeException, TimeRangeException, AttributeNotFoundException { |
1d7e62f9 | 389 | ITmfStateSystem ss = getStateSystem(); |
12685851 | 390 | if (ss == null) { |
a194b17a | 391 | throw new IllegalStateException(ILLEGAL_STATE_EXCEPTION_MESSAGE); |
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392 | } |
393 | ||
0b563c20 | 394 | ITmfStateValue incrementValue = getValue(event, scenarioInfo); |
b1e4ea44 | 395 | ITmfStateValue value = incrementByType(quark, ss, incrementValue); |
9411fd5b | 396 | if (value != null) { |
1d7e62f9 | 397 | processValue(quark, timestamp, value); |
9411fd5b | 398 | } else { |
1d7e62f9 | 399 | Activator.logWarning("TmfXmlStateValue: The query result increment is not a number type"); //$NON-NLS-1$ |
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400 | } |
401 | } | |
cbac1ac1 JCK |
402 | |
403 | @Override | |
404 | public String toString() { | |
405 | return "Query=" + fQueryValue; //$NON-NLS-1$ | |
406 | } | |
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407 | } |
408 | ||
409 | } |