| 1 | package de.uka.ipd.sdq.scheduler.processes.impl; |
| 2 | |
| 3 | import java.util.ArrayList; |
| 4 | import java.util.List; |
| 5 | |
| 6 | import de.uka.ipd.sdq.probfunction.math.util.MathTools; |
| 7 | import de.uka.ipd.sdq.scheduler.ISchedulableProcess; |
| 8 | import de.uka.ipd.sdq.scheduler.SchedulerModel; |
| 9 | import de.uka.ipd.sdq.scheduler.entities.SchedulerEntity; |
| 10 | import de.uka.ipd.sdq.scheduler.events.IDelayedAction; |
| 11 | import de.uka.ipd.sdq.scheduler.events.ProceedEvent; |
| 12 | import de.uka.ipd.sdq.scheduler.loaddistribution.IResourceInstanceConstraint; |
| 13 | import de.uka.ipd.sdq.scheduler.loaddistribution.constraints.MultipleResourceInstancesConstraint; |
| 14 | import de.uka.ipd.sdq.scheduler.loaddistribution.constraints.SingleResourceInstanceConstraint; |
| 15 | import de.uka.ipd.sdq.scheduler.processes.IActiveProcess; |
| 16 | import de.uka.ipd.sdq.scheduler.processes.PROCESS_STATE; |
| 17 | import de.uka.ipd.sdq.scheduler.queueing.IRunQueue; |
| 18 | import de.uka.ipd.sdq.scheduler.resources.IResourceInstance; |
| 19 | import de.uka.ipd.sdq.scheduler.sensors.IProcessStateSensor; |
| 20 | import de.uka.ipd.sdq.scheduler.strategy.IScheduler; |
| 21 | |
| 22 | public class ActiveProcess extends SchedulerEntity implements IActiveProcess { |
| 23 | |
| 24 | /** |
| 25 | * Creates a new wrapper containing the running information of a process. |
| 26 | * |
| 27 | * @param process |
| 28 | * The process that should be executed. |
| 29 | * |
| 30 | * @param id |
| 31 | * A unique identifier of the process. |
| 32 | */ |
| 33 | public ActiveProcess(SchedulerModel model, ISchedulableProcess process) { |
| 34 | super(model, ActiveProcess.class.getName()); |
| 35 | |
| 36 | this.affinityConstraint = null; |
| 37 | this.currentDemand = 0; |
| 38 | this.idealInstanceConstraint = null; |
| 39 | this.lastInstanceConstraint = null; |
| 40 | this.lastUpdateTime = 0; |
| 41 | this.proceedEvent = new ProceedEvent(model); |
| 42 | this.process = process; |
| 43 | this.processStateSensorList = new ArrayList<IProcessStateSensor>(); |
| 44 | this.runqueue = null; |
| 45 | this.state = PROCESS_STATE.READY; |
| 46 | } |
| 47 | |
| 48 | // ///////////////////////////////////////////////////////////////////// |
| 49 | // Basics |
| 50 | // ///////////////////////////////////////////////////////////////////// |
| 51 | |
| 52 | private ISchedulableProcess process; |
| 53 | private IRunQueue runqueue; |
| 54 | |
| 55 | public void update() { |
| 56 | } |
| 57 | |
| 58 | public IRunQueue getRunQueue() { |
| 59 | return runqueue; |
| 60 | } |
| 61 | |
| 62 | public void setRunQueue(IRunQueue runqueue){ |
| 63 | this.runqueue = runqueue; |
| 64 | } |
| 65 | |
| 66 | public ISchedulableProcess getSchedulableProcess() { |
| 67 | return process; |
| 68 | } |
| 69 | |
| 70 | public String getName() { |
| 71 | return process.getId(); |
| 72 | } |
| 73 | |
| 74 | public String getId(){ |
| 75 | return process.getId(); |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public String toString() { |
| 80 | return process.toString(); |
| 81 | } |
| 82 | |
| 83 | @Override |
| 84 | public boolean equals(Object obj) { |
| 85 | if (obj instanceof ActiveProcess) { |
| 86 | ActiveProcess process = (ActiveProcess) obj; |
| 87 | return process.getId().equals(this.getId()); |
| 88 | } |
| 89 | return false; |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | public int hashCode() { |
| 94 | String id = getId(); |
| 95 | int hashCode = id.hashCode(); |
| 96 | return hashCode; |
| 97 | } |
| 98 | |
| 99 | // ///////////////////////////////////////////////////////////////////// |
| 100 | // Process State |
| 101 | // ///////////////////////////////////////////////////////////////////// |
| 102 | |
| 103 | private PROCESS_STATE state = PROCESS_STATE.READY; |
| 104 | private List<IProcessStateSensor> processStateSensorList; |
| 105 | |
| 106 | public PROCESS_STATE getState() { |
| 107 | return state; |
| 108 | } |
| 109 | |
| 110 | public void setState(PROCESS_STATE new_state) { |
| 111 | state = new_state; |
| 112 | for (IProcessStateSensor sensor : processStateSensorList) { |
| 113 | sensor.update(new_state); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | /* (non-Javadoc) |
| 118 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setRunning() |
| 119 | */ |
| 120 | public void setRunning() { |
| 121 | setState(PROCESS_STATE.RUNNING); |
| 122 | just_blanced = false; |
| 123 | } |
| 124 | |
| 125 | /* (non-Javadoc) |
| 126 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setReady() |
| 127 | */ |
| 128 | public void setReady() { |
| 129 | setState(PROCESS_STATE.READY); |
| 130 | } |
| 131 | |
| 132 | /* (non-Javadoc) |
| 133 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setWaiting() |
| 134 | */ |
| 135 | public void setWaiting() { |
| 136 | setState(PROCESS_STATE.WAITING); |
| 137 | } |
| 138 | |
| 139 | /* (non-Javadoc) |
| 140 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#isRunning() |
| 141 | */ |
| 142 | public boolean isRunning() { |
| 143 | return getState() == PROCESS_STATE.RUNNING; |
| 144 | } |
| 145 | |
| 146 | /* (non-Javadoc) |
| 147 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#isReady() |
| 148 | */ |
| 149 | public boolean isReady() { |
| 150 | return getState() == PROCESS_STATE.READY; |
| 151 | } |
| 152 | |
| 153 | /* (non-Javadoc) |
| 154 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#isWaiting() |
| 155 | */ |
| 156 | public boolean isWaiting() { |
| 157 | return getState() == PROCESS_STATE.WAITING; |
| 158 | } |
| 159 | |
| 160 | /* (non-Javadoc) |
| 161 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#addStateSensor(de.uka.ipd.sdq.scheduler.processes.IProcessStateSensor) |
| 162 | */ |
| 163 | public void addStateSensor(IProcessStateSensor sensor) { |
| 164 | processStateSensorList.add(sensor); |
| 165 | } |
| 166 | |
| 167 | /* (non-Javadoc) |
| 168 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#removeStateSensor(de.uka.ipd.sdq.scheduler.processes.IProcessStateSensor) |
| 169 | */ |
| 170 | public void removeStateSensor(IProcessStateSensor sensor) { |
| 171 | processStateSensorList.remove(sensor); |
| 172 | } |
| 173 | |
| 174 | // ///////////////////////////////////////////////////////////////////// |
| 175 | // Timing |
| 176 | // ///////////////////////////////////////////////////////////////////// |
| 177 | |
| 178 | private double currentDemand = 0; |
| 179 | private double lastUpdateTime = 0; |
| 180 | |
| 181 | /* (non-Javadoc) |
| 182 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#getCurrentDemand() |
| 183 | */ |
| 184 | public double getCurrentDemand() { |
| 185 | return currentDemand; |
| 186 | } |
| 187 | |
| 188 | /* (non-Javadoc) |
| 189 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setCurrentDemand(double) |
| 190 | */ |
| 191 | public void setCurrentDemand(double currentDemand) { |
| 192 | assert MathTools.equalsDouble(this.currentDemand, 0.0) : this.currentDemand; |
| 193 | this.currentDemand = currentDemand; |
| 194 | } |
| 195 | |
| 196 | public void toNow() { |
| 197 | double currentTime = getModel().getSimulationControl().getCurrentSimulationTime(); |
| 198 | if (isRunning()) { |
| 199 | double passedTime = currentTime - lastUpdateTime; |
| 200 | if (passedTime > MathTools.EPSILON_ERROR) { |
| 201 | passTimeProcessing(passedTime); |
| 202 | } |
| 203 | } |
| 204 | lastUpdateTime = currentTime; |
| 205 | } |
| 206 | |
| 207 | |
| 208 | protected void passTimeProcessing(double passedTime) { |
| 209 | currentDemand -= passedTime; |
| 210 | if(MathTools.equalsDouble(currentDemand, 0)) |
| 211 | currentDemand = 0; |
| 212 | } |
| 213 | |
| 214 | |
| 215 | // ///////////////////////////////////////////////////////////////////// |
| 216 | // Resource Instance Constraints |
| 217 | // ///////////////////////////////////////////////////////////////////// |
| 218 | |
| 219 | private MultipleResourceInstancesConstraint affinityConstraint; |
| 220 | private SingleResourceInstanceConstraint idealInstanceConstraint; |
| 221 | private SingleResourceInstanceConstraint lastInstanceConstraint; |
| 222 | private double movedAtTime = 0; |
| 223 | private boolean just_blanced = false; |
| 224 | |
| 225 | /* (non-Javadoc) |
| 226 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setAffineInstances(java.util.List) |
| 227 | */ |
| 228 | public void setAffineInstances(List<IResourceInstance> instanceList) { |
| 229 | affinityConstraint = new MultipleResourceInstancesConstraint( |
| 230 | instanceList); |
| 231 | } |
| 232 | |
| 233 | /* (non-Javadoc) |
| 234 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#hasAffinityList() |
| 235 | */ |
| 236 | public boolean hasAffinityList() { |
| 237 | return affinityConstraint != null; |
| 238 | } |
| 239 | |
| 240 | /* (non-Javadoc) |
| 241 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#checkAffinity(de.uka.ipd.sdq.scheduler.resources.IResourceInstance) |
| 242 | */ |
| 243 | public boolean checkAffinity(IResourceInstance instance) { |
| 244 | return checkInstanceConstraint(affinityConstraint, instance); |
| 245 | } |
| 246 | |
| 247 | /* (non-Javadoc) |
| 248 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#removeNonAffineInstances(java.util.List) |
| 249 | */ |
| 250 | public void removeNonAffineInstances(List<IResourceInstance> instances) { |
| 251 | if (hasAffinityList()) { |
| 252 | for (IResourceInstance instance : instances) { |
| 253 | if (!affinityConstraint.check(instance)) { |
| 254 | instances.remove(instance); |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | /* (non-Javadoc) |
| 261 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setIdealInstance(de.uka.ipd.sdq.scheduler.resources.IResourceInstance) |
| 262 | */ |
| 263 | public void setIdealInstance(IResourceInstance instance) { |
| 264 | if (instance != null) { |
| 265 | idealInstanceConstraint = new SingleResourceInstanceConstraint(instance); |
| 266 | } else { |
| 267 | idealInstanceConstraint = null; |
| 268 | } |
| 269 | |
| 270 | |
| 271 | } |
| 272 | |
| 273 | /* (non-Javadoc) |
| 274 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#hasIdealInstance() |
| 275 | */ |
| 276 | public boolean hasIdealInstance() { |
| 277 | return idealInstanceConstraint != null; |
| 278 | } |
| 279 | |
| 280 | /* (non-Javadoc) |
| 281 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#isIdealInstance(de.uka.ipd.sdq.scheduler.resources.IResourceInstance) |
| 282 | */ |
| 283 | public boolean isIdealInstance(IResourceInstance instance) { |
| 284 | return checkInstanceConstraint(idealInstanceConstraint, instance); |
| 285 | } |
| 286 | |
| 287 | /* (non-Javadoc) |
| 288 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#getIdealInstance() |
| 289 | */ |
| 290 | public IResourceInstance getIdealInstance() { |
| 291 | if (hasIdealInstance()) { |
| 292 | return idealInstanceConstraint.getResourceInstance(); |
| 293 | } |
| 294 | return null; |
| 295 | } |
| 296 | |
| 297 | |
| 298 | /* (non-Javadoc) |
| 299 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setLastInstance(de.uka.ipd.sdq.scheduler.resources.IResourceInstance) |
| 300 | */ |
| 301 | public void setLastInstance(IResourceInstance instance) { |
| 302 | if (instance != null){ |
| 303 | lastInstanceConstraint = new SingleResourceInstanceConstraint(instance); |
| 304 | } else { |
| 305 | lastInstanceConstraint = null; |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | /* (non-Javadoc) |
| 310 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#hasLastInstance() |
| 311 | */ |
| 312 | public boolean hasLastInstance() { |
| 313 | return lastInstanceConstraint != null; |
| 314 | } |
| 315 | |
| 316 | /* (non-Javadoc) |
| 317 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#getLastInstance() |
| 318 | */ |
| 319 | public IResourceInstance getLastInstance() { |
| 320 | if (hasLastInstance()) |
| 321 | return lastInstanceConstraint.getResourceInstance(); |
| 322 | return null; |
| 323 | } |
| 324 | |
| 325 | /* (non-Javadoc) |
| 326 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#isLastInstance(de.uka.ipd.sdq.scheduler.resources.IResourceInstance) |
| 327 | */ |
| 328 | public boolean isLastInstance(IResourceInstance instance) { |
| 329 | return checkInstanceConstraint(lastInstanceConstraint, instance); |
| 330 | } |
| 331 | |
| 332 | private boolean checkInstanceConstraint( |
| 333 | IResourceInstanceConstraint constraint, IResourceInstance instance) { |
| 334 | if (constraint != null) { |
| 335 | return constraint.check(instance); |
| 336 | } |
| 337 | // if no constraint is defined, every instance is accepted. |
| 338 | return true; |
| 339 | } |
| 340 | |
| 341 | |
| 342 | // ///////////////////////////////////////////////////////////////////// |
| 343 | // Load Balancing |
| 344 | // ///////////////////////////////////////////////////////////////////// |
| 345 | |
| 346 | public boolean isMovable(IResourceInstance targetInstance) { |
| 347 | return checkAffinity(targetInstance) && !just_blanced; |
| 348 | } |
| 349 | |
| 350 | public void wasMovedTo(IResourceInstance dest) { |
| 351 | this.setLastInstance(dest); |
| 352 | this.setIdealInstance(dest); |
| 353 | this.just_blanced = true; |
| 354 | } |
| 355 | |
| 356 | |
| 357 | // ///////////////////////////////////////////////////////////////////// |
| 358 | // Events |
| 359 | // ///////////////////////////////////////////////////////////////////// |
| 360 | |
| 361 | private ProceedEvent proceedEvent = null; |
| 362 | |
| 363 | /* (non-Javadoc) |
| 364 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#scheduleProceedEvent() |
| 365 | */ |
| 366 | public void scheduleProceedEvent(IScheduler scheduler) { |
| 367 | cancelProceedEvent(); |
| 368 | proceedEvent.setScheduler(scheduler); |
| 369 | proceedEvent.schedule(this, getCurrentDemand()); |
| 370 | } |
| 371 | |
| 372 | /* (non-Javadoc) |
| 373 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#cancelProceedEvent() |
| 374 | */ |
| 375 | public void cancelProceedEvent() { |
| 376 | proceedEvent.removeEvent(); |
| 377 | } |
| 378 | |
| 379 | |
| 380 | /* (non-Javadoc) |
| 381 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#getTimeUntilNextInterruption() |
| 382 | */ |
| 383 | public double getTimeUntilNextInterruption() { |
| 384 | return currentDemand; |
| 385 | } |
| 386 | |
| 387 | /* (non-Javadoc) |
| 388 | * @see de.uka.ipd.sdq.scheduler.processes.impl.IRunnableProcess#setDelayedAction(de.uka.ipd.sdq.scheduler.events.IDelayedAction) |
| 389 | */ |
| 390 | public void setDelayedAction(IDelayedAction action) { |
| 391 | this.proceedEvent.setDelayedAction(action); |
| 392 | } |
| 393 | |
| 394 | public IActiveProcess createNewInstance(SchedulerModel model, ISchedulableProcess process) { |
| 395 | return new ActiveProcess(model, process); |
| 396 | } |
| 397 | |
| 398 | @Override |
| 399 | public IActiveProcess createNewInstance(ISchedulableProcess process) { |
| 400 | // TODO Auto-generated method stub |
| 401 | return null; |
| 402 | } |
| 403 | |
| 404 | } |