001package org.cpsolver.coursett; 002 003import java.io.File; 004import java.text.SimpleDateFormat; 005import java.util.ArrayList; 006import java.util.BitSet; 007import java.util.Calendar; 008import java.util.Date; 009import java.util.HashSet; 010import java.util.HashMap; 011import java.util.Hashtable; 012import java.util.Iterator; 013import java.util.List; 014import java.util.Locale; 015import java.util.Map; 016import java.util.Set; 017 018 019import org.cpsolver.coursett.constraint.ClassLimitConstraint; 020import org.cpsolver.coursett.constraint.DepartmentSpreadConstraint; 021import org.cpsolver.coursett.constraint.DiscouragedRoomConstraint; 022import org.cpsolver.coursett.constraint.GroupConstraint; 023import org.cpsolver.coursett.constraint.IgnoreStudentConflictsConstraint; 024import org.cpsolver.coursett.constraint.InstructorConstraint; 025import org.cpsolver.coursett.constraint.JenrlConstraint; 026import org.cpsolver.coursett.constraint.MinimizeNumberOfUsedGroupsOfTime; 027import org.cpsolver.coursett.constraint.MinimizeNumberOfUsedRoomsConstraint; 028import org.cpsolver.coursett.constraint.RoomConstraint; 029import org.cpsolver.coursett.constraint.SoftInstructorConstraint; 030import org.cpsolver.coursett.constraint.SpreadConstraint; 031import org.cpsolver.coursett.constraint.FlexibleConstraint.FlexibleConstraintType; 032import org.cpsolver.coursett.model.Configuration; 033import org.cpsolver.coursett.model.Lecture; 034import org.cpsolver.coursett.model.Placement; 035import org.cpsolver.coursett.model.RoomLocation; 036import org.cpsolver.coursett.model.RoomSharingModel; 037import org.cpsolver.coursett.model.Student; 038import org.cpsolver.coursett.model.StudentGroup; 039import org.cpsolver.coursett.model.TimeLocation; 040import org.cpsolver.coursett.model.TimetableModel; 041import org.cpsolver.ifs.assignment.Assignment; 042import org.cpsolver.ifs.model.Constraint; 043import org.cpsolver.ifs.solution.Solution; 044import org.cpsolver.ifs.solver.Solver; 045import org.cpsolver.ifs.util.Progress; 046import org.cpsolver.ifs.util.ToolBox; 047import org.dom4j.Document; 048import org.dom4j.Element; 049import org.dom4j.io.SAXReader; 050 051/** 052 * This class loads the input model from XML file. <br> 053 * <br> 054 * Parameters: 055 * <table border='1' summary='Related Solver Parameters'> 056 * <tr> 057 * <th>Parameter</th> 058 * <th>Type</th> 059 * <th>Comment</th> 060 * </tr> 061 * <tr> 062 * <td>General.Input</td> 063 * <td>{@link String}</td> 064 * <td>Input XML file</td> 065 * </tr> 066 * <tr> 067 * <td>General.DeptBalancing</td> 068 * <td>{@link Boolean}</td> 069 * <td>Use {@link DepartmentSpreadConstraint}</td> 070 * </tr> 071 * <tr> 072 * <td>General.InteractiveMode</td> 073 * <td>{@link Boolean}</td> 074 * <td>Interactive mode (see {@link Lecture#purgeInvalidValues(boolean)})</td> 075 * </tr> 076 * <tr> 077 * <td>General.ForcedPerturbances</td> 078 * <td>{@link Integer}</td> 079 * <td>For testing of MPP: number of input perturbations, i.e., classes with 080 * prohibited intial assignment</td> 081 * </tr> 082 * <tr> 083 * <td>General.UseDistanceConstraints</td> 084 * <td>{@link Boolean}</td> 085 * <td>Consider distances between buildings</td> 086 * </tr> 087 * </table> 088 * 089 * @version CourseTT 1.3 (University Course Timetabling)<br> 090 * Copyright (C) 2006 - 2014 Tomáš Müller<br> 091 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 092 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 093 * <br> 094 * This library is free software; you can redistribute it and/or modify 095 * it under the terms of the GNU Lesser General Public License as 096 * published by the Free Software Foundation; either version 3 of the 097 * License, or (at your option) any later version. <br> 098 * <br> 099 * This library is distributed in the hope that it will be useful, but 100 * WITHOUT ANY WARRANTY; without even the implied warranty of 101 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 102 * Lesser General Public License for more details. <br> 103 * <br> 104 * You should have received a copy of the GNU Lesser General Public 105 * License along with this library; if not see 106 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>. 107 */ 108 109public class TimetableXMLLoader extends TimetableLoader { 110 private static org.apache.log4j.Logger sLogger = org.apache.log4j.Logger.getLogger(TimetableXMLLoader.class); 111 private static SimpleDateFormat sDF = new SimpleDateFormat("MM/dd"); 112 113 private boolean iDeptBalancing = true; 114 private int iForcedPerturbances = 0; 115 116 private boolean iInteractiveMode = false; 117 private File iInputFile; 118 119 private Progress iProgress = null; 120 121 public TimetableXMLLoader(TimetableModel model, Assignment<Lecture, Placement> assignment) { 122 super(model, assignment); 123 iProgress = Progress.getInstance(getModel()); 124 iInputFile = new File(getModel().getProperties().getProperty("General.Input", 125 "." + File.separator + "solution.xml")); 126 iForcedPerturbances = getModel().getProperties().getPropertyInt("General.ForcedPerturbances", 0); 127 iDeptBalancing = getModel().getProperties().getPropertyBoolean("General.DeptBalancing", true); 128 iInteractiveMode = getModel().getProperties().getPropertyBoolean("General.InteractiveMode", iInteractiveMode); 129 } 130 131 private Solver<Lecture, Placement> iSolver = null; 132 133 public void setSolver(Solver<Lecture, Placement> solver) { 134 iSolver = solver; 135 } 136 137 public Solver<Lecture, Placement> getSolver() { 138 return iSolver; 139 } 140 141 public void setInputFile(File inputFile) { 142 iInputFile = inputFile; 143 } 144 145 @Override 146 public void load() throws Exception { 147 load(null); 148 } 149 150 public void load(Solution<Lecture, Placement> currentSolution) throws Exception { 151 sLogger.debug("Reading XML data from " + iInputFile); 152 iProgress.setPhase("Reading " + iInputFile.getName() + " ..."); 153 154 Document document = (new SAXReader()).read(iInputFile); 155 Element root = document.getRootElement(); 156 157 sLogger.debug("Root element: " + root.getName()); 158 if (!"llrt".equals(root.getName()) && !"timetable".equals(root.getName())) { 159 throw new IllegalArgumentException("Given XML file is not large lecture room timetabling problem."); 160 } 161 162 if (root.element("input") != null) 163 root = root.element("input"); 164 165 iProgress.load(root, true); 166 iProgress.message(Progress.MSGLEVEL_STAGE, "Restoring from backup ..."); 167 168 doLoad(currentSolution, root); 169 170 try { 171 getSolver().getClass().getMethod("load", new Class[] { Element.class }).invoke(getSolver(), new Object[] { root }); 172 } catch (Exception e) { 173 } 174 175 iProgress.setPhase("Done", 1); 176 iProgress.incProgress(); 177 178 sLogger.debug("Model successfully loaded."); 179 iProgress.info("Model successfully loaded."); 180 } 181 182 public void load(Solution<Lecture, Placement> currentSolution, Document document) { 183 iProgress.setPhase("Reading solution file ..."); 184 185 Element root = document.getRootElement(); 186 187 sLogger.debug("Root element: " + root.getName()); 188 if (!"llrt".equals(root.getName()) && !"timetable".equals(root.getName())) { 189 throw new IllegalArgumentException("Given XML file is not large lecture room timetabling problem."); 190 } 191 192 if (root.element("input") != null) 193 root = root.element("input"); 194 195 iProgress.load(root, true); 196 iProgress.message(Progress.MSGLEVEL_STAGE, "Restoring from backup ..."); 197 198 doLoad(currentSolution, root); 199 200 iProgress.setPhase("Done", 1); 201 iProgress.incProgress(); 202 203 iProgress.info("Model successfully loaded."); 204 } 205 206 protected void doLoad(Solution<Lecture, Placement> currentSolution, Element root) { 207 if (root.attributeValue("term") != null) 208 getModel().getProperties().setProperty("Data.Term", root.attributeValue("term")); 209 if (root.attributeValue("year") != null) 210 getModel().setYear(Integer.parseInt(root.attributeValue("year"))); 211 else if (root.attributeValue("term") != null) 212 getModel().setYear(Integer.parseInt(root.attributeValue("term").substring(0, 4))); 213 if (root.attributeValue("initiative") != null) 214 getModel().getProperties().setProperty("Data.Initiative", root.attributeValue("initiative")); 215 if (root.attributeValue("semester") != null && root.attributeValue("year") != null) 216 getModel().getProperties().setProperty("Data.Term", 217 root.attributeValue("semester") + root.attributeValue("year")); 218 if (root.attributeValue("session") != null) 219 getModel().getProperties().setProperty("General.SessionId", root.attributeValue("session")); 220 if (root.attributeValue("solverGroup") != null) 221 getModel().getProperties().setProperty("General.SolverGroupId", root.attributeValue("solverGroup")); 222 String version = root.attributeValue("version"); 223 224 // Student sectioning considers the whole course (including committed classes), since 2.5 225 boolean sectionWholeCourse = true; 226 227 if (version != null && version.indexOf('.') >= 0) { 228 int majorVersion = Integer.parseInt(version.substring(0, version.indexOf('.'))); 229 int minorVersion = Integer.parseInt(version.substring(1 + version.indexOf('.'))); 230 231 sectionWholeCourse = (majorVersion == 2 && minorVersion >= 5) || majorVersion > 2; 232 } 233 234 HashMap<Long, TimeLocation> perts = new HashMap<Long, TimeLocation>(); 235 if (getModel().getProperties().getPropertyInt("MPP.TimePert", 0) > 0) { 236 int nrChanges = getModel().getProperties().getPropertyInt("MPP.TimePert", 0); 237 int idx = 0; 238 for (Iterator<?> i = root.element("perturbations").elementIterator("class"); i.hasNext() && idx < nrChanges; idx++) { 239 Element pertEl = (Element) i.next(); 240 Long classId = Long.valueOf(pertEl.attributeValue("id")); 241 TimeLocation tl = new TimeLocation(Integer.parseInt(pertEl.attributeValue("days"), 2), Integer 242 .parseInt(pertEl.attributeValue("start")), Integer.parseInt(pertEl.attributeValue("length")), 243 0, 0.0, 0, null, null, null, 0); 244 perts.put(classId, tl); 245 } 246 } 247 248 iProgress.setPhase("Creating rooms ...", root.element("rooms").elements("room").size()); 249 HashMap<String, Element> roomElements = new HashMap<String, Element>(); 250 HashMap<String, RoomConstraint> roomConstraints = new HashMap<String, RoomConstraint>(); 251 HashMap<Long, List<Lecture>> sameLectures = new HashMap<Long, List<Lecture>>(); 252 for (Iterator<?> i = root.element("rooms").elementIterator("room"); i.hasNext();) { 253 Element roomEl = (Element) i.next(); 254 iProgress.incProgress(); 255 roomElements.put(roomEl.attributeValue("id"), roomEl); 256 if ("false".equals(roomEl.attributeValue("constraint"))) 257 continue; 258 RoomSharingModel sharingModel = null; 259 Element sharingEl = roomEl.element("sharing"); 260 if (sharingEl != null) { 261 Character freeForAllPrefChar = null; 262 Element freeForAllEl = sharingEl.element("freeForAll"); 263 if (freeForAllEl != null) 264 freeForAllPrefChar = freeForAllEl.attributeValue("value", "F").charAt(0); 265 Character notAvailablePrefChar = null; 266 Element notAvailableEl = sharingEl.element("notAvailable"); 267 if (notAvailableEl != null) 268 notAvailablePrefChar = notAvailableEl.attributeValue("value", "X").charAt(0); 269 String pattern = sharingEl.element("pattern").getText(); 270 int unit = Integer.parseInt(sharingEl.element("pattern").attributeValue("unit", "1")); 271 Map<Character, Long> departments = new HashMap<Character, Long>(); 272 for (Iterator<?> j = sharingEl.elementIterator("department"); j.hasNext(); ) { 273 Element deptEl = (Element)j.next(); 274 char value = deptEl.attributeValue("value", String.valueOf((char)('0' + departments.size()))).charAt(0); 275 Long id = Long.valueOf(deptEl.attributeValue("id")); 276 departments.put(value, id); 277 } 278 sharingModel = new RoomSharingModel(unit, departments, pattern, freeForAllPrefChar, notAvailablePrefChar); 279 } 280 boolean ignoreTooFar = false; 281 if ("true".equals(roomEl.attributeValue("ignoreTooFar"))) 282 ignoreTooFar = true; 283 boolean fake = false; 284 if ("true".equals(roomEl.attributeValue("fake"))) 285 fake = true; 286 Double posX = null, posY = null; 287 if (roomEl.attributeValue("location") != null) { 288 String loc = roomEl.attributeValue("location"); 289 posX = Double.valueOf(loc.substring(0, loc.indexOf(','))); 290 posY = Double.valueOf(loc.substring(loc.indexOf(',') + 1)); 291 } 292 boolean discouraged = "true".equals(roomEl.attributeValue("discouraged")); 293 RoomConstraint constraint = (discouraged ? new DiscouragedRoomConstraint( 294 getModel().getProperties(), 295 Long.valueOf(roomEl.attributeValue("id")), 296 (roomEl.attributeValue("name") != null ? roomEl.attributeValue("name") : "r" 297 + roomEl.attributeValue("id")), 298 (roomEl.attributeValue("building") == null ? null : Long.valueOf(roomEl.attributeValue("building"))), 299 Integer.parseInt(roomEl.attributeValue("capacity")), sharingModel, posX, posY, ignoreTooFar, !fake) 300 : new RoomConstraint(Long.valueOf(roomEl.attributeValue("id")), 301 (roomEl.attributeValue("name") != null ? roomEl.attributeValue("name") : "r" 302 + roomEl.attributeValue("id")), (roomEl.attributeValue("building") == null ? null 303 : Long.valueOf(roomEl.attributeValue("building"))), Integer.parseInt(roomEl 304 .attributeValue("capacity")), sharingModel, posX, posY, ignoreTooFar, !fake)); 305 if (roomEl.attributeValue("type") != null) 306 constraint.setType(Long.valueOf(roomEl.attributeValue("type"))); 307 getModel().addConstraint(constraint); 308 roomConstraints.put(roomEl.attributeValue("id"), constraint); 309 310 for (Iterator<?> j = roomEl.elementIterator("travel-time"); j.hasNext();) { 311 Element travelTimeEl = (Element)j.next(); 312 getModel().getDistanceMetric().addTravelTime(constraint.getResourceId(), 313 Long.valueOf(travelTimeEl.attributeValue("id")), 314 Integer.valueOf(travelTimeEl.attributeValue("minutes"))); 315 } 316 } 317 318 HashMap<String, InstructorConstraint> instructorConstraints = new HashMap<String, InstructorConstraint>(); 319 if (root.element("instructors") != null) { 320 for (Iterator<?> i = root.element("instructors").elementIterator("instructor"); i.hasNext();) { 321 Element instructorEl = (Element) i.next(); 322 InstructorConstraint instructorConstraint = null; 323 if ("true".equalsIgnoreCase(instructorEl.attributeValue("soft", "false"))) { 324 instructorConstraint = new SoftInstructorConstraint(Long.valueOf(instructorEl 325 .attributeValue("id")), instructorEl.attributeValue("puid"), (instructorEl 326 .attributeValue("name") != null ? instructorEl.attributeValue("name") : "i" 327 + instructorEl.attributeValue("id")), "true".equals(instructorEl.attributeValue("ignDist"))); 328 } else { 329 instructorConstraint = new InstructorConstraint(Long.valueOf(instructorEl 330 .attributeValue("id")), instructorEl.attributeValue("puid"), (instructorEl 331 .attributeValue("name") != null ? instructorEl.attributeValue("name") : "i" 332 + instructorEl.attributeValue("id")), "true".equals(instructorEl.attributeValue("ignDist"))); 333 } 334 if (instructorEl.attributeValue("type") != null) 335 instructorConstraint.setType(Long.valueOf(instructorEl.attributeValue("type"))); 336 instructorConstraints.put(instructorEl.attributeValue("id"), instructorConstraint); 337 338 getModel().addConstraint(instructorConstraint); 339 } 340 } 341 HashMap<Long, String> depts = new HashMap<Long, String>(); 342 if (root.element("departments") != null) { 343 for (Iterator<?> i = root.element("departments").elementIterator("department"); i.hasNext();) { 344 Element deptEl = (Element) i.next(); 345 depts.put(Long.valueOf(deptEl.attributeValue("id")), (deptEl.attributeValue("name") != null ? deptEl 346 .attributeValue("name") : "d" + deptEl.attributeValue("id"))); 347 } 348 } 349 350 HashMap<Long, Configuration> configs = new HashMap<Long, Configuration>(); 351 HashMap<Long, List<Configuration>> alternativeConfigurations = new HashMap<Long, List<Configuration>>(); 352 if (root.element("configurations") != null) { 353 for (Iterator<?> i = root.element("configurations").elementIterator("config"); i.hasNext();) { 354 Element configEl = (Element) i.next(); 355 Long configId = Long.valueOf(configEl.attributeValue("id")); 356 int limit = Integer.parseInt(configEl.attributeValue("limit")); 357 Long offeringId = Long.valueOf(configEl.attributeValue("offering")); 358 Configuration config = new Configuration(offeringId, configId, limit); 359 configs.put(configId, config); 360 List<Configuration> altConfigs = alternativeConfigurations.get(offeringId); 361 if (altConfigs == null) { 362 altConfigs = new ArrayList<Configuration>(); 363 alternativeConfigurations.put(offeringId, altConfigs); 364 } 365 altConfigs.add(config); 366 config.setAltConfigurations(altConfigs); 367 } 368 } 369 370 iProgress.setPhase("Creating variables ...", root.element("classes").elements("class").size()); 371 372 HashMap<String, Element> classElements = new HashMap<String, Element>(); 373 HashMap<String, Lecture> lectures = new HashMap<String, Lecture>(); 374 HashMap<Lecture, Placement> assignedPlacements = new HashMap<Lecture, Placement>(); 375 HashMap<Lecture, String> parents = new HashMap<Lecture, String>(); 376 int ord = 0; 377 for (Iterator<?> i1 = root.element("classes").elementIterator("class"); i1.hasNext();) { 378 Element classEl = (Element) i1.next(); 379 380 Configuration config = null; 381 if (classEl.attributeValue("config") != null) { 382 config = configs.get(Long.valueOf(classEl.attributeValue("config"))); 383 } 384 if (config == null && classEl.attributeValue("offering") != null) { 385 Long offeringId = Long.valueOf(classEl.attributeValue("offering")); 386 Long configId = Long.valueOf(classEl.attributeValue("config")); 387 List<Configuration> altConfigs = alternativeConfigurations.get(offeringId); 388 if (altConfigs == null) { 389 altConfigs = new ArrayList<Configuration>(); 390 alternativeConfigurations.put(offeringId, altConfigs); 391 } 392 for (Configuration c : altConfigs) { 393 if (c.getConfigId().equals(configId)) { 394 config = c; 395 break; 396 } 397 } 398 if (config == null) { 399 config = new Configuration(offeringId, configId, -1); 400 altConfigs.add(config); 401 config.setAltConfigurations(altConfigs); 402 configs.put(config.getConfigId(), config); 403 } 404 } 405 406 DatePattern defaultDatePattern = new DatePattern(); 407 if (classEl.attributeValue("dates") == null) { 408 int startDay = Integer.parseInt(classEl.attributeValue("startDay", "0")); 409 int endDay = Integer.parseInt(classEl.attributeValue("endDay", "1")); 410 defaultDatePattern.setPattern(startDay, endDay); 411 defaultDatePattern.setName(sDF.format(getDate(getModel().getYear(), startDay)) + "-" + sDF.format(getDate(getModel().getYear(), endDay))); 412 } else { 413 defaultDatePattern.setId(classEl.attributeValue("datePattern") == null ? null : Long.valueOf(classEl.attributeValue("datePattern"))); 414 defaultDatePattern.setName(classEl.attributeValue("datePatternName")); 415 defaultDatePattern.setPattern(classEl.attributeValue("dates")); 416 } 417 Hashtable<Long, DatePattern> datePatterns = new Hashtable<Long, TimetableXMLLoader.DatePattern>(); 418 for (Iterator<?> i2 = classEl.elementIterator("date"); i2.hasNext();) { 419 Element dateEl = (Element) i2.next(); 420 Long id = Long.valueOf(dateEl.attributeValue("id")); 421 datePatterns.put(id, new DatePattern( 422 id, 423 dateEl.attributeValue("name"), 424 dateEl.attributeValue("pattern"))); 425 } 426 classElements.put(classEl.attributeValue("id"), classEl); 427 List<InstructorConstraint> ics = new ArrayList<InstructorConstraint>(); 428 for (Iterator<?> i2 = classEl.elementIterator("instructor"); i2.hasNext();) { 429 Element instructorEl = (Element) i2.next(); 430 InstructorConstraint instructorConstraint = instructorConstraints 431 .get(instructorEl.attributeValue("id")); 432 if (instructorConstraint == null) { 433 instructorConstraint = new InstructorConstraint(Long.valueOf(instructorEl.attributeValue("id")), 434 instructorEl.attributeValue("puid"), 435 (instructorEl.attributeValue("name") != null ? instructorEl.attributeValue("name") : "i" 436 + instructorEl.attributeValue("id")), "true".equals(instructorEl 437 .attributeValue("ignDist"))); 438 instructorConstraints.put(instructorEl.attributeValue("id"), instructorConstraint); 439 getModel().addConstraint(instructorConstraint); 440 } 441 ics.add(instructorConstraint); 442 } 443 List<RoomLocation> roomLocations = new ArrayList<RoomLocation>(); 444 List<RoomConstraint> roomConstraintsThisClass = new ArrayList<RoomConstraint>(); 445 List<RoomLocation> initialRoomLocations = new ArrayList<RoomLocation>(); 446 List<RoomLocation> assignedRoomLocations = new ArrayList<RoomLocation>(); 447 List<RoomLocation> bestRoomLocations = new ArrayList<RoomLocation>(); 448 for (Iterator<?> i2 = classEl.elementIterator("room"); i2.hasNext();) { 449 Element roomLocationEl = (Element) i2.next(); 450 Element roomEl = roomElements.get(roomLocationEl.attributeValue("id")); 451 RoomConstraint roomConstraint = roomConstraints.get(roomLocationEl.attributeValue("id")); 452 453 Long roomId = null; 454 String roomName = null; 455 Long bldgId = null; 456 457 if (roomConstraint != null) { 458 roomConstraintsThisClass.add(roomConstraint); 459 roomId = roomConstraint.getResourceId(); 460 roomName = roomConstraint.getRoomName(); 461 bldgId = roomConstraint.getBuildingId(); 462 } else { 463 roomId = Long.valueOf(roomEl.attributeValue("id")); 464 roomName = (roomEl.attributeValue("name") != null ? roomEl.attributeValue("name") : "r" 465 + roomEl.attributeValue("id")); 466 bldgId = (roomEl.attributeValue("building") == null ? null : Long.valueOf(roomEl 467 .attributeValue("building"))); 468 } 469 470 boolean ignoreTooFar = false; 471 if ("true".equals(roomEl.attributeValue("ignoreTooFar"))) 472 ignoreTooFar = true; 473 Double posX = null, posY = null; 474 if (roomEl.attributeValue("location") != null) { 475 String loc = roomEl.attributeValue("location"); 476 posX = Double.valueOf(loc.substring(0, loc.indexOf(','))); 477 posY = Double.valueOf(loc.substring(loc.indexOf(',') + 1)); 478 } 479 RoomLocation rl = new RoomLocation(roomId, roomName, bldgId, Integer.parseInt(roomLocationEl 480 .attributeValue("pref")), Integer.parseInt(roomEl.attributeValue("capacity")), posX, posY, 481 ignoreTooFar, roomConstraint); 482 if ("true".equals(roomLocationEl.attributeValue("initial"))) 483 initialRoomLocations.add(rl); 484 if ("true".equals(roomLocationEl.attributeValue("solution"))) 485 assignedRoomLocations.add(rl); 486 if ("true".equals(roomLocationEl.attributeValue("best"))) 487 bestRoomLocations.add(rl); 488 roomLocations.add(rl); 489 } 490 List<TimeLocation> timeLocations = new ArrayList<TimeLocation>(); 491 TimeLocation initialTimeLocation = null; 492 TimeLocation assignedTimeLocation = null; 493 TimeLocation bestTimeLocation = null; 494 TimeLocation prohibitedTime = perts.get(Long.valueOf(classEl.attributeValue("id"))); 495 496 for (Iterator<?> i2 = classEl.elementIterator("time"); i2.hasNext();) { 497 Element timeLocationEl = (Element) i2.next(); 498 DatePattern dp = defaultDatePattern; 499 if (timeLocationEl.attributeValue("date") != null) 500 dp = datePatterns.get(Long.valueOf(timeLocationEl.attributeValue("date"))); 501 TimeLocation tl = new TimeLocation( 502 Integer.parseInt(timeLocationEl.attributeValue("days"), 2), 503 Integer.parseInt(timeLocationEl.attributeValue("start")), 504 Integer.parseInt(timeLocationEl.attributeValue("length")), 505 (int) Double.parseDouble(timeLocationEl.attributeValue("pref")), 506 Double.parseDouble(timeLocationEl.attributeValue("npref", timeLocationEl.attributeValue("pref"))), 507 Integer.parseInt(timeLocationEl.attributeValue("datePref", "0")), 508 dp.getId(), dp.getName(), dp.getPattern(), 509 Integer.parseInt(timeLocationEl.attributeValue("breakTime") == null ? "-1" : timeLocationEl.attributeValue("breakTime"))); 510 if (tl.getBreakTime() < 0) tl.setBreakTime(tl.getLength() == 18 ? 15 : 10); 511 if (timeLocationEl.attributeValue("pattern") != null) 512 tl.setTimePatternId(Long.valueOf(timeLocationEl.attributeValue("pattern"))); 513 /* 514 * if (timePatternTransform) tl = 515 * transformTimePattern(Long.valueOf 516 * (classEl.attributeValue("id")),tl); 517 */ 518 if (prohibitedTime != null && prohibitedTime.getDayCode() == tl.getDayCode() 519 && prohibitedTime.getStartSlot() == tl.getStartSlot() 520 && prohibitedTime.getLength() == tl.getLength()) { 521 sLogger.info("Time " + tl.getLongName(true) + " is prohibited for class " + classEl.attributeValue("id")); 522 continue; 523 } 524 if ("true".equals(timeLocationEl.attributeValue("solution"))) 525 assignedTimeLocation = tl; 526 if ("true".equals(timeLocationEl.attributeValue("initial"))) 527 initialTimeLocation = tl; 528 if ("true".equals(timeLocationEl.attributeValue("best"))) 529 bestTimeLocation = tl; 530 timeLocations.add(tl); 531 } 532 if (timeLocations.isEmpty()) { 533 sLogger.error(" ERROR: No time."); 534 continue; 535 } 536 537 int minClassLimit = 0; 538 int maxClassLimit = 0; 539 float room2limitRatio = 1.0f; 540 if (!"true".equals(classEl.attributeValue("committed"))) { 541 if (classEl.attributeValue("expectedCapacity") != null) { 542 minClassLimit = maxClassLimit = Integer.parseInt(classEl.attributeValue("expectedCapacity")); 543 int roomCapacity = Integer.parseInt(classEl.attributeValue("roomCapacity", classEl 544 .attributeValue("expectedCapacity"))); 545 if (minClassLimit == 0) 546 minClassLimit = maxClassLimit = roomCapacity; 547 room2limitRatio = (minClassLimit == 0 ? 1.0f : ((float) roomCapacity) / minClassLimit); 548 } else { 549 if (classEl.attribute("classLimit") != null) { 550 minClassLimit = maxClassLimit = Integer.parseInt(classEl.attributeValue("classLimit")); 551 } else { 552 minClassLimit = Integer.parseInt(classEl.attributeValue("minClassLimit")); 553 maxClassLimit = Integer.parseInt(classEl.attributeValue("maxClassLimit")); 554 } 555 room2limitRatio = Float.parseFloat(classEl.attributeValue("roomToLimitRatio", "1.0")); 556 } 557 } 558 559 Lecture lecture = new Lecture(Long.valueOf(classEl.attributeValue("id")), 560 (classEl.attributeValue("solverGroup") != null ? Long 561 .valueOf(classEl.attributeValue("solverGroup")) : null), Long.valueOf(classEl 562 .attributeValue("subpart", classEl.attributeValue("course", "-1"))), (classEl 563 .attributeValue("name") != null ? classEl.attributeValue("name") : "c" 564 + classEl.attributeValue("id")), timeLocations, roomLocations, Integer.parseInt(classEl 565 .attributeValue("nrRooms", roomLocations.isEmpty() ? "0" : "1")), null, minClassLimit, maxClassLimit, room2limitRatio); 566 lecture.setNote(classEl.attributeValue("note")); 567 568 if ("true".equals(classEl.attributeValue("committed"))) 569 lecture.setCommitted(true); 570 571 if (!lecture.isCommitted() && classEl.attributeValue("ord") != null) 572 lecture.setOrd(Integer.parseInt(classEl.attributeValue("ord"))); 573 else 574 lecture.setOrd(ord++); 575 576 lecture.setWeight(Double.parseDouble(classEl.attributeValue("weight", "1.0"))); 577 578 if (lecture.getNrRooms() > 1) 579 lecture.setMaxRoomCombinations(Integer.parseInt(classEl.attributeValue("maxRoomCombinations", "-1"))); 580 581 if (config != null) 582 lecture.setConfiguration(config); 583 584 if (initialTimeLocation != null && initialRoomLocations.size() == lecture.getNrRooms()) { 585 lecture.setInitialAssignment(new Placement(lecture, initialTimeLocation, initialRoomLocations)); 586 } 587 if (assignedTimeLocation != null && assignedRoomLocations.size() == lecture.getNrRooms()) { 588 assignedPlacements.put(lecture, new Placement(lecture, assignedTimeLocation, assignedRoomLocations)); 589 } else if (lecture.getInitialAssignment() != null) { 590 // assignedPlacements.put(lecture, lecture.getInitialAssignment()); 591 } 592 if (bestTimeLocation != null && bestRoomLocations.size() == lecture.getNrRooms()) { 593 lecture.setBestAssignment(new Placement(lecture, bestTimeLocation, bestRoomLocations), 0); 594 } else if (assignedTimeLocation != null && assignedRoomLocations.size() == lecture.getNrRooms()) { 595 // lecture.setBestAssignment(assignedPlacements.get(lecture), 0); 596 } 597 598 lectures.put(classEl.attributeValue("id"), lecture); 599 if (classEl.attributeValue("department") != null) 600 lecture.setDepartment(Long.valueOf(classEl.attributeValue("department"))); 601 if (classEl.attribute("scheduler") != null) 602 lecture.setScheduler(Long.valueOf(classEl.attributeValue("scheduler"))); 603 if ((sectionWholeCourse || !lecture.isCommitted()) && classEl.attributeValue("subpart", classEl.attributeValue("course")) != null) { 604 Long subpartId = Long.valueOf(classEl.attributeValue("subpart", classEl.attributeValue("course"))); 605 List<Lecture> sames = sameLectures.get(subpartId); 606 if (sames == null) { 607 sames = new ArrayList<Lecture>(); 608 sameLectures.put(subpartId, sames); 609 } 610 sames.add(lecture); 611 } 612 String parent = classEl.attributeValue("parent"); 613 if (parent != null) 614 parents.put(lecture, parent); 615 616 getModel().addVariable(lecture); 617 618 if (lecture.isCommitted()) { 619 Placement placement = assignedPlacements.get(lecture); 620 if (classEl.attribute("assignment") != null) 621 placement.setAssignmentId(Long.valueOf(classEl.attributeValue("assignment"))); 622 for (InstructorConstraint ic : ics) 623 ic.setNotAvailable(placement); 624 for (RoomConstraint rc : roomConstraintsThisClass) 625 if (rc.getConstraint()) 626 rc.setNotAvailable(placement); 627 } else { 628 for (InstructorConstraint ic : ics) 629 ic.addVariable(lecture); 630 for (RoomConstraint rc : roomConstraintsThisClass) 631 rc.addVariable(lecture); 632 } 633 634 iProgress.incProgress(); 635 } 636 637 for (Map.Entry<Lecture, String> entry : parents.entrySet()) { 638 Lecture lecture = entry.getKey(); 639 Lecture parent = lectures.get(entry.getValue()); 640 if (parent == null) { 641 iProgress.warn("Parent class " + entry.getValue() + " does not exists."); 642 } else { 643 lecture.setParent(parent); 644 } 645 } 646 647 iProgress.setPhase("Creating constraints ...", root.element("groupConstraints").elements("constraint").size()); 648 HashMap<String, Element> grConstraintElements = new HashMap<String, Element>(); 649 HashMap<String, Constraint<Lecture, Placement>> groupConstraints = new HashMap<String, Constraint<Lecture, Placement>>(); 650 for (Iterator<?> i1 = root.element("groupConstraints").elementIterator("constraint"); i1.hasNext();) { 651 Element grConstraintEl = (Element) i1.next(); 652 Constraint<Lecture, Placement> c = null; 653 if ("SPREAD".equals(grConstraintEl.attributeValue("type"))) { 654 c = new SpreadConstraint(getModel().getProperties(), grConstraintEl.attributeValue("name", "spread")); 655 } else if ("MIN_ROOM_USE".equals(grConstraintEl.attributeValue("type"))) { 656 c = new MinimizeNumberOfUsedRoomsConstraint(getModel().getProperties()); 657 } else if ("CLASS_LIMIT".equals(grConstraintEl.attributeValue("type"))) { 658 if (grConstraintEl.element("parentClass") == null) { 659 c = new ClassLimitConstraint(Integer.parseInt(grConstraintEl.attributeValue("courseLimit")), 660 grConstraintEl.attributeValue("name", "class-limit")); 661 } else { 662 String classId = grConstraintEl.element("parentClass").attributeValue("id"); 663 c = new ClassLimitConstraint(lectures.get(classId), grConstraintEl.attributeValue("name", 664 "class-limit")); 665 } 666 if (grConstraintEl.attributeValue("delta") != null) 667 ((ClassLimitConstraint) c).setClassLimitDelta(Integer.parseInt(grConstraintEl 668 .attributeValue("delta"))); 669 } else if ("MIN_GRUSE(10x1h)".equals(grConstraintEl.attributeValue("type"))) { 670 c = new MinimizeNumberOfUsedGroupsOfTime(getModel().getProperties(), "10x1h", 671 MinimizeNumberOfUsedGroupsOfTime.sGroups10of1h); 672 } else if ("MIN_GRUSE(5x2h)".equals(grConstraintEl.attributeValue("type"))) { 673 c = new MinimizeNumberOfUsedGroupsOfTime(getModel().getProperties(), "5x2h", 674 MinimizeNumberOfUsedGroupsOfTime.sGroups5of2h); 675 } else if ("MIN_GRUSE(3x3h)".equals(grConstraintEl.attributeValue("type"))) { 676 c = new MinimizeNumberOfUsedGroupsOfTime(getModel().getProperties(), "3x3h", 677 MinimizeNumberOfUsedGroupsOfTime.sGroups3of3h); 678 } else if ("MIN_GRUSE(2x5h)".equals(grConstraintEl.attributeValue("type"))) { 679 c = new MinimizeNumberOfUsedGroupsOfTime(getModel().getProperties(), "2x5h", 680 MinimizeNumberOfUsedGroupsOfTime.sGroups2of5h); 681 } else if (IgnoreStudentConflictsConstraint.REFERENCE.equals(grConstraintEl.attributeValue("type"))) { 682 c = new IgnoreStudentConflictsConstraint(); 683 } else { 684 try { 685 FlexibleConstraintType f = FlexibleConstraintType.valueOf(grConstraintEl.attributeValue("type")); 686 try { 687 c = f.create( 688 Long.valueOf(grConstraintEl.attributeValue("id")), 689 grConstraintEl.attributeValue("owner"), 690 grConstraintEl.attributeValue("pref"), 691 grConstraintEl.attributeValue("reference")); 692 } catch (IllegalArgumentException e) { 693 iProgress.warn("Failed to create flexible constraint " + grConstraintEl.attributeValue("type") + ": " + e.getMessage(), e); 694 continue; 695 } 696 } catch (IllegalArgumentException e) { 697 // type did not match, continue with group constraint types 698 c = new GroupConstraint( 699 Long.valueOf(grConstraintEl.attributeValue("id")), 700 GroupConstraint.getConstraintType(grConstraintEl.attributeValue("type")), 701 grConstraintEl.attributeValue("pref")); 702 } 703 } 704 getModel().addConstraint(c); 705 for (Iterator<?> i2 = grConstraintEl.elementIterator("class"); i2.hasNext();) { 706 String classId = ((Element) i2.next()).attributeValue("id"); 707 Lecture other = lectures.get(classId); 708 if (other != null) 709 c.addVariable(other); 710 else 711 iProgress.warn("Class " + classId + " does not exists, but it is referred from group constraint " + c.getId() + " (" + c.getName() + ")"); 712 } 713 grConstraintElements.put(grConstraintEl.attributeValue("id"), grConstraintEl); 714 groupConstraints.put(grConstraintEl.attributeValue("id"), c); 715 iProgress.incProgress(); 716 } 717 718 iProgress.setPhase("Loading students ...", root.element("students").elements("student").size()); 719 boolean initialSectioning = true; 720 HashMap<Long, Student> students = new HashMap<Long, Student>(); 721 HashMap<Long, Set<Student>> offering2students = new HashMap<Long, Set<Student>>(); 722 for (Iterator<?> i1 = root.element("students").elementIterator("student"); i1.hasNext();) { 723 Element studentEl = (Element) i1.next(); 724 List<Lecture> lecturesThisStudent = new ArrayList<Lecture>(); 725 Long studentId = Long.valueOf(studentEl.attributeValue("id")); 726 Student student = students.get(studentId); 727 if (student == null) { 728 student = new Student(studentId); 729 students.put(studentId, student); 730 getModel().addStudent(student); 731 } 732 student.setAcademicArea(studentEl.attributeValue("area")); 733 student.setAcademicClassification(studentEl.attributeValue("classification")); 734 student.setMajor(studentEl.attributeValue("major")); 735 student.setCurriculum(studentEl.attributeValue("curriculum")); 736 for (Iterator<?> i2 = studentEl.elementIterator("offering"); i2.hasNext();) { 737 Element ofEl = (Element) i2.next(); 738 Long offeringId = Long.valueOf(ofEl.attributeValue("id")); 739 String priority = ofEl.attributeValue("priority"); 740 student.addOffering(offeringId, Double.parseDouble(ofEl.attributeValue("weight", "1.0")), priority == null ? null : Double.valueOf(priority)); 741 Set<Student> studentsThisOffering = offering2students.get(offeringId); 742 if (studentsThisOffering == null) { 743 studentsThisOffering = new HashSet<Student>(); 744 offering2students.put(offeringId, studentsThisOffering); 745 } 746 studentsThisOffering.add(student); 747 String altId = ofEl.attributeValue("alternative"); 748 if (altId != null) 749 student.addAlternatives(Long.valueOf(altId), offeringId); 750 } 751 for (Iterator<?> i2 = studentEl.elementIterator("class"); i2.hasNext();) { 752 String classId = ((Element) i2.next()).attributeValue("id"); 753 Lecture lecture = lectures.get(classId); 754 if (lecture == null) { 755 iProgress.warn("Class " + classId + " does not exists, but it is referred from student " + student.getId()); 756 continue; 757 } 758 if (lecture.isCommitted()) { 759 if (sectionWholeCourse && (lecture.getParent() != null || lecture.getConfiguration() != null)) { 760 // committed, but with course structure -- sectioning can be used 761 student.addLecture(lecture); 762 student.addConfiguration(lecture.getConfiguration()); 763 lecture.addStudent(getAssignment(), student); 764 lecturesThisStudent.add(lecture); 765 initialSectioning = false; 766 } else { 767 Placement placement = assignedPlacements.get(lecture); 768 student.addCommitedPlacement(placement); 769 } 770 } else { 771 student.addLecture(lecture); 772 student.addConfiguration(lecture.getConfiguration()); 773 lecture.addStudent(getAssignment(), student); 774 lecturesThisStudent.add(lecture); 775 initialSectioning = false; 776 } 777 } 778 779 for (Iterator<?> i2 = studentEl.elementIterator("prohibited-class"); i2.hasNext();) { 780 String classId = ((Element) i2.next()).attributeValue("id"); 781 Lecture lecture = lectures.get(classId); 782 if (lecture != null) 783 student.addCanNotEnroll(lecture); 784 else 785 iProgress.warn("Class " + classId + " does not exists, but it is referred from student " + student.getId()); 786 } 787 788 if (studentEl.attributeValue("instructor") != null) 789 student.setInstructor(instructorConstraints.get(studentEl.attributeValue("instructor"))); 790 791 iProgress.incProgress(); 792 } 793 794 if (root.element("groups") != null) { 795 iProgress.setPhase("Loading student groups ...", root.element("groups").elements("group").size()); 796 for (Iterator<?> i1 = root.element("groups").elementIterator("group"); i1.hasNext();) { 797 Element groupEl = (Element)i1.next(); 798 long groupId = Long.parseLong(groupEl.attributeValue("id")); 799 StudentGroup group = new StudentGroup(groupId, Double.parseDouble(groupEl.attributeValue("weight", "1.0")), groupEl.attributeValue("name", "Group-" + groupId)); 800 getModel().addStudentGroup(group); 801 for (Iterator<?> i2 = groupEl.elementIterator("student"); i2.hasNext();) { 802 Element studentEl = (Element)i2.next(); 803 Student student = students.get(Long.valueOf(studentEl.attributeValue("id"))); 804 if (student != null) { 805 group.addStudent(student); student.addGroup(group); 806 } 807 } 808 } 809 } 810 811 for (List<Lecture> sames: sameLectures.values()) { 812 for (Lecture lect : sames) { 813 lect.setSameSubpartLectures(sames); 814 } 815 } 816 817 if (initialSectioning) { 818 iProgress.setPhase("Initial sectioning ...", offering2students.size()); 819 for (Map.Entry<Long, Set<Student>> entry : offering2students.entrySet()) { 820 Long offeringId = entry.getKey(); 821 Set<Student> studentsThisOffering = entry.getValue(); 822 List<Configuration> altConfigs = alternativeConfigurations.get(offeringId); 823 getModel().getStudentSectioning().initialSectioning(getAssignment(), offeringId, String.valueOf(offeringId), studentsThisOffering, altConfigs); 824 iProgress.incProgress(); 825 } 826 for (Student student: students.values()) { 827 student.clearDistanceCache(); 828 if (student.getInstructor() != null) 829 for (Lecture lecture: student.getInstructor().variables()) { 830 student.addLecture(lecture); 831 student.addConfiguration(lecture.getConfiguration()); 832 lecture.addStudent(getAssignment(), student); 833 } 834 } 835 } 836 837 iProgress.setPhase("Computing jenrl ...", students.size()); 838 HashMap<Lecture, HashMap<Lecture, JenrlConstraint>> jenrls = new HashMap<Lecture, HashMap<Lecture, JenrlConstraint>>(); 839 for (Iterator<Student> i1 = students.values().iterator(); i1.hasNext();) { 840 Student st = i1.next(); 841 for (Iterator<Lecture> i2 = st.getLectures().iterator(); i2.hasNext();) { 842 Lecture l1 = i2.next(); 843 for (Iterator<Lecture> i3 = st.getLectures().iterator(); i3.hasNext();) { 844 Lecture l2 = i3.next(); 845 if (l1.getId() >= l2.getId()) 846 continue; 847 HashMap<Lecture, JenrlConstraint> x = jenrls.get(l1); 848 if (x == null) { 849 x = new HashMap<Lecture, JenrlConstraint>(); 850 jenrls.put(l1, x); 851 } 852 JenrlConstraint jenrl = x.get(l2); 853 if (jenrl == null) { 854 jenrl = new JenrlConstraint(); 855 jenrl.addVariable(l1); 856 jenrl.addVariable(l2); 857 getModel().addConstraint(jenrl); 858 x.put(l2, jenrl); 859 } 860 jenrl.incJenrl(getAssignment(), st); 861 } 862 } 863 iProgress.incProgress(); 864 } 865 866 if (iDeptBalancing) { 867 iProgress.setPhase("Creating dept. spread constraints ...", getModel().variables().size()); 868 HashMap<Long, DepartmentSpreadConstraint> depSpreadConstraints = new HashMap<Long, DepartmentSpreadConstraint>(); 869 for (Lecture lecture : getModel().variables()) { 870 if (lecture.getDepartment() == null) 871 continue; 872 DepartmentSpreadConstraint deptConstr = depSpreadConstraints.get(lecture.getDepartment()); 873 if (deptConstr == null) { 874 String name = depts.get(lecture.getDepartment()); 875 deptConstr = new DepartmentSpreadConstraint(getModel().getProperties(), lecture.getDepartment(), 876 (name != null ? name : "d" + lecture.getDepartment())); 877 depSpreadConstraints.put(lecture.getDepartment(), deptConstr); 878 getModel().addConstraint(deptConstr); 879 } 880 deptConstr.addVariable(lecture); 881 iProgress.incProgress(); 882 } 883 } 884 885 if (getModel().getProperties().getPropertyBoolean("General.PurgeInvalidPlacements", true)) { 886 iProgress.setPhase("Purging invalid placements ...", getModel().variables().size()); 887 for (Lecture lecture : getModel().variables()) { 888 lecture.purgeInvalidValues(iInteractiveMode); 889 iProgress.incProgress(); 890 } 891 } 892 893 if (getModel().hasConstantVariables() && getModel().constantVariables().size() > 0) { 894 iProgress.setPhase("Assigning committed classes ...", assignedPlacements.size()); 895 for (Map.Entry<Lecture, Placement> entry : assignedPlacements.entrySet()) { 896 Lecture lecture = entry.getKey(); 897 Placement placement = entry.getValue(); 898 if (!lecture.isCommitted()) { iProgress.incProgress(); continue; } 899 lecture.setConstantValue(placement); 900 getModel().weaken(getAssignment(), placement); 901 Map<Constraint<Lecture, Placement>, Set<Placement>> conflictConstraints = getModel().conflictConstraints(getAssignment(), placement); 902 if (conflictConstraints.isEmpty()) { 903 getAssignment().assign(0, placement); 904 } else { 905 iProgress.warn("WARNING: Unable to assign " + lecture.getName() + " := " + placement.getName()); 906 iProgress.debug(" Reason:"); 907 for (Constraint<Lecture, Placement> c : conflictConstraints.keySet()) { 908 Set<Placement> vals = conflictConstraints.get(c); 909 for (Placement v : vals) { 910 iProgress.debug(" " + v.variable().getName() + " = " + v.getName()); 911 } 912 iProgress.debug(" in constraint " + c); 913 } 914 } 915 iProgress.incProgress(); 916 } 917 } 918 919 if (currentSolution != null) { 920 iProgress.setPhase("Creating best assignment ...", 2 * getModel().variables().size()); 921 for (Lecture lecture : getModel().variables()) { 922 iProgress.incProgress(); 923 Placement placement = lecture.getBestAssignment(); 924 if (placement == null) continue; 925 getModel().weaken(getAssignment(), placement); 926 getAssignment().assign(0, placement); 927 } 928 929 currentSolution.saveBest(); 930 for (Lecture lecture : getModel().variables()) { 931 iProgress.incProgress(); 932 getAssignment().unassign(0, lecture); 933 } 934 } 935 936 iProgress.setPhase("Creating initial assignment ...", assignedPlacements.size()); 937 for (Map.Entry<Lecture, Placement> entry : assignedPlacements.entrySet()) { 938 Lecture lecture = entry.getKey(); 939 Placement placement = entry.getValue(); 940 if (lecture.isCommitted()) { iProgress.incProgress(); continue; } 941 getModel().weaken(getAssignment(), placement); 942 Map<Constraint<Lecture, Placement>, Set<Placement>> conflictConstraints = getModel().conflictConstraints(getAssignment(), placement); 943 if (conflictConstraints.isEmpty()) { 944 if (!placement.isValid()) { 945 iProgress.warn("WARNING: Lecture " + lecture.getName() + " does not contain assignment " 946 + placement.getLongName(true) + " in its domain (" + placement.getNotValidReason(getAssignment(), true) + ")."); 947 } else 948 getAssignment().assign(0, placement); 949 } else { 950 iProgress.warn("WARNING: Unable to assign " + lecture.getName() + " := " + placement.getName()); 951 iProgress.debug(" Reason:"); 952 for (Constraint<Lecture, Placement> c : conflictConstraints.keySet()) { 953 Set<Placement> vals = conflictConstraints.get(c); 954 for (Placement v : vals) { 955 iProgress.debug(" " + v.variable().getName() + " = " + v.getName()); 956 } 957 iProgress.debug(" in constraint " + c); 958 } 959 } 960 iProgress.incProgress(); 961 } 962 963 if (initialSectioning && getAssignment().nrAssignedVariables() != 0 && !getModel().getProperties().getPropertyBoolean("Global.LoadStudentEnrlsFromSolution", false)) 964 getModel().switchStudents(getAssignment()); 965 966 if (iForcedPerturbances > 0) { 967 iProgress.setPhase("Forcing perturbances", iForcedPerturbances); 968 for (int i = 0; i < iForcedPerturbances; i++) { 969 iProgress.setProgress(i); 970 Lecture var = null; 971 do { 972 var = ToolBox.random(getModel().variables()); 973 } while (var.getInitialAssignment() == null || var.values(getAssignment()).size() <= 1); 974 var.removeInitialValue(); 975 } 976 } 977 978 /* 979 for (Constraint<Lecture, Placement> c : getModel().constraints()) { 980 if (c instanceof SpreadConstraint) 981 ((SpreadConstraint) c).init(); 982 if (c instanceof DiscouragedRoomConstraint) 983 ((DiscouragedRoomConstraint) c).setEnabled(true); 984 if (c instanceof MinimizeNumberOfUsedRoomsConstraint) 985 ((MinimizeNumberOfUsedRoomsConstraint) c).setEnabled(true); 986 if (c instanceof MinimizeNumberOfUsedGroupsOfTime) 987 ((MinimizeNumberOfUsedGroupsOfTime) c).setEnabled(true); 988 } 989 */ 990 } 991 992 public static Date getDate(int year, int dayOfYear) { 993 Calendar c = Calendar.getInstance(Locale.US); 994 c.set(year, 1, 1, 0, 0, 0); 995 c.set(Calendar.DAY_OF_YEAR, dayOfYear); 996 return c.getTime(); 997 } 998 999 public static class DatePattern { 1000 Long iId; 1001 String iName; 1002 BitSet iPattern; 1003 public DatePattern() {} 1004 public DatePattern(Long id, String name, BitSet pattern) { 1005 setId(id); setName(name); setPattern(pattern); 1006 } 1007 public DatePattern(Long id, String name, String pattern) { 1008 setId(id); setName(name); setPattern(pattern); 1009 } 1010 public Long getId() { return iId; } 1011 public void setId(Long id) { iId = id; } 1012 public String getName() { return iName; } 1013 public void setName(String name) { iName = name; } 1014 public BitSet getPattern() { return iPattern; } 1015 public void setPattern(BitSet pattern) { iPattern = pattern; } 1016 public void setPattern(String pattern) { 1017 iPattern = new BitSet(pattern.length()); 1018 for (int i = 0; i < pattern.length(); i++) 1019 if (pattern.charAt(i) == '1') 1020 iPattern.set(i); 1021 } 1022 public void setPattern(int startDay, int endDay) { 1023 iPattern = new BitSet(366); 1024 for (int d = startDay; d <= endDay; d++) 1025 iPattern.set(d); 1026 } 1027 } 1028}